Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| Ecovyst Inc.ECVT · Entity 4897 | See Remarks | March 04, 2026 | March 06, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
Ecovyst Inc.
Report date March 04, 2026 · Filed March 06, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 595,784 |
Reported balance
After 2026-03-04 transaction · row 1
1 source rowRow 1 · 2026-03-04 · Grant · Acquired 11,052 · Balance 595,784 |
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| March 04, 2026 Filed Mar 6, 2026 21:00 UTC | Ecovyst Inc. ECVT · Entity 4897 | GrantCommon Stock | 11,052 | $11.31 | $124,998.12 |
DisclosureSEC source: 0001708035-26-000056 · wk-form4_1772830832.xml · nonDerivative · entry 1 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 595,784 Read SEC document |
| February 03, 2026 Filed Feb 5, 2026 21:04 UTC | Ecovyst Inc. ECVT · Entity 4897 | GrantCommon Stock | 27,158 | $0.00 | $0.00 |
DisclosureSEC source: 0001708035-26-000036 · wk-form4_1770325495.xml · nonDerivative · entry 1 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 584,732 Read SEC document |
| February 03, 2025 Filed Feb 5, 2025 21:09 UTC | Ecovyst Inc. ECVT · Entity 4897 | GrantCommon Stock | 35,944 | $0.00 | $0.00 |
DisclosureSEC source: 0001708035-25-000048 · wk-form4_1738789753.xml · nonDerivative · entry 1 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 557,574 Read SEC document |
| January 22, 2025 Filed Jan 23, 2025 21:08 UTC | Ecovyst Inc. ECVT · Entity 4897 | Tax withholdingCommon Stock | 5,522 | $7.96 | $43,955.12 |
DisclosureSEC source: 0001708035-25-000017 · wk-form4_1737666485.xml · nonDerivative · entry 1 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 521,630 Read SEC document |
| January 05, 2025 Filed Jan 7, 2025 22:15 UTC | Ecovyst Inc. ECVT · Entity 4897 | Tax withholdingCommon Stock | 17,457 | $7.76 | $135,379.04 |
DisclosureSEC source: 0001708035-25-000006 · wk-form4_1736288100.xml · nonDerivative · entry 1 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 527,152 Read SEC document |
| August 05, 2024 Filed Aug 6, 2024 20:01 UTC | Ecovyst Inc. ECVT · Entity 4897 | PurchaseCommon Stock | 4,807 | $6.26 | $30,090.38 |
DisclosureSEC source: 0001708035-24-000107 · wk-form4_1722974474.xml · nonDerivative · entry 1 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 544,609 Read SEC document |
| January 22, 2024 Filed Jan 24, 2024 21:42 UTC | Ecovyst Inc. ECVT · Entity 4897 | GrantCommon Stock | 45,403 | $0.00 | $0.00 |
DisclosureSEC source: 0001708035-24-000054 · wk-form4_1706132544.xml · nonDerivative · entry 1 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 539,802 Read SEC document |
| July 01, 2023 Filed Jul 5, 2023 20:30 UTC | Ecovyst Inc. ECVT · Entity 4897 | Tax withholdingCommon Stock | 52,830 | $11.37 | $600,677.10 |
DisclosureSEC source: 0000899243-23-016900 · doc4.xml · nonDerivative · entry 1 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 494,399 Read SEC document |
| March 08, 2023 Filed Mar 9, 2023 23:07 UTC | Ecovyst Inc. ECVT · Entity 4897 | GrantCommon Stock | 12,306 | $0.00 | $0.00 |
DisclosureSEC source: 0000950170-23-007097 · ownership.xml · nonDerivative · entry 1 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 547,229 Read SEC document |
| January 16, 2023 Filed Jan 18, 2023 21:32 UTC | Ecovyst Inc. ECVT · Entity 4897 | GrantCommon Stock | 60,976 | $0.00 | $0.00 |
DisclosureSEC source: 0000899243-23-002032 · doc4.xml · nonDerivative · entry 1 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 534,923 Read SEC document |
| November 16, 2022 Filed Nov 18, 2022 21:22 UTC | Ecovyst Inc. ECVT · Entity 4897 | Exercise / conversionStock Option (right to buy) · Derivative | 9,931 | $0.00 Strike: $1.88 | $0.00 |
DisclosureSEC source: 0000899243-22-036368 · doc4.xml · derivative · entry 4 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 9,931 shares Expires 2025-11-01 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: The shares reported on this Form 4 are subject to a lock-up agreement between the reporting person, Goldman Sachs & Co. LLC, Deutsche Bank Securities Inc. and Credit Suisse Securities (USA) LLC, dated November 14, 2022 (the "Lock-Up Date") pursuant to which the remaining shares reported in Table 1 of this Form 4 cannot be sold for 90 days following the Lock-Up Date. Read SEC document |
