BlackRock
XOMA

BlackRock’s Xoma XOMA Stock Holding History

BlackRock’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
2026
Q1 		$20.3M Buy
646,914
+35,399
+6% +$948K ﹤0.01% 3072
2025
Q4 		$16.3M Buy
611,515
+18,613
+3% +$599K ﹤0.01% 3198
2025
Q3 		$22.9M Buy
592,902
+1,229
+0.2% +$38.2K ﹤0.01% 3016
2025
Q2 		$14.9M Buy
591,673
+58,885
+11% +$1.41M ﹤0.01% 3187
2025
Q1 		$10.6M Sell
532,788
-6,136
-1% -$148K ﹤0.01% 3283
2024
Q4 		$14.2M Buy
538,924
+3,266
+0.6% +$95.4K ﹤0.01% 3243
2024
Q3 		$14.2M Buy
535,658
+23,173
+5% +$628K ﹤0.01% 3229
2024
Q2 		$12.1M Buy
512,485
+31,977
+7% +$800K ﹤0.01% 3266
2024
Q1 		$11.6M Sell
480,508
-7,977
-2% -$179K ﹤0.01% 3277
2023
Q4 		$9.04M Buy
488,485
+30,998
+7% +$510K ﹤0.01% 3447
2023
Q3 		$6.45M Buy
457,487
+28,748
+7% +$451K ﹤0.01% 3555
2023
Q2 		$8.1M Buy
428,739
+306,944
+252% +$5.75M ﹤0.01% 3510
2023
Q1 		$2.57M Buy
121,795
+469
+0.4% +$9.86K ﹤0.01% 3936
2022
Q4 		$2.23M Buy
121,326
+293
+0.2% +$5.32K ﹤0.01% 4094
2022
Q3 		$2.17M Sell
121,033
-42,024
-26% -$866K ﹤0.01% 4158
2022
Q2 		$3.63M Sell
163,057
-298,438
-65% -$6.13M ﹤0.01% 3961
2022
Q1 		$12.9M Sell
461,495
-1,329
-0.3% -$30.3K ﹤0.01% 3448
2021
Q4 		$9.65M Sell
462,824
-972
-0.2% -$22.7K ﹤0.01% 3693
2021
Q3 		$11.5M Buy
463,796
+8,335
+2% +$246K ﹤0.01% 3616
2021
Q2 		$15.5M Sell
455,461
-23,528
-5% -$788K ﹤0.01% 3444
2021
Q1 		$19.5M Buy
478,989
+1,936
+0.4% +$74.9K ﹤0.01% 3198
2020
Q4 		$21.1M Buy
477,053
+26,836
+6% +$809K ﹤0.01% 2983
2020
Q3 		$8.48M Buy
450,217
+2,499
+0.6% +$46.8K ﹤0.01% 3315
2020
Q2 		$8.85M Buy
447,718
+273,706
+157% +$6.01M ﹤0.01% 3255
2020
Q1 		$3.54M Sell
174,012
-2,605
-1% -$60.1K ﹤0.01% 3480
2019
Q4 		$4.82M Buy
176,617
+16,443
+10% +$368K ﹤0.01% 3513
2019
Q3 		$3.16M Sell
160,174
-506
-0.3% -$9.07K ﹤0.01% 3614
2019
Q2 		$2.39M Sell
160,680
-335,259
-68% -$5.03M ﹤0.01% 3720
2019
Q1 		$6.14M Sell
495,939
-12,733
-3% -$174K ﹤0.01% 3337
2018
Q4 		$6.43M Buy
508,672
+56,130
+12% +$803K ﹤0.01% 3304
2018
Q3 		$7.95M Buy
452,542
+3,686
+0.8% +$73.9K ﹤0.01% 3337
2018
Q2 		$9.37M Buy
448,856
+270,437
+152% +$6.15M ﹤0.01% 3263
2018
Q1 		$3.61M Sell
178,419
-10,383
-5% -$291K ﹤0.01% 3519
2017
Q4 		$6.72M Buy
188,802
+1,283
+0.7% +$34.8K ﹤0.01% 3334
2017
Q3 		$3.69M Buy
187,519
+73,315
+64% +$819K ﹤0.01% 3550
2017
Q2 		$798K Buy
114,204
+14,130
+14% +$94K ﹤0.01% 3903
2017
Q1 		$712K Buy
100,074
+100,071
+3,335,700% +$514K ﹤0.01% 3884
2016
Q4 		$0 Hold
3
– – ﹤0.01% 3825
2016
Q3 		$0 Buy
+3
New +$34 ﹤0.01% 3764
2016
Q2 		– Sell
-173
Closed -$3K – 3837
2016
Q1 		$3K Buy
173
+66
+62% +$1.19K ﹤0.01% 3423
2015
Q4 		$3K Hold
107
– – ﹤0.01% 3274
2015
Q3 		$2K Hold
107
– – ﹤0.01% 3168
2015
Q2 		$8K Hold
107
– – ﹤0.01% 2933
2015
Q1 		$8K Hold
107
– – ﹤0.01% 2857
2014
Q4 		$8K Hold
107
– – ﹤0.01% 2898
2014
Q3 		$9K Hold
107
– – ﹤0.01% 2809
2014
Q2 		$10K Sell
107
-1
-0.9% -$87 ﹤0.01% 2799
2014
Q1 		$11K Buy
108
+14
+15% +$2.03K ﹤0.01% 2670
2013
Q4 		$13K Hold
94
– – ﹤0.01% 2573
2013
Q3 		$8K Hold
94
– – ﹤0.01% 2800
2013
Q2 		$7K Buy
+94
New +$7K ﹤0.01% 2881

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
WP
Woodline Partners San Francisco, California $26.4B AUM 44.85% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
OM
Opaleye Management Boston, Massachusetts $759M AUM 124.8% 1-Year Est. Return
GKIM
GW&K Investment Management Boston, Massachusetts $11.3B AUM 31.98% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

BlackRock's XOMA Position: Q1 2026 in Review

BlackRock increased its Xoma (XOMA) stake by 5.8% in Q1 2026, buying an estimated $948K and bringing the position to 646,914 shares worth $20.3M. The position accounts for ﹤0.01% of the portfolio, ranked #3072.

BlackRock first reported a position in XOMA in Q2 2013 and has held it in 51 quarters since. The position peaked at $22.9M in Q3 2025. 85 funds tracked by Wall St. Rank hold XOMA as of Q1 2026.

  • BlackRock held 646,914 shares of Xoma worth $20.3M as of Q1 2026.
  • BlackRock bought 35,399 Xoma shares in Q1 2026, an estimated $948K.
  • Xoma made up ﹤0.01% of BlackRock's portfolio in Q1 2026, its #3072 holding.
  • BlackRock first reported a position in Xoma in Q2 2013 and has held it in 51 quarters since.
  • BlackRock's Xoma position peaked at $22.9M in Q3 2025.
  • 85 funds tracked by Wall St. Rank held Xoma as of Q1 2026.

Based on BlackRock's 13F filing for Q1 2026, filed 13 May 2026.