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Of the 12 tracked institutions holding ICLR, 6 have a 3-year clone track record — 5 of them beat the S&P. Average holder's clone alpha: +4.8pt. It's a gauge of who owns the name, not just how many.
Among the 12 tracked institutional investors we monitor, ICLR (ICON PUB LTD CO) is held with a combined value of $2.93B across 16,846,508 shares. The largest holder is WELLINGTON MANAGEMENT GROUP LLP with a position worth $924.15M (0.16% of their portfolio). 3 funds opened new positions in the most recent quarter. 5 funds increased their holdings. 4 funds reduced their position.
Total Institutional Value
$2.93B
Total Shares Held
16,846,508
Institutional Holders
12
% of Shares Outstanding
22.0%
of 76.57M shares · SEC 2025-12-31
Days to Cover
3.5-0.1%
2.22M shares short · FINRA 2026-08-14
Tracked 13F institutions hold 22.0% of ICLR's shares outstanding. This is a floor: 13F filings arrive on a ~45-day lag and we track only a subset of institutional filers, so true institutional ownership is higher. Shares-outstanding is the latest SEC cover-page figure (as of 2025-12-31), not a live float.
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | WELLINGTON MANAGEMENT GROUP LLP | $924.15M | 0.16% | -10.0% |
| 2 | FMR LLC | $915.68M | 0.04% | +26.3% |
| 3 | HARRIS ASSOCIATES L P | $776.16M | 1.03% | +2.7% |
| 4 | BlackRock, Inc. | $92.92M | 0.00% | +29.3% |
| 5 | STATE STREET CORP | $76.06M | 0.00% | -4.2% |
| 6 | Point72 Asset Management, L.P. | $63.57M | 0.10% | +3610.3% |
| 7 | PRICE T ROWE ASSOCIATES INC /MD/ | $26.75M | 0.00% | New |
| 8 | CITADEL ADVISORS LLC | $25.81M | 0.01% | -41.0% |
| 9 | VANGUARD GROUP INC | $16.67M | 0.00% | +3.3% |
| 10 | MILLENNIUM MANAGEMENT LLC | $8.42M | 0.01% | -16.1% |
| Member | Type | Date |
|---|---|---|
| Kevin Hern | Sell | Aug 14, 2026 |
| Kevin Hern | Sell | Mar 5, 2026 |
| Julia Letlow | Sell | Feb 12, 2026 |
| John James | Sell |
As of the latest SEC 13F filings, WELLINGTON MANAGEMENT GROUP LLP is the largest institutional holder of ICLR with a position worth $924.15M, representing 0.16% of their portfolio. In total, 12 institutional investors hold ICLR with a combined value of $2.93B.
In the most recent quarter, 3 funds opened a new position in ICLR. Additionally, 5 increased their holdings and 4 reduced their positions.
Institutional investors hold $2.93B worth of ICLR stock across 12 positions. The largest institutional holder is WELLINGTON MANAGEMENT GROUP LLP with $924.15M in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For ICLR, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their ICLR positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
| 2026-08-06 |
SEC Schedule 13D (activist) and 13G (passive) filings for ICLR. Filed when an investor acquires 5%+ ownership.
| Sep 4, 2024 |
| John James | Buy | Jun 12, 2024 |
Last Close
$159.51
2026-09-09
YTD
-15.5%
65% of 52-week range
