$ECVT

$9.97 +$0.14 (1.42%) Close

$ECVT Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 109.5M shares outstanding

Who owns ECVT?

By type of holder

Institutions 99.9% Insiders 0.1% Everyone else 0.0%

Concentration Top 10 holders own 49.5%

BlackRock, Inc. 9.7% · Rubric Capital Management LP 7.5%

Institutional ownership

99.9%

-0.1 pts vs last qtr

Institutional holders

206

+8 vs last qtr

Net shares bought

−2.5M

by institutions in Q2 2026

New / sold out

48 / 40

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

AltraVue Capital, LLC NEW +2.0M
BlackRock, Inc. +1.9M

Biggest sellers in Q2 2026

Hotchkis & Wiley Capital Management LLC −4.0M
Oaktree Capital Management LP SOLD OUT −2.4M

Who is planning to sell?

Notices of proposed sale, last 12 months

$624K

3 notices from 2 people

Shares covered

53.3K

0.05% of the company

Arranged in advance

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Susan Ward Director $512K
Sarah J Lorance Director $113K

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2016–FY2025

+48.6%

+4.50% a year

Each share's claim on the business

−32.7%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

$267M vs $148M

over 10 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years49% 3–5 years12% 1–3 years18% Under 1 year21%

Quarterly turnover

20.0%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting ECVT on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	10.7M	9.74%	+1.9M (+22.1%)	≤2021	0.0%
Shares held by quarter Peak holding11.0M (Q4'24) Change over 8 quarters−112.6K Share of the company9.740% BlackRock, Inc.'s full portfolio →
RC Rubric Capital Management LP	8.2M	7.50%	−924.2K (−10.1%)	2025	0.9%
Shares held by quarter Peak holding10.5M (Q4'25) Change over 8 quarters+8.2M Share of the company7.500% Rubric Capital Management LP's full portfolio →

BlackRock, Inc.

10.7M

% of company

9.74%

Change vs last qtr

+1.9M (+22.1%)

Held since

≤2021

Rubric Capital Management LP

8.2M

% of company

7.50%

Change vs last qtr

−924.2K (−10.1%)

Held since

2025

28 more super investors behind a free account

See every manager holding Ecovyst Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting ECVT on Form N-PORT; together they hold 48.5% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$43.3M	3.5M	3.18%	0.00%	June 30, 2026
AU Avantis U.S. Small Cap Value ETF American Century ETF Trust	$36.6M	2.8M	2.53%	0.14%	May 31, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$43.3M

% of company

3.18%

% of the fund

0.00%

As of

June 30, 2026

Avantis U.S. Small Cap Value ETF

American Century ETF Trust

Position value

$36.6M

% of company

2.53%

% of the fund

0.14%

As of

May 31, 2026

23 more funds behind a free account

See every fund holding Ecovyst Inc. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
BK Bitting Kurt Insider	698.4K	0.64%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.640% Bitting Kurt's insider activity →
KJ Koscinski Joseph S. Insider	595.8K	0.54%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.540% Koscinski Joseph S.'s insider activity →

Bitting Kurt

Insider

698.4K

% of company

0.64%

Change vs last qtr

—

Held since

—

Koscinski Joseph S.

Insider

595.8K

% of company

0.54%

Change vs last qtr

—

Held since

—

12 more holders behind a free account

See every insider and 5%+ holder of Ecovyst Inc..

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