ICON PLC ownership filing: FMR LLC reports beneficial ownership of 4,174,005.50 shares of ICON PLC common stock, equal to 5.5% of the class as of 03/31/2026. The filing attributes sole dispositive power for 4,174,005.50 shares to FMR LLC and notes other persons may have rights to dividends or proceeds. The schedule is signed under power of attorney on 05/05/2026.
Positive
None.
Negative
None.
Insights
FMR LLC holds a >5% stake in ICON PLC, disclosed via Schedule 13G.
FMR LLC reports 4,174,005.50 shares representing 5.5% of ICON PLC common stock as of 03/31/2026. Schedule 13G filings typically indicate passive or qualifying institutional ownership rather than active solicitation.
Watch subsequent filings for changes in percent ownership or conversions of this disclosure to a Schedule 13D if activist intent emerges; timing of any such change is not provided in the excerpt.
Disclosure appears to follow beneficial-ownership reporting mechanics and includes a 13d-1(k) exhibit reference.
The cover data lists CUSIP G4705A100 and specifies voting/dispositive powers: sole voting 4,155,016 and sole dispositive 4,174,005.50. Item 6 states other persons may have rights to dividends or sale proceeds.
The filing is signed under a power of attorney on 05/05/2026; cash-flow treatment and beneficiary identities beyond the statement in Item 6 are not detailed here.
Key Figures
Beneficial ownership:4,174,005.50 sharesPercent of class:5.5%Sole voting power:4,155,016 shares+4 more
7 metrics
Beneficial ownership4,174,005.50 sharesAmount beneficially owned as of 03/31/2026
Percent of class5.5%Percent of ICON PLC common stock as reported
Sole voting power4,155,016 sharesSole voting power reported on the cover page
Sole dispositive power4,174,005.50 sharesSole dispositive power reported on the cover page
CUSIPG4705A100CUSIP for ICON PLC common stock in filing
Reporting date03/31/2026Date tied to the ownership amount
Signature date05/05/2026Date the filing was signed under power of attorney
Key Terms
Schedule 13G, Beneficially owned, Sole dispositive power, 13d-1(k) agreement
4 terms
Schedule 13Gregulatory
"Item 1. Name of issuer: ICON PLC (Schedule 13G disclosure)"
A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.
Beneficially ownedregulatory
"Item 4. Amount beneficially owned: 4174005.50"
Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.
Sole dispositive powerregulatory
"7 | Sole Dispositive Power 4,174,005.50"
Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.
13d-1(k) agreementregulatory
"Exhibit 99 for 13d-1(k) (1) agreement"
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
ICON PLC
(Name of Issuer)
COMMON STOCK
(Title of Class of Securities)
G4705A100
(CUSIP Number)
03/31/2026
(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
Rule 13d-1(b)
Rule 13d-1(c)
Rule 13d-1(d)
schemaVersion:
SCHEDULE 13G
CUSIP Number(s):
G4705A100
1
Names of Reporting Persons
FMR LLC
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
4,155,016.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
4,174,005.50
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
4,174,005.50
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
5.5 %
12
Type of Reporting Person (See Instructions)
HC
SCHEDULE 13G
CUSIP Number(s):
G4705A100
1
Names of Reporting Persons
Abigail P. Johnson
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
UNITED STATES
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
4,174,005.50
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
4,174,005.50
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
5.5 %
12
Type of Reporting Person (See Instructions)
IN
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
ICON PLC
(b)
Address of issuer's principal executive offices:
SOUTH COUNTY BUSINESS PARK,LEOPARDSTOWN,DUBLIN 18,L2,00000
Item 2.
(a)
Name of person filing:
FMR LLC
(b)
Address or principal business office or, if none, residence:
245 Summer Street, Boston, Massachusetts 02210
(c)
Citizenship:
Not applicable
(d)
Title of class of securities:
COMMON STOCK
(e)
CUSIP Number(s):
G4705A100
Item 3.
If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)
Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)
Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)
Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)
Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)
An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)
An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)
A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)
A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)
A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)
A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
please specify the type of institution:
(k)
Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.
Ownership
(a)
Amount beneficially owned:
4174005.50
(b)
Percent of class:
5.5 %
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
Please see the responses to Items 5 and 6 on the cover page.
(ii) Shared power to vote or to direct the vote:
0.00
(iii) Sole power to dispose or to direct the disposition of:
4174005.50
(iv) Shared power to dispose or to direct the disposition of:
0.00
Item 5.
Ownership of 5 Percent or Less of a Class.
Not Applicable
Item 6.
Ownership of more than 5 Percent on Behalf of Another Person.
If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required.
One or more other persons are known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the COMMON STOCK of ICON PLC. No one other person's interest in the COMMON STOCK of ICON PLC is more than five percent of the total outstanding COMMON STOCK.
Item 7.
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary.
See attached Exhibit 99.
Item 8.
Identification and Classification of Members of the Group.
Not Applicable
Item 9.
Notice of Dissolution of Group.
Not Applicable
Item 10.
Certifications:
By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
FMR LLC
Signature:
Richard Bourgelas
Name/Title:
Duly authorized under Power of Attorney effective as of April 13, 2026, by and on behalf of FMR LLC and its direct and indirect subsidiaries*
Date:
05/05/2026
Abigail P. Johnson
Signature:
Richard Bourgelas
Name/Title:
Duly authorized under Power of Attorney effective as of April 13, 2026, by and on behalf of Abigail P. Johnson*
Date:
05/05/2026
Comments accompanying signature: *This power of attorney is incorporated herein by reference to Exhibit 24 to the Schedule 13G filed by FMR LLC on April 29,2026, accession number: 0000315066-26-000738.
What stake does FMR LLC report in ICON PLC (ICLR)?
FMR LLC reports beneficial ownership of 4,174,005.50 shares, equal to 5.5% of ICON PLC common stock as of 03/31/2026. The filing is a Schedule 13G disclosure signed on 05/05/2026.
Does the filing show who controls voting or disposition of the ICON shares?
The filing shows sole voting power of 4,155,016 shares and sole dispositive power of 4,174,005.50 shares held by FMR LLC, with 0.00 shared powers recorded in the excerpt.
Is this Schedule 13G an indication of activist intent for ICON PLC?
A Schedule 13G typically indicates passive or qualifying institutional ownership, not activist intent. The excerpt does not state any solicitation or plans to change control.
What document references or exhibits are included with the filing?
The filing references Exhibit 99 for a 13d-1(k) agreement and incorporates a power of attorney by reference to an Exhibit 24 filing; exact exhibit texts are not included in the excerpt.
What CUSIP and issuer address are listed in the filing?
The filing lists CUSIP G4705A100 and the issuer's principal executive office at SOUTH COUNTY BUSINESS PARK, LEOPARDSTOWN, DUBLIN 18 in the cover responses.
