Johnson KLynne 4

What Happened

• K. Lynne Johnson, a director of Trinseo PLC (TSE), recorded a disposition on 2026-05-12: 42,484 restricted stock units (RSUs) were forfeited. The Form 4 lists the transaction as an "other acquisition or disposition" (code J) and shows no price or cash value for the transaction.
• Footnote F1 states this was a voluntary forfeiture of RSUs granted on June 25, 2025; at the time of forfeiture the award was unvested and not settled. Because the award was forfeited before vesting, there were no sale proceeds.

Key Details

• Transaction date: 2026-05-12 (reported on Form 4 filed 2026-05-14)
• Shares/units affected: 42,484 RSUs; transaction code J (other disposition)
• Price/Value: N/A (no cash proceeds; RSUs were forfeited)
• Amount owned after transaction: not specified in the filing
• Footnote: F1 — voluntary forfeiture of unvested RSUs granted 2025-06-25
• Filing timeliness: Reported two days after the transaction date (filed 2026-05-14 for a 2026-05-12 transaction)

Context

• A forfeiture of unvested RSUs cancels the grant before it vests or is settled; this is different from an open-market sale and does not generate proceeds for the insider. Such forfeitures can occur for many administrative or personal reasons and should not be interpreted as a straightforward buy/sell signal.