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
2025
Q2 		– Sell
-500
Closed -$9.96K – 15413
2025
Q1 		$9.96K Sell
500
-1,700
-77% -$40.9K ﹤0.01% 13567
2024
Q4 		$57.8K Buy
2,200
+600
+38% +$17.5K ﹤0.01% 12227
2024
Q3 		$42.4K Sell
1,600
-600
-27% -$16.3K ﹤0.01% 12088
2024
Q2 		$52.1K Buy
2,200
+500
+29% +$12.5K ﹤0.01% 11711
2024
Q1 		$40.9K Sell
1,700
-700
-29% -$15.7K ﹤0.01% 12375
2023
Q4 		$44.4K Sell
2,400
-2,300
-49% -$37.9K ﹤0.01% 11908
2023
Q3 		$66.2K Buy
4,700
+2,400
+104% +$37.6K ﹤0.01% 11398
2023
Q2 		$43.4K Buy
2,300
+1,600
+229% +$30K ﹤0.01% 11974
2023
Q1 		$14.8K Sell
700
-400
-36% -$8.41K ﹤0.01% 13284
2022
Q4 		$20.2K Buy
+1,100
New +$20K ﹤0.01% 13139
2016
Q1 		– Sell
-640
Closed -$17K – 8111
2015
Q4 		$17K Buy
640
+145
+29% +$3.7K ﹤0.01% 8049
2015
Q3 		$7K Sell
495
-3,265
-87% -$103K ﹤0.01% 8574
2015
Q2 		$292K Buy
3,760
+2,305
+158% +$166K ﹤0.01% 5784
2015
Q1 		$106K Sell
1,455
-750
-34% -$55.1K ﹤0.01% 6804
2014
Q4 		$158K Buy
2,205
+225
+11% +$19.3K ﹤0.01% 6241
2014
Q3 		$167K Buy
1,980
+800
+68% +$68.3K ﹤0.01% 5920
2014
Q2 		$108K Buy
1,180
+800
+211% +$69.4K ﹤0.01% 6171
2014
Q1 		$40K Buy
380
+65
+21% +$9.44K ﹤0.01% 6917
2013
Q4 		$42K Sell
315
-640
-67% -$64.5K ﹤0.01% 6143
2013
Q3 		$86K Buy
955
+100
+12% +$9.09K ﹤0.01% 5447
2013
Q2 		$62K Buy
+855
New +$63.6K ﹤0.01% 5543

Other funds holding XOMA

BI
BVF Inc San Francisco, California $3.91B AUM 304.52% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
WP
Woodline Partners San Francisco, California $32.4B AUM 58.5% 1-Year Est. Return
NM
Newtyn Management New York $801M AUM 23.14% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
OM
Opaleye Management Boston, Massachusetts $1.1B AUM 197.64% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
WIC
Water Island Capital New York $1.08B AUM 105.75% 1-Year Est. Return

Citadel Advisors's XOMA Position: Q2 2026 in Review

Citadel Advisors reduced its Xoma (XOMA) stake by 71% in Q2 2026, selling an estimated $2.85M and leaving 28,460 shares worth $1.21M. The position accounts for ﹤0.01% of the portfolio, ranked #7743.

Citadel Advisors first reported a position in XOMA in Q2 2013 and has held it in 28 quarters since. The position peaked at $3.09M in Q1 2026. 98 funds tracked by Wall St. Rank hold XOMA as of Q2 2026.

  • Citadel Advisors held 28,460 shares of Xoma worth $1.21M as of Q2 2026.
  • Citadel Advisors sold 70,178 Xoma shares in Q2 2026, an estimated $2.85M.
  • Xoma made up ﹤0.01% of Citadel Advisors's portfolio in Q2 2026, its #7743 holding.
  • Citadel Advisors first reported a position in Xoma in Q2 2013 and has held it in 28 quarters since.
  • Citadel Advisors's Xoma position peaked at $3.09M in Q1 2026.
  • 98 funds tracked by Wall St. Rank held Xoma as of Q2 2026.

Based on Citadel Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.