Xoma
XOMA
XOMA was delisted on the 13th of July, 2026.
74 hedge funds and large institutions have $320M invested in Xoma in 2025 Q3 according to their latest regulatory filings, with 16 funds opening new positions, 23 increasing their positions, 17 reducing their positions, and 7 closing their positions.
129% more first-time investments, than exits
New positions opened: 16 | Existing positions closed: 7
56% more capital invested
Capital invested by funds: $206M → $320M (+$115M)
35% more repeat investments, than reductions
Existing positions increased: 23 | Existing positions reduced: 17
14% more funds holding
Funds holding: 65 → 74 (+9)
0.6% more ownership
Funds ownership: 68.32% → 68.92% (+0.6%)
0% more funds holding in top 10
Funds holding in top 10: 3 → 3 (0)
73% less call options, than puts
Call options by funds: $3K | Put options by funds: $11K
Top Buyers
| 1 |
Morgan Stanley
New York
|
+$3.17M |
| 2 |
Wellington Management Group
Boston,
Massachusetts
|
+$1.01M |
| 3 |
WP
Woodline Partners
San Francisco,
California
|
+$923K |
| 4 |
Vanguard Group
Malvern,
Pennsylvania
|
+$910K |
| 5 |
Jane Street
New York
|
+$850K |
Top Sellers
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
76
Marshall Wace
London,
United Kingdom
| – | -$411K | -16,308 | Closed |
|
77
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
| – | -$291K | -11,559 | Closed |
|
78
Lazard Asset Management
New York
| – | -$121K | -4,819 | Closed |
|
79
Raymond James Financial
St Petersburg,
Florida
| – | -$116K | -4,600 | Closed |
|
80
Group One Trading
Chicago,
Illinois
| – | -$22.7K | -900 | Closed |
|
|
C
81
Covestor
London,
United Kingdom
| – | -$1K | -58 | Closed |
|
XOMA Hedge Fund Activity: Q3 2025 in Review
74 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in Xoma (XOMA) for Q3 2025, worth a combined $320M — up 56% from $206M a quarter earlier.
Buyers outnumbered sellers: 16 funds opened new XOMA positions and 7 closed out — a net gain of 9 holders — while 23 added to existing stakes and 17 trimmed.
The largest buyer was Morgan Stanley, adding an estimated $3.17M. The largest seller was Stonepine Capital Management, cutting an estimated $1.14M.
- 74 institutional investors held Xoma (XOMA) as of Q3 2025, up from 65 in Q2 2025.
- Funds reported $320M of Xoma stock for Q3 2025, up 56% quarter-over-quarter.
- 16 funds opened new Xoma positions in Q3 2025 and 7 closed out, a net change of +9 holders.
- The largest Xoma buyer in Q3 2025 was Morgan Stanley, an estimated $3.17M added.
- The largest Xoma seller in Q3 2025 was Stonepine Capital Management, an estimated $1.14M sold.
Based on aggregated 13F filings for Q3 2025.