3. Asset Purchase Agreements

Mustang

Agreements with uBriGene (Boston) Biosciences, Inc. (“uBriGene”)

On May 18, 2023, Mustang entered into an Asset Purchase Agreement (the “Original Asset Purchase Agreement”) with uBriGene, pursuant to which Mustang agreed to sell its leasehold interest in its cell processing facility located in Worcester,

Massachusetts (the “Facility”), and associated assets relating to the manufacturing and production of cell and gene therapies at the Facility to uBriGene (the “Transaction”). Mustang and uBriGene subsequently entered into Amendment No. 1 to the Original Asset Purchase Agreement, dated as of June 29, 2023 (“Amendment No. 1”), and Amendment No. 2 to the Original Asset Purchase Agreement, dated as of July 28, 2023 (“Amendment No. 2,” and together with the Original Asset Purchase Agreement and Amendment No. 1, the “Prior Asset Purchase Agreement”).

On July 28, 2023, pursuant to the Prior Asset Purchase Agreement, Mustang completed the sale of all of its assets that primarily relate to the manufacturing and production of cell and gene therapies at the Facility (such operations, the “Transferred Operations” and such assets, the “Transferred Assets”) to uBriGene for upfront consideration of $6 million cash (the “Base Amount”). The Transferred Assets included all of Mustang’s assets, except for Mustang’s lease and related leasehold improvements of the Facility and contracts that are primarily used in the Transferred Operations. Mustang recorded a gain of $1.4 million in connection with the sale of the Transferred Assets and recorded approximately $0.3 million of the base consideration as deferred income, that was to be recognized upon the transfer of the lease.

In connection with the Prior Asset Purchase Agreement, Mustang and uBriGene submitted a voluntary joint notice to the U.S. Committee on Foreign Investment in the United States (“CFIUS”). Following CFIUS’s review and subsequent investigation of the transactions related to the Prior Asset Purchase Agreement, on May 13, 2024, Mustang, together with uBriGene and CFIUS, executed a National Security Agreement (the “NSA”), pursuant to which Mustang and uBriGene agreed to abandon the transactions related to the Prior Asset Purchase Agreement and the agreements entered into in connection therewith. The NSA obligated uBriGene and Mustang to terminate agreements between the two parties, including the Manufacturing Services Agreement, Quality Services Agreement, and Subcontracting CDMO Agreement.  In addition, uBriGene must sell, or otherwise dispose of, the equipment assets purchased within 180 days after the execution of the NSA.

June 2024 Repurchase of Assets

On June 27, 2024 (the “Effective Date”), Mustang entered into an Asset Purchase Agreement (the “Repurchase Agreement”) with uBriGene, pursuant to which Mustang agreed, subject to the terms and conditions set forth therein, to repurchase the Transferred Assets, primarily lab equipment and supplies (collectively, the “Repurchased Assets”). Pursuant to the terms of the Repurchase Agreement, Mustang and uBriGene also terminated existing manufacturing and services agreements.

As consideration for the Repurchase Agreement, Mustang has agreed to pay to uBriGene a total purchase price (the “Purchase Price”) of $1.4 million, consisting of (i) an upfront payment of $0.1 million due within five (5) business days of the Effective Date and a (ii) subsequent amount of $1.3 million due on the date that is twelve (12) months after the closing date (the “Deferred Amount”). In the event that as of the original (or any extended) date on which the Deferred Amount is payable, Mustang has, as of the date of the public reporting of its then-most recent quarterly audited or unaudited financial statements, net assets below $20 million, then Mustang may, upon written notice to uBriGene, elect to delay its payment obligation of the Deferred Amount by an additional six (6) months, with no limit on the number of such extensions available to Mustang. Notwithstanding the foregoing, if Mustang has not paid the Deferred Amount in full as of the date that is twelve (12) months after closing of the Repurchase Agreement, any amounts that remain outstanding will accrue interest at a rate of 5% per annum beginning on the date that is twelve (12) months after closing and until the Deferred Amount is paid in full. Additionally, in connection with the termination of the agreements described above under the Repurchase Agreement, Mustang agreed to forgive a net receivable from uBriGene of approximately $3.3 million, comprised of outstanding receivables of $6.9 million and payables of $3.6 million, resulting in total purchase consideration in the Repurchase Transactions of approximately $4.7 million. The upfront payment of $0.1 million was paid in July 2024, and as of December 31, 2024, the $1.3 million Deferred Amount was recorded in Accrued Expenses - Other (see Note 10).

