9. Commitments and Contingencies

Collaborative Agreements, Royalties and Milestone Payments

The Company has committed to make potential future milestone payments and legal fees to third parties as part of licensing and development programs. Payments under these agreements become due and payable only upon the achievement of certain developmental, regulatory and commercial milestones by the Company’s licensees. Because it is uncertain if and when these milestones will be achieved, such contingencies, aggregating up to $6.3 million (assuming one product per contract meets all milestone events) have not been recorded on the accompanying condensed consolidated balance sheets. The Company is unable to determine precisely when and if payment obligations under the agreements will become due as these obligations are based on milestone events, the achievement of which is subject to a significant number of risks and uncertainties.

Contingent Consideration

Pursuant to the Company’s agreements with Bioasis, Aronora, Kuros, Affitech, ObsEva and Aptevo the Company has committed to pay the Bioasis Contingent Consideration, the Aronora Royalty Milestones, the Kuros Sales Milestones, the Affitech Sales Milestones, the ObsEva Sales Milestones, the ObsEva Non-Sales Milestones, the Merck KGaA royalties and the Aptevo Contingent Consideration.

The Company recorded $75,000 for the Bioasis Contingent Consideration that represented the estimated fair value of the potential future payments at the inception of the Bioasis RPA. The Bioasis Contingent Consideration is remeasured at fair value at each reporting period, with changes in fair value recorded in other income (expense), net. As of June 30, 2023, the estimated fair value of the Bioasis Contingent Consideration was reduced to $0.

The Company recorded $1.0 million for the LadRx contingent consideration that represents the estimated fair value of the potential future payments upon the achievement of regulatory milestones related to arimoclomol and aldoxorubicin at the inception of the LadRx Agreements. Such contingent consideration related to regulatory milestones is remeasured at fair value at each reporting period, with changes in fair value recorded in other income (expense), net. As of June 30, 2023, there has been no change in the estimated fair value from the initial value.

In the first quarter of 2023, the Company recorded a contingent liability of $50,000 under ASC 450 for the Aptevo Contingent Consideration at the inception of the Aptevo CPPA. During the six months ended June 30, 2023, the contingent

liability recorded pursuant to the Aptevo CPPA decreased to zero after the Company paid Aptevo $50,000 upon achievement of the related commercial sales milestone.

The liability for future Aronora Royalty Milestones, Kuros Sales Milestones, Affitech Sales Milestones and LadRx sales milestones will be recorded when the amounts, by product, are estimable and probable. The liability for future ObsEva Non-Sales Milestones, ObsEva Sales Milestones and Merck KGaA royalties will be recorded at the time that the corresponding underlying revenue under the Organon License Agreement is estimatable and probable. As of June 30, 2023, none of these Aronora Royalty Milestones, Kuros Sales Milestones, Affitech Sales Milestones, ObsEva Non-Sales Milestones, ObsEva Sales Milestones, or Merck KGaA royalties were assessed to be probable and as such, no liability was recorded on the condensed consolidated balance sheet.