SEC Filing | ImmunoGen, Inc.

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2019

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission file number 0-17999

ImmunoGen, Inc.

Massachusetts		04-2726691
(State or other jurisdiction of incorporation or organization)		(I.R.S. Employer Identification No.)

830 Winter Street, Waltham, MA 02451

(Address of principal executive offices, including zip code)

(781) 895-0600

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

	Title of Each Class		Trading Symbol		Name of Each Exchange on Which Registered
	Common Stock, $.01 par value		IMGN		NASDAQ Global Select Market

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. ⌧ Yes ◻ No

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). ⌧ Yes ◻ No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12-b2 of the Exchange Act.

Large accelerated filer ⌧	Accelerated filer ◻
Non-accelerated filer ◻	Smaller reporting company ☐
	Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ◻

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). ☐ Yes ⌧ No

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date.

Shares of common stock, par value $.01 per share: 149,884,816 shares outstanding as of July 31, 2019.

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IMMUNOGEN, INC.

FORM 10-Q

FOR THE QUARTER ENDED JUNE 30, 2019

TABLE OF CONTENTS


Item		Page Number
	Part I
	Financial Information
1.	Financial Statements (Unaudited)	2

1a.	Consolidated Balance Sheets as of June 30, 2019 and December 31, 2018	2

1b.	Consolidated Statements of Operations and Comprehensive Loss for the three and six months ended June 30, 2019 and 2018	3

1c.	Consolidated Statements of Shareholders’ (Deficit) Equity for the three months ended March 31 and June 30, 2019 and three months ended March 31, June 30, September 30 and December 31, 2018	4

1d.	Consolidated Statements of Cash Flows for the six months ended June 30, 2019 and 2018	5

1e.	Notes to Consolidated Financial Statements	6

2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	24

3.	Quantitative and Qualitative Disclosures about Market Risk	34

4.	Controls and Procedures	34

	Part II
	Other Information
1A.	Risk Factors	34

5.	Other Information	34

6.	Exhibits	35

	Signatures	36

Forward looking statements

This report includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements relate to analyses and other information which are based on forecasts of future results and estimates of amounts that are not yet determinable. These statements also relate to our future prospects, developments, and business strategies. These forward-looking statements are identified by their use of terms and phrases such as “anticipate,” “believe,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “predict,” “project,” “will,” and other similar terms and phrases, including references to assumptions. These statements are contained in the “Business” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” sections, as well as other sections of this report.

These forward-looking statements involve known and unknown risks, uncertainties, and other factors that may cause actual results to be materially different from those contemplated by our forward-looking statements. These known and unknown risks, uncertainties, and other factors are described in detail in the “Risk Factors” section and in other sections of this report and our Annual Report on Form 10-K for the year ended December 31, 2018. We disclaim any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events, or otherwise.

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ITEM 1. Financial Statements

IMMUNOGEN, INC.

CONSOLIDATED BALANCE SHEETS

(UNAUDITED)

In thousands, except per share amounts


	June 30,		December 31,
	2019		2018
ASSETS
Cash and cash equivalents	$	239,825	$	262,252
Accounts receivable		—		1,701
Unbilled revenue/reimbursement		2,474		617
Contract asset		—		500
Non-cash royalty receivable		10,430		9,249
Prepaid and other current assets		6,649		4,462
Total current assets		259,378		278,781
Property and equipment, net of accumulated depreciation		10,052		12,891
Operating lease right-of-use assets		16,389		—
Other assets		1,850		3,709
Total assets	$	287,669	$	295,381
LIABILITIES AND SHAREHOLDERS’ (DEFICIT) EQUITY
Accounts payable	$	7,809	$	11,365
Accrued compensation		19,564		11,796
Other accrued liabilities		14,681		20,465
Current portion of deferred lease incentive		—		837
Current portion of liability related to the sale of future royalties, net of deferred financing costs of $715 and $753, respectively		29,484		25,880
Current portion of operating lease liability		2,761		—
Current portion of deferred revenue		317		317
Total current liabilities		74,616		70,660
Deferred lease incentive, net of current portion		—		4,675
Deferred revenue, net of current portion		145,614		80,485
Operating lease liability - net of current portion		23,334		—
Convertible 4.5% senior notes, net of deferred financing costs of $29 and $36, respectively		2,071		2,064
Liability related to the sale of future royalties, net of current portion and deferred financing costs of $1,175 and $1,536, respectively		108,265		122,345
Other long-term liabilities		1,943		4,180
Total liabilities		355,843		284,409
Commitments and contingencies (Note I)
Shareholders’ deficit:
Preferred stock, $.01 par value; authorized 5,000 shares; no shares issued and outstanding		—		—
Common stock, $0.01 par value; authorized 200,000 shares; issued and outstanding 149,885 and 149,400 shares as of June 30, 2019 and December 31, 2018, respectively		1,498		1,494
Additional paid-in capital		1,200,860		1,192,813
Accumulated deficit		(1,270,532)		(1,183,335)
Total shareholders’ (deficit) equity		(68,174)		10,972
Total liabilities and shareholders’ (deficit) equity	$	287,669	$	295,381

The accompanying notes are an integral part of the consolidated financial statements.

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IMMUNOGEN, INC.

CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS

(UNAUDITED)

In thousands, except per share amounts


	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2019		2018		2019		2018
Revenues:
License and milestone fees	$	5,079	$	1,321	$	5,158	$	12,861
Non-cash royalty revenue related to the sale of future royalties		10,412		7,242		18,900		14,432
Research and development support		51		388		68		771
Clinical materials revenue		—		336		—		1,038
Total revenues		15,542		9,287		24,126		29,102
Operating expenses:
Research and development		28,559		38,701		67,452		83,532
General and administrative		8,700		8,652		19,478		18,647
Restructuring charge		19,342		686		19,901		2,417
Total operating expenses		56,601		48,039		106,831		104,596
Loss from operations		(41,059)		(38,752)		(82,705)		(75,494)
Investment income, net		1,287		814		2,709		1,476
Non-cash interest expense on liability related to the sale of future royalties and convertible senior notes		(3,818)		(2,611)		(7,250)		(5,657)
Interest expense on convertible senior notes		(23)		(23)		(47)		(47)
Other income (expense), net		167		(1,052)		96		(515)
Net loss	$	(43,446)	$	(41,624)	$	(87,197)	$	(80,237)
Basic and diluted net loss per common share	$	(0.29)	$	(0.31)	$	(0.59)	$	(0.61)
Basic and diluted weighted average common shares outstanding		148,129		134,384		147,972		132,512
Total comprehensive loss	$	(43,446)	$	(41,624)	$	(87,197)	$	(80,237)

The accompanying notes are an integral part of the consolidated financial statements.

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IMMUNOGEN, INC.

CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ (DEFICIT) EQUITY

(UNAUDITED)

In thousands


				Additional				Total
	Common Stock			Paid-In		Accumulated		Shareholders’
	Shares	Amount		Capital		Deficit		(Deficit) Equity
Balance at December 31, 2017	132,526	$	1,325	$	1,009,362	$	(1,028,582)	$	(17,895)
Transition adjustment for ASC 606	—		—		—		14,090		14,090
Net loss	—		—		—		(38,613)		(38,613)
Issuance of common stock pursuant to the exercise of stock options	421		4		2,255		—		2,259
Stock option and restricted stock compensation expense	—		—		3,746		—		3,746
Directors' deferred share units converted	77		1		(1)		—		—
Directors’ deferred share unit compensation	—		—		102		—		102
Balance at March 31, 2018	133,024	$	1,330	$	1,015,464	$	(1,053,105)	$	(36,311)
Net loss	—		—		—		(41,624)		(41,624)
Issuance of common stock pursuant to the exercise of stock options	146		1		558		—		559
Issuance of common stock	15,755		158		162,382		—		162,540
Stock option and restricted stock compensation expense	—		—		3,971		—		3,971
Directors' deferred share units converted	96		1		—		—		1
Directors’ deferred share unit compensation	—		—		54		—		54
Balance at June 30, 2018	149,021	$	1,490	$	1,182,429	$	(1,094,729)	$	89,190
Net loss	—		—		—		(46,807)		(46,807)
Issuance of common stock pursuant to the exercise of stock options	28		—		124		—		124
Issuance of common stock	—		—		(28)		—		(28)
Stock option and restricted stock compensation expense	—		—		4,308		—		4,308
Directors’ deferred share unit compensation	—		—		102		—		102
Balance at September 30, 2018	149,049	$	1,490	$	1,186,935	$	(1,141,536)	$	46,889
Net loss	—		—		—		(41,799)		(41,799)
Issuance of common stock pursuant to the exercise of stock options and employee stock purchase plan	351		4		1,355		—		1,359
Stock option and restricted stock compensation expense	—		—		4,420		—		4,420
Directors’ deferred share unit compensation	—		—		103		—		103
Balance at December 31, 2018	149,400	$	1,494	$	1,192,813	$	(1,183,335)	$	10,972
Net loss	—		—		—		(43,751)		(43,751)
Issuance of common stock pursuant to the exercise of stock options and employee stock purchase plan	25		—		68		—		68
Stock option and restricted stock compensation expense	—		—		5,007		—		5,007
Directors’ deferred share unit compensation	—		—		100		—		100
Balance at March 31, 2019	149,425	$	1,494	$	1,197,988	$	(1,227,086)	$	(27,604)
Net loss	—		—		—		(43,446)		(43,446)
Issuance of common stock pursuant to the exercise of stock options and employee stock purchase plan	354		3		667		—		670
Restricted stock award	106		1		(1)		—		—
Stock option and restricted stock compensation expense	—		—		2,106		—		2,106
Directors’ deferred share unit compensation	—		—		100		—		100
Balance at June 30, 2019	149,885	$	1,498	$	1,200,860	$	(1,270,532)	$	(68,174)

The accompanying notes are an integral part of the consolidated financial statements.

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IMMUNOGEN, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(UNAUDITED)

In thousands


	Six Months Ended
	June 30,
	2019		2018

Cash flows from operating activities:
Net loss	$	(87,197)	$	(80,237)
Adjustments to reconcile net loss to net cash used for operating activities:
Non-cash royalty revenue related to sale of future royalties		(18,900)		(14,432)
Non-cash interest expense on liability related to sale of future royalties and convertible senior notes		7,250		5,657
Depreciation and amortization		2,438		5,056
Loss (gain) on sale/disposal of fixed assets and impairment charges		2,404		(30)
Operating lease right-of-use asset impairment		559		—
Stock and deferred share unit compensation		7,313		7,872
Deferred rent		—		(59)
Change in operating assets and liabilities:
Accounts receivable		1,701		2,630
Unbilled revenue/reimbursement		(1,857)		2,058
Inventory		—		(852)
Contract asset		500		—
Prepaid and other current assets		(2,187)		(6,926)
Operating lease right-of-use assets		664		—
Other assets		1,859		(640)
Accounts payable		(3,199)		3,871
Accrued compensation		9,238		(2,949)
Other accrued liabilities		(5,346)		1,896
Deferred revenue		65,129		(8,196)
Operating lease liability		(1,179)		—
Net cash used for operating activities		(20,810)		(85,281)
Cash flows from investing activities:
Purchases of property and equipment		(2,355)		(2,127)
Net cash used for investing activities		(2,355)		(2,127)
Cash flows from financing activities:
Proceeds from issuance of common stock under stock plans		738		2,819
Proceeds from common stock issuance, net of $367 of transaction costs		—		162,540
Net cash provided by financing activities		738		165,359
Net change in cash and cash equivalents		(22,427)		77,951
Cash and cash equivalents, beginning of period		262,252		267,107
Cash and cash equivalents, end of period	$	239,825	$	345,058

The accompanying notes are an integral part of the consolidated financial statements.

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IMMUNOGEN, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2019

A.	Nature of Business and Plan of Operations

ImmunoGen, Inc. (the Company) was incorporated in Massachusetts in 1981 and is focused on the development of antibody-drug conjugates, or ADC, therapeutics. The Company has generally incurred operating losses and negative cash flows from operations since inception, incurred a net loss of $87.2 million during the six months ended June 30, 2019, and has an accumulated deficit of approximately $1.3 billion as of June 30, 2019. The Company has primarily funded these losses through payments received from its collaborations and equity and convertible debt financings. To date, the Company has no product revenue and management expects operating losses to continue for the foreseeable future.

At June 30, 2019, the Company had $239.8 million of cash and cash equivalents on hand. On June 26, 2019, the Board of Directors approved a plan to restructure the business to focus resources on continued development of mirvetuximab soravtansine and a select portfolio of three earlier-stage product candidates, resulting in a reduction of workforce by approximately 220 positions. The Company anticipates that its current capital resources and expense reductions resulting from these operational changes will enable it to meet its operational expenses and capital expenditures for more than twelve months after the date these financial statements are issued. The Company may raise additional funds through equity or debt financings or generate revenues from collaborators through a combination of upfront license payments, milestone payments, royalty payments, and research funding. There can be no assurance that the Company will be able to obtain additional debt or equity financing or generate revenues from collaborators on terms acceptable to the Company or at all. The failure of the Company to obtain sufficient funds on acceptable terms when needed could have a material adverse effect on the Company’s business, results of operations, and financial condition and require the Company to defer or limit some or all of its research, development, and/or clinical projects.

The Company is subject to risks common to companies in the biotechnology industry including, but not limited to, the development by its competitors of new technological innovations, dependence on key personnel, protection of proprietary technology, manufacturing and marketing limitations, complexities associated with managing collaboration arrangements, third-party reimbursements, and compliance with governmental regulations.

