Ecovyst Inc.
Ecovyst Inc. (ECVT) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · ECVT · as of Mar 31, 2025
Ownership Breakdown
165
Institutional Holders
▼ 6 vs Q4
$663.22M
Total Inst. Value
▼ $124.55M vs Q4
109.45M
Shares Outstanding
freeFloat 89.32%
106.99M
13F Shares Held
▲ 3.92M vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
ECVT largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC chemicals & allied products | 12.62M | 10.76% | 10.76% | $78.25B | May 14, 2025 | ▼ 507.4K |
VANGUARD GROUP INC chemicals & allied products | 10.83M | 9.23% | 9.23% | $67.12B | May 9, 2025 | ▼ 101.0K |
BLACKROCK, INC. chemicals & allied products | 10.42M | 8.89% | 8.89% | $64.62B | May 2, 2025 | ▼ 549.2K |
DIMENSIONAL FUND ADVISORS LP chemicals & allied products | 6.13M | 5.23% | 5.23% | $38.00B | May 13, 2025 | ▼ 67.0K |
SHAPIRO CAPITAL MANAGEMENT LLC chemicals & allied products | 4.97M | 4.24% | 4.24% | $30.81B | May 15, 2025 | ▲ 138.8K |
ALLSPRING GLOBAL INVESTMENTS HOLDINGS, LLC chemicals & allied products | 4.90M | 4.18% | 4.18% | $30.34B | Apr 24, 2025 | ▼ 185.0K |
MANGROVE PARTNERS chemicals & allied products | 4.54M | 3.87% | 3.87% | $28.14B | May 15, 2025 | NEW |
ALLIANCEBERNSTEIN L.P. chemicals & allied products | 4.46M | 3.80% | 3.80% | $27.62B | May 15, 2025 | ▼ 27.4K |
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC chemicals & allied products | 3.46M | 2.95% | 2.95% | $21.46B | May 9, 2025 | ▼ 140.0K |
MEDINA VALUE PARTNERS, LLC chemicals & allied products | 2.97M | 2.53% | 2.53% | $18.43B | May 14, 2025 | ▲ 230.0K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
24
Increased
+4.40M shares4
New Positions
first time holders20
Decreased
−5.18M shares0
Sold Out
fully exitedNet shares change (top 50)
784.3K
+4.40M / −5.18M
Net new holders
+8
4 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
ECVT insider trading · insider activity
Source: SEC Form 4
1
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Humble Patti A. director | May 26, 2026 | Award | 9,099 | $13.61 | $123.8K | 9.1K | Form 4 ↗ |
Feehan Michael See Remarks | Mar 4, 2026 | Award | 11,052 | $11.31 | $125.0K | 389.1K | Form 4 ↗ |
Koscinski Joseph S. See Remarks | Mar 4, 2026 | Award | 11,052 | $11.31 | $125.0K | 595.8K | Form 4 ↗ |
Bradley David A. director | Feb 3, 2026 | Award | 19,399 | — | — | 108.0K | Form 4 ↗ |
Fogarty Kevin Michael director | Feb 3, 2026 | Award | 38,798 | — | — | 216.0K | Form 4 ↗ |
Catalano Anna C director | Feb 3, 2026 | Award | 19,399 | — | — | 102.8K | Form 4 ↗ |
Lorance Sarah director | Feb 3, 2026 | Award | 19,399 | — | — | 63.1K | Form 4 ↗ |
Bitting Kurt See Remarks | Feb 3, 2026 | Award | 116,392 | — | — | 660.3K | Form 4 ↗ |
Bitting Kurt See Remarks | Feb 3, 2026 | Tax Withhold | 25,925 | $10.31 | $267.3K | 543.9K | Form 4 ↗ |
Ward Susan F director | Feb 3, 2026 | Award | 19,399 | — | — | 97.7K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Ecovyst Inc. (ECVT) is primarily owned by institutional investors, who hold approximately 97.8% of total shares outstanding. Company insiders own approximately 10.68%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Ecovyst Inc. is HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC, holding approximately 12.62 million shares — equal to 10.76% of outstanding shares — as of March 31, 2025.
A total of 165 institutional investors currently hold ECVT stock, with a combined institutional value of approximately $663,223,369 as of the most recent 13F filing period.
Frequently asked questions
ECVT ownershipEcovyst Inc. (ECVT) is primarily owned by institutional investors, who hold approximately 97.8% of shares. The largest shareholder is HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC with a 10.76% stake. Company insiders hold 10.68%. Data sourced from SEC Form 13F as of March 31, 2025.