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 		$95.2K Sell
52,300
-22,100
-30% -$48.2K ﹤0.01% 12054
2025
Q4 		$153K Buy
74,400
+1,700
+2% +$2.95K ﹤0.01% 11292
2025
Q3 		$116K Buy
72,700
+24,400
+51% +$33K ﹤0.01% 11741
2025
Q2 		$68.1K Buy
48,300
+35,500
+277% +$47.3K ﹤0.01% 11611
2025
Q1 		$17.8K Sell
12,800
-35,800
-74% -$59.9K ﹤0.01% 13225
2024
Q4 		$74.8K Buy
48,600
+26,100
+116% +$44.9K ﹤0.01% 11870
2024
Q3 		$39.1K Buy
22,500
+15,300
+213% +$32.1K ﹤0.01% 12163
2024
Q2 		$12.7K Sell
7,200
-3,900
-35% -$6.98K ﹤0.01% 12975
2024
Q1 		$21K Buy
11,100
+1,500
+16% +$3.06K ﹤0.01% 12981
2023
Q4 		$20.7K Sell
9,600
-2,900
-23% -$4.78K ﹤0.01% 12593
2023
Q3 		$20.3K Sell
12,500
-14,700
-54% -$30.6K ﹤0.01% 12620
2023
Q2 		$66.9K Sell
27,200
-43,500
-62% -$103K ﹤0.01% 11455
2023
Q1 		$210K Buy
70,700
+27,200
+63% +$81.9K ﹤0.01% 10094
2022
Q4 		$159K Buy
43,500
+20,800
+92% +$78.4K ﹤0.01% 10524
2022
Q3 		$82K Sell
22,700
-24,500
-52% -$117K ﹤0.01% 11255
2022
Q2 		$250K Buy
47,200
+3,000
+7% +$15K ﹤0.01% 10216
2022
Q1 		$243K Sell
44,200
-22,700
-34% -$126K ﹤0.01% 11065
2021
Q4 		$456K Buy
66,900
+7,100
+12% +$47.8K ﹤0.01% 9923
2021
Q3 		$364K Buy
59,800
+22,900
+62% +$134K ﹤0.01% 10631
2021
Q2 		$218K Sell
36,900
-13,800
-27% -$80.9K ﹤0.01% 11971
2021
Q1 		$305K Sell
50,700
-5,500
-10% -$37.4K ﹤0.01% 10816
2020
Q4 		$389K Buy
56,200
+14,800
+36% +$97K ﹤0.01% 8623
2020
Q3 		$259K Sell
41,400
-10,400
-20% -$69K ﹤0.01% 8386
2020
Q2 		$342K Buy
51,800
+40,200
+347% +$230K ﹤0.01% 7697
2020
Q1 		$54K Buy
+11,600
New +$52.5K ﹤0.01% 8995
2019
Q4 		– Sell
-18,600
Closed -$96K – 9152
2019
Q3 		$96K Buy
18,600
+900
+5% +$4.83K ﹤0.01% 8499
2019
Q2 		$99K Sell
17,700
-28,600
-62% -$158K ﹤0.01% 8534
2019
Q1 		$288K Buy
46,300
+26,800
+137% +$163K ﹤0.01% 7671
2018
Q4 		$99K Sell
19,500
-33,300
-63% -$193K ﹤0.01% 8240
2018
Q3 		$381K Buy
52,800
+29,900
+131% +$217K ﹤0.01% 7162
2018
Q2 		$153K Buy
22,900
+4,900
+27% +$30.1K ﹤0.01% 8052
2018
Q1 		$99K Sell
18,000
-7,800
-30% -$35.5K ﹤0.01% 7712
2017
Q4 		$87K Buy
+25,800
New +$87.4K ﹤0.01% 7477
2017
Q3 		– Sell
-18,000
Closed -$45K – 7562
2017
Q2 		$45K Sell
18,000
-2,600
-13% -$8.32K ﹤0.01% 7118
2017
Q1 		$92K Sell
20,600
-7,100
-26% -$30.1K ﹤0.01% 6890
2016
Q4 		$120K Sell
27,700
-24,700
-47% -$129K ﹤0.01% 6600
2016
Q3 		$325K Buy
52,400
+38,700
+282% +$253K ﹤0.01% 5544
2016
Q2 		$85K Sell
13,700
-27,800
-67% -$165K ﹤0.01% 6258
2016
Q1 		$246K Buy
41,500
+7,500
+22% +$41.5K ﹤0.01% 5349
2015
Q4 		$215K Sell
34,000
-61,800
-65% -$329K ﹤0.01% 5709
2015
Q3 		$435K Sell
95,800
-34,100
-26% -$176K ﹤0.01% 4995
2015
Q2 		$674K Buy
129,900
+117,200
+923% +$555K ﹤0.01% 4527
2015
Q1 		$53K Buy
12,700
+8,700
+218% +$44.6K ﹤0.01% 7344
2014
Q4 		$25K Buy
+4,000
New +$18.2K ﹤0.01% 7648
2014
Q3 		– Sell
-2,100
Closed -$9K – 8129
2014
Q2 		$9K Sell
2,100
-2,000
-49% -$8.57K ﹤0.01% 7597
2014
Q1 		$20K Sell
4,100
-3,200
-44% -$20.6K ﹤0.01% 7286
2013
Q4 		$47K Buy
+7,300
New +$45.9K ﹤0.01% 6079

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.