Marshall Wace
XOMA

Marshall Wace’s Xoma XOMA Stock Holding History

Marshall Wace’s Portfolio XOMA Stock Details XOMA Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		– Sell
-16,308
Closed -$411K – 3487
2025
Q2 		$411K Buy
16,308
+1,775
+12% +$42.5K ﹤0.01% 2210
2025
Q1 		$290K Buy
+14,533
New +$350K ﹤0.01% 2282
2024
Q4 		– Sell
-14,441
Closed -$382K – 3064
2024
Q3 		$382K Buy
+14,441
New +$391K ﹤0.01% 2027
2022
Q1 		– Sell
-6,624
Closed -$138K – 4116
2021
Q4 		$138K Sell
6,624
-2,782
-30% -$65.1K ﹤0.01% 3291
2021
Q3 		$233K Sell
9,406
-5,029
-35% -$148K ﹤0.01% 2749
2021
Q2 		$491K Buy
14,435
+85
+0.6% +$2.85K ﹤0.01% 2139
2021
Q1 		$586K Sell
14,350
-1,522
-10% -$58.9K ﹤0.01% 1884
2020
Q4 		$700K Sell
15,872
-15,466
-49% -$466K ﹤0.01% 1350
2020
Q3 		$590K Sell
31,338
-4,664
-13% -$87.4K ﹤0.01% 1188
2020
Q2 		$711K Sell
36,002
-7,825
-18% -$172K 0.01% 1095
2020
Q1 		$892K Sell
43,827
-1,176
-3% -$27.2K 0.01% 826
2019
Q4 		$1.23M Buy
+45,003
New +$1.01M 0.01% 934
2019
Q3 		– Sell
-29,185
Closed -$434K – 1962
2019
Q2 		$434K Buy
+29,185
New +$438K ﹤0.01% 1112
2015
Q3 		– Sell
-56,710
Closed -$4.4M – 1080
2015
Q2 		$4.4M Sell
56,710
-31,620
-36% -$2.28M 0.06% 319
2015
Q1 		$6.43M Sell
88,330
-7,435
-8% -$546K 0.08% 264
2014
Q4 		$6.88M Buy
95,765
+79,940
+505% +$6.85M 0.09% 246
2014
Q3 		$1.33M Sell
15,825
-5,968
-27% -$509K 0.02% 513
2014
Q2 		$2M Sell
21,793
-37,310
-63% -$3.24M 0.03% 403
2014
Q1 		$6.16M Buy
+59,103
New +$8.58M 0.11% 216

Other funds holding XOMA

BI
BVF Inc San Francisco, California $3.14B AUM 249.53% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
OM
Opaleye Management Boston, Massachusetts $759M AUM 124.8% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
WP
Woodline Partners San Francisco, California $26.4B AUM 44.85% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
SCM
Stonepine Capital Management Bend, Oregon $250M AUM 77.6% 1-Year Est. Return

Marshall Wace's XOMA Position: Q3 2025 in Review

Marshall Wace sold out of Xoma (XOMA) in Q3 2025, closing a stake of 16,308 shares — an estimated $411K sold.

Marshall Wace first reported a position in XOMA in Q1 2014 and held it in 19 quarters. The position peaked at $6.88M in Q4 2014. 74 funds tracked by Wall St. Rank hold XOMA as of Q3 2025.

  • Marshall Wace reported no remaining Xoma position as of Q3 2025 after selling out during the quarter.
  • Marshall Wace sold 16,308 Xoma shares in Q3 2025, an estimated $411K.
  • Marshall Wace first reported a position in Xoma in Q1 2014 and held it in 19 quarters.
  • Marshall Wace's Xoma position peaked at $6.88M in Q4 2014.
  • 74 funds tracked by Wall St. Rank held Xoma as of Q3 2025.

Based on Marshall Wace's 13F filing for Q3 2025, filed 13 Nov 2025.