21 insiders reported 144 Form 4 transactions for XOMA Royalty Corp (XOMA) over the past 18 months (most recent 2026-05-18). Recent activity: Biotechnology Value Trading Fund OS LP (Insider) Buy 2.3M shares, BVF I GP LLC (Insider) Buy 1.5M shares, BVF PARTNERS L P/IL (Insider) Buy 2.3M shares, BVF GP HOLDINGS LLC (Insider) Buy 2.3M shares, BVF INC/IL (Insider) Buy 2.3M shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-18 | Biotechnology Value Trading Fund OS LP | Insider | Buy | 2.3M | $9.3M |
| 2026-05-18 | BVF I GP LLC | Insider | Buy | 1.5M | $6.1M |
| 2026-05-18 | BVF PARTNERS L P/IL | Insider | Buy | 2.3M | $9.3M |
| 2026-05-18 | BVF GP HOLDINGS LLC | Insider | Buy | 2.3M | $9.3M |
| 2026-05-18 | BVF INC/IL | Insider | Buy | 2.3M | $9.3M |
| 2026-05-18 | BVF II GP LLC | Insider | Buy | 2.3M | $9.3M |
| 2026-05-18 | BVF I GP LLC | Insider | Buy | 2.3M | $9.3M |
| 2026-05-18 | BIOTECHNOLOGY VALUE FUND L P | Insider | Buy | 2.3M | $9.3M |
| 2026-05-18 | BIOTECHNOLOGY VALUE FUND II LP | Insider | Buy | 2.3M | $9.3M |
| 2026-05-18 | LAMPERT MARK N | Insider | Buy | 2.3M | $9.3M |
| 2026-05-18 | BVF GP HOLDINGS LLC | Insider | Buy | 1.5M | $6.1M |
| 2026-05-18 | BVF Partners OS Ltd. | Insider | Buy | 1.5M | $6.1M |
| 2026-05-18 | BIOTECHNOLOGY VALUE FUND L P | Insider | Buy | 1.5M | $6.1M |
| 2026-05-18 | LAMPERT MARK N | Insider | Buy | 1.5M | $6.1M |
| 2026-05-18 | BVF PARTNERS L P/IL | Insider | Buy | 1.5M | $6.1M |
| 2026-05-18 | BVF II GP LLC | Insider | Buy | 1.5M | $6.1M |
| 2026-05-18 | BIOTECHNOLOGY VALUE FUND II LP | Insider | Buy | 1.5M | $6.1M |
| 2026-05-18 | Biotechnology Value Trading Fund OS LP | Insider | Buy | 1.5M | $6.1M |
| 2026-05-18 | BVF INC/IL | Insider | Buy | 1.5M | $6.1M |
| 2026-05-18 | Biotechnology Value Trading Fund OS LP | Insider | Buy | 412,000 | $1.7M |
| 2026-05-18 | BIOTECHNOLOGY VALUE FUND II LP | Insider | Buy | 412,000 | $1.7M |
| 2026-05-18 | BVF Partners OS Ltd. | Insider | Buy | 412,000 | $1.7M |
| 2026-05-18 | BVF INC/IL | Insider | Buy | 412,000 | $1.7M |
| 2026-05-18 | BVF I GP LLC | Insider | Buy | 412,000 | $1.7M |
| 2026-05-18 | BVF Partners OS Ltd. | Insider | Buy | 2.3M | $9.3M |
Source: SEC Form 4 filings · as of 2026-05-18