Wang Stephen Hui

SEC source: 0002088597-25-000003 · form4-12222025_101213.xml · derivative · entry 1

Wang Stephen Hui · CIK 0002088597 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,200

Underlying: Common Stock · 31,200 shares

Expires 2035-12-18

F1 · security: The award was granted as an Initial Grant as contemplated by the non-employee director compensation policy adopted by the Issuer's board of directors on December 18, 2025.

F2 · derivative.exercise_date: This option vests over a three-year period, with 1/36th of the shares subject to the option vesting in 36 substantially equal monthly installments, subject to the Reporting Person's Continuous Service (as defined in the Issuer's 2025 Equity Incentive Plan) through each such date.

SEC source: 0002088597-25-000002 · form4-10102025_081012.xml · nonDerivative · entry 3

Wang Stephen Hui · CIK 0002088597 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Magic Hat L.P.

Disclosed balance after: 12,535

F1 · kind: Under the terms of the Agreement and Plan of Merger, dated as of December 23, 2024, by and among, the Issuer, Insight Merger Sub I, a wholly-owned subsidiary of the Issuer ("Merger Sub I"), Insight Merger Sub II, a wholly-owned subsidiary of the Issuer ("Merger Sub II") and Inmagene Biopharmaceuticals ("Legacy Inmagene") (the "Merger Agreement"), on July 25, 2025, Merger Sub I merged with and into Legacy Inmagene (the "First Merger"), with Legacy Inmagene surviving the First Merger as a wholly-owned subsidiary of the Issuer, and immediately after the First Merger, Legacy Inmagene merged with and into Merger Sub II, with Merger Sub II surviving the First Merger as a wholly-owned subsidiary of the Issuer (the "Second Merger" and together with the First Merger, the "Merger"). (continued in the next footnote).

F2 · kind: Upon the closing of the Merger, each Legacy Inmagene ordinary and preferred share was converted into the right to receive 0.003051 of shares of the Issuer common stock. Subsequent to the Merger, the name of the Issuer was changed from Ikena Oncology, Inc. ("Ikena") to ImageneBio, Inc.

F6 · kind: Consists of 8,513 shares of the Issuer's Common Stock received in exchange for 2,790,408 Series C-1 Preferred Shares of Legacy Inmagene and 4,022 shares of the Issuer's Common Stock received in exchange for 1,318,468 Series C-2 Preferred Shares of Legacy Inmagene pursuant to the Merger Agreement.

F6 · shares: Consists of 8,513 shares of the Issuer's Common Stock received in exchange for 2,790,408 Series C-1 Preferred Shares of Legacy Inmagene and 4,022 shares of the Issuer's Common Stock received in exchange for 1,318,468 Series C-2 Preferred Shares of Legacy Inmagene pursuant to the Merger Agreement.

F1 · price: Under the terms of the Agreement and Plan of Merger, dated as of December 23, 2024, by and among, the Issuer, Insight Merger Sub I, a wholly-owned subsidiary of the Issuer ("Merger Sub I"), Insight Merger Sub II, a wholly-owned subsidiary of the Issuer ("Merger Sub II") and Inmagene Biopharmaceuticals ("Legacy Inmagene") (the "Merger Agreement"), on July 25, 2025, Merger Sub I merged with and into Legacy Inmagene (the "First Merger"), with Legacy Inmagene surviving the First Merger as a wholly-owned subsidiary of the Issuer, and immediately after the First Merger, Legacy Inmagene merged with and into Merger Sub II, with Merger Sub II surviving the First Merger as a wholly-owned subsidiary of the Issuer (the "Second Merger" and together with the First Merger, the "Merger"). (continued in the next footnote).

F2 · price: Upon the closing of the Merger, each Legacy Inmagene ordinary and preferred share was converted into the right to receive 0.003051 of shares of the Issuer common stock. Subsequent to the Merger, the name of the Issuer was changed from Ikena Oncology, Inc. ("Ikena") to ImageneBio, Inc.

F6 · price: Consists of 8,513 shares of the Issuer's Common Stock received in exchange for 2,790,408 Series C-1 Preferred Shares of Legacy Inmagene and 4,022 shares of the Issuer's Common Stock received in exchange for 1,318,468 Series C-2 Preferred Shares of Legacy Inmagene pursuant to the Merger Agreement.

