Ecovyst Inc. (ECVT) ownership: Top institutional holder: Rubric Capital Management LP ($117.49M). Insider activity: Net Seller (2 buys, 18 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| Rubric Capital Management LP | 9136067.00 | $117.49M | 2026-03-31 |
| BlackRock, Inc. | 8734220.00 | $112.32M | 2026-03-31 |
| VANGUARD GROUP INC | 11112611.00 | $108.13M | 2025-12-31 |
| DIMENSIONAL FUND ADVISORS LP | 6498654.00 | $83.57M | 2026-03-31 |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | 5413862.00 | $69.62M | 2026-03-31 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5244406.00 | $67.44M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4977580.00 | $64.01M | 2026-03-31 |
| BROWN ADVISORY INC | 4842174.00 | $62.27M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-06-02 | |
| Sell | null | 2026-06-02 | |
| Sell | null | 2026-05-26 | |
| Sell | null | 2026-05-26 | |
| Sell | null | 2026-03-12 | |
| Sell | null | 2026-03-12 | |
| Sell | null | 2026-03-12 | |
| Sell | null | 2026-03-12 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.