Ecovyst Inc.

ECVTNYSE

$10.31-0.06 (-0.58% today)

Legend

Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

Ecovyst Inc. price and activity chart data

Showing the 1Y range: Oct 7, 2025 to Oct 7, 2026. Price (+24.2%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
BlackRock, Inc.	9.74%	$133M	0.00%	Not reported
Rubric Capital Management LP	7.50%	$102M	0.94%	Not reported
Dimensional Fund Advisors LP	6.02%	$82M	0.01%	Not reported
Vanguard Portfolio Management LLC	5.56%	$75.8M	0.00%	Not reported
FMR LLC	4.87%	$66.4M	0.00%	Not reported
Arrowstreet Capital, Limited Partnership	4.69%	$63.9M	0.03%	Not reported
Vanguard Capital Management LLC	4.42%	$60.3M	0.00%	Not reported
Brown Advisory Inc	4.14%	$56.4M	0.09%	Not reported
American Century Companies Inc	3.17%	$43.3M	0.02%	Not reported
Geode Capital Management, LLC	2.88%	$39.2M	0.00%	Not reported
Brightline Capital Management, LLC	2.75%	$37.5M	8.13%	Add 7.57%
State Street Corp	2.44%	$33.3M	0.00%	Not reported
Goldman Sachs Group Inc	2.39%	$32.6M	0.00%	Not reported
Ameriprise Financial Inc	2.04%	$27.8M	0.01%	Not reported
First Wilshire Securities Management Inc	1.98%	$27M	5.57%	Reduce 1.16%
AltraVue Capital, LLC	1.83%	$25M	1.80%	Not reported
Charles Schwab Investment Management Inc	1.73%	$23.6M	0.00%	Not reported
Qube Research & Technologies Ltd	1.52%	$20.7M	0.02%	Not reported
Hotchkis & Wiley Capital Management LLC	1.28%	$17.5M	0.05%	Reduce 74.06%
Morgan Stanley	1.03%	$14.1M	0.00%	Not reported
Needham Investment Management LLC	0.93%	$12.7M	0.38%	Not reported
Loomis Sayles & Co L P	0.93%	$12.6M	0.02%	Reduce 17.25%
Northern Trust Corp	0.90%	$12.2M	0.00%	Not reported
Healthcare of Ontario Pension Plan Trust Fund	0.86%	$11.7M	0.02%	New Not reported
JPMorgan Chase & Co	0.85%	$11.5M	0.00%	Not reported
NewEdge Advisors, LLC	0.82%	$11.1M	0.03%	Not reported
Allianz Asset Management GmbH	0.82%	$11.1M	0.01%	Not reported
William Blair Investment Management, LLC	0.79%	$10.7M	0.03%	Reduce 53.85%
Bridgeway Capital Management, LLC	0.77%	$10.6M	0.19%	Not reported
Vanguard Fiduciary Trust Co	0.71%	$9.63M	0.00%	Not reported
Bank of America Corp	0.53%	$7.27M	0.00%	Not reported
Empowered Funds, LLC	0.53%	$7.16M	0.04%	Add 1.53%
Ballast Asset Management, LP	0.50%	$6.84M	2.73%	Reduce 0.99%
Apis Capital Advisors, LLC	0.49%	$6.72M	0.65%	New Not reported
Prudential Financial Inc	0.47%	$6.42M	0.01%	Not reported
Victory Capital Management Inc	0.46%	$6.24M	0.00%	Not reported
CastleKnight Management LP	0.43%	$5.9M	0.08%	Add 28.98%
Sei Investments Co	0.43%	$5.88M	0.01%	Not reported
Legato Capital Management LLC	0.43%	$5.85M	0.49%	Not reported
UniSuper Management Pty Ltd	0.42%	$5.7M	0.03%	New Not reported
Citadel Advisors LLC	0.40%	$5.47M	0.00%	Not reported
New York State Common Retirement Fund	0.40%	$5.47M	0.01%	Not reported
Trexquant Investment LP	0.38%	$5.24M	0.03%	Not reported
Kestrel Investment Management Corp	0.37%	$5.05M	2.75%	Not reported
Tiptree Advisors, LLC	0.37%	$4.98M	3.08%	Add 23.08%
Bank of New York Mellon Corp	0.36%	$4.94M	0.00%	Not reported
Invesco Ltd.	0.35%	$4.75M	0.00%	Not reported
ExodusPoint Capital Management, LP	0.33%	$4.51M	0.03%	Not reported
D. E. Shaw & Co., Inc.	0.32%	$4.38M	0.00%	Not reported
Two Sigma Investments, LP	0.30%	$4.11M	0.00%	Not reported

50 of 195 holders

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