SEC Form 4 · accession 0001708035-26-000099
Ecovyst Inc. · ECVT
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Patti A. Humble
Director
Period of report
Sep 10, 2026
Accepted (ET)
Sep 14, 2026 · 4:00 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001708035
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock | Sep 10, 2026 | P | 24,875 | $10.05 | A | 33,974 | D |
Table II — derivative securities
No Table II lines on this filing.