Insider Transactions Reported by 21 Insiders of Ecovyst Inc.

Symbol: ECVT on NYSE
Location: Wayne, PA

Quick Takeaways

ECVT - Ecovyst Inc. has 21 insiders with reported activity on this page.
Net insider value flow over the last year: -$126,018.
Recent transaction rows are available for direct filing-level review.

What Changed

Buy value: ; sell value: $126,018.
Net share flow: -15,000.

Why This Matters

This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.

Source Evidence

Filed on Form 4

Issuer insider activity is sourced from SEC Forms 3, 4, and 5.

See Original Filing

Insider trading overview

Last 12 months

Net insider flow leans to selling over the last 12 months. Net value: -$126,018.

Buys

Shares: 0

Insiders: 0

Sells

$126,018

Shares: 15,000

Insiders: 1

Net

-$126,018

Shares: -15,000

Insiders: -1

Window (months)	Sell shares	Buy $	Sell $	Net $
0-3	0	$0	$0	$0
3-6	15,000	$0	$126,018	-$126,018
6-9	0	$0	$0	$0
9-12	0	$0	$0	$0

Ecovyst Inc. executives and other stock owners filed with the SEC include:

Name	Relationship	Holdings Value	Past Year Net Change	Change %	Valuation	Report Date
INEOS Ltd	Former 10% Owner	$101,518,902			Mixed	26 May 2023
Belgacem Chariag	Chairman of the Board, Chief Executive Officer and President, Director	$11,696,845			Mixed	01 Mar 2022
William J. Sichko Jr.	Vice President and Chief Administrative Officer	$10,238,529			Mixed	04 Aug 2022
Kurt Bitting	Director and Chief Executive Officer, Director	$8,143,134			Mixed	12 Mar 2026
Joseph S. Koscinski	Vice President, Chief Administrative Officer, General Counsel and Secretary	$6,946,841			Mixed	04 Mar 2026
Michael Feehan	Vice President and Chief Financial Officer	$4,536,567			Mixed	04 Mar 2026
Thomas Schneberger	President	$3,249,819			Mixed	04 Aug 2022
Kevin Michael Fogarty	Director	$2,490,860			Mixed	03 Feb 2026
Robert Coxon	Director	$2,115,445			Mixed	22 Jan 2024
Kyle D. Vann	Director	$1,939,499			Mixed	22 Jan 2024
Jonny Ginns	Director	$1,828,098			Mixed	07 Dec 2022
David A. Bradley	Director	$1,245,430			Mixed	03 Feb 2026
Bryan K. Brown	Director	$1,060,715			Mixed	03 Feb 2026
Anna C. Catalano	Director	$1,000,292			Mixed	03 Feb 2026
Martin S. Craighead	Director	$958,989			Mixed	17 Jan 2022
Susan F. Ward	Director	$950,231	-$126,018	-12%	Mixed	03 Feb 2026
Sarah Lorance	Director	$614,449			Mixed	03 Feb 2026
Paul Whittleston	President, Advanced Materials & Catalysts	$579,862			Mixed	03 Feb 2025
Donald L. Althoff	Director	$567,998			Mixed	03 Feb 2026
George L. Vann Jr.	President, Ecoservices	$554,645			Mixed	03 Feb 2025
CCMP Capital, LP	10%+ Owner				Mixed	07 Mar 2023