| November 16, 2022 Filed Nov 18, 2022 21:22 UTC | Ecovyst Inc. ECVT · Entity 4897 | Exercise / conversionStock Option (right to buy) · Derivative | 4,965 | $0.00 Strike: $1.88 | $0.00 |
DisclosureSEC source: 0000899243-22-036368 · doc4.xml · derivative · entry 3 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 4,965 shares Expires 2025-11-01 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: The shares reported on this Form 4 are subject to a lock-up agreement between the reporting person, Goldman Sachs & Co. LLC, Deutsche Bank Securities Inc. and Credit Suisse Securities (USA) LLC, dated November 14, 2022 (the "Lock-Up Date") pursuant to which the remaining shares reported in Table 1 of this Form 4 cannot be sold for 90 days following the Lock-Up Date. Read SEC document |
| November 16, 2022 Filed Nov 18, 2022 21:22 UTC | Ecovyst Inc. ECVT · Entity 4897 | Exercise / conversionStock Option (right to buy) · Derivative | 4,965 | $0.00 Strike: $1.88 | $0.00 |
DisclosureSEC source: 0000899243-22-036368 · doc4.xml · derivative · entry 2 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 4,965 shares Expires 2025-11-01 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: The shares reported on this Form 4 are subject to a lock-up agreement between the reporting person, Goldman Sachs & Co. LLC, Deutsche Bank Securities Inc. and Credit Suisse Securities (USA) LLC, dated November 14, 2022 (the "Lock-Up Date") pursuant to which the remaining shares reported in Table 1 of this Form 4 cannot be sold for 90 days following the Lock-Up Date. Read SEC document |
| November 16, 2022 Filed Nov 18, 2022 21:22 UTC | Ecovyst Inc. ECVT · Entity 4897 | Exercise / conversionCommon Stock | 19,861 | $1.88 | $37,338.68 |
DisclosureSEC source: 0000899243-22-036368 · doc4.xml · nonDerivative · entry 1 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 473,947 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: The shares reported on this Form 4 are subject to a lock-up agreement between the reporting person, Goldman Sachs & Co. LLC, Deutsche Bank Securities Inc. and Credit Suisse Securities (USA) LLC, dated November 14, 2022 (the "Lock-Up Date") pursuant to which the remaining shares reported in Table 1 of this Form 4 cannot be sold for 90 days following the Lock-Up Date. Read SEC document |
| August 04, 2022 Filed Aug 8, 2022 20:31 UTC | Ecovyst Inc. ECVT · Entity 4897 | PurchaseCommon Stock | 11,400 | $8.79 | $100,252.74 |
DisclosureSEC source: 0000899243-22-027994 · doc4.xml · nonDerivative · entry 1 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 454,086 F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $8.79 to $8.795, inclusive. The reporting person undertakes to provide to Ecovyst Inc., any security holder of Ecovyst Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price. Read SEC document |
| May 12, 2022 Filed May 16, 2022 20:30 UTC | Ecovyst Inc. ECVT · Entity 4897 | PurchaseCommon Stock | 5,200 | $9.62 | $50,023.48 |
DisclosureSEC source: 0000899243-22-018148 · doc4.xml · nonDerivative · entry 1 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 442,686 F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $9.61 to $9.625, inclusive. The reporting person undertakes to provide to Ecovyst Inc., any security holder of Ecovyst Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote (1) to this Form 4. Read SEC document |
| March 01, 2022 Filed Mar 3, 2022 21:31 UTC | Ecovyst Inc. ECVT · Entity 4897 | GrantCommon Stock | 24,335 | $0.00 | $0.00 |
DisclosureSEC source: 0000899243-22-009083 · doc4.xml · nonDerivative · entry 1 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 437,486 Read SEC document |
| January 17, 2022 Filed Jan 19, 2022 21:21 UTC | Ecovyst Inc. ECVT · Entity 4897 | GrantCommon Stock | 121,477 | $0.00 | $0.00 |
DisclosureSEC source: 0000899243-22-002405 · doc4.xml · nonDerivative · entry 2 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 413,151 Read SEC document |
