Group One Trading’s Cerus CERS Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$5.46K Sell
3,000
-2,300
-43% -$5.01K ﹤0.01% 6668
2025
Q4
$10.9K Sell
5,300
-84,000
-94% -$146K ﹤0.01% 6767
2025
Q3
$142K Sell
89,300
-34,300
-28% -$46.3K ﹤0.01% 5003
2025
Q2
$174K Buy
123,600
+28,500
+30% +$38K ﹤0.01% 4478
2025
Q1
$132K Sell
95,100
-47,400
-33% -$79.3K ﹤0.01% 4382
2024
Q4
$219K Buy
142,500
+54,800
+62% +$94.3K ﹤0.01% 3866
2024
Q3
$153K Buy
87,700
+76,600
+690% +$161K ﹤0.01% 3854
2024
Q2
$19.5K Buy
11,100
+4,000
+56% +$7.15K ﹤0.01% 5248
2024
Q1
$13.4K Sell
7,100
-2,200
-24% -$4.49K ﹤0.01% 5689
2023
Q4
$20.1K Sell
9,300
-38,700
-81% -$63.8K ﹤0.01% 5749
2023
Q3
$77.8K Sell
48,000
-1,300
-3% -$2.7K ﹤0.01% 4688
2023
Q2
$121K Sell
49,300
-3,500
-7% -$8.32K ﹤0.01% 4426
2023
Q1
$157K Buy
52,800
+40,200
+319% +$121K ﹤0.01% 3888
2022
Q4
$46K Sell
12,600
-7,600
-38% -$28.7K ﹤0.01% 5061
2022
Q3
$73K Sell
20,200
-34,500
-63% -$165K ﹤0.01% 5069
2022
Q2
$289K Buy
54,700
+31,000
+131% +$155K ﹤0.01% 3939
2022
Q1
$130K Sell
23,700
-79,100
-77% -$438K ﹤0.01% 5241
2021
Q4
$700K Sell
102,800
-3,200
-3% -$21.5K ﹤0.01% 3731
2021
Q3
$646K Sell
106,000
-31,100
-23% -$181K ﹤0.01% 3905
2021
Q2
$810K Buy
137,100
+61,600
+82% +$361K ﹤0.01% 3648
2021
Q1
$454K Sell
75,500
-20,400
-21% -$139K ﹤0.01% 4153
2020
Q4
$664K Buy
95,900
+46,300
+93% +$304K ﹤0.01% 3030
2020
Q3
$311K Sell
49,600
-208,500
-81% -$1.38M ﹤0.01% 3290
2020
Q2
$1.7M Buy
258,100
+99,200
+62% +$569K 0.01% 1588
2020
Q1
$739K Buy
158,900
+43,400
+38% +$197K 0.01% 1761
2019
Q4
$487K Sell
115,500
-88,200
-43% -$380K ﹤0.01% 2450
2019
Q3
$1.05M Buy
203,700
+173,200
+568% +$929K 0.01% 1707
2019
Q2
$171K Sell
30,500
-2,600
-8% -$14.4K ﹤0.01% 2978
2019
Q1
$206K Sell
33,100
-48,200
-59% -$293K ﹤0.01% 2678
2018
Q4
$412K Sell
81,300
-37,700
-32% -$219K ﹤0.01% 2124
2018
Q3
$858K Buy
119,000
+54,800
+85% +$398K 0.01% 1823
2018
Q2
$428K Buy
64,200
+22,400
+54% +$137K ﹤0.01% 2421
2018
Q1
$229K Sell
41,800
-24,800
-37% -$113K ﹤0.01% 2682
2017
Q4
$225K Sell
66,600
-9,200
-12% -$31.1K ﹤0.01% 2849
2017
Q3
$207K Buy
75,800
+52,800
+230% +$129K ﹤0.01% 2739
2017
Q2
$58K Sell
23,000
-54,200
-70% -$174K ﹤0.01% 3428
2017
Q1
$344K Sell
77,200
-124,900
-62% -$529K ﹤0.01% 2136
2016
Q4
$879K Sell
202,100
-62,000
-23% -$323K 0.01% 1396
2016
Q3
$1.64M Buy
264,100
+168,700
+177% +$1.1M 0.02% 956
2016
Q2
$595K Buy
95,400
+27,400
+40% +$163K 0.01% 1609
2016
Q1
$403K Sell
68,000
-35,100
-34% -$194K 0.01% 1835
2015
Q4
$652K Sell
103,100
-44,600
-30% -$237K 0.01% 1604
2015
Q3
$671K Sell
147,700
-230,400
-61% -$1.19M 0.01% 1544
2015
Q2
$1.96M Buy
378,100
+268,200
+244% +$1.27M 0.03% 765
2015
Q1
$458K Buy
109,900
+104,300
+1,863% +$534K 0.01% 1670
2014
Q4
$35K Sell
5,600
-20,300
-78% -$92.1K ﹤0.01% 3608
2014
Q3
$104K Sell
25,900
-26,100
-50% -$100K ﹤0.01% 2948
2014
Q2
$216K Sell
52,000
-15,800
-23% -$67.7K ﹤0.01% 2336
2014
Q1
$325K Buy
67,800
+33,100
+95% +$213K 0.01% 2023
2013
Q4
$224K Buy
34,700
+24,200
+230% +$152K ﹤0.01% 2328
2013
Q3
$70K Sell
10,500
-25,200
-71% -$137K ﹤0.01% 3298
2013
Q2
$158K Buy
+35,700
New +$173K ﹤0.01% 2386

Other funds holding CERS

Group One Trading's CERS Position: Q1 2026 in Review

Group One Trading reduced its Cerus (CERS) stake by 44% in Q1 2026, selling an estimated $20.7K and leaving 12,128 shares worth $22.1K. The position accounts for ﹤0.01% of the portfolio, ranked #5900.

Group One Trading first reported a position in CERS in Q3 2013 and has held it in 41 quarters since. The position peaked at $714K in Q4 2014. 168 funds tracked by Wall St. Rank hold CERS as of Q1 2026.

  • Group One Trading held 12,128 shares of Cerus worth $22.1K as of Q1 2026.
  • Group One Trading sold 9,516 Cerus shares in Q1 2026, an estimated $20.7K.
  • Cerus made up ﹤0.01% of Group One Trading's portfolio in Q1 2026, its #5900 holding.
  • Group One Trading first reported a position in Cerus in Q3 2013 and has held it in 41 quarters since.
  • Group One Trading's Cerus position peaked at $714K in Q4 2014.
  • 168 funds tracked by Wall St. Rank held Cerus as of Q1 2026.

Based on Group One Trading's 13F filing for Q1 2026, filed 13 May 2026.