Arch Capital Group
Underwrites specialty insurance, reinsurance, and mortgage insurance across global markets.
$97.15
After-hours close−1.69 (−1.71%)
At close$98.84(+0.08%)
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Breakdown13F · Form 4
Institutions 103.57%Insiders 1.20%
A 13F quarter can total more than the shares outstanding — sub-advisers file the same block twice, and a filer's own share count can be a quarter stale. No split is drawn from it.
Shares outstanding 349.39M · Float 339.91M · 97.3% free float
Institutions13F, as of Jun 30, 2026
923 holders · 361.87M shares · 108 new positions · 426 increased · 374 reduced · 119 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 30.22M | 8.65% | −1.13M | Aug 7, 2026 |
| Vanguard Capital Management LLC | 22.22M | 6.36% | −391.2K | Aug 13, 2026 |
| Artisan Partners Limited Partnership | 21.60M | 6.18% | −1.07M | Aug 13, 2026 |
| State Street Corp | 16.25M | 4.65% | +490 | Aug 7, 2026 |
| Bamco Inc /NY/ | 15.87M | 4.54% | −837.3K | Aug 14, 2026 |
| Vanguard Portfolio Management LLC | 14.53M | 4.16% | −185.5K | Aug 13, 2026 |
| WCM Investment Management, LLC | 11.97M | 3.43% | −628.8K | Aug 13, 2026 |
| Geode Capital Management, LLC | 10.51M | 3.01% | −78.5K | Aug 12, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Vanguard Capital Management | 7.33% | 26.14M | 13G | Apr 29, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| John L. Jr Bunce | director | 1.56M | 0.45% | May 7, 2026 |
| Nicolas Papadopoulo | director, officer: CEO | 871.6K | 0.25% | Mar 12, 2026 |
| Maamoun Rajeh | officer: President, Arch Capital Group | 469.0K | 0.13% | Mar 6, 2026 |
| David Gansberg | officer: President, Arch Capital Group | 336.6K | 0.10% | Mar 12, 2026 |
| John M. Pasquesi | director, other: CHAIR | 217.1K | 0.06% | Jun 15, 2026 |
| John D. Vollaro | director | 192.8K | 0.06% | Nov 3, 2025 |
| Francois Morin | officer: CFO and Treasurer | 184.8K | 0.05% | Aug 20, 2026 |
| Louis T. Petrillo | officer: Officer of Subsidiary | 151.6K | 0.04% | Mar 5, 2026 |
| Christine Todd | officer: Chief Investment Officer | 100.2K | 0.03% | Mar 5, 2026 |
| Laurie Goodman | director | 37.6K | 0.01% | May 7, 2026 |
2 ten-percent owners hold 36.03M shares by Form 4, outside the officers-and-directors figure above · 25 people have not refiled in the last 18 months (13.85M shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Aug 18, 2026 | Francois Morinofficer: CFO and Treasurer | Sale | 11,010 | $99.32 | 184,826 |
| Jun 3, 2026 | Brian S. Posnerdirector | Sale | 3,000 | $19.66 | 0 |
| May 11, 2026 | Brian S. Posnerdirector | Sale | 2,000 | $17.14 | 0 |
| Apr 30, 2026 | Daniel Joseph Houstondirector | Purchase | 5,300 | $94.09 | 9,915 |
| Mar 10, 2026 | Nicolas Papadopoulodirector, officer: CEO | Sale | 21,930 | $96.31 | 871,594 |
| Mar 10, 2026 | David Gansbergofficer: President, Arch Capital Group | Sale | 5,907 | $96.37 | 336,559 |
| Mar 11, 2026 | Brian S. Posnerdirector | Sale | 3,000 | $17.12 | 2,000 |
| Feb 11, 2026 | Maamoun Rajehofficer: President, Arch Capital Group | Sale | 47,430 | $96.12 | 433,589 |
| Dec 15, 2025 | John M. Pasquesidirector, other: CHAIR | Sale | 8,800 | $94.17 | 289,556 |
| Dec 12, 2025 | John M. Pasquesidirector, other: CHAIR | Sale · 2 lots | 203,866 | $93.90 | 351,356 |
CongressHouse and Senate disclosures
| Member | Type | Amount | Owner | Traded | Disclosed |
|---|---|---|---|---|---|
| Rep. Ro Khanna · CA17 | Purchase | $1,001 – $15,000 | May 1, 2026 | Jun 11, 2026 ↗ |