ICON PLC files with the SEC under CIK 0001060955 and is classified as commercial physical and biological research. We track it alongside the rest of the Health Care sector.
ICLR Form 4 activity by transaction type, last 90 days
Form 4 transaction type
Transactions
Shares
Total value
Open-market sale
37
23,711
$4.04M
Grant or award
14
92,375
Option exercise
26
62,710
Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.
ICLR insider transactions (Form 4)
83
18 Form 4 filings on record, the earliest from May 15, 2026, newest first.
Footnote F1 (price): These restricted share units were granted on May 22, 2025 and vested on August 10, 2026.
Footnote F2 (price): Each restricted share unit represents a contingent right to receive one ordinary share of the Issuer upon vesting, with a nominal conversion price equal to the par value of the ordinary shares (EUR 0.06) per underlying share automatically deducted from the reporting person's pay… Full note on SEC EDGAR
Footnote F4 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $162.08 to $163.0799, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F5 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $163.15 to $164.1499, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F6 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $164.16 to $165.1599, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F7 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $165.16 to $166.1599, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F1 (price): These restricted share units were granted on May 22, 2025 and vested on August 10, 2026.
Footnote F2 (price): Each restricted share unit represents a contingent right to receive one ordinary share of the Issuer upon vesting, with a nominal conversion price equal to the par value of the ordinary shares (EUR 0.06) per underlying share automatically deducted from the reporting person's pay… Full note on SEC EDGAR
Footnote F4 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $162.08 to $163.0799, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F5 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $163.15 to $164.1499, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F6 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $164.16 to $165.1599, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F7 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $165.16 to $166.1599, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F1 (price): These restricted share units were granted on May 22, 2025 and vested on August 10, 2026.
Footnote F2 (price): Each restricted share unit represents a contingent right to receive one ordinary share of the Issuer upon vesting, with a nominal conversion price equal to the par value of the ordinary shares (EUR 0.06) per underlying share automatically deducted from the reporting person's pay… Full note on SEC EDGAR
Footnote F4 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $162.08 to $163.0799, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F5 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $163.15 to $164.1499, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F6 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $164.16 to $165.1599, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F7 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $165.16 to $166.1599, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F1 (price): These restricted share units were granted on May 22, 2025 and vested on August 10, 2026.
Footnote F2 (price): Each restricted share unit represents a contingent right to receive one ordinary share of the Issuer upon vesting, with a nominal conversion price equal to the par value of the ordinary shares (EUR 0.06) per underlying share automatically deducted from the reporting person's pay… Full note on SEC EDGAR
Footnote F4 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $162.08 to $163.0799, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F5 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $163.15 to $164.1499, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F6 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $164.16 to $165.1599, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F7 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $165.16 to $166.1599, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F1 (price): These restricted share units were granted on May 22, 2025 and vested on August 10, 2026.
Footnote F2 (price): Each restricted share unit represents a contingent right to receive one ordinary share of the Issuer upon vesting, with a nominal conversion price equal to the par value of the ordinary shares (EUR 0.06) per underlying share automatically deducted from the reporting person's pay… Full note on SEC EDGAR
Footnote F4 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $162.08 to $163.0799, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F5 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $163.15 to $164.1499, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F6 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $164.16 to $165.1599, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F7 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $165.16 to $166.1599, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F1 (price): These restricted share units were granted on May 22, 2025 and vested on August 10, 2026.
Footnote F2 (price): Each restricted share unit represents a contingent right to receive one ordinary share of the Issuer upon vesting, with a nominal conversion price equal to the par value of the ordinary shares (EUR 0.06) per underlying share automatically deducted from the reporting person's pay… Full note on SEC EDGAR
Footnote F4 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $162.08 to $163.0799, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F5 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $163.15 to $164.1499, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F6 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $164.16 to $165.1599, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F7 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $165.16 to $166.1599, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F1 (price): These restricted share units were granted on May 22, 2025 and vested on August 10, 2026.
Footnote F2 (price): Each restricted share unit represents a contingent right to receive one ordinary share of the Issuer upon vesting, with a nominal conversion price equal to the par value of the ordinary shares (EUR 0.06) per underlying share automatically deducted from the reporting person's pay… Full note on SEC EDGAR
Footnote F4 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $162.08 to $163.0799, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F5 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $163.15 to $164.1499, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F6 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $164.16 to $165.1599, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F7 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $165.16 to $166.1599, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F1 (price): These restricted share units were granted on March 6, 2025 and (i) 918 restricted share units vested on August 10, 2026, (ii) 918 restricted share units will vest on March 6, 2027, and (iii) 919 restricted share units will vest on March 6, 2028.
Footnote F2 (price): Each restricted share unit represents a contingent right to receive one ordinary share of the Issuer upon vesting, with a nominal conversion price equal to the par value of the ordinary shares (EUR 0.06) per underlying share automatically deducted from the reporting person's pay… Full note on SEC EDGAR
Footnote F3 (price): These restricted share units were granted on May 22, 2025 and (i) 3,375 restricted share units vested on August 10, 2026, (ii) 3,375 restricted share units will vest on March 6, 2027, and (iii) 3,377 restricted share units will vest on March 6, 2028.
Footnote F5 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $162.08 to $163.0799, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F6 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $163.15 to $164.1499, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F7 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $164.16 to $165.1599, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F8 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $165.16 to $166.1599, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or… Full note on SEC EDGAR
Footnote F1 (price): Each restricted share unit represents a contingent right to receive one ordinary share of the Issuer upon vesting, with a nominal conversion price equal to the par value of the ordinary shares (EUR 0.06) per underlying share automatically deducted from the reporting person's pay… Full note on SEC EDGAR
Footnote F2 (price): These restricted share units were granted on August 7, 2023 and 728 restricted share units vested on August 7, 2026.
Footnote F1 (price): Reflects the extension of the expiration date of the stock options for a 30 trading day period under the Company Share Trading Policy.
Footnote F1 (price): Reflects the extension of the expiration date of the stock options for a 30 trading day period under the Company Share Trading Policy.
Footnote F1 (price): Reflects the extension of the expiration date of the stock options for a 30 trading day period under the Company Share Trading Policy.
Recent ICLR Form 144 notices of proposed sale
3
An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.
ICON PLC (ICLR) had 15 insider filings in the last 90 days, with the most recent on 2026-09-18. The full record for ICLR runs to 18 Form 4 filings, the earliest from 2026-05-15. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying ICLR stock?
No insider purchases of ICLR were filed in the last 90 days.
How many insiders are selling ICLR stock?
37 insider sales of ICLR were filed in the last 90 days, totaling $4.04M.
Where can I see ICLR SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects ICLR Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
House of Representatives Periodic Transaction Reports from 2024. Senate filings are not included yet. The full history of ICLR beside its insider purchases is in the Congress Tracker.
Kevin HernRepublican, OK-01
