ICON director plans sale of up to 3,255 shares

ICON PLC director files a Rule 144 notice to sell up to 3,255 common shares following option exercise, noting a prior 841-share sale.

Rhea-AI Filing Summary

ICON PLC (ICLR) has a notice from director Eugene Pacelli McCague indicating an intent under Rule 144 to sell up to 3,255 shares of common stock. The planned sale, dated September 17, 2026, is in connection with an exercise of options under a registered plan and will be executed through Morgan Stanley Smith Barney LLC. The notice also reports a prior sale of 841 shares on August 11, 2026.

Key Figures

Shares covered by notice: 3,255 shares Aggregate value of shares to be sold: 569,625.00 Shares sold in past 3 months: 841 shares +3 more

6 metrics

Shares covered by notice 3,255 shares Common stock referenced for potential sale dated September 17, 2026

Aggregate value of shares to be sold 569,625.00 Aggregate value associated with 3,255 common shares dated September 17, 2026

Shares sold in past 3 months 841 shares Common shares sold on August 11, 2026, reported in three-month history

Aggregate value of prior sale 138,169.82 Aggregate value of 841 common shares sold on August 11, 2026

Planned sale date September 17, 2026 Date associated with the 3,255-share planned sale under Rule 144

Issuer phone number 353-1-291-2000 Contact number for ICON PLC

Key Terms

Rule 144, Exercise of Options Under a Registered Plan, NASDAQ

3 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 |"

NASDAQ market

"3255 | 569625.00 | 77154209 | 09/17/2026 | NASDAQ"

The Nasdaq is a stock exchange where many companies' shares are bought and sold, functioning much like a marketplace for investments. It matters to investors because it provides a platform to buy and sell ownership stakes in companies, helping them track the value of those companies and make informed decisions. As one of the largest and most technology-focused markets, it also reflects trends and developments in the business world.

FAQ

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

What does ICON PLC (ICLR)'s latest Form 144 filing disclose?

It discloses that director Eugene Pacelli McCague intends, under Rule 144, to sell up to 3,255 shares of ICON PLC common stock on September 17, 2026, in connection with an exercise of options under a registered plan.

How many ICON PLC (ICLR) shares are covered by this Form 144 notice?

The notice covers up to 3,255 shares of ICON PLC common stock, listed for potential sale on September 17, 2026, with Morgan Stanley Smith Barney LLC as the brokerage firm handling the transaction.

What prior sales does the Form 144 report for ICON PLC (ICLR)?

The filing reports that 841 shares of ICON PLC common stock were sold on August 11, 2026, with an aggregate value reported as 138,169.82, as part of the three-month sale history required under Rule 144.

What is the reported aggregate value of the ICON PLC (ICLR) shares to be sold?

The filing lists an aggregate value of 569,625.00 for the 3,255 shares of ICON PLC common stock referenced for potential sale dated September 17, 2026 on NASDAQ.

Why is the ICON PLC (ICLR) director selling shares according to the Form 144?

The Form 144 states that the planned sale of 3,255 shares of ICON PLC common stock on September 17, 2026 is in connection with an “Exercise of Options Under a Registered Plan.”

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

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Available on EDGAR 09/17/2026 - 04:09 PM Accepted by SEC EDGAR 09/17/2026 - 04:08 PM Learn about SEC filing dates

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	0001973720
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	EUGENE PACELLI MCCAGUE
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	3255	569625.00	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			3255	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
EUGENE PACELLI MCCAGUE 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/ Eugene Pacelli McCague
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)