Top shareholders of Ecovyst Inc. (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
BlackRock, Inc.	13D/G 13F	Company	7.7%	8,526,153	$109,646,328	$0	31 Mar 2026	13D/G 13F
VANGUARD GROUP INC	13F	Company	10%	11,112,611	$108,125,705	—	31 Dec 2025	13F
Rubric Capital Management LP	13F 13D/G	Company	9.1% from 13D/G	10,500,000	$102,165,000	—	31 Dec 2025	13F 13D/G
INEOS Ltd	3/4/5	Former 10% Owner	— class O/S missing	10,731,385	$101,518,902	—	26 May 2023	3/4/5
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC	13F 13D/G	Company · Hotchkis and Wiley Capital Management, LLC	7.7% from 13D/G	9,568,392	$93,100,454	—	31 Dec 2025	13F 13D/G
VANGUARD CAPITAL MANAGEMENT LLC	13D/G	Vanguard Capital Management	5.2%	5,814,039	$74,768,542	$0	31 Mar 2026	13D/G
DIMENSIONAL FUND ADVISORS LP	13F	Company	5.8%	6,387,278	$62,149,494	—	31 Dec 2025	13F
MANGROVE PARTNERS IM, LLC	13F	Company	4.9%	5,447,873	$53,007,804	—	31 Dec 2025	13F
BROWN ADVISORY INC	13F	Company	4.5%	5,024,810	$48,891,400	—	31 Dec 2025	13F
OAKTREE CAPITAL MANAGEMENT LP	13F	Company	3.8%	4,254,503	$41,396,314	—	31 Dec 2025	13F
Allspring Global Investments Holdings, LLC	13F	Company	3.7%	4,127,390	$40,902,435	—	31 Dec 2025	13F
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	13F	Company	2.5%	2,728,749	$26,550,728	—	31 Dec 2025	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	2.4%	2,677,764	$26,058,836	—	31 Dec 2025	13F
STATE STREET CORP	13F	Company	2.3%	2,543,242	$24,745,745	—	31 Dec 2025	13F
SHAPIRO CAPITAL MANAGEMENT LLC	13F	Company	2.1%	2,279,592	$22,180,430	—	31 Dec 2025	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	2.1%	2,271,907	$22,105,655	—	31 Dec 2025	13F
Medina Value Partners, LLC	13F	Company	2%	2,192,017	$21,328,325	—	31 Dec 2025	13F
FIRST WILSHIRE SECURITIES MANAGEMENT INC	13F	Company	2%	2,174,934	$21,162,108	—	31 Dec 2025	13F
AMERIPRISE FINANCIAL INC	13F	Company	1.9%	2,153,679	$20,955,296	—	31 Dec 2025	13F
BRIGHTLINE CAPITAL MANAGEMENT, LLC	13F	Company	1.9%	2,050,000	$19,946,500	—	31 Dec 2025	13F
Invenomic Capital Management LP	13F	Company	1.7%	1,906,840	$18,553,553	—	31 Dec 2025	13F
Owls Nest Partners IA, LLC	13F	Company	1.6%	1,826,120	$17,768,148	—	31 Dec 2025	13F
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	13F	Company	1.3%	1,393,092	$13,554,785	—	31 Dec 2025	13F
THOMPSON SIEGEL & WALMSLEY LLC	13F	Company	1.2%	1,366,711	$13,298,000	—	31 Dec 2025	13F
Point72 Asset Management, L.P.	13F	Company	1.2%	1,282,667	$12,480,350	—	31 Dec 2025	13F
LOOMIS SAYLES & CO L P	13F	Company	1.1%	1,268,450	$12,342,018	—	31 Dec 2025	13F
Belgacem Chariag	3/4/5	Chairman of the Board, Chief Executive Officer and President, Director	— class O/S missing	1,236,453	$11,696,845	—	01 Mar 2022	3/4/5
William J. Sichko Jr.	3/4/5	Vice President and Chief Administrative Officer	— class O/S missing	1,082,297	$10,238,529	—	04 Aug 2022	3/4/5
NEEDHAM INVESTMENT MANAGEMENT LLC	13F	Company	0.92%	1,020,000	$9,924,600	—	31 Dec 2025	13F
NORTHERN TRUST CORP	13F	Company	0.83%	913,916	$8,892,403	—	31 Dec 2025	13F
NewEdge Advisors, LLC	13F	Company	0.81%	895,364	$8,711,892	—	31 Dec 2025	13F
Kurt Bitting	3/4/5	Director and Chief Executive Officer, Director	0.63%	698,382	$8,143,134	—	12 Mar 2026	3/4/5
GOLDMAN SACHS GROUP INC	13F	Company	0.75%	828,289	$8,059,252	—	31 Dec 2025	13F
BRIGADE CAPITAL MANAGEMENT, LP	13F	Company	0.74%	817,255	$7,951,891	—	31 Dec 2025	13F
BRIDGEWAY CAPITAL MANAGEMENT, LLC	13F	Company	0.73%	808,547	$7,867,162	—	31 Dec 2025	13F
MORGAN STANLEY	13F	Company	0.68%	756,208	$7,357,913	—	31 Dec 2025	13F
Joseph S. Koscinski	3/4/5	Vice President, Chief Administrative Officer, General Counsel and Secretary	0.54%	595,784	$6,946,841	—	04 Mar 2026	3/4/5
BANK OF AMERICA CORP /DE/	13F	Company	0.62%	682,184	$6,637,651	—	31 Dec 2025	13F
AMERICAN CENTURY COMPANIES INC	13F	Company	0.56%	616,504	$5,998,584	—	31 Dec 2025	13F
HARBOR CAPITAL ADVISORS, INC.	13F	Company	0.53%	584,647	$5,689,000	—	31 Dec 2025	13F
Ballast Asset Management, LP	13F	Company	0.49%	540,845	$5,262,422	—	31 Dec 2025	13F
STATE OF WISCONSIN INVESTMENT BOARD	13F	Company	0.48%	535,412	$5,209,559	—	31 Dec 2025	13F
Empowered Funds, LLC	13F	Company	0.47%	521,672	$5,075,869	—	31 Dec 2025	13F
SEI INVESTMENTS CO	13F	Company	0.47%	520,169	$5,061,244	—	31 Dec 2025	13F
Allianz Asset Management GmbH	13F	Company	0.47%	519,210	$5,051,913	—	31 Dec 2025	13F
Michael Feehan	3/4/5	Vice President and Chief Financial Officer	0.35%	389,071	$4,536,567	—	04 Mar 2026	3/4/5
JPMORGAN CHASE & CO	13F	Company	0.41%	456,992	$4,446,532	—	31 Dec 2025	13F
FMR LLC	13F	Company	0.39%	436,071	$4,242,970	—	31 Dec 2025	13F
KESTREL INVESTMENT MANAGEMENT CORP	13F	Company	0.37%	407,600	$3,965,000	—	31 Dec 2025	13F
Forest Hill Capital, LLC	13F	Company	0.35%	391,900	$3,813,187	—	31 Dec 2025	13F

