Koscinski Joseph S. insider trades

Koscinski Joseph S. has filed 15 Form 4s with the SEC that we hold, all for Ecovyst Inc. (ECVT), as See Remarks. Across all of them we count 3 purchases worth $180.3K and 0 sales worth $0 reported on Form 4. None of these purchases or sales is dated in the last 12 months. The largest single trade was a purchase of 11,400 shares of Ecovyst Inc. worth $100.2K, dated 2022-08-04. The first filing on our record is dated 2022-01-19 and the latest 2026-03-06.

Ecovyst Inc. (ECVT)

See Remarks · 15 filings · 3 purchases and sales

Trade date	Code	Shares	Value as filed	Filed	Source
2022-05-12	P, purchase reported on Form 4	5,200	$50.0K	2022-05-16	SEC
2022-08-04	P, purchase reported on Form 4	11,400	$100.2K	2022-08-08	SEC
2024-08-05	P, purchase reported on Form 4	4,807	$30.1K	2024-08-06	SEC

Source

Counted from the Form 4 filings this reporting owner (SEC CIK 1717992) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.

Source: U.S. Securities and Exchange Commission (EDGAR) and other official government data · Updated 2026-10-27 · For informational purposes only, not investment advice.
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