209 institutional investment managers reported ECVT positions in their Form 13F filings for Q2 2026, holding 109,803,405 shares worth $1.4B in total. BlackRock, Inc. reported the largest position.

Are funds buying or selling ECVT?

In Q2 2026, 48 managers opened new ECVT positions, 74 added, 54 trimmed and 36 sold out. Managers that filed in both quarters sold a net 2,024,468 shares.

How current is this ECVT institutional ownership data?

It covers holdings as of the end of Q2 2026. Managers have 45 days after the quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.

Funds · ECVT

Who owns ECVT?

Institutional ownership of Ecovyst Inc. from Form 13F, Q2 2026

209 institutional managers reported holding Ecovyst Inc. (ECVT) in Form 13F filings for Q2 2026, with 109,803,405 shares worth $1.4B. The largest reported holder was BlackRock, Inc. Managers that filed both quarters cut a net 2,024,468 shares (-1.8%). 48 opened new positions and 36 sold out.

Funds holding: 209
Value held: $1.4B
New / sold out: 48 / 36
Net shares, same filers: -1.8%

Holdings as of June 30, 2026, the end of Q2 2026. Managers have 45 days after a quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.

Largest holders of ECVT

Fund	Value	Share of 13F holdings	Shares	Move
BlackRock, Inc.	$133M	9.7%	10,666,032	Added
Rubric Capital Management LP	$102M	7.5%	8,211,888	Trimmed
Dimensional Fund Advisors LP	$82.0M	6.0%	6,585,047	Added
Vanguard Portfolio Management LLC	$75.8M	5.5%	6,090,922	Added
FMR LLC	$66.4M	4.9%	5,333,701	Added
Arrowstreet Capital, Limited Partnership	$63.9M	4.7%	5,132,947	Added
Vanguard Capital Management LLC	$60.3M	4.4%	4,843,861	Trimmed
Brown Advisory Inc	$56.4M	4.1%	4,533,515	Trimmed
American Century Companies Inc	$43.3M	3.2%	3,474,853	Added
Geode Capital Management, LLC	$39.2M	2.9%	3,149,827	Added
Brightline Capital Management, LLC	$37.5M	2.7%	3,012,000	Added
State Street Corp	$33.3M	2.4%	2,675,032	Added
Goldman Sachs Group Inc	$32.6M	2.4%	2,621,153	Added
Ameriprise Financial Inc	$27.8M	2.0%	2,229,504	Added
First Wilshire Securities Management Inc	$27.0M	2.0%	2,171,238	Trimmed
AltraVue Capital, LLC	$25.0M	1.8%	2,008,430	New
Charles Schwab Investment Management Inc	$23.6M	1.7%	1,898,885	Trimmed
Qube Research & Technologies Ltd	$20.7M	1.5%	1,663,145	New
Hotchkis & Wiley Capital Management LLC	$17.5M	1.3%	1,404,452	Trimmed
Allspring Global Investments Holdings, LLC	$16.9M	1.3%	1,408,019	Trimmed
Morgan Stanley	$14.1M	1.0%	1,130,194	Added
Needham Investment Management LLC	$12.7M	0.9%	1,020,000	Unchanged
Loomis Sayles & Co L P	$12.6M	0.9%	1,013,758	Trimmed
Northern Trust Corp	$12.2M	0.9%	980,058	Added
Healthcare of Ontario Pension Plan Trust Fund	$11.7M	0.9%	942,306	New

Share of 13F holdings is each fund's shares as a share of the 109,803,405 ECVT shares all 13F filers reported, not of shares outstanding.

Biggest buyers in Q2 2026

AltraVue Capital, LLC New+$25.0M
BlackRock, Inc. Added+$24.1M
Qube Research & Technologies Ltd New+$20.7M
American Century Companies Inc Added+$18.0M
Goldman Sachs Group Inc Added+$15.1M
Healthcare of Ontario Pension Plan Trust Fund New+$11.7M
FMR LLC Added+$10.8M
Vanguard Portfolio Management LLC Added+$10.5M
Apis Capital Advisors, LLC New+$6.7M
HRT Financial LP New+$6.7M

Biggest sellers in Q2 2026

Hotchkis & Wiley Capital Management LLC Trimmed-$49.9M
Oaktree Capital Management LP Sold out-$30.8M
Allspring Global Investments Holdings, LLC Trimmed-$28.7M
Driehaus Capital Management LLC Sold out-$17.4M
Owls Nest Partners IA, LLC Trimmed-$14.7M
William Blair Investment Management, LLC Trimmed-$12.5M
Point72 Asset Management, L.P. Trimmed-$12.0M
Rubric Capital Management LP Trimmed-$11.5M
Brigade Capital Management, LP Sold out-$10.5M
Congruence Capital, LLC Sold out-$10.5M

The change in shares since the quarter before, adjusted for stock splits and priced at the Q2 2026 value per share. Funds bought $268M and sold $295M; 74 added and 54 trimmed.

Schedule 13D and 13G filings on ECVT

Owners of more than 5% must file within days, so these can be newer than the 13F data.

2026-11-05FMR LLC SCHEDULE 13G filed by Ecovyst Inc.Schedule 13G
2025-11-14Rubric Capital Management LP SCHEDULE 13G filed by Ecovyst Inc.Schedule 13G

Questions about ECVT ownership

Who owns ECVT stock?: 209 institutional investment managers reported ECVT positions in their Form 13F filings for Q2 2026, holding 109,803,405 shares worth $1.4B in total. BlackRock, Inc. reported the largest position.
Are funds buying or selling ECVT?: In Q2 2026, 48 managers opened new ECVT positions, 74 added, 54 trimmed and 36 sold out. Managers that filed in both quarters sold a net 2,024,468 shares.
How current is this ECVT institutional ownership data?: It covers holdings as of the end of Q2 2026. Managers have 45 days after the quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.

From the SEC's Form 13F data sets for Q2 2026: every 13F holdings report, matched to ECVT by CUSIP. Options are left out. ECVT news and filings · ECVT insider trades · Top funds