B.	Summary of Significant Accounting Policies

Basis of Presentation

The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries, ImmunoGen Securities Corp., ImmunoGen Europe Limited, ImmunoGen (Bermuda) Ltd., ImmunoGen BioPharma (Ireland) Limited, and Hurricane, LLC. All intercompany transactions and balances have been eliminated. The consolidated financial statements include all of the adjustments, consisting only of normal recurring adjustments, which management considers necessary for a fair presentation of the Company’s financial position in accordance with accounting principles generally accepted in the U.S. for interim financial information. The December 31, 2018, condensed consolidated balance sheet data presented for comparative purposes were derived from the Company’s audited financial statements, but certain information and footnote disclosures normally included in the Company’s annual financial statements have been condensed or omitted. The preparation of interim financial statements requires the use of management’s estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the interim financial statements and the reported amounts of revenues and expenditures during the reported periods. The results of the interim periods are not necessarily indicative of the results for the entire year. Accordingly, the interim financial statements should be read in conjunction with the audited financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018.

Subsequent Events

The Company has evaluated all events or transactions that occurred after June 30, 2019, up through the date the Company issued these financial statements. The Company did not have any material recognizable or unrecognizable subsequent events during this period.

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Revenue Recognition

The Company enters into licensing and development agreements with collaborators for the development of

ADCs. The terms of these agreements contain multiple deliverables/performance obligations which may include (i) licenses, or options to obtain licenses, to the Company’s ADC technology, (ii) rights to future technological improvements, (iii) research activities to be performed on behalf of the collaborative partner, (iv) delivery of cytotoxic agents, and (v) prior to the decommission of the Company’s Norwood facility in 2018, the manufacture of preclinical or clinical materials for the collaborative partner. Payments to the Company under these agreements may include upfront fees, option fees, exercise fees, payments for research activities, payments for the manufacture of preclinical or clinical materials, payments based upon the achievement of certain milestones, and royalties on product sales. The Company follows the provisions of Accounting Standards Codification Topic 606 - Revenue from Contracts with Customers (ASC 606) in accounting for these agreements.

Revenue is recognized when a customer obtains control of promised goods or services, in an amount that reflects the consideration which the entity expects to receive in exchange for those goods or services. In determining the appropriate amount of revenue to be recognized as it fulfills its obligations under the agreements, the Company performs the following five steps: (i) identification of the promised goods or services in the contract; (ii) determination of whether the promised goods or services are performance obligations, including whether they are distinct in the context of the contract; (iii) measurement of the transaction price, including the constraint on variable consideration; (iv) allocation of the transaction price to the performance obligations; and (v) recognition of revenue when or as the Company satisfies each performance obligation.

The Company only applies the five-step model to contracts when it is probable that the Company will collect the consideration to which it is entitled in exchange for the goods or services it transfers to the customer. At contract inception, once the contract is determined to be within the scope of ASC 606, the Company assesses the goods or services promised within each contract and determines those that are performance obligations, and assesses whether each promised good or service is distinct. The Company then recognizes as revenue the amount of the transaction price that is allocated to the respective performance obligation when or as the performance obligation is satisfied.

As part of the accounting for the arrangement, the Company must develop assumptions that require judgment to determine the selling price for each performance obligation that was identified in the contract, which is discussed in further detail below.

At June 30, 2019, the Company had the following material types of agreements with the parties identified below:

●

Development and commercialization licenses, which provide the party with the right to use the Company’s ADC technology and/or certain other intellectual property to develop and commercialize anticancer compounds to a specified antigen target:

Bayer (one exclusive single-target license)

Biotest (one exclusive single-target license)

CytomX (one exclusive single-target license)

Debiopharm (one exclusive single-compound license)

Fusion Pharmaceuticals (one exclusive single-compound license)

Novartis (five exclusive single-target licenses)

Oxford BioTherapeutics/Menarini (one exclusive single target license sublicensed from Amgen)

Roche, through its Genentech unit (five exclusive single-target licenses)

Sanofi (five fully-paid, exclusive single-target licenses)

Takeda, through its wholly owned subsidiary, Millennium Pharmaceuticals, Inc. (one exclusive single-target license)

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●

Collaboration and option agreement for a defined period of time to secure development and commercialization licenses to develop and commercialize specified anticancer compounds on established terms:

Jazz Pharmaceuticals

●

Collaboration and license agreement to co-develop and co-commercialize a specified anticancer compound on established terms:

MacroGenics

There are no performance, cancellation, termination, or refund provisions in any of the arrangements that contain material financial consequences to the Company.

Development and Commercialization Licenses

The obligations under a development and commercialization license agreement generally include the license to the Company’s ADC technology with respect to a specified antigen target, and may also include obligations related to rights to future technological improvements, research activities to be performed on behalf of the collaborative partner and, previously, the manufacture of preclinical or clinical materials for the collaborative partner.

Generally, development and commercialization licenses contain non-refundable terms for payments and, depending on the terms of the agreement, provide that the Company will (i) prior to the Company’s restructuring of the business in June 2019, at the collaborator’s request, provide research services at negotiated prices which are generally consistent with what other third parties would charge, (ii) prior to the decommissioning of the Company’s Norwood facility in 2018, at the collaborator’s request, manufacture and provide preclinical and clinical materials or deliver cytotoxic agents at negotiated prices which are generally consistent with what other third parties would charge, (iii) earn payments upon the achievement of certain milestones, and (iv) earn royalty payments, generally until the later of the last applicable patent expiration or 10 to 12 years after product launch. Royalty rates may vary over the royalty term depending on the Company’s intellectual property rights and/or the presence of comparable competing products. In the case of Sanofi, its licenses are fully-paid and no further milestones or royalties will be received. In the case of Debiopharm, no royalties will be received. The Company may provide technical assistance and share any technology improvements with its collaborators during the term of the collaboration agreements. The Company does not directly control when or whether any collaborator will request research, achieve milestones, or become liable for royalty payments.

In determining the performance obligations, management evaluates whether the license is distinct, and has significant standalone functionality, from the undelivered elements to the collaborative partner based on the consideration of the relevant facts and circumstances for each arrangement. Factors considered in this determination include the research capabilities of the partner and the availability of ADC technology research expertise in the general marketplace and whether technological improvements are required for the continued functionality of the license. If the license to the Company’s intellectual property is determined to be distinct from the other performance obligations identified in the arrangement, the Company recognizes revenues from non-refundable, up-front fees allocated to the license when the license is transferred to the customer and the customer is able to use and benefit from the license.

The Company estimates the selling prices of the license and all other performance obligations based on market conditions, similar arrangements entered into by third parties, and entity-specific factors such as the terms of the Company’s previous collaborative agreements, recent preclinical and clinical testing results of therapeutic products that use the Company’s ADC technology, the Company’s pricing practices and pricing objectives, the likelihood that technological improvements will be made, and, if made, will be used by the Company’s collaborators, and the nature of the research services to be performed on behalf of its collaborators and market rates for similar services.

