Security key
G4705A100
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 46,301,787
- Total 13F value
- $7,974,204,313
- Share change
- -587,372
- Put/Call ratio
- 66%
- SEC-reported price per share
- $172.23
- Number of holders
- 362
- Value change
- -$90,528,350
- Number of buys
- 161
- Number of sells
- 163
- 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
Q4 2019
Institutions
362
Top holders
10
ICLR full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2026
ICON PLC SEC filings
ICON PLC company facts
Broader feeds
Reporting periods
Holder history for CUSIP G4705A100
Recent filing periods:
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
WCM INVESTMENT MANAGEMENT...
Disclosed value leader
WCM INVESTMENT MANAGEMENT...
Comparable rows
0/15
Latest evidence
30 Sep 2019
13F
Highest disclosed value: $529,691,000
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
WCM INVESTMENT MANAGEMENT, LLC has the largest disclosed position value at $529.69M.
0 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 WCM INVESTMENT MANAGEMENT, LLC's linked filing trail.
Disclosed position value
Top 5
WCM INVESTMENT MANAGEMENT, LLC
$529.69M
WELLINGTON MANAGEMENT GROUP LLP
$472.47M
Clearbridge Investments, LLC
$393.21M
RENAISSANCE TECHNOLOGIES LLC
$340.5M
ALLIANCEBERNSTEIN L.P.
$319.88M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| WCM INVESTMENT MANAGEMENT, LLC |
13F
Company
|
—
denominator unverified
|
$529,691,000
3,595,030 shares
|
— | 30 Sep 2019 |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
Company
|
—
denominator unverified
|
$472,470,000
3,206,665 shares
|
— | 30 Sep 2019 |
| Clearbridge Investments, LLC |
13F
Company
|
—
denominator unverified
|
$393,214,000
2,668,750 shares
|
— | 30 Sep 2019 |
| RENAISSANCE TECHNOLOGIES LLC |
13F
Company
|
—
denominator unverified
|
$340,497,000
2,310,960 shares
|
— | 30 Sep 2019 |
| ALLIANCEBERNSTEIN L.P. |
13F
Company
|
—
denominator unverified
|
$319,881,000
2,171,042 shares
|
— | 30 Sep 2019 |
| ACADIAN ASSET MANAGEMENT LLC |
13F
Company
|
—
denominator unverified
|
$314,818,000
2,136,689 shares
|
— | 30 Sep 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 Q4 2019
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
362
Shares
46,301,787
Rows available
362
| 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 Q4 2019 vs Q3 2019 Across Filers
Q3 2019 holders
354
Q4 2019 holders
362
Holder diff
8
| Investor | Q3 2019 Shares | Q4 2019 Shares | Share Diff | Share Chg % | Q3 2019 value | Q4 2019 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend