Who owns XOMA Royalty (XOMA)
Which tracked institutional funds hold XOMA, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See XOMA company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on XOMA is one-sided between 2026-Q1 and 2026-Q2: 36 added or opened and 12 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
XOMA’s largest tracked holder by dollar value, BVF INC/IL, sizes it at 8.3% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 8.3pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in XOMA divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 95 tracked filers holding XOMA, 54 increased or opened the position and 38 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in XOMA between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 13
- Newtyn Management, LLC$30M
- WATER ISLAND CAPITAL LLC$10M
- ALPINE ASSOCIATES MANAGEMENT INC.$10M
- HSBC HOLDINGS PLC$6M
- TUDOR INVESTMENT CORP ET AL$4M
- TORNO CAPITAL, LLC$3M
Full exits 9
- GW&K Investment Management, LLC$7M
- Stonepine Capital Management, LLC$2M
- PANAGORA ASSET MANAGEMENT INC$2M
- HighVista Strategies LLC$1M
- CM Management, LLC$1M
- STATE OF WISCONSIN INVESTMENT BOARD$906K
Largest adds
- BVF INC/IL$241M
- FMR LLC$29M
- Woodline Partners LP$27M
- MORGAN STANLEY$19M
- BlackRock, Inc.$9M
- Opaleye Management Inc.$5M
Largest trims
- CITADEL ADVISORS LLC$2M
- TLS Advisors LLC$2M
- UBS Group AG$1M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BVF INC/IL added | 7,593,303 | $323M | 42.7% | 2026-Q2 |
| MORGAN STANLEY trimmed | 1,697,167 | $72M | 9.6% | 2026-Q2 |
| FMR LLC added | 1,605,532 | $68M | 9.0% | 2026-Q2 |
| Woodline Partners LP added | 1,114,363 | $47M | 6.3% | 2026-Q2 |
| Newtyn Management, LLC new | 709,247 | $30M | 4.0% | 2026-Q2 |
| BlackRock, Inc. added | 691,971 | $29M | 3.9% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC trimmed | 505,165 | $21M | 2.8% | 2026-Q2 |
| Opaleye Management Inc. added | 338,374 | $14M | 1.9% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 245,321 | $10M | 1.4% | 2026-Q2 |
| WATER ISLAND CAPITAL LLC new | 242,000 | $10M | 1.4% | 2026-Q2 |
| ALPINE ASSOCIATES MANAGEMENT INC. new | 239,318 | $10M | 1.3% | 2026-Q2 |
| STATE STREET CORP added | 197,764 | $8M | 1.1% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC trimmed | 196,307 | $8M | 1.1% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 177,106 | $8M | 1.0% | 2026-Q2 |
| HSBC HOLDINGS PLC new | 149,523 | $6M | 0.8% | 2026-Q2 |
| NORTHERN TRUST CORP added | 96,179 | $4M | 0.5% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 90,348 | $4M | 0.5% | 2026-Q2 |
| TUDOR INVESTMENT CORP ET AL new | 84,391 | $4M | 0.5% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 83,623 | $4M | 0.5% | 2026-Q2 |
| TORNO CAPITAL, LLC new | 80,000 | $3M | 0.5% | 2026-Q2 |
| Bank of New York Mellon Corp added | 75,348 | $3M | 0.4% | 2026-Q2 |
| Verition Fund Management LLC new | 70,601 | $3M | 0.4% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 70,189 | $3M | 0.4% | 2026-Q2 |
| Simcoe Capital LLC | 68,053 | $3M | 0.4% | 2026-Q2 |
| TLS Advisors LLC trimmed | 42,165 | $2M | 0.2% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP added | 36,744 | $2M | 0.2% | 2026-Q2 |
| XTX Topco Ltd new | 35,046 | $1M | 0.2% | 2026-Q2 |
| CREDIT INDUSTRIEL ET COMMERCIAL new | 34,853 | $1M | 0.2% | 2026-Q2 |
| BALYASNY ASSET MANAGEMENT L.P. new | 34,621 | $1M | 0.2% | 2026-Q2 |
| RBF Capital, LLC | 30,000 | $1M | 0.2% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 30,018 | $1M | 0.2% | 2026-Q2 |
| CITADEL ADVISORS LLC trimmed | 28,460 | $1M | 0.2% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 28,078 | $1M | 0.2% | 2026-Q2 |
| SIERRA SUMMIT ADVISORS LLC new | 25,740 | $1M | 0.1% | 2026-Q2 |
| UBS Group AG trimmed | 23,843 | $1M | 0.1% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 20,122 | $855K | 0.1% | 2026-Q2 |
| CSS LLC/IL new | 19,561 | $831K | 0.1% | 2026-Q2 |
| Nuveen, LLC added | 18,388 | $781K | 0.1% | 2026-Q2 |
| JANE STREET GROUP, LLC added | 18,192 | $773K | 0.1% | 2026-Q2 |
| MARTINGALE ASSET MANAGEMENT L P new | 12,200 | $518K | 0.1% | 2026-Q2 |
| RHUMBLINE ADVISERS trimmed | 11,451 | $487K | 0.1% | 2026-Q2 |
| Yakira Capital Management, Inc. new | 10,311 | $438K | 0.1% | 2026-Q2 |
| DIVERSIFIED MANAGEMENT INC | 10,000 | $425K | 0.1% | 2026-Q2 |
| REGIONS FINANCIAL CORP | 9,250 | $393K | 0.1% | 2026-Q2 |
| DEUTSCHE BANK AG\ added | 9,139 | $388K | 0.1% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 8,495 | $361K | 0.0% | 2026-Q2 |
| Kintayl Capital LP new | 8,476 | $360K | 0.0% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 7,005 | $298K | 0.0% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 6,878 | $292K | 0.0% | 2026-Q2 |
| PRELUDE CAPITAL MANAGEMENT, LLC new | 6,066 | $258K | 0.0% | 2026-Q2 |
| SEI INVESTMENTS CO new | 5,682 | $241K | 0.0% | 2026-Q2 |
| MetLife Investment Management, LLC | 5,677 | $241K | 0.0% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. new | 7,620 | $239K | 0.0% | 2026-Q2 |
| Jain Global LLC new | 5,500 | $234K | 0.0% | 2026-Q2 |
| PenderFund Capital Management Ltd. new | 5,200 | $221K | 0.0% | 2026-Q2 |
| Invesco Ltd. trimmed | 4,996 | $212K | 0.0% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC added | 4,958 | $211K | 0.0% | 2026-Q2 |
| SIMPLEX TRADING, LLC added | 4,891 | $208K | 0.0% | 2026-Q2 |
| NEW YORK STATE COMMON RETIREMENT FUND added | 4,762 | $202K | 0.0% | 2026-Q2 |
| CITIGROUP INC added | 4,560 | $194K | 0.0% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. trimmed | 4,258 | $181K | 0.0% | 2026-Q2 |
| Vanguard Global Advisers, LLC | 4,046 | $172K | 0.0% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 3,233 | $137K | 0.0% | 2026-Q2 |
| Police & Firemen's Retirement System of New Jersey | 2,856 | $121K | 0.0% | 2026-Q2 |
| GROUP ONE TRADING LLC added | 2,139 | $91K | 0.0% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 1,592 | $68K | 0.0% | 2026-Q2 |
| BARCLAYS PLC trimmed | 1,400 | $60K | 0.0% | 2026-Q2 |
| OSAIC HOLDINGS, INC. trimmed | 1,217 | $52K | 0.0% | 2026-Q2 |
| Ameritas Investment Partners, Inc. | 959 | $41K | 0.0% | 2026-Q2 |
| Legal & General Group Plc | 854 | $36K | 0.0% | 2026-Q2 |
| Costello Asset Management, INC | 600 | $26K | 0.0% | 2026-Q2 |
| ROYAL BANK OF CANADA trimmed | 587 | $25K | 0.0% | 2026-Q2 |
| Tower Research Capital LLC (TRC) trimmed | 470 | $20K | 0.0% | 2026-Q2 |
| NATIXIS | 372 | $16K | 0.0% | 2026-Q2 |
| NISA INVESTMENT ADVISORS, LLC added | 366 | $16K | 0.0% | 2026-Q2 |
| Truvestments Capital LLC | 290 | $12K | 0.0% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 283 | $12K | 0.0% | 2026-Q2 |
| GAMMA Investing LLC | 152 | $6K | 0.0% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 128 | $5K | 0.0% | 2026-Q2 |
| Quarry LP new | 86 | $4K | 0.0% | 2026-Q2 |
| Sterling Capital Management LLC trimmed | 78 | $3K | 0.0% | 2026-Q2 |
| Caitong International Asset Management Co., Ltd new | 68 | $3K | 0.0% | 2026-Q2 |
| US BANCORP \DE\ | 67 | $3K | 0.0% | 2026-Q2 |
| Optiver Holding B.V. trimmed | 47 | $2K | 0.0% | 2026-Q2 |
| Ancora Advisors LLC | 31 | $1K | 0.0% | 2026-Q2 |
| EverSource Wealth Advisors, LLC trimmed | 25 | $1K | 0.0% | 2026-Q2 |
| Allworth Financial LP added | 21 | $893 | 0.0% | 2026-Q2 |
| MH & ASSOCIATES SECURITIES MANAGEMENT CORP /ADV | 20 | $850 | 0.0% | 2026-Q2 |
| SBI Securities Co., Ltd. trimmed | 10 | $425 | 0.0% | 2026-Q2 |
| Larson Financial Group LLC | 10 | $425 | 0.0% | 2026-Q2 |
| Farther Finance Advisors, LLC new | 8 | $340 | 0.0% | 2026-Q2 |
| PNC Financial Services Group, Inc. trimmed | 7 | $299 | 0.0% | 2026-Q2 |
| ROTHSCHILD INVESTMENT LLC | 3 | $128 | 0.0% | 2026-Q2 |
| Arax Advisory Partners | 3 | $128 | 0.0% | 2026-Q2 |
| TD Waterhouse Canada Inc. | 1 | $43 | 0.0% | 2026-Q2 |
| GW&K Investment Management, LLC new | 232,141 | $7M | 1.0% | 2026-Q1 stale (1 quarter behind) |
| Stonepine Capital Management, LLC trimmed | 69,500 | $2M | 0.3% | 2026-Q1 stale (1 quarter behind) |
| PANAGORA ASSET MANAGEMENT INC added | 58,662 | $2M | 0.2% | 2026-Q1 stale (1 quarter behind) |
| HighVista Strategies LLC trimmed | 46,814 | $1M | 0.2% | 2026-Q1 stale (1 quarter behind) |
| VANGUARD GROUP INC added | 701,657 | $19M | 2.5% | 2025-Q4 stale (2 quarters behind) |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.