The Company recognizes revenue related to research services as the services are performed. The Company has also produced research material for potential collaborators under material transfer agreements. The Company is compensated at negotiated rates that are consistent with what other third parties would charge. The Company records amounts received for research materials produced or services performed as a component of research and development support revenue.

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Prior to 2019, the Company also provided cytotoxic agents to its collaborators and produced preclinical and clinical materials (drug substance) at negotiated prices generally consistent with what other third parties would charge. The Company recognized revenue on cytotoxic agents and on preclinical and clinical materials when the materials passed all quality testing required for collaborator acceptance and control had transferred to the collaborator. The majority of the Company’s costs to produce these preclinical and clinical materials were fixed and then allocated to each batch based on the number of batches produced during the period.

The Company recognizes revenue related to the rights to future technological improvements over the estimated term of the applicable license.

The Company’s development and commercialization license agreements have milestone payments which for reporting purposes are aggregated into three categories: (i) development milestones, (ii) regulatory milestones, and (iii) sales milestones. Development milestones are typically payable when a product candidate initiates or advances into different clinical trial phases. Regulatory milestones are typically payable upon submission for marketing approval with the U.S. Food and Drug Administration, or FDA, or other countries’ regulatory authorities or on receipt of actual marketing approvals for the compound or for additional indications. Sales milestones are typically payable when annual sales reach certain levels.

At the inception of each arrangement that includes developmental and regulatory milestone payments, the Company evaluates whether the achievement of each milestone specifically relates to the Company’s efforts to satisfy a performance obligation or transfer a distinct good or service within a performance obligation. If the achievement of a milestone is considered a direct result of the Company’s efforts to satisfy a performance obligation or transfer a distinct good or service and the receipt of the payment is based upon the achievement of the milestone, the associated milestone value is allocated to that distinct good or service. If the milestone payment is not specifically related to the Company’s effort to satisfy a performance obligation or transfer a distinct good or service, the amount is allocated to all performance obligations using the relative standalone selling price method. In addition, the Company evaluates the milestone to determine whether the milestone is considered probable of being reached and estimates the amount to be included in the transaction price using the most likely amount method. If it is probable that a significant revenue reversal would not occur, the associated milestone value is included in the transaction price to be allocated; otherwise, such amounts are considered constrained and excluded from the transaction price. At the end of each subsequent reporting period, the Company re-evaluates the probability of achievement of such development or regulatory milestones and any related constraint, and if necessary, adjusts its estimate of the transaction price. Any such adjustments to the transaction price are allocated to the performance obligations on the same basis as at contract inception. Amounts allocated to a satisfied performance obligation shall be recognized as revenue, or as a reduction of revenue, in the period in which the transaction price changes.

For development and commercialization license agreements that include sales-based royalties, including milestone payments based on the level of sales, and the license is deemed to be the predominant item to which the royalties relate, the Company recognizes revenue at the later of (i) when the related sales occur, or (ii) when the performance obligation to which some or all of the royalty has been allocated has been satisfied (or partially satisfied) in accordance with the royalty recognition constraint. Under the Company’s development and commercialization license agreements, except for the Sanofi and Debiopharm licenses, the Company receives royalty payments based upon its licensees’ net sales of covered products. Generally, under the development and commercialization agreements, the Company receives royalty reports and payments from its licensees approximately one quarter in arrears. The Company estimates the amount of royalty revenue to be recognized based on historical and forecasted sales and/or sales information from its licensees if available.

Collaboration and Option Agreements/Right-to-Test Agreements

The Company’s right-to-test agreements provide collaborators the right to test the Company’s ADC technology for a defined period of time through a research, or right-to-test, license. Under both right-to-test agreements and collaboration and option agreements, collaborators may (a) take options, for a defined period of time, to specified targets and (b) upon exercise of those options, secure or “take” licenses to develop and commercialize products for the specified targets on established terms. Under these agreements, fees may be due to the Company (i) at the inception of the arrangement (referred to as “upfront” fees or payments), (ii) upon the opt-in to acquire a development and commercialization license(s) (referred to as exercise fees or payments earned, if any, when the development and commercialization license is “taken”), (iii) at the collaborator’s request, after providing research services at negotiated

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prices, which are generally consistent with what other third parties would charge, or (iv) some combination of all of these fees.

The accounting for collaboration and option agreements and right-to-test agreements is dependent on the nature of the options granted to the collaborative partner. Options are considered distinct performance obligations if they provide a collaborator with a material right. Factors that are considered in evaluating whether options convey a material right include the overall objective of the arrangement, the benefit the collaborator might obtain from the agreement without exercising the options, the cost to exercise the options relative to the fair value of the licenses, and the additional financial commitments or economic penalties imposed on the collaborator as a result of exercising the options. As of June 30, 2019, all right-to-test agreements have expired.

If the Company concludes that an option provides the customer a material right, and therefore is a separate performance obligation, the Company then determines the estimated selling prices of the option and all other units of accounting using the following inputs: a) estimated fair value of each program, b) the amount the partner would pay to exercise the option to obtain the license, and c) probability of exercise.

The Company does not control when or if any collaborator will exercise its options for development and commercialization licenses. As a result, the Company cannot predict when or if it will recognize revenues in connection with any of the foregoing.

Upfront payments on development and commercialization licenses may be recognized upon delivery of the license if facts and circumstances dictate that the license has stand-alone functionality and is distinct from the undelivered elements.

In determining whether a collaboration and option agreement is within the scope of ASC 808, Collaborative Arrangements, management evaluates the level of involvement of both companies in the development and commercialization of the products to determine if both parties are active participants and if both parties are exposed to risks and rewards dependent on the commercial success of the licensed products. If the agreement is determined to be within the scope of ASC 808, the Company will segregate the research and development activities and the related cost sharing arrangement. Payments made by the Company for such activities will be recorded as research and development expense and reimbursements received from its partner will be recognized as an offset to research and development expense.

Transaction Price Allocated to Future Performance Obligations

Remaining performance obligations represent the transaction price of contracts for which work has not been performed (or has been partially performed) and includes unexercised contract options that are considered material rights. As of June 30, 2019, the aggregate amount of the transaction price allocated to remaining performance obligations comprising deferred revenue was $145.9 million. The Company expects to recognize revenue on approximately 24% and 76% of the remaining performance obligations over the next 13 to 60 months, and 61 to 120 months, respectively; however, it does not control when or if any collaborator will exercise its options for, or terminate existing development and commercialization licenses.

