Citadel Advisors
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Citadel Advisors’s Cerus CERS Stock Holding History

Citadel Advisors’s Portfolio CERS Stock Details CERS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$248K Buy
136,300
+104,900
+334% +$229K ﹤0.01% 10926
2025
Q4 		$64.7K Buy
31,400
+14,100
+82% +$24.4K ﹤0.01% 11906
2025
Q3 		$27.5K Buy
17,300
+1,300
+8% +$1.76K ﹤0.01% 12423
2025
Q2 		$22.6K Sell
16,000
-13,800
-46% -$18.4K ﹤0.01% 12078
2025
Q1 		$41.4K Buy
29,800
+21,100
+243% +$35.3K ﹤0.01% 12512
2024
Q4 		$13.4K Sell
8,700
-14,900
-63% -$25.6K ﹤0.01% 13447
2024
Q3 		$41.1K Buy
23,600
+9,400
+66% +$19.7K ﹤0.01% 12123
2024
Q2 		$25K Sell
14,200
-17,900
-56% -$32K ﹤0.01% 12440
2024
Q1 		$60.7K Buy
32,100
+1,100
+4% +$2.24K ﹤0.01% 11985
2023
Q4 		$67K Buy
31,000
+6,200
+25% +$10.2K ﹤0.01% 11448
2023
Q3 		$40.2K Buy
24,800
+3,900
+19% +$8.11K ﹤0.01% 11990
2023
Q2 		$51.4K Sell
20,900
-6,600
-24% -$15.7K ﹤0.01% 11766
2023
Q1 		$81.7K Sell
27,500
-17,200
-38% -$51.8K ﹤0.01% 11528
2022
Q4 		$163K Sell
44,700
-85,300
-66% -$322K ﹤0.01% 10476
2022
Q3 		$468K Buy
130,000
+5,500
+4% +$26.3K ﹤0.01% 8608
2022
Q2 		$659K Buy
124,500
+109,200
+714% +$545K ﹤0.01% 8025
2022
Q1 		$84K Sell
15,300
-36,900
-71% -$204K ﹤0.01% 12435
2021
Q4 		$355K Sell
52,200
-28,900
-36% -$195K ﹤0.01% 10531
2021
Q3 		$494K Buy
81,100
+13,900
+21% +$81.1K ﹤0.01% 9898
2021
Q2 		$397K Buy
67,200
+7,400
+12% +$43.4K ﹤0.01% 10579
2021
Q1 		$359K Buy
59,800
+31,600
+112% +$215K ﹤0.01% 10433
2020
Q4 		$195K Sell
28,200
-14,200
-33% -$93.1K ﹤0.01% 9751
2020
Q3 		$265K Buy
42,400
+7,000
+20% +$46.5K ﹤0.01% 8351
2020
Q2 		$234K Buy
35,400
+7,400
+26% +$42.4K ﹤0.01% 8296
2020
Q1 		$130K Buy
+28,000
New +$127K ﹤0.01% 8414
2019
Q4 		– Sell
-88,800
Closed -$458K – 9153
2019
Q3 		$458K Buy
88,800
+58,700
+195% +$315K ﹤0.01% 6898
2019
Q2 		$169K Buy
30,100
+12,300
+69% +$68K ﹤0.01% 8294
2019
Q1 		$111K Sell
17,800
-41,700
-70% -$253K ﹤0.01% 8503
2018
Q4 		$302K Sell
59,500
-36,900
-38% -$214K ﹤0.01% 7260
2018
Q3 		$695K Buy
96,400
+29,900
+45% +$217K ﹤0.01% 6168
2018
Q2 		$444K Buy
66,500
+31,100
+88% +$191K ﹤0.01% 6564
2018
Q1 		$194K Buy
35,400
+4,100
+13% +$18.6K ﹤0.01% 7372
2017
Q4 		$106K Sell
31,300
-4,900
-14% -$16.6K ﹤0.01% 7410
2017
Q3 		$99K Sell
36,200
-29,100
-45% -$71.3K ﹤0.01% 7032
2017
Q2 		$164K Buy
65,300
+41,000
+169% +$131K ﹤0.01% 6677
2017
Q1 		$108K Sell
24,300
-13,100
-35% -$55.5K ﹤0.01% 6829
2016
Q4 		$163K Sell
37,400
-20,800
-36% -$108K ﹤0.01% 6452
2016
Q3 		$361K Buy
58,200
+19,200
+49% +$126K ﹤0.01% 5366
2016
Q2 		$243K Buy
39,000
+2,700
+7% +$16.1K ﹤0.01% 5532
2016
Q1 		$215K Buy
36,300
+18,100
+99% +$100K ﹤0.01% 5550
2015
Q4 		$115K Sell
18,200
-2,600
-13% -$13.8K ﹤0.01% 6530
2015
Q3 		$94K Sell
20,800
-13,900
-40% -$71.9K ﹤0.01% 7012
2015
Q2 		$180K Sell
34,700
-38,700
-53% -$183K ﹤0.01% 6454
2015
Q1 		$306K Buy
73,400
+24,200
+49% +$124K ﹤0.01% 5621
2014
Q4 		$307K Buy
49,200
+24,000
+95% +$109K ﹤0.01% 5392
2014
Q3 		$101K Sell
25,200
-24,200
-49% -$93.1K ﹤0.01% 6404
2014
Q2 		$205K Sell
49,400
-8,100
-14% -$34.7K ﹤0.01% 5542
2014
Q1 		$276K Buy
57,500
+53,800
+1,454% +$346K ﹤0.01% 5113
2013
Q4 		$24K Buy
+3,700
New +$23.2K ﹤0.01% 6364

Other funds holding CERS

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
AIM
ARK Investment Management St. Petersburg, Florida $12.9B AUM 64.92% 1-Year Est. Return
SCM
Soleus Capital Management Greenwich, Connecticut $2.47B AUM 115.63% 1-Year Est. Return
BBA
Baker Bros. Advisors New York $17.4B AUM 131.5% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
WA
Wasatch Advisors Salt Lake City, Utah $15.3B AUM 25.06% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
NAMA
Nikko Asset Management Americas New York $7.07B AUM 50.91% 1-Year Est. Return
Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $154B AUM 29.96% 1-Year Est. Return
SAM
Silvercrest Asset Management New York $13.8B AUM 28.39% 1-Year Est. Return

Citadel Advisors's CERS Position: Q1 2026 in Review

Citadel Advisors sold out of Cerus (CERS) in Q1 2026, closing a stake of 945,020 shares — an estimated $2.06M sold.

Citadel Advisors first reported a position in CERS in Q4 2013 and held it in 47 quarters. The position peaked at $10M in Q2 2019. 168 funds tracked by Wall St. Rank hold CERS as of Q1 2026.

  • Citadel Advisors reported no remaining Cerus position as of Q1 2026 after selling out during the quarter.
  • Citadel Advisors sold 945,020 Cerus shares in Q1 2026, an estimated $2.06M.
  • Citadel Advisors first reported a position in Cerus in Q4 2013 and held it in 47 quarters.
  • Citadel Advisors's Cerus position peaked at $10M in Q2 2019.
  • 168 funds tracked by Wall St. Rank held Cerus as of Q1 2026.

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