Daewoong Convertible Notes	3 Months Ended
Mar. 31, 2025
Daewoong Convertible Notes
Daewoong Convertible Notes	Note 3. Daewoong Convertible Notes On March 19, 2024, the Company entered into a subscription agreement with Daewoong (the “Subscription Agreement”) relating to the sale and issuance by the Company of senior secured convertible notes (each, a “2024 Convertible Note” and together, the “2024 Convertible Notes”) in the principal amount of up to $15.0 million, which are convertible into shares of the Company’s common stock, subject to certain conditions and limitations set forth in each Convertible Note. Each Convertible Note contains customary events of default, accrues interest at an annual rate of 15.79% and has a maturity date that is three years from the funding date, unless earlier repurchased, converted or redeemed in accordance with its terms prior to such date. The Company will use the net proceeds from each Convertible Note to support the late-stage clinical development of its lead product candidate ABP-450 and for general working capital purposes. Pursuant to the terms of the Subscription Agreement, on March 24, 2024, the Company issued and sold to Daewoong one Convertible Note in the principal amount of $5.0 million, and on April 12, 2024, the Company issued and sold to Daewoong one Convertible Note in the principal amount of $10.0 million. On March 19, 2024, the Company entered into a Fourth Amendment to the License Agreement (the “License Agreement Amendment”) with Daewoong, which amends that certain License and Supply Agreement, by and between the Company and Daewoong, dated December 20, 2019, as previously amended on July 29, 2022, January 8, 2023 and April 24, 2023 (the “License Agreement”). Pursuant to the terms of the License Agreement Amendment, the License Agreement will terminate if, over any six month period, (a) the Company ceases to commercialize ABP-450 in certain territories specified in the License Agreement and (b) the Company ceases to advance any clinical studies of ABP-450 in such territories. The License Agreement Amendment also provides that, in the event that the License Agreement is terminated for the foregoing reasons, Daewoong will have the right to purchase all Know-How (as defined in the License Agreement) related to ABP-450 for a price of $1.00 (the “Termination Purchase Right”). The Termination Purchase Right will terminate and expire upon Daewoong’s sale of 50% of its common stock, including common stock held by its affiliates and common stock that would be issued upon an Automatic Conversion or Optional Conversion (as defined in the Convertible Notes). Due to certain embedded features within the convertible notes, the Company elected the fair value option to account for its convertible notes, including any paid-in-kind principal and interest, and the embedded features. For more information on fair value of convertible notes, see Note 5 Fair Value Measurements. During the three months ended March 31, 2025 and March 31, 2024, the Company recognized $1.6 million and $0.1 million, respectively, of expense related to the increase in the fair value of the 2024 Daewoong Convertible Notes. As of March 31, 2025 and December 31, 2024, the principal amount outstanding under the 2024 Daewoong Convertible Note was $15.0 million, with an estimated fair value inclusive of accrued interest of $13.3 million and $11.7 million, respectively.

Daewoong Convertible Notes

3 Months Ended

Mar. 31, 2025

Note 3. Daewoong Convertible Notes

On March 19, 2024, the Company entered into a subscription agreement with Daewoong (the “Subscription Agreement”) relating to the sale and issuance by the Company of senior secured convertible notes (each, a “2024 Convertible Note” and together, the “2024 Convertible Notes”) in the principal amount of up to $15.0 million, which are convertible into shares of the Company’s common stock, subject to certain conditions and limitations set forth in each Convertible Note. Each Convertible Note contains customary events of default, accrues interest at an annual rate of 15.79% and has a maturity date that is three years from the funding date, unless earlier repurchased, converted or redeemed in accordance with its terms prior to such date. The Company will use the net proceeds from each Convertible Note to support the late-stage clinical development of its lead product candidate ABP-450 and for general working capital purposes. Pursuant to the terms of the Subscription Agreement, on March 24, 2024, the Company issued and sold to Daewoong one Convertible Note in the principal amount of $5.0 million, and on April 12, 2024, the Company issued and sold to Daewoong one Convertible Note in the principal amount of $10.0 million.

On March 19, 2024, the Company entered into a Fourth Amendment to the License Agreement (the “License Agreement Amendment”) with Daewoong, which amends that certain License and Supply Agreement, by and between the Company and Daewoong, dated December 20, 2019, as previously amended on July 29, 2022, January 8, 2023 and April 24, 2023 (the “License Agreement”). Pursuant to the terms of the License Agreement Amendment, the License Agreement will terminate if, over any six month period, (a) the Company ceases to commercialize ABP-450 in certain territories specified in the License Agreement and (b) the Company ceases to advance any clinical studies of ABP-450 in such territories. The License Agreement Amendment also provides that, in the event that the License Agreement is terminated for the foregoing reasons, Daewoong will have the right to purchase all Know-How (as defined in the License Agreement) related to ABP-450 for a price of $1.00 (the “Termination Purchase Right”). The Termination Purchase Right will terminate and expire upon Daewoong’s sale of 50% of its common stock, including common stock held by its affiliates and common stock that would be issued upon an Automatic Conversion or Optional Conversion (as defined in the Convertible Notes).

Due to certain embedded features within the convertible notes, the Company elected the fair value option to account for its convertible notes, including any paid-in-kind principal and interest, and the embedded features. For more information on fair value of convertible notes, see Note 5 Fair Value Measurements.

During the three months ended March 31, 2025 and March 31, 2024, the Company recognized $1.6 million and $0.1 million, respectively, of expense related to the increase in the fair value of the 2024 Daewoong Convertible Notes. As of March 31, 2025 and December 31, 2024, the principal amount outstanding under the 2024 Daewoong Convertible Note was $15.0 million, with an estimated fair value inclusive of accrued interest of $13.3 million and $11.7 million, respectively.