Recent Insider Transactions by Companies or Individuals for Ecovyst Inc.

Showing up to 300 most recent insider transactions from the last 12 months.

Insider	Symbol	Class	Transaction	%	Value $	* Price $	Shares	Shares Owned	Date	Ownership
Kurt Bitting	ECVT	Common Stock	Options Exercise	5.76%			38,064	698,382	12 Mar 2026	Direct
Kurt Bitting	ECVT	Option (Right to Buy)	Options Exercise	-100%			-38,064	0	12 Mar 2026	Direct
Michael Feehan	ECVT	Common Stock	Award	2.92%			11,052	389,071	04 Mar 2026	Direct
Joseph S. Koscinski	ECVT	Common Stock	Award	1.89%			11,052	595,784	04 Mar 2026	Direct
Sarah Lorance	ECVT	Common Stock	Award	44.3%			19,399	63,150	03 Feb 2026	Direct
Kurt Bitting	ECVT	Common Stock	Award	21.4%			116,392	660,318	03 Feb 2026	Direct
Kurt Bitting	ECVT	Common Stock	Tax liability	-4.55%			-25,925	543,926	03 Feb 2026	Direct
Susan F. Ward	ECVT	Common Stock	Award	24.8%			19,399	97,660	03 Feb 2026	Direct
Joseph S. Koscinski	ECVT	Common Stock	Award	4.87%			27,158	584,732	03 Feb 2026	Direct
Donald L. Althoff	ECVT	Common Stock	Award	49.8%			19,399	58,376	03 Feb 2026	Direct
Michael Feehan	ECVT	Common Stock	Award	5.41%			19,399	378,019	03 Feb 2026	Direct
Michael Feehan	ECVT	Common Stock	Tax liability	-1.33%			-4,834	358,620	03 Feb 2026	Direct
Bryan K. Brown	ECVT	Common Stock	Award	21.6%			19,399	109,015	03 Feb 2026	Direct
Kevin M. Fogarty	ECVT	Common Stock	Award	21.9%			38,798	215,998	03 Feb 2026	Direct
David A. Bradley	ECVT	Common Stock	Award	21.9%			19,399	107,999	03 Feb 2026	Direct
Anna C. Catalano	ECVT	Common Stock	Award	23.3%			19,399	102,805	03 Feb 2026	Direct
Michael Feehan	ECVT	Common Stock	Tax liability	-1.15%			-4,246	363,454	22 Jan 2026	Direct
Kurt Bitting	ECVT	Common Stock	Tax liability	-2.74%			-16,053	569,851	22 Jan 2026	Direct
Kurt Bitting	ECVT	Common Stock	Tax liability	-2.67%			-16,097	585,904	05 Jan 2026	Direct
Michael Feehan	ECVT	Common Stock	Tax liability	-1.67%			-6,231	367,700	05 Jan 2026	Direct
Susan F. Ward	ECVT	Common Stock	Sale	-16.1%	$126,018	$8.40	-15,000	78,261	07 Nov 2025	Direct

* An asterisk sign (*) next to the price indicates that the price is likely invalid.