Contract Balances from Contracts with Customers

The following table presents changes in the Company’s contract assets and contract liabilities during the six months ended June 30, 2019 and 2018 (in thousands):


	Balance at						Balance at
Six months ended June 30, 2019	December 31, 2018		Additions		Deductions		End of Period
Contract asset	$	500	$	—	$	(500)	$	—
Contract liabilities	$	80,802	$	65,287	$	(158)	$	145,931


	Balance at
	January 1, 2018								Balance at
Six months ended June 30, 2018	(ASC 606 adoption)		Additions		Deductions		Impact of Netting		End of Period
Contract asset	$	—	$	—	$	(5,000)	$	5,000	$	—
Contract liabilities	$	89,967	$	—	$	(13,196)	$	5,000	$	81,771

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The Company recognized the following revenues as a result of changes in contract asset and contract liability balances in the respective periods (in thousands):


	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2019		2018		2019		2018
Revenue recognized in the period from:
Amounts included in contract liabilities at the beginning of the period	$	79	$	1,321	$	158	$	13,196
Performance obligations satisfied in previous periods	$	5,000	$	—	$	5,000	$	—

In accordance with ASC 606, a contract asset of $500,000 was recorded for a probable milestone in 2018 pursuant to a license agreement with Fusion Pharmaceuticals, which was subsequently paid during the six months ended June 30, 2019. During the three and six months ended June 30, 2019, the Company received a $5 million regulatory milestone payment earned under its license agreement with Genentech, a member of the Roche Group. The full amount of the milestone was recognized as revenue in the period as the amount allocated to future rights to technological improvements was not material. Also during the six months ended June 30, 2019, $65.2 million was recorded as deferred revenue as a result of a sale of the Company’s residual rights to receive royalty payments on commercial sales of Kadcyla® (ado-trastuzumab emtansine) as discussed in Note E, and $158,000 of amortization of deferred revenue was recorded related to numerous collaborators’ rights to technological improvements.

During the six months ended June 30, 2018, a contract asset of $5 million was recorded for a probable milestone under the Company’s license agreement with Takeda, which was netted against an approximate $1 million contract liability specifically related to the agreement. It was subsequently earned and paid during the six months ended June 30, 2018. Also during the prior year period, as a result of Takeda not executing a second license it had available, or extending or expanding its right-to-test agreement, the Company recognized $10.9 million of revenue previously deferred, with a net reduction in deferred revenue of $5.9 million due to contract asset and contract liability netting. In addition, $750,000 of the deferred revenue balance at December 31, 2017 was recognized as revenue during the six months ended June 30, 2018 upon completion of certain performance obligations under license agreements with Debiopharm and Fusion, $1.2 million of amortization of deferred revenue was recorded related to numerous collaborators’ rights to technological improvements, and $335,000 of revenue was recognized upon shipment of clinical materials to a partner.

The timing of revenue recognition, billings, and cash collections results in billed receivables, contract assets, and contract liabilities on the consolidated balance sheets. When consideration is received, or such consideration is unconditionally due, from a customer prior to transferring goods or services to the customer under the terms of a contract, a contract liability is recorded. Contract liabilities are recognized as revenue after control of the products or services is transferred to the customer and all revenue recognition criteria have been met.

Financial Instruments and Concentration of Credit Risk

Cash and cash equivalents are primarily maintained with three financial institutions in the U.S. Deposits with banks may exceed the amount of insurance provided on such deposits. Generally, these deposits may be redeemed upon demand and, therefore, bear minimal risk. The Company’s cash equivalents consist of money market funds with underlying investments primarily being U.S. Government issued securities and high quality, short term commercial paper. Financial instruments that potentially subject the Company to concentrations of credit risk consist principally of cash, cash equivalents, and marketable securities. The Company held no marketable securities as of June 30, 2019 and December 31, 2018. The Company’s investment policy, approved by the Board of Directors, limits the amount it may invest in any one type of investment, thereby reducing credit risk concentrations.

Cash and Cash Equivalents

All highly liquid financial instruments with maturities of three months or less when purchased are considered cash equivalents. As of June 30, 2019 and December 31, 2018, the Company held $239.8 million and $262.3 million, respectively, in cash and money market funds consisting principally of U.S. Government-issued securities and high quality, short-term commercial paper, which were classified as cash and cash equivalents.

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Non-cash Investing and Financing Activities

The Company had $30,000 and $715,000 of accrued capital expenditures as of June 30, 2019 and December 31, 2018, respectively, which have been treated as a non-cash investing activity and, accordingly, are not reflected in the consolidated statement of cash flows.

Fair Value of Financial Instruments

Fair value is defined under ASC Topic 820, “Fair Value Measurements and Disclosures,” as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. The standard describes a hierarchy to measure fair value which is based on three levels of inputs, of which the first two are considered observable and the last unobservable, as follows:

●

Level 1 - Quoted prices in active markets for identical assets or liabilities.

●

Level 2 - Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

●

Level 3 – Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.

As of June 30, 2019, the Company held certain assets that are required to be measured at fair value on a recurring basis. The following table represents the fair value hierarchy for the Company’s financial assets measured at fair value on a recurring basis as of June 30, 2019 (in thousands):

Fair Value Measurements at June 30, 2019 Using

Quoted Prices in

Significant

Active Markets for

Significant Other

Unobservable

Identical Assets

Observable Inputs

Inputs

Total

(Level 1)

(Level 2)

(Level 3)

Cash equivalents

220,555

—

As of December 31, 2018, the Company held certain assets that are required to be measured at fair value on a recurring basis. The following table represents the fair value hierarchy for the Company’s financial assets measured at fair value on a recurring basis as of December 31, 2018 (in thousands):

Fair Value Measurements at December 31, 2018 Using

Quoted Prices in

Significant

Active Markets for

Significant Other

Unobservable

Identical Assets

Observable Inputs

Inputs

Total

(Level 1)

(Level 2)

(Level 3)

Cash equivalents

242,604

—

The fair value of the Company’s cash equivalents is based on quoted prices from active markets.

The carrying amounts reflected in the consolidated balance sheets for accounts receivable, unbilled revenue, prepaid and other current assets, accounts payable, accrued compensation, and other accrued liabilities approximate fair value due to their short-term nature. The estimated fair value of the convertible 4.5% senior notes (the “Convertible Notes”) approximates the gross carrying value of $2.1 million as of June 30, 2019. The estimated fair value and gross carrying amount was $2.8 million and $2.1 million, respectively, as of December 31, 2018. The fair value of the Convertible Notes is influenced by interest rates, the Company’s stock price and stock price volatility and is determined by prices for the Convertible Notes observed in a market which is a Level 2 input for fair value purposes due to the low frequency of trades. There have been no trades since January 2018, so the fair value as of June 30, 2019 uses Level 3 inputs.

Unbilled Revenue/Reimbursement

Unbilled revenue/reimbursement substantially represents research funding earned based on actual resources utilized and external expenses incurred under certain of the Company’s collaboration agreements.

