Ecovyst Inc. (ECVT)
NYSE: ECVT · Chemicals & Allied Products · Wayne, PA · filing with the SEC since 2017
Grade4.7
◀ Past 3.3● Present 5.1▶ Future 5.4
Who owns Ecovyst Inc.
As filed with the SECHolders of 5% or more
5
Rubric Capital Management LP holds 9.09% of Common Stock, par value $0.01 per share, as its SCHEDULE 13G filed Nov 14, 2025 says.
Directors and officers
12
report now, of 37 people on the record since 2017. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 5 named at left.
Holders of 5% or moreshare of the class, as filed
Rubric Capital Management LP
SCHEDULE 13G · filed Nov 14, 2025 · Common Stock, par value $0.01 per share
Blackrock, Inc.
SCHEDULE 13G/A · filed Apr 24, 2026 · Common Stock
Dimensional Fund Advisors LP
SCHEDULE 13G/A · filed Jul 14, 2026 · Common Stock
Vanguard Portfolio Management
SCHEDULE 13G · filed Jul 31, 2026 · Common Stock
Vanguard Capital Management
SCHEDULE 13G · filed Apr 29, 2026 · Common Stock
Hotchkis and Wiley Capital Management, LLC
SCHEDULE 13G/A · filed May 8, 2026 · Common stock, par value $0.01 per share · reported falling below 5%, from 7.74% in Nov 14, 2025
The Vanguard Group
SCHEDULE 13G/A · filed Mar 26, 2026 · Common Stock · reported falling below 5%
INEOS Limited
SCHEDULE 13D/A · filed Jul 2, 2025 · Common Stock, par value $0.01 per share · reported falling below 5%
What ECVT reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Cornerstone Chemical Company LLC
A company bought · acquisition · Apr 2025 · owns, named in the 10-K filed Feb 27, 2026
7 subsidiaries in 1 country, from the list filed with the 10-K filed Feb 27, 2026.
Insider tradesForm 4
2sales
1purchases
0sales on a scheduled plan
2people selling
$200,000sold, in dollars
$200,000bought, in dollars
Open-market trades on Form 4 from Sep 30, 2025 to Sep 30, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Sep 30, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window3 of 52 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Lorance Sarah | director | 1 | $100,000 | 0 | 0 | $0 |
| Ward Susan F | director | 1 | $100,000 | 0 | 0 | $0 |
| Humble Patti A. | director | 0 | $0 | 0 | 1 | $200,000 |