Companies / Trinseo PLC
Trinseo PLC
OTC: TSECIK 1519061WAYNE, PA
Financials · FY2025
Ownership
36.6M shares outstanding · as of Jul 31, 2026
Ownership
| 10%+ / strategic | 5.72% | 2,091,125 |
| Public float | 94.28% | 34,468,743 |
% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.
Insiders 17
View all →| Insider | % of shares | Shares |
|---|---|---|
Alvarado JosephDirector | — | — |
Bozich Frank aCEOCEO AND PRESIDENT · Director | — | — |
Chaclas Angelo N.SVP, CLO, CCO & CORP. SEC. | — | — |
Cooney Paula M.SVP, CHRO | — | — |
Cote Jeffrey JDirector | — | — |
Farrell MatthewDirector | — | — |
Flaton CarolDirector | — | — |
Frizzley Jill KathleenDirector | — | — |
Greene RogerVP, GLOBAL CONTROLLER & PAO | — | — |
Hendriks HanSVP, CHIEF TECHNOLOGY OFFICER | — | — |
Institutional holders 0
| Holder | Value | % of shares |
|---|---|---|
| No institutional holders on file. | ||
Activity
InsidersInstitutions
What insiders are doing in this stock (Form 4).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Feb 22, 2026 | Bozich Frank a CEO | Other | Ordinary Shares | $10.7K | -33K -4.52% | 688,369 1.88% of shares | low |
| Feb 27, 2026 | Bozich Frank a CEO | Other | Ordinary Shares | $5.4K | -24K -3.44% | 664,689 1.82% of shares | low |
| Feb 22, 2026 | Stasse David Phillip Executive | Other | Ordinary Shares | $3.2K | -10K -3.52% | 265,154 0.73% of shares | low |
| Feb 21, 2026 | Cooney Paula M. Executive | Other | Ordinary Shares | $2.4K | -7K -5.47% | 128,672 0.35% of shares | low |
| Feb 27, 2026 | Stasse David Phillip Executive | Other | Ordinary Shares | $2.4K | -10K -3.91% | 254,788 0.70% of shares | low |
| Feb 22, 2026 | Chaclas Angelo N. Executive | Other | Ordinary Shares | $2.3K | -7K -2.45% | 282,405 0.77% of shares | low |
| Feb 21, 2026 | Hendriks Han Executive | Other | Ordinary Shares | $2.1K | -6K -7.06% | 83,360 0.23% of shares | low |
| Feb 21, 2026 | van Kessel Bregje Executive | Other | Ordinary Shares | $2.0K | -6K -5.34% | 105,695 0.29% of shares | low |
5%+ ownership events
Schedule 13D / 13G
| Filer | Stance | % of class |
|---|---|---|
| CastleKnight Master Fund LP | Passive13G/A | — |
| Charles Schwab Investment Management Inc | Passive13G | — |