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
AIM
SCM
BBA
VCM
WA
NAMA
SAM
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.