Marshall Wace
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Marshall Wace’s Ecovyst ECVT Stock Holding History

Marshall Wace’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
Q2 		$511K Buy
41,034
+26,334
+179% +$357K ﹤0.01% 2510
2026
Q1 		$189K Buy
+14,700
New +$166K ﹤0.01% 2799
2025
Q1 		– Sell
-29,000
Closed -$222K – 2730
2024
Q4 		$222K Buy
29,000
+5,500
+23% +$40.6K ﹤0.01% 2322
2024
Q3 		$161K Sell
23,500
-123,886
-84% -$944K ﹤0.01% 2321
2024
Q2 		$1.32M Buy
+147,386
New +$1.43M ﹤0.01% 1558
2024
Q1 		– Sell
-39,717
Closed -$388K – 2532
2023
Q4 		$388K Sell
39,717
-482,761
-92% -$4.6M ﹤0.01% 1804
2023
Q3 		$5.14M Sell
522,478
-1,654,409
-76% -$17.7M 0.01% 853
2023
Q2 		$24.9M Buy
2,176,887
+1,232,608
+131% +$13.4M 0.05% 403
2023
Q1 		$10.4M Sell
944,279
-515,096
-35% -$5.33M 0.02% 696
2022
Q4 		$12.9M Buy
1,459,375
+613,447
+73% +$5.65M 0.03% 672
2022
Q3 		$7.14M Buy
+845,928
New +$8.04M 0.02% 1127
2022
Q1 		– Sell
-34,420
Closed -$352K – 3497
2021
Q4 		$352K Buy
+34,420
New +$377K ﹤0.01% 2964
2020
Q4 		– Sell
-88,109
Closed -$904K – 1939
2020
Q3 		$904K Buy
+88,109
New +$1.07M 0.01% 1060
2020
Q2 		– Sell
-26,391
Closed -$288K – 1643
2020
Q1 		$288K Buy
+26,391
New +$367K ﹤0.01% 1105
2019
Q4 		– Sell
-1,517
Closed -$24K – 1780
2019
Q3 		$24K Buy
+1,517
New +$23.2K ﹤0.01% 1587

Other funds holding ECVT

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
RCMNY
Rubric Capital Management (New York) New York $10.9B AUM 70.31% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Brown Advisory
Brown Advisory Baltimore, Maryland $64.6B AUM 18.98% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Marshall Wace's ECVT Position: Q2 2026 in Review

Marshall Wace increased its Ecovyst (ECVT) stake by 179% in Q2 2026, buying an estimated $357K and bringing the position to 41,034 shares worth $511K. The position accounts for ﹤0.01% of the portfolio, ranked #2510.

Marshall Wace first reported a position in ECVT in Q3 2019 and has held it in 15 quarters since. The position peaked at $24.9M in Q2 2023. 209 funds tracked by Wall St. Rank hold ECVT as of Q2 2026.

  • Marshall Wace held 41,034 shares of Ecovyst worth $511K as of Q2 2026.
  • Marshall Wace bought 26,334 Ecovyst shares in Q2 2026, an estimated $357K.
  • Ecovyst made up ﹤0.01% of Marshall Wace's portfolio in Q2 2026, its #2510 holding.
  • Marshall Wace first reported a position in Ecovyst in Q3 2019 and has held it in 15 quarters since.
  • Marshall Wace's Ecovyst position peaked at $24.9M in Q2 2023.
  • 209 funds tracked by Wall St. Rank held Ecovyst as of Q2 2026.

Based on Marshall Wace's 13F filing for Q2 2026, filed 13 Aug 2026.