ICON PLC 4

Julie O’Neill of ICON plc had RSUs vest and convert into ordinary shares, received a new RSU award, and sold 915 shares in automatic tax-withholding sales, ending with 3,515 ordinary shares held directly.

On August 10, 2026, ICON plc insider Julie O’Neill had 1,732 restricted share units vest and convert into ordinary shares at a nominal par value deduction, increasing her direct ownership to 4,430 ordinary shares, and simultaneously received a new grant of 1,324 restricted share units scheduled to vest on May 22, 2027. On August 11, 2026, she conducted a series of non-discretionary “sell-to-cover” transactions totaling 915 ordinary shares at weighted average prices between approximately $162.72 and $165.51 per share to satisfy tax withholding obligations arising from the RSU vesting, reducing her direct holdings to 3,515 ordinary shares. The transactions are characterized in the footnotes as routine equity compensation activity and tax-related sales rather than elective open-market buying or selling.

Filing Facts

CIK

1060955

Ticker

ICLR

Form

4

Source Type

fda

Accession

0001628280-26-056327

Alert Tier

5