Renaissance Technologies’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
$1.05M Buy
578,900
+80,900
+16% +$176K ﹤0.01% 2246
2025
Q4
$1.03M Sell
498,000
-341,500
-41% -$592K ﹤0.01% 2264
2025
Q3
$1.33M Buy
839,500
+74,000
+10% +$99.9K ﹤0.01% 2332
2025
Q2
$1.08M Sell
765,500
-603,900
-44% -$805K ﹤0.01% 2480
2025
Q1
$1.9M Buy
1,369,400
+953,791
+229% +$1.6M ﹤0.01% 2028
2024
Q4
$640K Sell
415,609
-142,891
-26% -$246K ﹤0.01% 2730
2024
Q3
$972K Buy
558,500
+349,000
+167% +$733K ﹤0.01% 2464
2024
Q2
$369K Sell
209,500
-59,800
-22% -$107K ﹤0.01% 2825
2024
Q1
$509K Sell
269,300
-4,800
-2% -$9.79K ﹤0.01% 2859
2023
Q4
$592K Sell
274,100
-64,400
-19% -$106K ﹤0.01% 2711
2023
Q3
$548K Sell
338,500
-104,800
-24% -$218K ﹤0.01% 2666
2023
Q2
$1.09M Sell
443,300
-321,700
-42% -$764K ﹤0.01% 2418
2023
Q1
$2.27M Buy
765,000
+399,500
+109% +$1.2M ﹤0.01% 1948
2022
Q4
$1.33M Buy
365,500
+75,100
+26% +$283K ﹤0.01% 2348
2022
Q3
$1.04M Buy
290,400
+97,600
+51% +$467K ﹤0.01% 2471
2022
Q2
$1.02M Sell
192,800
-303,700
-61% -$1.52M ﹤0.01% 2702
2022
Q1
$2.73M Sell
496,500
-145,973
-23% -$808K ﹤0.01% 1994
2021
Q4
$4.38M Buy
642,473
+532,773
+486% +$3.59M 0.01% 1622
2021
Q3
$668K Sell
109,700
-312,762
-74% -$1.82M ﹤0.01% 2760
2021
Q2
$2.5M Buy
422,462
+221,325
+110% +$1.3M ﹤0.01% 2099
2021
Q1
$1.21M Sell
201,137
-157,563
-44% -$1.07M ﹤0.01% 2529
2020
Q4
$2.48M Buy
+358,700
New +$2.35M ﹤0.01% 1987
2020
Q1
Sell
-28,266
Closed -$119K 3464
2019
Q4
$119K Buy
+28,266
New +$122K ﹤0.01% 3290
2019
Q3
Sell
-57,341
Closed -$322K 3444
2019
Q2
$322K Sell
57,341
-203,859
-78% -$1.13M ﹤0.01% 3152
2019
Q1
$1.63M Buy
+261,200
New +$1.59M ﹤0.01% 2421
2018
Q4
Sell
-66,100
Closed -$477K 3393
2018
Q3
$477K Buy
+66,100
New +$480K ﹤0.01% 2861
2017
Q4
Sell
-560,214
Closed -$1.53M 3345
2017
Q3
$1.53M Buy
560,214
+480,114
+599% +$1.18M ﹤0.01% 2408
2017
Q2
$201K Sell
80,100
-12,400
-13% -$39.7K ﹤0.01% 2996
2017
Q1
$412K Buy
92,500
+10,500
+13% +$44.5K ﹤0.01% 2828
2016
Q4
$357K Buy
+82,000
New +$427K ﹤0.01% 2867
2016
Q3
Sell
-21,400
Closed -$134K 3336
2016
Q2
$134K Buy
21,400
+2,800
+15% +$16.7K ﹤0.01% 3120
2016
Q1
$110K Buy
+18,600
New +$103K ﹤0.01% 3199
2015
Q2
Sell
-136,000
Closed -$567K 3235
2015
Q1
$567K Buy
+136,000
New +$697K ﹤0.01% 2552
2013
Q3
Sell
-39,400
Closed -$174K 2818
2013
Q2
$174K Buy
+39,400
New +$191K ﹤0.01% 2543

Other funds holding CERS

Renaissance Technologies's CERS Position: Q1 2026 in Review

Renaissance Technologies increased its Cerus (CERS) stake by 16% in Q1 2026, buying an estimated $176K and bringing the position to 578,900 shares worth $1.05M. The position accounts for ﹤0.01% of the portfolio, ranked #2246.

Renaissance Technologies first reported a position in CERS in Q2 2013 and has held it in 34 quarters since. The position peaked at $4.38M in Q4 2021. 168 funds tracked by Wall St. Rank hold CERS as of Q1 2026.

  • Renaissance Technologies held 578,900 shares of Cerus worth $1.05M as of Q1 2026.
  • Renaissance Technologies bought 80,900 Cerus shares in Q1 2026, an estimated $176K.
  • Cerus made up ﹤0.01% of Renaissance Technologies's portfolio in Q1 2026, its #2246 holding.
  • Renaissance Technologies first reported a position in Cerus in Q2 2013 and has held it in 34 quarters since.
  • Renaissance Technologies's Cerus position peaked at $4.38M in Q4 2021.
  • 168 funds tracked by Wall St. Rank held Cerus as of Q1 2026.

Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.