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Mustang allocated the total purchase consideration of $4.7 million to the Repurchased Assets on a relative fair value basis. Mustang used a third-party to perform a valuation of the repurchased equipment, which resulted in a fair value less costs to sell of approximately $2.2 million. The remaining purchase consideration of $2.5 million was allocated to the supplies repurchased. The supplies repurchased with no alternative future use were recognized as research and development expense in an amount of $2.2 million. Repurchased supplies with an alternative future use of $0.3 million were also recognized in research and development expense, as Mustang does not have plans to resume operations in the facility, and

it intends to dispose of the supplies in a single transaction with the equipment. Mustang concluded that the disposal group, which includes the repurchased equipment assets and associated supplies with an aggregate value of approximately $2.2 million, met the criteria to be classified as held for sale at the date of acquisition. As of December 31, 2024, the disposal group continues to be held for sale at an approximate value of $1.2 million (see Note 5).

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Cyprium

Agreement with Sentynl

On February 24, 2021, Cyprium entered into a development and asset purchase agreement (the “Sentynl APA”) with Sentynl, a U.S.-based specialty pharmaceutical company owned by the Zydus Group. Under the Sentynl APA, Sentynl provided $8.0 million of upfront development funding for Cyprium’s CUTX-101 program, with Cyprium remaining in control of development of such program; upon approval of the NDA for CUTX-101 by the FDA, Cyprium would be obligated to assign the NDA and certain other assets pertaining to the CUTX-101 program to Sentynl, after which point Sentynl would commercialize the drug and owe Cyprium royalties and regulatory and sales milestones.

The Sentynl APA contained an alternative “Approval Deadline Transfer” mechanism pursuant to which, in the event that CUTX-101 NDA approval had not been obtained by September 30, 2023, then Sentynl could elect, during the subsequent 45-day period, to assume control over development of CUTX-101 by effecting a Closing under the Sentynl APA. Cyprium received notice of Sentynl’s election to effect the Approval Deadline Transfer during such 45-day period, and the Closing of such transfer occurred in December 2023. The Approval Deadline Transfer obligated Sentynl to pay Cyprium $4.5 million in connection with the Closing, which was received by Cyprium in December 2023 and recorded as collaboration revenue by Fortress in its consolidated statements of operations for the year ended December 31, 2023. There were no further obligations required by Cyprium in regards to the $4.5 million.

Following such Closing, Sentynl is obligated to use commercially reasonable efforts to develop and commercialize CUTX-101, including the funding of the same. Additionally, Cyprium remains eligible to receive up to $129 million in aggregate development and sales milestones under the Agreement, and royalties on net sales of CUTX-101 as follows: (i) 3% of annual net sales up to $75 million; (ii) 8.75% of annual net sales between $75 million and $100 million; and (iii) 12.5% of annual net sales in excess of $100 million. Cyprium will retain 100% ownership over any FDA priority review voucher that may be issued at NDA approval for CUTX-101.

With respect to the $8.0 million upfront payment from Sentynl received in 2021, the Company recognized revenue over the period in which the development activities occurred using an input method based upon the costs incurred to date in relation to the total estimated costs to complete the development activities. As of the date of the Approval Deadline Transfer, the revenue related to the upfront payment has been fully recognized. For the year ended December 31, 2023, the Company recognized revenue from this arrangement of $0.7 million.

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In December 2024, the NDA for CUTX-101 was accepted by the FDA. The NDA, which has been granted Priority Review, has an assigned Prescription Drug User Fee Act (“PDUFA”) target action date of September 30, 2025. Cyprium received a milestone payment of $1.5 million from Sentynl that was due upon NDA acceptance, which was recorded as collaboration revenue by Fortress in its Consolidated Statements of Operations for the year ended December 31, 2024.

