ARCH CAPITAL GROUP LTD. ACGL
CIK 0000947484 · CUSIP G0450A105
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | VANGUARD GROUP INC CIK 102909 · View history | $3.96B 41,288,784 shares | 0.06% | -1.02M(-2.4%)Reduced | SEC filing ↗ Jan 29, 2026 | ▾ |
| 02 | BlackRock, Inc. CIK 2012383 · View history | $3.04B 31,735,316 shares | 0.05% | -727.52K(-2.2%)Reduced | SEC filing ↗ Feb 12, 2026 | ▾ |
| 03 | Artisan Partners Limited Partnership CIK 1466153 · View history | $2.23B 23,247,700 shares | 3.41% | -390.41K(-1.7%)Reduced | SEC filing ↗ Feb 17, 2026 | ▾ |
| 04 | BAMCO INC /NY/ CIK 1017918 · View history | $1.73B 17,987,505 shares | 4.67% | -772.15K(-4.1%)Reduced | SEC filing ↗ Feb 17, 2026 | ▾ |
| 05 | STATE STREET CORP CIK 93751 · View history | $1.58B 16,451,086 shares | 0.05% | -317.11K(-1.9%)Reduced | SEC filing ↗ Feb 13, 2026 | ▾ |
| 06 | WCM INVESTMENT MANAGEMENT, LLC CIK 1061186 · View history | $1.28B 13,283,915 shares | 2.64% | -241.49K(-1.8%)Reduced | SEC filing ↗ Feb 9, 2026 | ▾ |
| 07 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $1.00B 10,466,550 shares | 0.06% | -227.14K(-2.1%)Reduced | SEC filing ↗ Feb 9, 2026 | ▾ |
| 08 | JPMORGAN CHASE & CO CIK 19617 · View history | $646.63M 6,741,396 shares | 0.04% | -1.45M(-17.7%)Reduced | SEC filing ↗ Feb 11, 2026 | ▾ |
| 09 | NORGES BANK CIK 1374170 · View history | $463.21M 4,829,107 shares | 0.05% | +4.83MNew | SEC filing ↗ Feb 10, 2026 | ▾ |
| 10 | NORTHERN TRUST CORP CIK 73124 · View history | $444.52M 4,634,323 shares | 0.06% | -239.81K(-4.9%)Reduced | SEC filing ↗ Feb 17, 2026 | ▾ |
| 11 | PRINCIPAL FINANCIAL GROUP INC CIK 1126328 · View history | $434.34M 4,528,160 shares | 0.22% | -620.23K(-12.0%)Reduced | SEC filing ↗ Feb 2, 2026 | ▾ |
| 12 | Madison Asset Management, LLC CIK 1299351 · View history | $415.57M 4,332,431 shares | 4.78% | -375.52K(-8.0%)Reduced | SEC filing ↗ Feb 4, 2026 | ▾ |
| 13 | MORGAN STANLEY CIK 895421 · Amended · View history | $411.41M 4,289,082 shares | 0.02% | +33.13K(+0.8%)Added | SEC filing ↗ May 27, 2026 | ▾ |
| 14 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $389.07M 4,055,956 shares | 0.08% | -78.97K(-1.9%)Reduced | SEC filing ↗ Feb 12, 2026 | ▾ |
| 15 | Invesco Ltd. CIK 914208 · Amended · View history | $370.39M 3,861,473 shares | 0.03% | -203.88K(-5.0%)Reduced | SEC filing ↗ Feb 19, 2026 | ▾ |
| 16 | Allspring Global Investments Holdings, LLC CIK 1890906 · View history | $344.09M 3,665,969 shares | 0.56% | -105.66K(-2.8%)Reduced | SEC filing ↗ Jan 15, 2026 | ▾ |
| 17 | ROYAL BANK OF CANADA CIK 1000275 · View history | $323.60M 3,373,663 shares | 0.06% | -405.79K(-10.7%)Reduced | SEC filing ↗ Feb 17, 2026 | ▾ |
| 18 | Polar Capital Holdings Plc CIK 1837309 · View history | $319.41M 3,330,000 shares | 1.46% | -50.50K(-1.5%)Reduced | SEC filing ↗ Feb 17, 2026 | ▾ |
| 19 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC CIK 861177 · View history | $301.25M 3,140,590 shares | 0.06% | -190.01K(-5.7%)Reduced | SEC filing ↗ Feb 13, 2026 | ▾ |
| 20 | GOLDMAN SACHS GROUP INC CIK 886982 · Amended · View history | $282.99M 2,950,322 shares | 0.04% | +160.67K(+5.8%)Added | SEC filing ↗ Mar 25, 2026 | ▾ |
Showing 20 / 922 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
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