Renaissance Technologies
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Renaissance Technologies’s Cytosorbents Corp CTSO Stock Holding History

Renaissance Technologies’s Portfolio CTSO Stock Details CTSO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q3 		– Sell
-5,001
Closed -$37.4K – 3260
2026
Q2 		$37.4K Sell
5,001
-35
-0.7% -$370 ﹤0.01% 3065
2026
Q1 		$57K Buy
5,036
+30
+0.6% +$409 ﹤0.01% 3099
2025
Q4 		$64K Sell
5,006
-1,734
-26% -$26.7K ﹤0.01% 3066
2025
Q3 		$126K Buy
6,740
+908
+16% +$17.9K ﹤0.01% 3225
2025
Q2 		$149K Sell
5,832
-5,431
-48% -$109K ﹤0.01% 3230
2025
Q1 		$225K Buy
11,263
+6,862
+156% +$145K ﹤0.01% 3044
2024
Q4 		$80.1K Buy
4,401
+420
+11% +$8.24K ﹤0.01% 3318
2024
Q3 		$119K Buy
3,981
+190
+5% +$4.17K ﹤0.01% 3229
2024
Q2 		$53.3K Sell
3,791
-190
-5% -$3.3K ﹤0.01% 3283
2024
Q1 		$76K Sell
3,981
-4,785
-55% -$93.1K ﹤0.01% 3417
2023
Q4 		$195K Buy
8,766
+2,811
+47% +$83.5K ﹤0.01% 3141
2023
Q3 		$224K Buy
5,955
+10
+0.2% +$574 ﹤0.01% 3048
2023
Q2 		$427K Buy
5,945
+15
+0.3% +$949 ﹤0.01% 2959
2023
Q1 		$400K Buy
5,930
+10
+0.2% +$600 ﹤0.01% 2992
2022
Q4 		$184K Sell
5,920
-3,970
-40% -$118K ﹤0.01% 3446
2022
Q3 		$269K Buy
9,890
+2,884
+41% +$113K ﹤0.01% 3256
2022
Q2 		$307K Buy
7,006
+2,761
+65% +$127K ﹤0.01% 3447
2022
Q1 		$271K Buy
+4,245
New +$304K ﹤0.01% 3514
2021
Q3 		– Sell
-7,005
Closed -$1.06M – 3531
2021
Q2 		$1.06M Sell
7,005
-1,995
-22% -$336K ﹤0.01% 2640
2021
Q1 		$1.56M Buy
9,000
+5,345
+146% +$1.02M ﹤0.01% 2379
2020
Q4 		$583K Sell
3,655
-1,145
-24% -$192K ﹤0.01% 2751
2020
Q3 		$766K Buy
+4,800
New +$866K ﹤0.01% 2644
2019
Q2 		– Sell
-1,940
Closed -$294K – 3571
2019
Q1 		$294K Sell
1,940
-4,145
-68% -$646K ﹤0.01% 3100
2018
Q4 		$983K Buy
+6,085
New +$1.21M ﹤0.01% 2577
2018
Q3 		– Sell
-11,515
Closed -$2.62M – 3372
2018
Q2 		$2.62M Buy
+11,515
New +$2.18M ﹤0.01% 2131

Other funds holding CTSO

Avenir Corporation
Avenir Corporation Alexandria, Virginia $812M AUM 0.44% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM
CM
CM Management Gulf Breeze, Florida $149M AUM 35.54% 1-Year Est. Return
Neuberger Berman Group
Neuberger Berman Group New York $148B AUM 31.56% 1-Year Est. Return
Skylands Capital
Skylands Capital Milwaukee, Wisconsin $762M AUM 14.92% 1-Year Est. Return
BlackRock
BlackRock New York $6.79T AUM 37.06% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Pathstone Holdings
Pathstone Holdings Englewood, New Jersey $36.2B AUM 20.53% 1-Year Est. Return
Sargent Investment Group
Sargent Investment Group Bethesda, Maryland $867M AUM 20.76% 1-Year Est. Return
Vanguard Fiduciary Trust
Vanguard Fiduciary Trust Malvern, Pennsylvania $463B AUM

Renaissance Technologies's CTSO Position: Q3 2026 in Review

Renaissance Technologies sold out of Cytosorbents Corp (CTSO) in Q3 2026, closing a stake of 5,001 shares — an estimated $37.4K sold.

Renaissance Technologies first reported a position in CTSO in Q2 2018 and held it in 25 quarters. The position peaked at $2.62M in Q2 2018. 25 funds tracked by Wall St. Rank hold CTSO as of Q3 2026.

  • Renaissance Technologies reported no remaining Cytosorbents Corp position as of Q3 2026 after selling out during the quarter.
  • Renaissance Technologies sold 5,001 Cytosorbents Corp shares in Q3 2026, an estimated $37.4K.
  • Renaissance Technologies first reported a position in Cytosorbents Corp in Q2 2018 and held it in 25 quarters.
  • Renaissance Technologies's Cytosorbents Corp position peaked at $2.62M in Q2 2018.
  • 25 funds tracked by Wall St. Rank held Cytosorbents Corp as of Q3 2026.

Based on Renaissance Technologies's 13F filing for Q3 2026, filed 12 Nov 2026.