ICON director plans $876K stock sale Sept. 17

ICON PLC (ICLR) has a notice of proposed resale of shares under Rule 144 filed on behalf of director Ronan Martin Murphy.

Available on EDGAR 09/17/2026 - 04:06 PM EDT Accepted by SEC EDGAR 09/17/2026 - 04:06 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

ICON PLC (ICLR) has a notice of proposed resale of shares under Rule 144 filed on behalf of director Ronan Martin Murphy. The filing indicates an intended sale of 5,005 shares of common stock, with an aggregate value shown as $875,875.00, through Morgan Stanley Smith Barney LLC, with the securities noted as listed on NASDAQ.

The shares to be sold on September 17, 2026 are described as arising from the exercise of options under a registered plan, with settlement by wire. The filing also reports that in the prior three months, Murphy sold 841 shares of common stock on August 11, 2026 for an aggregate amount of $138,169.82.

Key Figures

Shares to be sold: 5,005 shares Aggregate value of proposed sale: $875,875.00 Shares sold in past 3 months: 841 shares +2 more

5 metrics

Shares to be sold 5,005 shares Proposed sale of ICON PLC common stock reported for September 17, 2026

Aggregate value of proposed sale $875,875.00 Value shown for 5,005 shares of common stock in the Form 144

Shares sold in past 3 months 841 shares Common stock sold on August 11, 2026 by Ronan Martin Murphy

Aggregate proceeds from prior sale $138,169.82 Amount reported for 841 shares sold on August 11, 2026

Planned transaction date September 17, 2026 Date listed for the exercise of options and proposed sale of 5,005 shares

Key Terms

Rule 144, Exercise of Options Under a Registered Plan, Form 144, wire

4 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Exercise of Options Under a Registered Plan financial

"Common | 09/17/2026 | Exercise of Options Under a Registered Plan |"

Form 144 regulatory

"144: Filer Information"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

wire financial

"5005 | 09/17/2026 | Wire"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the Form 144 filing disclose for ICON PLC (ICLR)?

It discloses that director Ronan Martin Murphy has filed a notice under Rule 144 to resell 5,005 shares of ICON PLC common stock, valued in the filing at $875,875.00, with the shares coming from the exercise of options under a registered plan.

How many ICON PLC (ICLR) shares does Ronan Martin Murphy plan to sell?

The filing reports an intended sale of 5,005 shares of ICON PLC common stock, shown with an aggregate value of $875,875.00, with the transaction date indicated as September 17, 2026.

What is the source of the ICON PLC (ICLR) shares being sold under this Form 144?

The shares are described as arising from the exercise of options under a registered plan, with the Form 144 listing the transaction date for both the option exercise and the proposed sale as September 17, 2026.

Which broker is involved in the planned sale of ICON PLC (ICLR) shares?

The Form 144 lists Morgan Stanley Smith Barney LLC Executive Financial Services at 1 New York Plaza, New York, as the broker handling the proposed sale of 5,005 shares of ICON PLC common stock.

What prior ICON PLC (ICLR) share sales by Ronan Martin Murphy are disclosed?

The filing reports that in the past three months, Ronan Martin Murphy sold 841 shares of ICON PLC common stock on August 11, 2026 for an aggregate amount of $138,169.82.

On which market are the ICON PLC (ICLR) shares in this Form 144 listed?

The securities covered by the Form 144 are identified as common stock listed on NASDAQ, with the notice relating to a proposed resale of 5,005 shares through a broker.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001974743
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	ICON PUBLIC LIMITED COMPANY
SEC File Number	333-08704
Address of Issuer	South County Business Park Leopardstown Dublin 18 IRELAND D18 X5R3
Phone	353-1-291-2000
Name of Person for Whose Account the Securities are To Be Sold	RONAN MARTIN MURPHY
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	5005	875875.00	77154209	09/17/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	09/17/2026	Exercise of Options Under a Registered Plan	Issuer			5005	09/17/2026	Wire

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
RONAN MARTIN MURPHY South County Business Park Leopardstown Dublin 18 L2 D18 X5R3	Common	08/11/2026	841	138169.82

144: Remarks and Signature

Remarks
Date of Notice	09/17/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Ronan Murphy
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)