Citadel Advisors
XOMA

Citadel Advisors’s Xoma XOMA Stock Holding History

Citadel Advisors’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 		$364K Buy
+11,600
New +$311K ﹤0.01% 10027
2025
Q2 		– Sell
-200
Closed -$3.99K – 15411
2025
Q1 		$3.99K Sell
200
-1,000
-83% -$24.1K ﹤0.01% 13925
2024
Q4 		$31.5K Buy
1,200
+1,100
+1,100% +$32.1K ﹤0.01% 12821
2024
Q3 		$2.65K Sell
100
-900
-90% -$24.4K ﹤0.01% 13729
2024
Q2 		$23.7K Sell
1,000
-9,100
-90% -$228K ﹤0.01% 12490
2024
Q1 		$243K Hold
10,100
– – ﹤0.01% 9918
2023
Q4 		$187K Sell
10,100
-7,600
-43% -$125K ﹤0.01% 10052
2023
Q3 		$249K Buy
17,700
+6,300
+55% +$98.8K ﹤0.01% 9503
2023
Q2 		$215K Buy
11,400
+9,500
+500% +$178K ﹤0.01% 9724
2023
Q1 		$40.1K Hold
1,900
– – ﹤0.01% 12430
2022
Q4 		$35K Sell
1,900
-32,200
-94% -$585K ﹤0.01% 12572
2022
Q3 		$611K Sell
34,100
-32,600
-49% -$672K ﹤0.01% 8031
2022
Q2 		$1.49M Buy
+66,700
New +$1.37M ﹤0.01% 6147
2016
Q4 		– Sell
-1,230
Closed -$11K – 7935
2016
Q3 		$11K Buy
1,230
+520
+73% +$5.98K ﹤0.01% 7138
2016
Q2 		$8K Sell
710
-395
-36% -$5.66K ﹤0.01% 6737
2016
Q1 		$17K Sell
1,105
-840
-43% -$15.1K ﹤0.01% 6519
2015
Q4 		$52K Buy
1,945
+685
+54% +$17.5K ﹤0.01% 7281
2015
Q3 		$19K Sell
1,260
-9,695
-88% -$306K ﹤0.01% 8200
2015
Q2 		$850K Buy
10,955
+9,840
+883% +$709K ﹤0.01% 4190
2015
Q1 		$81K Buy
1,115
+200
+22% +$14.7K ﹤0.01% 7015
2014
Q4 		$66K Buy
915
+90
+11% +$7.71K ﹤0.01% 6994
2014
Q3 		$69K Sell
825
-1,840
-69% -$157K ﹤0.01% 6683
2014
Q2 		$245K Buy
2,665
+1,605
+151% +$139K ﹤0.01% 5321
2014
Q1 		$110K Buy
1,060
+730
+221% +$106K ﹤0.01% 6111
2013
Q4 		$44K Sell
330
-220
-40% -$22.2K ﹤0.01% 6121
2013
Q3 		$49K Buy
550
+495
+900% +$45K ﹤0.01% 5805
2013
Q2 		$4K Buy
+55
New +$4.09K ﹤0.01% 6362

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
BlackRock
BlackRock New York $5.72T AUM 30.48% 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

Citadel Advisors's XOMA Position: Q1 2026 in Review

Citadel Advisors opened a new position in Xoma (XOMA) in Q1 2026: 98,638 shares worth $3.09M. The stake represents ﹤0.01% of the portfolio and ranks #5201 among its holdings. This is a return to the name: Citadel Advisors previously reported a position in XOMA as recently as Q3 2025.

Citadel Advisors first reported a position in XOMA in Q2 2013 and has held it in 27 quarters since. 85 funds tracked by Wall St. Rank hold XOMA as of Q1 2026.

  • Citadel Advisors held 98,638 shares of Xoma worth $3.09M as of Q1 2026.
  • Xoma was a new Citadel Advisors position in Q1 2026.
  • Xoma made up ﹤0.01% of Citadel Advisors's portfolio in Q1 2026, its #5201 holding.
  • Citadel Advisors first reported a position in Xoma in Q2 2013 and has held it in 27 quarters since.
  • 85 funds tracked by Wall St. Rank held Xoma as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.