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Clinical Trial Accruals

Clinical trial expenses are a significant component of research and development expenses, and the Company outsources a significant portion of these costs to third parties. Third party clinical trial expenses include investigator fees, site costs (patient costs), clinical research organization costs, and costs for central laboratory testing and data management. The accrual for site and patient costs includes inputs such as estimates of patient enrollment, patient cycles incurred, clinical site activations, and other pass-through costs. These inputs are required to be estimated due to a lag in receiving the actual clinical information from third parties. Payments for these activities are based on the terms of the individual arrangements, which may differ from the pattern of costs incurred, and are reflected on the consolidated balance sheets as prepaid asset or accrued clinical trial cost. These third party agreements are generally cancelable, and related costs are recorded as research and development expenses as incurred. Non-refundable advance clinical payments for goods or services that will be used or rendered for future R&D activities are recorded as a prepaid asset and recognized as expense as the related goods are delivered or the related services are performed. The Company also records accruals for estimated ongoing clinical research and development costs. When evaluating the adequacy of the accrued liabilities, the Company analyzes progress of the studies, including the phase or completion of events, invoices received, and contracted costs. Significant judgments and estimates may be made in determining the accrued balances at the end of any reporting period. Actual results could differ from the estimates made by the Company. The historical clinical accrual estimates made by the Company have not been materially different from the actual costs.

Leases

Effective January 1, 2019, the Company adopted ASU 2016-2, Leases (Topic 842), the details of which are further discussed in Note H. The Company determines if an arrangement is a lease at inception. Operating leases include right-of-use (“ROU”) assets and operating lease liabilities (current and non-current), which are recorded in the Company’s consolidated balance sheets. Single payment capital leases for equipment that are considered finance leases are included in property and equipment in the Company’s consolidated balance sheets. As these single payment obligations have all been made, there is no related liability recorded.

ROU assets represent the Company’s right to use an underlying asset for the lease term and lease liabilities represent the Company’s obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. The Company uses the implicit rate when readily determinable. As a number of the Company’s leases do not provide an implicit rate, the Company uses an incremental borrowing rate applicable to the Company based on the information available at the commencement date in determining the present value of lease payments. As the Company has no existing or proposed collateralized borrowing arrangements, to determine a reasonable incremental borrowing rate, the Company considers collateral assumptions, the lease term, the Company’s current credit risk profile and rates for existing borrowing arrangements for comparable peer companies. The operating lease ROU assets are netted against any lease incentive and straight-line lease liabilities that have been recorded. The Company accounts for the lease and fixed non-lease components as a single lease component. The Company’s lease terms may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. Lease expense for operating lease payments is recognized on a straight-line basis over the lease term.

Computation of Net Loss per Common Share

Basic and diluted net loss per share is calculated based upon the weighted average number of common shares outstanding during the period. During periods of income, participating securities are allocated a proportional share of income determined by dividing total weighted average participating securities by the sum of the total weighted average common shares and participating securities (the “two-class method”). Shares of the Company’s restricted stock participate in any dividends that may be declared by the Company and are therefore considered to be participating securities. Participating securities have the effect of diluting both basic and diluted earnings per share during periods of income. During periods of loss, no loss is allocated to participating securities since they have no contractual obligation to share in the losses of the Company. Diluted (loss) income per share is computed after giving consideration to the dilutive effect of stock options, convertible notes and restricted stock that are outstanding during the period, except where such non-participating securities would be anti-dilutive.

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The Company’s common stock equivalents, as calculated in accordance with the treasury-stock method for the options and unvested restricted stock and the if-converted method for the Convertible Notes, are shown in the following table (in thousands):


	Three Months Ended		Six Months Ended
	June 30,		June 30,
	2019	2018	2019	2018
Options outstanding to purchase common stock, shares issuable under the employee stock purchase plan, and unvested restricted stock/units at end of period	20,223	17,776	20,223	17,776
Common stock equivalents under treasury stock method for options, shares issuable under the employee stock purchase plan, and unvested restricted stock	432	3,451	1,005	3,484
Shares issuable upon conversion of convertible notes at end of period	501	501	501	501
Common stock equivalents under if-converted method for convertible notes	501	501	501	501

The Company’s common stock equivalents have not been included in the net loss per share calculation because their effect is anti-dilutive due to the Company’s net loss position.

Stock-Based Compensation

As of June 30, 2019, the Company is authorized to grant future awards under an employee share-based compensation plan, which is the ImmunoGen, Inc. 2018 Employee, Director and Consultant Equity Incentive Plan, or the 2018 Plan. The 2018 Plan provides for the issuance of stock grants, the grant of options and the grant of stock-based Awards for up to 7,500,000 shares of the Company’s common stock, as well as up to 19,500,000 shares of common stock, which represent awards granted under the two previous stock option plans, the ImmunoGen, Inc. 2006 or 2016 Employee, Director and Consultant Equity Incentive Plans, that forfeit, expire, or cancel without delivery of shares of common stock or which result in the forfeiture of shares of common stock back to the Company on or subsequent to June 20, 2018. Option awards are granted with an exercise price equal to the market price of the Company’s stock at the date of grant. Options vest at various periods of up to four years and may be exercised within ten years of the date of grant.

The stock-based awards are accounted for under ASC Topic 718, “Compensation-Stock Compensation.” Pursuant to Topic 718, the estimated grant date fair value of awards is charged to the statement of operations and comprehensive loss over the requisite service period, which is the vesting period. Such amounts have been reduced by an estimate of forfeitures of all unvested awards. The fair value of each stock option is estimated on the date of grant using the Black-Scholes option-pricing model with the weighted average assumptions noted in the following table. As the Company has not paid dividends since inception, nor does it expect to pay any dividends for the foreseeable future, the expected dividend yield assumption is zero. Expected volatility is based exclusively on historical volatility of the Company’s stock. The expected term of stock options granted is based exclusively on historical data and represents the period of time that stock options granted are expected to be outstanding. The expected term is calculated for and applied to one group of stock options as the Company does not expect substantially different exercise or post-vesting termination behavior among its option recipients. The risk-free rate of the stock options is based on the U.S. Treasury rate in effect at the time of grant for the expected term of the stock options.


	Three Months Ended June 30,		Six Months Ended June 30,
	2019	2018	2019	2018
Dividend	None	None	None	None
Volatility	80.3%	71.6%	73.8%	70.9%
Risk-free interest rate	2.04%	2.84%	2.46%	2.71%
Expected life (years)	6.0	6.0	6.0	6.0

Using the Black-Scholes option-pricing model, the weighted average grant date fair values of options granted during the three months ended June 30, 2019 and 2018 were $1.63 and $6.82 per share, respectively, and $3.39 and $6.80 for options granted during the six months ended June 30, 2019 and 2018, respectively.

