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 $3.14B 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.