Jeff Yass’s Ecovyst ECVT Stock Holding History

Jeff Yass’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	$3.56M	Buy	285,700 +178,000	+165%	+$2.41M	﹤0.01%	5280
2026 Q1	$1.39M	Buy	+107,700	New	+$1.22M	﹤0.01%	7090
2021 Q4	–	Sell	-21,200	Closed	-$247K	–	13263
2021 Q3	$247K	Buy	+21,200	New	+$289K	﹤0.01%	11035
2018 Q3	–	Sell	-12,500	Closed	-$225K	–	9427
2018 Q2	$225K	Sell	12,500 -5,900	-32%	-$92.2K	﹤0.01%	8386
2018 Q1	$257K	Buy	+18,400	New	+$276K	﹤0.01%	7883

Other funds holding ECVT

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 Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Brown Advisory Baltimore, Maryland $64.6B AUM 18.98% 1-Year Est. Return

American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Jeff Yass's ECVT Position: Q2 2026 in Review

Jeff Yass reduced its Ecovyst (ECVT) stake by 72% in Q2 2026, selling an estimated $689K and leaving 19,554 shares worth $243K. The position accounts for ﹤0.01% of the portfolio, ranked #11526.

Jeff Yass first reported a position in ECVT in Q4 2018 and has held it in 25 quarters since. The position peaked at $2.56M in Q3 2023. 207 funds tracked by Wall St. Rank hold ECVT as of Q2 2026.

Jeff Yass held 19,554 shares of Ecovyst worth $243K as of Q2 2026.
Jeff Yass sold 50,832 Ecovyst shares in Q2 2026, an estimated $689K.
Ecovyst made up ﹤0.01% of Jeff Yass's portfolio in Q2 2026, its #11526 holding.
Jeff Yass first reported a position in Ecovyst in Q4 2018 and has held it in 25 quarters since.
Jeff Yass's Ecovyst position peaked at $2.56M in Q3 2023.
207 funds tracked by Wall St. Rank held Ecovyst as of Q2 2026.

Based on Susquehanna International Group's 13F filing for Q2 2026, filed 14 Aug 2026.