Security key
G4705A100
ICON PLC - Ordinary shares, par value 0.06 euros (ICLR)
CUSIP: G4705A100
Q1 2021 13F Holders as of 31 Mar 2021
- Security type / class
- Equity / Ordinary shares, par value 0.06 euros
- Total 13F shares
- 50,406,039
- Total 13F value
- $9,899,558,894
- Share change
- +3,804,394
- Put/Call ratio
- 67%
- SEC-reported price per share
- $196.37
- Number of holders
- 420
- Value change
- +$748,154,919
- Number of buys
- 212
- Number of sells
- 183
- Shares outstanding
- 76,338,895
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2021
Institutions
420
Top holders
10
ICLR full security history
Ownership snapshot
Full 13F holder table
ICON PLC SEC filings
ICON PLC company facts
Broader feeds
Ownership snapshot
Top reported holders of ICLR - ICON PLC - Ordinary shares, par value 0.06 euros (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
WELLINGTON MANAGEMENT GRO...
Disclosed value leader
WELLINGTON MANAGEMENT GRO...
Comparable rows
15/15
Latest evidence
31 Dec 2020
13F
Lead comparable stake: 5.2%
Showing 1-6 of 15 holder rows.
Quick read
WELLINGTON MANAGEMENT GROUP LLP leads the comparable SEC ownership view at 5.2%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens WELLINGTON MANAGEMENT GROUP LLP's linked filing trail.
Comparable ownership
Top 5
WELLINGTON MANAGEMENT GROUP LLP
5.2%
WCM INVESTMENT MANAGEMENT, LLC
5.2%
COMGEST GLOBAL INVESTORS S.A.S.
3.2%
RENAISSANCE TECHNOLOGIES LLC
3.1%
MASSACHUSETTS FINANCIAL SERVICES ...
3%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| WELLINGTON MANAGEMENT GROUP LLP |
13F
Company
|
5.2%
|
$777,775,000
3,989,007 shares
|
— | 31 Dec 2020 |
| WCM INVESTMENT MANAGEMENT, LLC |
13F
Company
|
5.2%
|
$775,348,000
3,976,550 shares
|
— | 31 Dec 2020 |
| COMGEST GLOBAL INVESTORS S.A.S. |
13F
Company
|
3.2%
|
$473,708,000
2,429,517 shares
|
— | 31 Dec 2020 |
| RENAISSANCE TECHNOLOGIES LLC |
13F
Company
|
3.1%
|
$455,547,000
2,336,376 shares
|
— | 31 Dec 2020 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ |
13F
Company
|
3%
|
$442,300,000
2,268,437 shares
|
— | 31 Dec 2020 |
| ACADIAN ASSET MANAGEMENT LLC |
13F
Company
|
2.7%
|
$403,487,000
2,069,370 shares
|
— | 31 Dec 2020 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2021
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
420
Shares
50,406,039
Rows available
420
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2021 vs Q1 2021 Across Filers
Q1 2021 holders
420
Q1 2021 holders
420
Holder diff
0
| Investor | Q1 2021 Shares | Q1 2021 Shares | Share Diff | Share Chg % | Q1 2021 value | Q1 2021 value | Value change | Value Chg % |
|---|