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
2025
Q2 		– Sell
-1,900
Closed -$20.2K – 15410
2025
Q1 		$20.2K Sell
1,900
-2,300
-55% -$38K ﹤0.01% 13135
2024
Q4 		$96.5K Sell
4,200
-3,700
-47% -$85K ﹤0.01% 11539
2024
Q3 		$159K Buy
7,900
+4,900
+163% +$92K ﹤0.01% 10489
2024
Q2 		$56.8K Buy
3,000
+1,700
+131% +$36.5K ﹤0.01% 11621
2024
Q1 		$28.8K Buy
1,300
+900
+225% +$19.4K ﹤0.01% 12726
2023
Q4 		$8.49K Sell
400
-1,700
-81% -$32.3K ﹤0.01% 13218
2023
Q3 		$42.3K Buy
2,100
+1,500
+250% +$34.1K ﹤0.01% 11942
2023
Q2 		$15K Sell
600
-3,300
-85% -$89.8K ﹤0.01% 12972
2023
Q1 		$109K Buy
3,900
+1,200
+44% +$37K ﹤0.01% 11133
2022
Q4 		$70.3K Buy
+2,700
New +$75.5K ﹤0.01% 11696
2021
Q2 		– Sell
-62,500
Closed -$2.69M – 14551
2021
Q1 		$2.69M Sell
62,500
-5,300
-8% -$251K ﹤0.01% 5705
2020
Q4 		$2.96M Buy
+67,800
New +$2.8M ﹤0.01% 4605
2020
Q2 		– Sell
-7,500
Closed -$224K – 10618
2020
Q1 		$224K Buy
7,500
+1,500
+25% +$49.7K ﹤0.01% 7826
2019
Q4 		$206K Sell
6,000
-2,400
-29% -$87.7K ﹤0.01% 8139
2019
Q3 		$283K Sell
8,400
-4,400
-34% -$176K ﹤0.01% 7639
2019
Q2 		$524K Buy
12,800
+1,600
+14% +$52.6K ﹤0.01% 6753
2019
Q1 		$348K Buy
+11,200
New +$373K ﹤0.01% 7394
2015
Q4 		– Sell
-2,000
Closed -$24K – 9279
2015
Q3 		$24K Buy
2,000
+1,800
+900% +$35.2K ﹤0.01% 8048
2015
Q2 		$4K Buy
+200
New +$3.41K ﹤0.01% 8573

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.