| January 17, 2022 Filed Jan 19, 2022 21:21 UTC | Ecovyst Inc. ECVT · Entity 4897 | GrantCommon Stock | 72,887 | $0.00 | $0.00 |
DisclosureSEC source: 0000899243-22-002405 · doc4.xml · nonDerivative · entry 1 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 291,674 Read SEC document |
| January 18, 2021 Filed Jan 21, 2021 01:48 UTC | Ecovyst Inc. PQG · Entity 4897 | GrantCommon Stock | 81,222 | $0.00 | $0.00 |
DisclosureSEC source: 0000899243-21-002591 · doc4.xml · nonDerivative · entry 1 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 218,787 Read SEC document |
| January 20, 2020 Filed Jan 23, 2020 01:46 UTC | Ecovyst Inc. PQG · Entity 4897 | GrantCommon Stock | 22,516 | $0.00 | $0.00 |
DisclosureSEC source: 0000899243-20-001727 · doc4.xml · nonDerivative · entry 1 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 137,565 Read SEC document |
| January 05, 2020 Filed Jan 8, 2020 00:26 UTC | Ecovyst Inc. PQG · Entity 4897 | Tax withholdingCommon Stock | 3,388 | $16.61 | $56,257.74 |
DisclosureSEC source: 0000899243-20-000784 · doc4.xml · nonDerivative · entry 1 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 115,049 Read SEC document |
| November 01, 2019 Filed Nov 4, 2019 22:04 UTC | Ecovyst Inc. PQG · Entity 4897 | Tax withholdingCommon Stock | 5,132 | $16.39 | $84,113.48 |
DisclosureSEC source: 0000899243-19-026583 · doc4.xml · nonDerivative · entry 1 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 118,437 Read SEC document |
| October 02, 2019 Filed Oct 4, 2019 20:44 UTC | Ecovyst Inc. PQG · Entity 4897 | Tax withholdingCommon Stock | 5,732 | $15.83 | $90,708.90 |
DisclosureSEC source: 0000899243-19-025118 · doc4.xml · nonDerivative · entry 1 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 123,569 Read SEC document |
| March 11, 2019 Filed Mar 13, 2019 21:15 UTC | Ecovyst Inc. PQG · Entity 4897 | GrantCommon Stock | 24,335 | $0.00 | $0.00 |
DisclosureSEC source: 0000899243-19-007556 · doc4.xml · nonDerivative · entry 1 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 129,301 F1 · balance_after: Corrects the inadvertent inclusion of one extra share of common stock in the transaction reported by Mr. Koscinski on a Form 4 filed on October 4, 2018. Read SEC document |
| October 02, 2018 Filed Oct 4, 2018 23:16 UTC | Ecovyst Inc. PQG · Entity 4897 | Tax withholdingCommon Stock | 4,476 | $17.68 | $79,135.68 |
DisclosureSEC source: 0000899243-18-026257 · doc4.xml · nonDerivative · entry 1 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 104,965 Read SEC document |
| June 30, 2018 Filed Jul 3, 2018 20:50 UTC | Ecovyst Inc. PQG · Entity 4897 | Tax withholdingCommon Stock | 3,356 | $17.94 | $60,206.64 |
DisclosureSEC source: 0000899243-18-019231 · doc4.xml · nonDerivative · entry 1 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 109,441 Read SEC document |
| October 02, 2017 Filed Oct 4, 2017 21:20 UTC | Ecovyst Inc. PQG · Entity 4897 | GrantStock Option (right to buy) · Derivative | 37,175 | $0.00 Strike: $16.97 | $0.00 |
DisclosureSEC source: 0000899243-17-023555 · doc4.xml · derivative · entry 3 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 55,762 Underlying: Common Stock · 37,175 shares Expires 2027-10-02 F2 · derivative.exercise_date: This option vests in three equal annual installments beginning on October 2, 2018. Read SEC document |
| October 02, 2017 Filed Oct 4, 2017 21:20 UTC | Ecovyst Inc. PQG · Entity 4897 | GrantStock Option (right to buy) · Derivative | 18,587 | $0.00 Strike: $16.97 | $0.00 |
DisclosureSEC source: 0000899243-17-023555 · doc4.xml · derivative · entry 2 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 18,587 Underlying: Common Stock · 18,587 shares Expires 2027-10-02 F1 · derivative.exercise_date: This option vests in two equal annual installments beginning on June 30, 2018. Read SEC document |
| October 02, 2017 Filed Oct 4, 2017 21:20 UTC | Ecovyst Inc. PQG · Entity 4897 | GrantCommon Stock | 70,713 | $0.00 | $0.00 |
DisclosureSEC source: 0000899243-17-023555 · doc4.xml · nonDerivative · entry 1 Koscinski Joseph S. · CIK 0001717992 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 112,797 Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.