Data spanning the past 90 days through January 10, 2026 reveals that Arcus Biosciences's three principal insider shareholders consist of TenPercentOwner Sciences, Inc. Gilead (31.42Mn shares), Chief Executive Officer Terry J Rosen (2.16Mn shares), President Juan C. Jaen (1.27Mn shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Sciences, Inc. Gilead | 31,424,760 | 20 Feb, 2025 | |
| Terry J Rosen | Chief Executive Officer | 2,157,409 | 09 Jan, 2026 |
| Juan C. Jaen | President | 1,268,252 | 18 Dec, 2025 |
| Jennifer Jarrett | Chief Operating Officer | 193,024 | 18 Dec, 2025 |
| Kathryn E Falberg | 170,706 | 12 Jun, 2025 | |
| Carolyn C. Tang | General Counsel | 124,734 | 18 Dec, 2025 |
| Dimitry Sa Nuyten | Chief Medical Officer | 87,518 | 17 Dec, 2024 |
| David L. Lacey | 70,952 | 12 Jun, 2025 | |
| Ii Robert C. Goeltz | Chief Financial Officer | 67,924 | 02 Jan, 2026 |
| Richard Markus | Chief Medical Officer | 65,647 | 18 Dec, 2025 |
| Antoni Ribas | 43,650 | 12 Jun, 2025 | |
| Andrew J Perlman | 42,625 | 12 Jun, 2025 | |
| Patrick Machado | 38,600 | 12 Jun, 2025 | |
| Nicole Lambert | 37,300 | 12 Jun, 2025 | |
| Yasunori Kaneko | 33,300 | 12 Jun, 2025 | |
| William Grossman | Chief Medical Officer | 20,723 | 21 Jun, 2021 |
| Alexander Azoy | Chief Accounting Officer | 18,531 | 18 Dec, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 08 Jan, 2026 | Terry J Rosen | Common Stock | D | 35,000 | $0.00 | 2,157,409 | D | G |
| 05 Jan, 2026 | Juan C. Jaen | Common Stock | D | 2,053 | $22.34 | 922,340 | I | S |
| 05 Jan, 2026 | Juan C. Jaen | Common Stock | D | 100 | $23.20 | 922,240 | I | S |
| 05 Jan, 2026 | Juan C. Jaen | Common Stock | D | 29,670 | $21.34 | 924,393 | I | S |
| 31 Dec, 2025 | Ii Robert C. Goeltz | Common Stock | D | 6,552 | $23.38 | 67,924 | D | S |
| 30 Dec, 2025 | Terry J Rosen | Common Stock | D | 2,400 | $0.00 | 2,192,409 | D | G |
| 18 Dec, 2025 | Alexander Azoy | - | - | 18,531 | D | |||
| 18 Dec, 2025 | Alexander Azoy | Common Stock | D | 4,343 | $22.25 | 18,531 | D | S |
| 17 Dec, 2025 | Terry J Rosen | Common Stock | D | 25,744 | $22.16 | 2,194,809 | D | S |
| 17 Dec, 2025 | Juan C. Jaen | - | - | 346,012 | D | |||
| 17 Dec, 2025 | Juan C. Jaen | Common Stock | D | 9,983 | $22.16 | 346,012 | D | S |
| 17 Dec, 2025 | Ii Robert C. Goeltz | Common Stock | D | 5,960 | $22.16 | 74,476 | D | S |
| 17 Dec, 2025 | Jennifer Jarrett | Common Stock | D | 9,983 | $22.16 | 193,024 | D | S |
| 17 Dec, 2025 | Alexander Azoy | Common Stock | D | 2,113 | $22.16 | 22,874 | D | S |
| 17 Dec, 2025 | Carolyn C. Tang | Common Stock | D | 6,810 | $22.16 | 124,734 | D | S |
| 17 Dec, 2025 | Richard Markus | Common Stock | D | 4,494 | $22.16 | 65,647 | D | S |
| 16 Dec, 2025 | Terry J Rosen | Common Stock | D | 28,947 | $21.88 | 2,220,553 | D | S |
| 16 Dec, 2025 | Juan C. Jaen | Common Stock | D | 11,225 | $21.88 | 355,995 | D | S |
| 16 Dec, 2025 | Juan C. Jaen | - | - | 355,995 | D | |||
| 16 Dec, 2025 | Ii Robert C. Goeltz | Common Stock | D | 6,702 | $21.88 | 80,436 | D | S |