Burton Karen L 4

What Happened

• Karen L. Burton, Senior Vice President and Chief Financial Officer of STERIS plc (STE), had 99 shares withheld on June 1, 2026 to satisfy tax withholding related to the vesting of restricted shares. A total of 340 restricted shares vested on that date; 99 were withheld and the remainder were delivered to her. The Form 4 reports $0 cash proceeds for the withheld shares, though the footnote states the shares were valued at the NYSE closing price on June 1, 2026.

Key Details

• Transaction date: June 1, 2026. Transaction code F = tax withholding to cover tax liability on vested restricted shares. Reported price/proceeds: 99 shares @ $0.00 (reported proceeds $0), but valued at NYSE close on 6/1/2026 per footnote.
• Vesting: 340 restricted shares vested on June 1, 2026; 99 withheld for taxes.
• Restricted shares remaining (as of June 1, 2026): 5,139 ordinary shares remain restricted. Future lapse schedule: 225 on 6/2/2026; 651 on 6/3/2026; 306 on 6/4/2026; 783 on 10/1/2026; 651 on 6/3/2027; 306 on 6/4/2027; 783 on 10/1/2027; 651 on 6/5/2028; 783 on 10/1/2028.
• Filing timeliness: Report filed 2026-06-03 for the 2026-06-01 transaction (filed within the typical two-business-day window).

Context

• This was a routine tax-withholding event tied to RSU vesting (transaction code F). Withholding shares to cover taxes is common and does not by itself indicate a buy or sell decision about the company's stock. The Form 4 shows the mechanical withholding rather than an open-market sale.