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Urica Therapeutics, Inc. (“Urica”)

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Agreement with Crystalys Therapeutics, Inc (“Crystalys”)

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On July 15, 2024, Urica entered into an asset purchase agreement (the “APA”), royalty agreement (the “Royalty Agreement”), and related agreements (collectively, the “Transaction Documents”) with Crystalys, a Delaware corporation incorporated in 2022 and seeded by life sciences institutional investors. Under the Transaction Documents, Urica sold the rights to its URAT1 inhibitor product candidate (see Note 7) in development for the treatment of gout, dotinurad, and related intellectual property, licenses and agreements to Crystalys. In return, Crystalys issued to Urica shares of its common stock equal to 35% of Crystalys’ outstanding equity. Urica’s equity position cannot be reduced below 15% of Crystalys’ fully-diluted equity capitalization until it raises $150 million in equity securities.  

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The Transaction Documents also grant Urica a secured three percent (3%) royalty on future net sales of dotinurad to be paid by Crystalys, as well as the right to receive $0.6 million cash reimbursement for certain clinical and development costs incurred by Urica related to dotinurad. Urica has the right to appoint one director to the board of directors of Crystalys, as well as an additional board observer. Crystalys is obliged to use commercially reasonable efforts to develop and commercialize dotinurad.

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The APA also gives Urica the right, but not the obligation, to repurchase the sold assets for a repurchase price not to exceed $6.4 million plus accrued interest; in the event that Crystalys has not consummated a qualified financing of at least $120 million before January 8, 2026. Urica recorded a liability for the $0.6 million received, which will be accreted up to the repurchase price over the term of the repurchase option, and will not recognize an asset for its ownership interest received in Crystalys until the expiration of the repurchase option. Accordingly, for the year ended December 31, 2024, Urica recorded accretion of $0.7 million of the repurchase option price, booked to interest expense in the condensed consolidated statement of operations.

Aevitas

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Agreement with 4DMT

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On April 21, 2023, Aevitas entered into an Asset Purchase Agreement (the “4DMT APA”) with 4DMT under which 4DMT acquired Aevitas’ proprietary rights to its short-form human complement factor H (“sCFH”) asset for the treatment of complement-mediated diseases. Under the terms of the 4DMT APA, 4DMT will make cash payments totaling up to $140 million if certain late-stage development, regulatory and sales milestones are met with respect to sCFH. A range of single-digit royalties on net sales are also payable. The aforementioned payments are payable solely to Aevitas, and 4DMT will be responsible for license payment obligations to the licensor of sCFH, University of Pennsylvania. 4DMT is not a related party to the Company and has assumed all ongoing and future development costs. The fair value of the interest in Aevitas retained by the Company of $2.6 million was based on the risk-adjusted present value of the aforementioned potential cash payments (see Note 6).

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In connection with the 4DMT APA, the preferred shares of Aevitas held by the Company converted to Aevitas common shares, at which point the Company no longer maintained voting control of Aevitas. As a result, the Company deconsolidated its holdings in Aevitas. In connection with this transaction, the Company recorded a loss on deconsolidation of Aevitas of $3.4 million during the year ended December 31, 2023 in other expense in the Consolidated Statement of Operations.  

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Avenue

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Agreements with InvaGen

In November 2018, Avenue entered into a Stock Purchase and Merger Agreement (the “Avenue SPMA”) with InvaGen Pharmaceuticals Inc. In November 2021, Avenue delivered InvaGen notice of termination of the Avenue SPMA and, in July 2022, Avenue entered into a Share Repurchase Agreement (the “Avenue SRA”) with InvaGen which closed in October 2022. In connection with the closing of the Avenue SRA, Avenue repurchased all the common shares of Avenue held by InvaGen, and all of the rights retained by InvaGen pursuant to the Stockholders Agreement entered into by and among Avenue, InvaGen and Fortress on November 12, 2018, were terminated. Under the Avenue SRA, Avenue agreed to pay InvaGen seven and a half percent (7.5%) of the proceeds from future financings, up to $4 million. In connection with funds raised in 2024 and 2023 (see Note 13), Avenue made payments totaling $0.7 million and $0.5 million, respectively, to InvaGen.