Pierre-Marie de Leener - 21 Jun 2025 Form 4 Insider Report for Trinseo PLC (TSE)

Reporting relationship
Director
Issuer ticker
TSE
Reported as of
21 Jun 2025
Net transaction value
-$74,604
Source evidence Original filing metadata and source links for verification. 4 source fields
SEC form
4
Accepted by SEC
24 Jun 2025, 16:15:17 UTC
Prior SEC filing
25 Jun 2024
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
/s/ Angelo Chaclas, Attorney-in-Fact

Key filing fact

Pierre-Marie de Leener filed Form 4 for Trinseo PLC (TSE) on 24 Jun 2025.

Key facts

  • This page summarizes Pierre-Marie de Leener's Form 4 filing for Trinseo PLC (TSE).
  • 1 reported transaction and 0 derivative rows are listed below.
  • Accepted by SEC: 24 Jun 2025, 16:15.

Change

  • Previous filing in this sequence was filed on 25 Jun 2024.
  • Current net transaction value: -$74,604.

Research use

  • This tells you what this filing adds before you inspect full transaction and derivative tables.
  • You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001423137 Primary reporting owner

De Leener Pierre-Marie

Relationship
Director
Address
C/O TRINSEO PLC, 440 EAST SWEDESFORD ROAD, SUITE 301, WAYNE
Signature
/s/ Angelo Chaclas, Attorney-in-Fact
Signature date
24 Jun 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

TSE transaction

Ordinary Shares

Tax liability

Transaction value
$74,604
Shares
-20,001
Change %
-36%
Price
$3.73
Shares after
36,174
Date
21 Jun 2025
Ownership
Direct
Footnotes
F1
* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

Shares withheld by the Company to pay taxes due following the vesting of previously granted restricted stock units.

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