Citadel Advisors
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Citadel Advisors’s Xencor XNCR Stock Holding History

Citadel Advisors’s Portfolio XNCR Stock Details XNCR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$4.56M Buy
377,699
+55,891
+17% +$694K ﹤0.01% 4495
2025
Q4 		$4.93M Sell
321,808
-159,360
-33% -$2.38M ﹤0.01% 4307
2025
Q3 		$5.64M Buy
481,168
+260,900
+118% +$2.26M ﹤0.01% 4150
2025
Q2 		$1.73M Buy
220,268
+161,784
+277% +$1.45M ﹤0.01% 5983
2025
Q1 		$622K Sell
58,484
-61,037
-51% -$1.01M ﹤0.01% 7995
2024
Q4 		$2.75M Sell
119,521
-436,466
-79% -$10M ﹤0.01% 4987
2024
Q3 		$11.2M Buy
555,987
+287,410
+107% +$5.4M ﹤0.01% 2733
2024
Q2 		$5.08M Sell
268,577
-49,523
-16% -$1.06M ﹤0.01% 3723
2024
Q1 		$7.04M Buy
318,100
+148,624
+88% +$3.21M ﹤0.01% 3432
2023
Q4 		$3.6M Buy
169,476
+141,151
+498% +$2.69M ﹤0.01% 4333
2023
Q3 		$571K Sell
28,325
-71,392
-72% -$1.62M ﹤0.01% 7776
2023
Q2 		$2.49M Sell
99,717
-72,986
-42% -$1.99M ﹤0.01% 4775
2023
Q1 		$4.82M Buy
172,703
+74,075
+75% +$2.28M ﹤0.01% 3879
2022
Q4 		$2.57M Sell
98,628
-93,881
-49% -$2.63M ﹤0.01% 5017
2022
Q3 		$5M Buy
192,509
+105,253
+121% +$3.01M ﹤0.01% 3871
2022
Q2 		$2.39M Buy
87,256
+67,316
+338% +$1.66M ﹤0.01% 5201
2022
Q1 		$532K Buy
+19,940
New +$643K ﹤0.01% 9242
2021
Q4 		– Sell
-49,900
Closed -$1.89M – 14894
2021
Q3 		$1.63M Buy
49,900
+7,171
+17% +$236K ﹤0.01% 6883
2021
Q2 		$1.47M Buy
42,729
+30,673
+254% +$1.22M ﹤0.01% 7352
2021
Q1 		$519K Sell
12,056
-26,202
-68% -$1.24M ﹤0.01% 9596
2020
Q4 		$1.67M Buy
38,258
+6,175
+19% +$255K ﹤0.01% 5749
2020
Q3 		$1.24M Sell
32,083
-21,441
-40% -$745K ﹤0.01% 5638
2020
Q2 		$1.73M Sell
53,524
-59,817
-53% -$1.83M ﹤0.01% 4825
2020
Q1 		$3.39M Buy
113,341
+105,961
+1,436% +$3.51M ﹤0.01% 3272
2019
Q4 		$254K Buy
+7,380
New +$270K ﹤0.01% 7841
2019
Q3 		– Sell
-43,916
Closed -$1.75M – 9832
2019
Q2 		$1.8M Buy
43,916
+8,203
+23% +$269K ﹤0.01% 4701
2019
Q1 		$1.11M Buy
+35,713
New +$1.19M ﹤0.01% 5397
2018
Q3 		– Sell
-17,600
Closed -$718K – 9764
2018
Q2 		$651K Sell
17,600
-45,743
-72% -$1.58M ﹤0.01% 5939
2018
Q1 		$1.9M Buy
+63,343
New +$1.66M ﹤0.01% 3813
2017
Q3 		– Sell
-10,626
Closed -$224K – 8135
2017
Q2 		$224K Buy
+10,626
New +$238K ﹤0.01% 6386
2017
Q1 		– Sell
-11,631
Closed -$306K – 8128
2016
Q4 		$306K Sell
11,631
-37,516
-76% -$902K ﹤0.01% 5640
2016
Q3 		$1.2M Buy
+49,147
New +$1.04M ﹤0.01% 3588
2015
Q4 		– Sell
-21,728
Closed -$266K – 9278
2015
Q3 		$266K Sell
21,728
-226,153
-91% -$4.43M ﹤0.01% 5743
2015
Q2 		$5.45M Sell
247,881
-27,573
-10% -$470K ﹤0.01% 1984
2015
Q1 		$4.22M Buy
+275,454
New +$4.35M ﹤0.01% 2203

Other funds holding XNCR

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return
BI
BVF Inc San Francisco, California $3.14B AUM 249.53% 1-Year Est. Return
RI
RTW Investments New York $10B AUM 135.35% 1-Year Est. Return
RCM
RA Capital Management Boston, Massachusetts $9.44B AUM 157.3% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
TCM
TCG Crossover Management Palo Alto, California $3.5B AUM 1,165.83% 1-Year Est. Return
EC
EcoR1 Capital San Francisco, California $2.36B AUM 204.53% 1-Year Est. Return

Citadel Advisors's XNCR Position: Q1 2026 in Review

Citadel Advisors increased its Xencor (XNCR) stake by 17% in Q1 2026, buying an estimated $694K and bringing the position to 377,699 shares worth $4.56M. The position accounts for ﹤0.01% of the portfolio, ranked #4495.

Citadel Advisors first reported a position in XNCR in Q1 2015 and has held it in 35 quarters since. The position peaked at $11.2M in Q3 2024. 203 funds tracked by Wall St. Rank hold XNCR as of Q1 2026.

  • Citadel Advisors held 377,699 shares of Xencor worth $4.56M as of Q1 2026.
  • Citadel Advisors bought 55,891 Xencor shares in Q1 2026, an estimated $694K.
  • Xencor made up ﹤0.01% of Citadel Advisors's portfolio in Q1 2026, its #4495 holding.
  • Citadel Advisors first reported a position in Xencor in Q1 2015 and has held it in 35 quarters since.
  • Citadel Advisors's Xencor position peaked at $11.2M in Q3 2024.
  • 203 funds tracked by Wall St. Rank held Xencor as of Q1 2026.

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