Arch Capital Group Ltd. (ACGL) Shareholders & Insider Trades
Arch Capital Group shareholders at a glance
The largest holder of Arch Capital Group stock is BlackRock Advisors LLC, with 22.5 million shares (6.59% of the company), worth about $2.21 billion as of September 25, 2026. The 10 largest holders together own 43.8%.
In Q2 2026, 939 institutional holdings reports listed shares worth $32.00 billion.
Insiders reported 79 transactions in the last two years: 11 sales worth $43.64 million and 1 purchase. The newest one on file is from May 5, 2026 (Pasquesi John Murray, Chairman of the Board).
Major holders as of September 25, 2026; quarterly totals from institutional holdings reports (latest Q2 2026); insider transactions on file through May 5, 2026.
Arch Capital Group Ltd.
Shareholders Summary
2026Q2
Ownership by Type
Geographic Distribution
Largest Arch Capital Group shareholders
| Holder | Shares | % of company | Value |
|---|---|---|---|
| BlackRock Advisors LLC | 22.5 million | 6.59% | $2.2B |
| Vanguard Capital Management LLC | 22.2 million | 6.51% | $2.2B |
| Artisan Partners Holdings LP | 21.6 million | 6.33% | $2.1B |
| State Street Corporation | 16.3 million | 4.76% | $1.6B |
| BAMCO, Inc. | 15.9 million | 4.65% | $1.6B |
| Vanguard Portfolio Management LLC | 14.5 million | 4.26% | $1.4B |
| WCM Investment Management LLC | 12.0 million | 3.51% | $1.2B |
| Geode Capital Management LLC | 10.5 million | 3.08% | $1.0B |
| BlackRock Life Ltd. | 7.1 million | 2.09% | $700.0M |
| JPMorgan Investment Management, Inc. | 7.0 million | 2.05% | $686.0M |
As of September 25, 2026.
Arch Capital Group institutional holdings by quarter
| Quarter | Reports | Shares | Value |
|---|---|---|---|
| Q2 2026 | 939 | – | $32.0B |
| Q1 2026 | 935 | 318.0 million | $30.5B |
| Q4 2025 | 944 | 326.0 million | $31.2B |
| Q3 2025 | 869 | 335.0 million | $30.3B |
| Q2 2025 | 883 | 341.0 million | $31.0B |
| Q1 2025 | 883 | 335.0 million | $32.2B |
| Q4 2024 | 878 | 342.0 million | $31.6B |
| Q3 2024 | 882 | 341.0 million | $38.1B |
Shares and value held by institutions that file quarterly holdings reports (options not included).
Arch Capital Group insider trades
| Insider | Date | Title | Transaction | Value |
|---|---|---|---|---|
| Pasquesi John Murray | May 5, 2026 | Chairman of the Board | Stock Award(Grant) at price 0.00 per share. | – |
| Mallesch Eileen A | May 5, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Moczarski Alexander S | May 5, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Bunce John L Jr | May 5, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Posner Brian S. | May 5, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Houston Daniel Joseph | May 5, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Goodman Laurie S | May 5, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Kilcoyne Moira A. | May 5, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Ebong Francis | May 5, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Triplett Neal F. | May 5, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Houston Daniel Joseph | Apr 30, 2026 | Director | Purchase at price 94.08 per share. | $498,650 |
| Papadopoulo Nicolas | Mar 10, 2026 | Chief Executive Officer | Conversion of Exercise of derivative security at price 18.90 per share. | $414,477 |
Newest 12 of 79 insider transactions in the last two years.
Questions and answers
Who owns the most Arch Capital Group stock?
BlackRock Advisors LLC, with 6.59% of the company (as of September 25, 2026). Next: Vanguard Capital Management LLC (6.51%) and Artisan Partners Holdings LP (6.33%).
How many institutions own Arch Capital Group stock?
939 institutional holdings reports listed Arch Capital Group shares in Q2 2026 worth $32.00 billion.
Are Arch Capital Group insiders buying or selling the stock?
In the last two years insiders reported 11 sales and 1 purchase (79 transactions in all); the newest on file is from May 5, 2026.
