Arch Capital Group
ACGL · NASDAQ
Who owns ACGL
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 41.6% of ACGL’s shares.
- Vanguard Capital Management, LLC6.5%
- Artisan Partners Limited Partnership6.3%
- BlackRock Institutional Trust Company, N.A.5.7%
- State Street Investment Management (US)4.8%
- Next 6 largest institutions18.3%
- All other shareholders58.4%
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Capital Management, LLC | 22.22M | 6.52% |
| Artisan Partners Limited Partnership | 21.60M | 6.33% |
| BlackRock Institutional Trust Company, N.A. | 19.51M | 5.72% |
| State Street Investment Management (US) | 16.25M | 4.77% |
| Baron Capital Management, Inc. | 15.87M | 4.65% |
| Vanguard Portfolio Management, LLC | 14.53M | 4.26% |
| WCM Investment Management | 11.97M | 3.51% |
| Geode Capital Management, L.L.C. | 10.51M | 3.08% |
| Pasquesi (John Murray) | 4.86M | 1.42% |
| Norges Bank Investment Management (NBIM) | 4.68M | 1.37% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Artisan International Value Fund | 16.35M | 4.80% |
| Vanguard Total Stock Market Index Fund | 10.57M | 3.10% |
| Vanguard 500 Index Fund | 9.13M | 2.68% |
| Vanguard Mid-Cap Index Fund | 7.18M | 2.11% |
| Statens Pensjonsfond Utland | 6.80M | 1.99% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders bought $498.65K (1 trade) and sold $1.19M (3 trades) of ACGL on the open market.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Morin Francois | Option exercise | 11.01K | — |
| Morin Francois | Sale | 11.01K | $1.09M |
| Morin Francois | Option exercise | 11.01K | $298.22K |
| PASQUESI JOHN M | Gift | 1.01M | — |
| PASQUESI JOHN M | Gift | 1.01M | — |
| Posner Brian S | Sale | 3.00K | $58.98K |
| Posner Brian S | Sale | 2.00K | $34.28K |
| Ebong Francis | Award | 2.07K | — |
| KILCOYNE MOIRA A. | Award | 1.33K | — |
| KILCOYNE MOIRA A. | Award | 2.07K | — |
Congressional trades
Disclosed by members of Congress over the last 12 months
| Member | Type | Amount | Traded |
|---|---|---|---|
| Alan ArmstrongSenator | Purchase | $1K–$15K | Mar 27, 2026 |
| Ro KhannaHouse | Sale | $1K–$15K | Nov 3, 2025 |
Short interest
Settled Sep 30, 2026
- Shares short
- 7.68M
- Days to cover
- 1.63
- % of shares outstanding
- 2.25%
- Average daily volume
- 4.70M
- Change since last report
- +5.8%
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