Security key
G4705A100
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 45,774,902
- Total 13F value
- $7,047,510,644
- Share change
- -1,146,713
- Put/Call ratio
- 57%
- SEC-reported price per share
- $153.97
- Number of holders
- 337
- Value change
- -$154,748,553
- Number of buys
- 154
- Number of sells
- 166
- Shares outstanding
- 76,293,275
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
Q2 2019
Institutions
337
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 - Common Stock (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 Mar 2019
13F
Lead comparable stake: 4.6%
Showing 1-6 of 15 holder rows.
Quick read
WELLINGTON MANAGEMENT GROUP LLP leads the comparable SEC ownership view at 4.6%.
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
4.6%
WCM INVESTMENT MANAGEMENT, LLC
4.3%
Clearbridge Investments, LLC
3.1%
RENAISSANCE TECHNOLOGIES LLC
2.9%
ACADIAN ASSET MANAGEMENT LLC
2.8%
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
|
4.6%
|
$474,206,000
3,471,998 shares
|
— | 31 Mar 2019 |
| WCM INVESTMENT MANAGEMENT, LLC |
13F
Company
|
4.3%
|
$453,189,000
3,318,129 shares
|
— | 31 Mar 2019 |
| Clearbridge Investments, LLC |
13F
Company
|
3.1%
|
$321,378,000
2,353,035 shares
|
— | 31 Mar 2019 |
| RENAISSANCE TECHNOLOGIES LLC |
13F
Company
|
2.9%
|
$303,366,000
2,221,160 shares
|
— | 31 Mar 2019 |
| ACADIAN ASSET MANAGEMENT LLC |
13F
Company
|
2.8%
|
$293,400,000
2,148,190 shares
|
— | 31 Mar 2019 |
| EARNEST PARTNERS LLC |
13F
Company
|
2.8%
|
$292,198,000
2,139,391 shares
|
— | 31 Mar 2019 |
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 Q2 2019
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
337
Shares
45,774,902
Rows available
337
| 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 Q2 2019 vs Q1 2019 Across Filers
Q1 2019 holders
349
Q2 2019 holders
337
Holder diff
-12
| Investor | Q1 2019 Shares | Q2 2019 Shares | Share Diff | Share Chg % | Q1 2019 value | Q2 2019 value | Value change | Value Chg % |
|---|