Arch Capital Group Ltd.
Ownership
Ownership Structure
Who owns Arch Capital Group Ltd. (ACGL)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 95.8% of the shares are freely tradable; institutional investors hold 94.9%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 8.87 | 30,220,703 | -3.6 | 06/30/2026 |
| Vanguard Capital Management, LLC | 6.52 | 22,221,428 | -1.7 | 06/30/2026 |
| Artisan Partners Limited Partnership | 6.34 | 21,595,895 | -4.7 | 06/30/2026 |
| State Street Corp | 4.77 | 16,251,212 | +0.0 | 06/30/2026 |
| BAMCO Inc | 4.66 | 15,872,450 | -5.0 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 4.26 | 14,527,363 | -1.3 | 06/30/2026 |
| WCM Investment Management | 3.51 | 11,973,574 | -5.0 | 06/30/2026 |
| Geode Capital Management, LLC | 3.08 | 10,507,722 | -0.7 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Artisan International Value Investor | 4.80 | 16,354,588 | -1.9 | 06/30/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 3.01 | 10,268,609 | -2.6 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Morin Francois | CFO and Treasurer | 184,826 | 20,201,482 $ | Aug 18, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 18, 2026 | Morin Francois | CFO and Treasurer | Sell | 11,010 | 99.32 | 1,093,529 |
| Aug 18, 2026 | Morin Francois | CFO and Treasurer | Other | 11,010 | 27.09 | 298,225 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: November 2, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.