Arch Capital Group Ltd. (ACGL) ownership: Baron Capital Group, Inc. 8% · institutions 93% (13F 2026-03-31). Insider activity, 90 days: 1 sales, 0 open-market buys. 4 recent congressional STOCK Act disclosures. SEC EDGAR first-party data.
| Holder | Shares | Market Value | % Outstanding | Reported |
|---|---|---|---|---|
| Vanguard | 40957410.00 | $3.93B | 11.7% | 2026-03-31 |
| BlackRock | 31354204.00 | $3.01B | 9.0% | 2026-03-31 |
| Artisan Partners | 22666011.00 | $2.18B | 6.5% | 2026-03-31 |
| Bamco Inc | 16709759.00 | $1.60B | 4.8% | 2026-03-31 |
| State Street | 16250722.00 | $1.56B | 4.7% | 2026-03-31 |
| WCM Investment Management, LLC | 12602412.00 | $1.21B | 3.6% | 2026-03-31 |
| Geode Capital Management | 10586271.00 | $1.01B | 3.0% | 2026-03-31 |
| JPMorgan | 6781647.00 | $648.46M | 1.9% | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-08-18 | |
| Sell | null | 2026-08-18 | |
| Sell | null | 2026-08-18 | |
| Sell | null | 2026-06-11 | |
| Sell | null | 2026-06-03 | |
| Sell | null | 2026-05-11 | |
| Sell | null | 2026-05-11 | |
| Sell | null | 2026-05-05 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.