# ICON PLC SHS

ICON PLC SHS is a security (CUSIP G4705A100) tracked across SEC portfolio filings. 445 institutional managers reported $9.3B on Form 13F as of 2026-06-30; 15 registered fund positions totaling $660.6M via N-PORT as of 2026-04-30.

## Summary

- Issuer: ICON PLC
- Class: SHS
- CUSIP: G4705A100
- Asset category: EC
- 13F holders: 445
- 13F value: $9.3B
- 13F period: 2026-06-30
- N-PORT fund positions: 15
- N-PORT value: $660.6M
- N-PORT report: 2026-04-30

## Top institutional holders (Form 13F)

_Showing 15 of 445 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [Artisan Partners Limited Partnership](https://search.stillhousedata.com/firm/150114) | Milwaukee, WI | $916.1M | 8,278,945 |
| WELLINGTON MANAGEMENT GROUP LLP | BOSTON, MA | $654.3M | 5,913,037 |
| GREENHAVEN ASSOCIATES INC | Purchase, NY | $538.6M | 3,100,615 |
| PRINCIPAL FINANCIAL GROUP INC | DES MOINES, IA | $512.6M | 2,950,974 |
| [HARRIS ASSOCIATES L P](https://search.stillhousedata.com/firm/106960) | CHICAGO, IL | $481.5M | 4,351,317 |
| FMR LLC | BOSTON, MA | $461.9M | 4,174,006 |
| [MASSACHUSETTS FINANCIAL SERVICES CO /MA/](https://search.stillhousedata.com/firm/110045) | Boston, MA | $369.4M | 2,105,171 |
| [Brave Warrior Advisors, LLC](https://search.stillhousedata.com/firm/108894) | New York, NY | $331.6M | 2,996,811 |
| Boston Partners | BOSTON, MA | $281.4M | 1,620,730 |
| Trinity Street Asset Management LLP | LONDON, X0 | $266.7M | 1,535,462 |
| [ALLIANCEBERNSTEIN L.P.](https://search.stillhousedata.com/firm/108477) | NASHVILLE, TN | $245.0M | 1,344,595 |
| [Ruane, Cunniff & Goldfarb L.P.](https://search.stillhousedata.com/firm/285971) | New York, NY | $180.9M | 1,634,611 |
| BRANDES INVESTMENT PARTNERS, LP | LA JOLLA, CA | $158.8M | 1,435,053 |
| [Madison Avenue Partners, LP](https://search.stillhousedata.com/firm/298610) | NEW YORK, NY | $142.0M | 1,282,838 |
| D. E. Shaw & Co., Inc. | New York, NY | $136.4M | 1,198,555 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD HEALTH CARE FUND](https://search.stillhousedata.com/fund/S000002922) | VANGUARD SPECIALIZED FUNDS | $182.0M | 49.38% |
| [VANGUARD WINDSOR FUND](https://search.stillhousedata.com/fund/S000004417) | VANGUARD WINDSOR FUNDS | $141.7M | 58.43% |
| [Invesco Small Cap Value Fund](https://search.stillhousedata.com/fund/S000027837) | AIM Sector Funds (Invesco Sector Funds) | $123.4M | 114.73% |
| [VANGUARD EXPLORER FUND](https://search.stillhousedata.com/fund/S000002578) | VANGUARD EXPLORER FUND | $118.0M | 54.20% |
| [VANGUARD GROWTH AND INCOME FUND](https://search.stillhousedata.com/fund/S000002913) | VANGUARD QUANTITATIVE FUNDS | $40.8M | 24.75% |
| [SOUND SHORE FUND](https://search.stillhousedata.com/fund/S000004519) | SOUND SHORE FUND, INC. | $40.5M | 440.08% |
| [Bridge Builder Tax Managed Small/Mid Cap Fund](https://search.stillhousedata.com/fund/S000076295) | Bridge Builder Trust | $6.9M | 22.60% |
| [Heartland Value Plus Fund](https://search.stillhousedata.com/fund/S000003524) | HEARTLAND GROUP INC. | $3.3M | 113.04% |
| Nuveen S&P 500 Buy-Write Income Fund | Nuveen S&P 500 Buy-Write Income Fund | $962K | 5.74% |
| [Brandes Global Equity Fund](https://search.stillhousedata.com/fund/S000084887) | Datum One Series Trust | $926K | 110.43% |
| Source Capital | SOURCE CAPITAL /DE/ | $910K | 23.27% |
| [Janus Henderson Mid Cap Value Portfolio](https://search.stillhousedata.com/fund/S000010397) | JANUS ASPEN SERIES | $497K | 42.00% |
| [TIFF MULTI-ASSET FUND](https://search.stillhousedata.com/fund/S000006387) | TIFF Investment Program | $439K | 3.15% |
| [THRIVENT CONSERVATIVE ALLOCATION PORTFOLIO](https://search.stillhousedata.com/fund/S000001434) | Thrivent Series Fund, Inc. | $189K | 3.34% |
| The Pre-IPO and Growth Fund | The Pre-IPO and Growth Fund | $66K | 5.38% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/g4705a100.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.