F4 · ownership.nature: HLC Healthcare HK Limited is controlled by HLC Partners III L.P., whose general partner is HLC GP III Company Limited ("HLC GP"). HLC GP is wholly owned by Mr. Wang. HLC GP also acts as the general partner of Galaxy Alpha L.P. and Magic Hat L.P.. The voting and investment power of shares held by HLC Healthcare HK Limited, Galaxy Alpha L.P. and Magic Hat L.P. is exercised by Mr. Wang. Accordingly, Mr. Wang has an indirect pecuniary interest over the shares of the Issuer held by HLC Healthcare HK Limited. Mr. Wang disclaims beneficial ownership of the shares held by HLC Healthcare HK Limited, except to the extent of his pecuniary interest therein, if any.

SEC source: 0002088597-25-000002 · form4-10102025_081012.xml · nonDerivative · entry 2

Wang Stephen Hui · CIK 0002088597 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Galaxy Alpha L.P.

Disclosed balance after: 50,144

F1 · kind: Under the terms of the Agreement and Plan of Merger, dated as of December 23, 2024, by and among, the Issuer, Insight Merger Sub I, a wholly-owned subsidiary of the Issuer ("Merger Sub I"), Insight Merger Sub II, a wholly-owned subsidiary of the Issuer ("Merger Sub II") and Inmagene Biopharmaceuticals ("Legacy Inmagene") (the "Merger Agreement"), on July 25, 2025, Merger Sub I merged with and into Legacy Inmagene (the "First Merger"), with Legacy Inmagene surviving the First Merger as a wholly-owned subsidiary of the Issuer, and immediately after the First Merger, Legacy Inmagene merged with and into Merger Sub II, with Merger Sub II surviving the First Merger as a wholly-owned subsidiary of the Issuer (the "Second Merger" and together with the First Merger, the "Merger"). (continued in the next footnote).

F2 · kind: Upon the closing of the Merger, each Legacy Inmagene ordinary and preferred share was converted into the right to receive 0.003051 of shares of the Issuer common stock. Subsequent to the Merger, the name of the Issuer was changed from Ikena Oncology, Inc. ("Ikena") to ImageneBio, Inc.

F5 · kind: Consists of 34,054 shares of the Issuer's Common Stock received in exchange for 11,161,633 Series C-1 Preferred Shares of Legacy Inmagene and 16,090 shares of the Issuer's Common Stock received in exchange for 5,273,871 Series C-2 Preferred Shares of Legacy Inmagene pursuant to the Merger Agreement.

F5 · shares: Consists of 34,054 shares of the Issuer's Common Stock received in exchange for 11,161,633 Series C-1 Preferred Shares of Legacy Inmagene and 16,090 shares of the Issuer's Common Stock received in exchange for 5,273,871 Series C-2 Preferred Shares of Legacy Inmagene pursuant to the Merger Agreement.

F1 · price: Under the terms of the Agreement and Plan of Merger, dated as of December 23, 2024, by and among, the Issuer, Insight Merger Sub I, a wholly-owned subsidiary of the Issuer ("Merger Sub I"), Insight Merger Sub II, a wholly-owned subsidiary of the Issuer ("Merger Sub II") and Inmagene Biopharmaceuticals ("Legacy Inmagene") (the "Merger Agreement"), on July 25, 2025, Merger Sub I merged with and into Legacy Inmagene (the "First Merger"), with Legacy Inmagene surviving the First Merger as a wholly-owned subsidiary of the Issuer, and immediately after the First Merger, Legacy Inmagene merged with and into Merger Sub II, with Merger Sub II surviving the First Merger as a wholly-owned subsidiary of the Issuer (the "Second Merger" and together with the First Merger, the "Merger"). (continued in the next footnote).

F2 · price: Upon the closing of the Merger, each Legacy Inmagene ordinary and preferred share was converted into the right to receive 0.003051 of shares of the Issuer common stock. Subsequent to the Merger, the name of the Issuer was changed from Ikena Oncology, Inc. ("Ikena") to ImageneBio, Inc.

F5 · price: Consists of 34,054 shares of the Issuer's Common Stock received in exchange for 11,161,633 Series C-1 Preferred Shares of Legacy Inmagene and 16,090 shares of the Issuer's Common Stock received in exchange for 5,273,871 Series C-2 Preferred Shares of Legacy Inmagene pursuant to the Merger Agreement.

F4 · ownership.nature: HLC Healthcare HK Limited is controlled by HLC Partners III L.P., whose general partner is HLC GP III Company Limited ("HLC GP"). HLC GP is wholly owned by Mr. Wang. HLC GP also acts as the general partner of Galaxy Alpha L.P. and Magic Hat L.P.. The voting and investment power of shares held by HLC Healthcare HK Limited, Galaxy Alpha L.P. and Magic Hat L.P. is exercised by Mr. Wang. Accordingly, Mr. Wang has an indirect pecuniary interest over the shares of the Issuer held by HLC Healthcare HK Limited. Mr. Wang disclaims beneficial ownership of the shares held by HLC Healthcare HK Limited, except to the extent of his pecuniary interest therein, if any.

SEC source: 0002088597-25-000002 · form4-10102025_081012.xml · nonDerivative · entry 1

Wang Stephen Hui · CIK 0002088597 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · HLC Healthcare HK Limited

Disclosed balance after: 188,042

F1 · kind: Under the terms of the Agreement and Plan of Merger, dated as of December 23, 2024, by and among, the Issuer, Insight Merger Sub I, a wholly-owned subsidiary of the Issuer ("Merger Sub I"), Insight Merger Sub II, a wholly-owned subsidiary of the Issuer ("Merger Sub II") and Inmagene Biopharmaceuticals ("Legacy Inmagene") (the "Merger Agreement"), on July 25, 2025, Merger Sub I merged with and into Legacy Inmagene (the "First Merger"), with Legacy Inmagene surviving the First Merger as a wholly-owned subsidiary of the Issuer, and immediately after the First Merger, Legacy Inmagene merged with and into Merger Sub II, with Merger Sub II surviving the First Merger as a wholly-owned subsidiary of the Issuer (the "Second Merger" and together with the First Merger, the "Merger"). (continued in the next footnote).

F2 · kind: Upon the closing of the Merger, each Legacy Inmagene ordinary and preferred share was converted into the right to receive 0.003051 of shares of the Issuer common stock. Subsequent to the Merger, the name of the Issuer was changed from Ikena Oncology, Inc. ("Ikena") to ImageneBio, Inc.

F3 · kind: Consists of 127,703 shares of the Issuer's Common Stock received in exchange for 41,856,123 Series C-1 Preferred Shares of Legacy Inmagene and 60,339 shares of the Issuer's Common Stock received in exchange for 19,777,018 Series C-2 Preferred Shares of Legacy Inmagene pursuant to the Merger Agreement.

F3 · shares: Consists of 127,703 shares of the Issuer's Common Stock received in exchange for 41,856,123 Series C-1 Preferred Shares of Legacy Inmagene and 60,339 shares of the Issuer's Common Stock received in exchange for 19,777,018 Series C-2 Preferred Shares of Legacy Inmagene pursuant to the Merger Agreement.

F1 · price: Under the terms of the Agreement and Plan of Merger, dated as of December 23, 2024, by and among, the Issuer, Insight Merger Sub I, a wholly-owned subsidiary of the Issuer ("Merger Sub I"), Insight Merger Sub II, a wholly-owned subsidiary of the Issuer ("Merger Sub II") and Inmagene Biopharmaceuticals ("Legacy Inmagene") (the "Merger Agreement"), on July 25, 2025, Merger Sub I merged with and into Legacy Inmagene (the "First Merger"), with Legacy Inmagene surviving the First Merger as a wholly-owned subsidiary of the Issuer, and immediately after the First Merger, Legacy Inmagene merged with and into Merger Sub II, with Merger Sub II surviving the First Merger as a wholly-owned subsidiary of the Issuer (the "Second Merger" and together with the First Merger, the "Merger"). (continued in the next footnote).

F2 · price: Upon the closing of the Merger, each Legacy Inmagene ordinary and preferred share was converted into the right to receive 0.003051 of shares of the Issuer common stock. Subsequent to the Merger, the name of the Issuer was changed from Ikena Oncology, Inc. ("Ikena") to ImageneBio, Inc.

F3 · price: Consists of 127,703 shares of the Issuer's Common Stock received in exchange for 41,856,123 Series C-1 Preferred Shares of Legacy Inmagene and 60,339 shares of the Issuer's Common Stock received in exchange for 19,777,018 Series C-2 Preferred Shares of Legacy Inmagene pursuant to the Merger Agreement.

F4 · ownership.nature: HLC Healthcare HK Limited is controlled by HLC Partners III L.P., whose general partner is HLC GP III Company Limited ("HLC GP"). HLC GP is wholly owned by Mr. Wang. HLC GP also acts as the general partner of Galaxy Alpha L.P. and Magic Hat L.P.. The voting and investment power of shares held by HLC Healthcare HK Limited, Galaxy Alpha L.P. and Magic Hat L.P. is exercised by Mr. Wang. Accordingly, Mr. Wang has an indirect pecuniary interest over the shares of the Issuer held by HLC Healthcare HK Limited. Mr. Wang disclaims beneficial ownership of the shares held by HLC Healthcare HK Limited, except to the extent of his pecuniary interest therein, if any.