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Stocks / Ecovyst Inc
Institutional Ownership

Ecovyst Inc

CUSIP 27923Q109COMECVTQ1 2026

13D / 13G Filings
14
Schedule 13D/13G on record
Beneficial Filers
8
Distinct reporting persons
Largest Stake
16.1%
Max % of class reported
Institutional Holders
188
13F filers (latest quarter)

Beneficial Owners — Schedule 13D / 13G

14 filings · latest Nov 14, 2025

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#FiledReporting PersonForm% of ClassSharesFiling
1Nov 14, 2025Hotchkis And Wiley Capital Management, LLC13G/A7.7%8.85MSEC
2Nov 14, 2025Rubric Capital Management LP13G9.1%10.40MSEC
3Aug 13, 2025Hotchkis And Wiley Capital Management, LLC13G/A9.6%11.22MSEC
4Nov 8, 2024Blackrock, Inc.13G/A9.3%10.78MSEC
5Oct 21, 2024Blackrock, Inc.13G/A9.3%10.78MSEC
6Sep 10, 2024Hotchkis & Wiley Capital Management LLC13G/A11.0%12.76MSEC
7Feb 13, 2024Hotchkis & Wiley Capital Management LLC13G5.7%6.66MSEC
8Feb 13, 2024Vanguard Group Inc13G/A9.2%10.70MSEC
9Feb 12, 2024Ccmp Capital Investors III, L.P.13G/A——SEC
10Feb 9, 2024Dimensional Fund Advisors LP13G5.0%5.82MSEC

4 more beneficial-ownership filings on Premium

See the full Schedule 13D/13G history for Ecovyst Inc.

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Top Institutional Holders (13F)

Largest reported positions · latest quarter

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#FundSharesValue
1Rubric Capital Management LP9.14M$117.49M
2Blackrock, Inc.8.73M$112.32M
3Dimensional Fund Advisors LP6.50M$83.57M
4Hotchkis & Wiley Capital Management LLC5.41M$69.62M
5Brown Advisory Inc4.84M$62.27M
6Arrowstreet Capital, Limited Partnership4.83M$62.10M
7Fmr LLC4.47M$57.45M
8Allspring Global Investments Holdings, LLC3.80M$49.83M
9Brightline Capital Management, LLC2.80M$36.01M
10Geode Capital Management, LLC2.76M$35.54M