Renaissance Technologies
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Renaissance Technologies’s Ecovyst ECVT Stock Holding History

Renaissance Technologies’s Portfolio ECVT Stock Details ECVT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$3.94M Buy
306,700
+76,600
+33% +$865K 0.01% 1506
2025
Q4 		$2.24M Sell
230,100
-10,600
-4% -$92.5K ﹤0.01% 1794
2025
Q3 		$2.11M Sell
240,700
-7,900
-3% -$69.6K ﹤0.01% 2039
2025
Q2 		$2.05M Sell
248,600
-34,100
-12% -$239K ﹤0.01% 2091
2025
Q1 		$1.75M Sell
282,700
-109,300
-28% -$809K ﹤0.01% 2088
2024
Q4 		$2.99M Sell
392,000
-114,400
-23% -$845K ﹤0.01% 1778
2024
Q3 		$3.47M Buy
506,400
+167,000
+49% +$1.27M 0.01% 1679
2024
Q2 		$3.04M Buy
339,400
+35,000
+11% +$338K 0.01% 1601
2024
Q1 		$3.39M Sell
304,400
-21,700
-7% -$205K 0.01% 1674
2023
Q4 		$3.19M Sell
326,100
-43,600
-12% -$415K ﹤0.01% 1645
2023
Q3 		$3.64M Sell
369,700
-33,600
-8% -$359K 0.01% 1480
2023
Q2 		$4.62M Buy
403,300
+99,800
+33% +$1.09M 0.01% 1467
2023
Q1 		$3.35M Sell
303,500
-7,000
-2% -$72.4K ﹤0.01% 1709
2022
Q4 		$2.75M Buy
310,500
+129,400
+71% +$1.19M ﹤0.01% 1881
2022
Q3 		$1.53M Buy
181,100
+79,900
+79% +$760K ﹤0.01% 2220
2022
Q2 		$997K Sell
101,200
-173,500
-63% -$1.8M ﹤0.01% 2720
2022
Q1 		$3.18M Buy
274,700
+88,042
+47% +$923K ﹤0.01% 1879
2021
Q4 		$1.91M Buy
+186,658
New +$2.04M ﹤0.01% 2185
2021
Q3 		– Sell
-197,384
Closed -$3.03M – 3550
2021
Q2 		$3.03M Buy
+197,384
New +$3.12M ﹤0.01% 1965
2020
Q4 		– Sell
-130,000
Closed -$1.33M – 3450
2020
Q3 		$1.33M Buy
130,000
+79,000
+155% +$964K ﹤0.01% 2348
2020
Q2 		$675K Sell
51,000
-84,200
-62% -$989K ﹤0.01% 2751
2020
Q1 		$1.47M Sell
135,200
-44,200
-25% -$614K ﹤0.01% 2218
2019
Q4 		$3.08M Buy
179,400
+21,200
+13% +$340K ﹤0.01% 2110
2019
Q3 		$2.52M Buy
158,200
+49,000
+45% +$750K ﹤0.01% 2161
2019
Q2 		$1.73M Buy
109,200
+52,100
+91% +$820K ﹤0.01% 2402
2019
Q1 		$866K Buy
+57,100
New +$875K ﹤0.01% 2729
2018
Q4 		– Sell
-72,000
Closed -$1.26M – 3427
2018
Q3 		$1.26M Buy
+72,000
New +$1.28M ﹤0.01% 2511

Other funds holding ECVT

RCMNY
Rubric Capital Management (New York) New York $9.44B AUM 68.42% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Hotchkis & Wiley Capital Management
Hotchkis & Wiley Capital Management Los Angeles, California $32.4B AUM 17.21% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Brown Advisory
Brown Advisory Baltimore, Maryland $60.9B AUM 15.24% 1-Year Est. Return
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $185B AUM 39.58% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Allspring Global Investments
Allspring Global Investments Charlotte, North Carolina $59.7B AUM 29.08% 1-Year Est. Return

Renaissance Technologies's ECVT Position: Q1 2026 in Review

Renaissance Technologies increased its Ecovyst (ECVT) stake by 33% in Q1 2026, buying an estimated $865K and bringing the position to 306,700 shares worth $3.94M. The position accounts for 0.01% of the portfolio, ranked #1506.

Renaissance Technologies first reported a position in ECVT in Q3 2018 and has held it in 27 quarters since. The position peaked at $4.62M in Q2 2023. 197 funds tracked by Wall St. Rank hold ECVT as of Q1 2026.

  • Renaissance Technologies held 306,700 shares of Ecovyst worth $3.94M as of Q1 2026.
  • Renaissance Technologies bought 76,600 Ecovyst shares in Q1 2026, an estimated $865K.
  • Ecovyst made up 0.01% of Renaissance Technologies's portfolio in Q1 2026, its #1506 holding.
  • Renaissance Technologies first reported a position in Ecovyst in Q3 2018 and has held it in 27 quarters since.
  • Renaissance Technologies's Ecovyst position peaked at $4.62M in Q2 2023.
  • 197 funds tracked by Wall St. Rank held Ecovyst as of Q1 2026.

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