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A summary of option activity under the Company’s equity plans as of June 30, 2019, and changes during the six month period then ended is presented below (in thousands, except weighted-average data):


		Weighted-
	Number	Average
	of Stock	Exercise
	Options	Price
Outstanding at December 31, 2018	15,564	$	10.20
Granted	5,036		5.13
Exercised	(56)		2.58
Forfeited/Canceled	(2,230)		11.85
Outstanding at June 30, 2019	18,314	$	8.63

Included in the outstanding options in the table above are approximately 3.7 million stock options that are expected to forfeit in the second half of 2019 in connection with the workforce reduction related to the restructuring event in the current period, the details of which are discussed further in Note G. Accordingly, the Company recorded an approximate $2.8 million credit to stock compensation expense in the current period as a result of the change in the forfeiture estimate.

In 2018, the Company granted 295,200 performance stock options to certain employees that will vest in two equal installments upon the achievement of specified performance goals within the next five years. The Company determined it is not currently probable that these performance goals will be achieved, and, therefore, no expense has been recorded to date. The fair value of the performance-based options that could be expensed in future periods, net of estimated forfeitures (inclusive of the impact of the recent restructuring event), is $762,000.

A summary of restricted stock and restricted stock unit activity under the Company’s equity plans as of June 30, 2019 and changes during the six-month period ended June 30, 2019 is presented below (in thousands):


	Number of	Weighted-
	Restricted	Average Grant
	Stock Shares	Date Fair Value
Unvested at December 31, 2018	1,816	$	2.87
Awarded	631		2.55
Vested	(504)		2.64
Forfeited	(34)		2.64
Unvested at June 30, 2019	1,909	$	2.83

In August 2016, February 2017, June 2017, and April 2019, the Company granted 117,800, 529,830, 239,000 and 106,000 shares of performance-based restricted common stock with grant date fair values of $3.15, $2.47, $4.71 and $2.82, respectively, to certain employees of the Company, which are reflected in the table above. Of these awarded shares, 71,380 have subsequently been forfeited. These restrictions will lapse in three equal installments upon the achievement of specified performance goals by August 12, 2021. The Company determined it is not currently probable that these performance goals will be achieved, and, therefore, no expense has been recorded to date. The fair value of the performance-based shares that could be expensed in future periods, net of estimated forfeitures (inclusive of the impact of the recent restructuring event), is $1.6 million.

During the six months ended June 30, 2019, holders of options issued under the Company’s equity plans exercised their rights to acquire an aggregate of approximately 56,000 shares of common stock at prices ranging from $1.84 to $3.05 per share. The total proceeds to the Company from these option exercises were $144,000.

In June 2018, the Company's Board of Directors, with shareholder approval, adopted the Employee Stock Purchase Plan, or ESPP. An aggregate of 2,000,000 shares of common stock have been reserved for issuance under the ESPP. On June 30, 2019, approximately 323,000 shares were issued to participating employees at a fair value of approximately $1.63 per share. The fair value of each ESPP award is estimated on the first day of the offering period using the Black-Scholes option-pricing model. The expected volatility used in the fair value calculation was 67.3%, the expected life was .5 years, the expected dividend yield was zero, and the risk-free rate was 2.51%. The Company recognizes share-based compensation expense equal to the fair value of the ESPP awards on a straight-line basis over the offering period.

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Stock compensation expense related to stock options and restricted stock awards granted under the stock plans was $2.1 million and $7.1 million during the three and six months ended June 30, 2019, respectively, compared to stock compensation expense of $4.0 million and $7.7 million for the three and six months ended June 30, 2018, respectively. The decrease in expense is primarily due to the impact of a change in the forfeiture estimate recorded in the current period as discussed above. Stock compensation expense related to the ESPP was $292,000 for the six months ended June 30, 2019. As of June 30, 2019, the estimated fair value of unvested employee awards, exclusive of performance awards, was $17.9 million, net of estimated forfeitures. The weighted-average remaining vesting period for these awards is approximately two years. Also included in stock and deferred stock unit compensation expense in the consolidated statements of cash flows for the six months ended June 30, 2019 and 2018, is expense recorded for directors’ deferred share units, the details of which are discussed in Note F.

Segment Information

During the six months ended June 30, 2019, the Company continued to operate in one operating segment, which is the business of discovery of monoclonal antibody-based anticancer therapeutics.

The percentages of revenues recognized from significant customers of the Company in the three and six months ended June 30, 2019 and 2018 are included in the following table:


	Three Months Ended		Six Months Ended
	June 30,		June 30,
Collaborative Partner:	2019	2018	2019	2018
Roche	99%	78%	99%	50%
Takeda	-	1%	-	39%
Novartis	-	11%	-	4%

There were no other customers of the Company with significant revenues in the three or six months ended June 30, 2019 and 2018.

Recently Adopted Accounting Pronouncements

In February 2016, the FASB issued ASU 2016-2, Leases (Topic 842) in order to increase transparency and comparability among organizations by requiring the recognition of ROU assets and lease liabilities on the balance sheet. Most prominent among the changes in the standard is the recognition of ROU assets and lease liabilities by lessees for those leases classified as operating leases. Under the standard, disclosures are required to meet the objective of enabling users of financial statements to assess the amount, timing, and uncertainty of cash flows arising from leases.

In accordance with the transition method provided by ASC Update No. 2018-11, Leases (Topic 842): Targeted Improvements, the Company adopted and initially applied the new leasing rules on January 1, 2019, rather than at the earliest comparative period presented in the financial statements. Prior periods presented are in accordance with the previous lease guidance (ASC 840). See Note H for further discussion and impact of adoption.

The Company elected several of the available practical expedients, which are also outlined in Note H. The standard had a material impact to the Company’s consolidated balance sheets, but did not have an impact to the consolidated statement of operations. The most significant impact was the recognition of ROU assets and lease liabilities for operating leases, while the accounting for finance leases, which consist entirely of single payment obligations made for equipment, remained substantially unchanged.

In June 2018, the FASB issued ASU No. 2018-07, Compensation — Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting, which expands the scope of Topic 718 to include all share-based payment transactions for acquiring goods and services from nonemployees. ASU 2018-07 specifies that Topic 718 applies to all share-based payment transactions in which the grantor acquires goods and services to be used or consumed in its own operations by issuing share-based payment awards. ASU 2018-07 also clarifies that Topic 718 does not apply to share-based payments used to effectively provide (1) financing to the issuer or (2) awards granted in conjunction with selling goods or services to customers as part of a contract accounted for under ASC 606. The Company adopted the standard on January 1, 2019, and it did not have a material effect on the Company’s consolidated financial statements.

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Recently Issued Accounting Pronouncements, not yet Adopted

In November 2018, the FASB issued ASU 2018-18, Collaborative Arrangements (Topic 808): Clarifying the Interaction between Topic 808 and Topic 606, which clarifies that certain transactions between participants in a collaborative arrangement should be accounted for under ASC 606 when the counterparty is a customer. In addition, ASU 2018-18 adds unit-of-account guidance to ASC Topic 808, Collaborative Arrangements, in order to align this guidance with ASC 606 and also precludes an entity from presenting consideration from a transaction in a collaborative arrangement as revenue from contracts with customers if the counterparty is not a customer for that transaction. This guidance will be effective for annual reporting periods beginning after December 15, 2019, including interim periods within those annual reporting periods, and early adoption is permitted. The Company is currently evaluating the potential impact that ASU 2018-18 may have on the consolidated financial statements.

In June 2016, the FASB issued ASU No. 2016-13, Measurement of Credit Losses on Financial Instruments, to require financial assets carried at amortized cost to be presented at the net amount expected to be collected based on historical experience, current conditions, and forecasts. The ASU is effective for interim and annual periods beginning after December 15, 2019, with early adoption permitted. Adoption of the ASU is on a modified retrospective basis. The Company does not expect this guidance to have a material impact on its financial statements.

No other recently issued or effective ASUs had, or are expected to have, a material effect on the Company's results of operations, financial condition, or liquidity.

C.Agreements

Significant Collaborative Agreements

Roche

In May 2000, the Company granted Genentech, now a member of the Roche Group, an exclusive license to use the Company’s maytansinoid ADC technology. Pursuant to this agreement, Roche developed and received marketing approval for its HER2-targeting ADC compound, Kadcyla, in the U.S., Europe, Japan and numerous other countries. The Company receives royalty reports and payments related to sales of Kadcyla from Roche one quarter in arrears. In accordance with the Company’s revenue recognition policy, $18.9 million and $14.4 million of non-cash royalties on net sales of Kadcyla were recorded and included in non-cash royalty revenue for the six months ended June 30, 2019 and 2018. Kadcyla sales occurring after January 1, 2015 were covered by a royalty purchase agreement whereby the associated cash, except for a residual tail, was remitted to Immunity Royalty Holdings, L.P, or IRH. In January 2019, the Company sold its residual tail to OMERS, the defined benefit pension plan for municipal employees in the Province of Ontario, Canada, for a net payment of $65.2 million, as discussed further in Note E. Simultaneously, OMERS purchased IRH’s right to the royalties the Company previously sold as described above, therefore obtaining the rights to 100% of the royalties received from that date on.

On May 3, 2019, Roche notified the Company that the U.S. Food and Drug Administration approved Kadcyla for adjuvant (after surgery) treatment of people with HER2-positive early breast cancer who have residual invasive disease after neoadjuvant (before surgery) taxane and Herceptin® (trastuzumab)-based treatment, resulting in a $5 million regulatory milestone payment to the Company for a first extended indication, which is included in license and milestone fees for the three and six months ended June 30, 2019. The next potential milestone the Company will be entitled to receive will be a $5 million regulatory milestone for marketing approval of Kadcyla for a second extended indication as defined in the license.

Novartis

The Company granted Novartis exclusive development and commercialization licenses to the Company’s maytansinoid and IGN ADC technology for use with antibodies to six specified targets under a now-expired right-to-test agreement established in 2010. The Company received a $45 million upfront payment in connection with the execution of the right-to-test agreement in 2010, and for each development and commercialization license taken for a specific target, the Company received an exercise fee of $1 million and is entitled to receive up to a total of $199.5 million in milestone payments, plus royalties on the commercial sales of any resulting products. In May 2018, Novartis terminated one of its six development and commercialization licenses. As a result, the Company recorded the remaining $978,000 balance of the upfront payment that had been allocated to future performance obligations under this license as revenue, which is included in license and milestone fees for the three and six months ended June 30, 2018.

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Takeda

In March 2015, the Company entered into a three-year right-to-test agreement with Takeda through its wholly owned subsidiary, Millennium Pharmaceuticals, Inc. The agreement provided Takeda with the right to (a) take exclusive options, with certain restrictions, to individual targets selected by Takeda for specified option periods, (b) test the Company’s ADC technology with Takeda’s antibodies directed to the targets optioned under a right-to-test, or research, license, and (c) take exclusive licenses to use the Company’s ADC technology to develop and commercialize products to targets optioned for up to two individual targets on terms specified in the right-to-test agreement. The first license was granted to Takeda in December 2015. In March 2018, the right-to-test agreement expired without Takeda exercising its option to a second license or extending or expanding the agreement as it had the right to do for a third license. Accordingly, the remaining $10.9 million of revenue that had been deferred for such performance obligations was recognized as revenue and is included in license and milestone fees for the six months ended June 30, 2018. In May 2018, Takeda enrolled its first patient in a Phase I clinical trial, triggering a $5 million milestone payment to the Company. Due to the likelihood of this milestone being attained, this milestone was recognized as a contract asset as part of the cumulative adjustment to transition to ASC 606. It had been previously allocated to the delivered license and the right to technological improvements. The next potential milestone payment the Company will be entitled to receive will be a $10 million development milestone payment with the initiation of a Phase II clinical trial. Takeda is responsible for the manufacturing, product development, and marketing of any products resulting from the remaining license.

Debiopharm

In May 2017, Debiopharm acquired the Company’s IMGN529 program, a clinical-stage anti-CD37 ADC for the treatment of patients with B-cell malignancies. Under the terms of the Exclusive License and Asset Purchase agreement, the Company received a $25 million upfront payment for specified assets related to IMGN529 and a paid-up license to the Company’s ADC technology. Upon substantial completion of the transfer of the Company’s technologies related to the program (technology transfer) in the fourth quarter of 2017, the Company achieved a $5 million milestone, $4.5 million of which was received in December 2017 and the balance in January 2018 upon delivery of the final materials related to the transfer. Accordingly, $500,000 was recorded as license and milestone fee revenue in the six months ended June 30, 2018. In addition, the Company is eligible for a second success-based milestone payment of $25 million upon IMGN529 entering a Phase 3 clinical trial. The milestone payment will be significantly reduced if a Phase 3 trial using the Company’s technology but not the IMGN529 antibody commences prior to IMGN529 entering a Phase 3 trial. The Company does not believe this scenario is likely to occur.

For additional information related to these agreements, as well as the Company’s other significant collaborative agreements, please read Note C, Agreements, to the consolidated financial statements included within the Company’s 2018 Annual Report on Form 10-K.

D.Convertible 4.5% Senior Notes

In 2016, the Company issued Convertible Notes with an aggregate principal amount of $100 million. The Company received net proceeds of $96.6 million from the sale of the Convertible Notes, after deducting fees and expenses of $3.4 million.

During the second half of calendar 2017, the Company entered into privately negotiated exchange agreements with a number of holders of the Company’s outstanding Convertible Notes, pursuant to which the Company agreed to exchange, in a private placement, $97.9 million in aggregate principal amount of Convertible Notes held by the holders for 26,160,187 newly issued shares of common stock, equivalent to the number of shares based on the original conversion terms, plus an additional number of newly issued shares of common stock determined based on the volume-weighted average trading price of the common stock over certain trading days. As a result of the agreements, 2,784,870 additional sha