798 tracked 13F filers disclose a position in ACGL as of the latest SEC 13F filings, a combined $26.3B in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | $3.0B | 31.4M | ▼−1.2% Reduced · −381K sh | Q1 2026 | |
| 2 | Artisan Partners Limited Partnership | $2.2B | 22.7M | ▼−2.5% Reduced · −582K sh | Q1 2026 | |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | $2.2B | 22.6M | →First observed position No prior filed position | Q1 2026 | |
| 4 | STATE STREET CORP | $1.6B | 16.3M | ▲~0% Added · +490 sh | Q2 2026 | |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | $1.4B | 14.7M | →First observed position No prior filed position | Q1 2026 | |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | $1.0B | 10.5M | ▼−0.7% Reduced · −79K sh | Q2 2026 | |
| 7 | JPMORGAN CHASE & CO | $648.5M | 6.8M | ▲+0.6% Added · +40K sh | Q1 2026 | |
| 8 | NORGES BANK | $463.2M | 4.8M | ▼−0.4% Reduced · −20K sh | Q4 2025 | |
| 9 | NORTHERN TRUST CORP | $429.3M | 4.5M | ▼−3.5% Reduced · −162K sh | Q1 2026 | |
| 10 | MORGAN STANLEY | $409.0M | 4.3M | ▼−0.7% Reduced · −29K sh | Q1 2026 | |
| 11 | DIMENSIONAL FUND ADVISORS LP | $400.6M | 4.2M | ▲+2.9% Added · +118K sh | Q1 2026 | |
| 12 | Allspring Global Investments Holdings, LLC | $408.0M | 4.1M | ▲+14% Added · +508K sh | Q2 2026 | |
| 13 | Madison Asset Management, LLC | $368.8M | 3.8M | ▼−6.8% Reduced · −277K sh | Q2 2026 | |
| 14 | ROYAL BANK OF CANADA | $339.0M | 3.5M | ▲+4.7% Added · +158K sh | Q1 2026 | |
| 15 | Legal & General Group Plc | $315.6M | 3.3M | ▲+12% Added · +344K sh | Q1 2026 | |
| 16 | PRINCIPAL FINANCIAL GROUP INC | $314.3M | 3.3M | ▼−28% Reduced · −1.3M sh | Q1 2026 | |
| 17 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME | $305.2M | 3.2M | ▲+1.2% Added · +39K sh | Q1 2026 | |
| 18 | MARSHFIELD ASSOCIATES | $292.9M | 3.1M | ▲+5.7% Added · +164K sh | Q1 2026 | |
| 19 | Polar Capital Holdings Plc | $289.2M | 3.0M | ▼−9.7% Reduced · −320K sh | Q2 2026 | |
| 20 | GOLDMAN SACHS GROUP INC | $274.5M | 2.9M | ▼−3.1% Reduced · −90K sh | Q1 2026 | |
| 21 | AQR CAPITAL MANAGEMENT LLC | $260.7M | 2.7M | ▲+2.3% Added · +61K sh | Q1 2026 | |
| 22 | FIRST TRUST ADVISORS LP | $252.1M | 2.6M | ▲+320% Added · +2.0M sh | Q1 2026 | |
| 23 | High Ground Investment Management LLP | $253.6M | 2.6M | ▲+46% Added · +819K sh | Q2 2026 | |
| 24 | COOKE & BIELER LP | $214.8M | 2.2M | ▼−15% Reduced · −397K sh | Q1 2026 | |
| 25 | ENVESTNET ASSET MANAGEMENT INC | $213.3M | 2.2M | ▲+6.2% Added · +130K sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
Last quarter, 1 fund opened a new position in ACGL and 20 added to an existing one, while 24 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 485 funds | $307.0B |
| AMAZON.COM INCAMZN | 480 funds | $227.8B |
| NVIDIA CORPNVDA | 479 funds | $441.9B |
| APPLE INCAAPL | 477 funds | $342.6B |
| ALPHABET INC-CL AGOOGL | 475 funds | $198.2B |
| JPMORGAN CHASE & COJPM | 475 funds | $77.2B |
| META PLATFORMS INC-CLASS AMETA | 473 funds | $129.0B |
| ALPHABET INC-CL CGOOG | 466 funds | $143.6B |
| VISA INC-CLASS A SHARESV | 462 funds | $72.0B |
| BROADCOM INCAVGO | 458 funds | $179.3B |
| ELI LILLY & COLLY | 455 funds | $86.7B |
| MASTERCARD INC - AMA | 452 funds | $62.1B |
Ranked by how many of ACGL's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Aug 18, 2026 | Morin Francois | CFO and Treasurer | Sell (S) | 11K | $1.1M |
| Jun 3, 2026 | Posner Brian S | Director | Sell (S) | 3K | $59K |
| May 11, 2026 | Posner Brian S | Director | Sell (S) | 2K | $34K |
| Apr 30, 2026 | Houston Daniel Joseph | Director | Buy (P) | 5K | $499K |
| Mar 11, 2026 | Posner Brian S | Director | Sell (S) | 3K | $51K |
| Mar 10, 2026 | Papadopoulo Nicolas | CEO, Director | Sell (S) | 22K | $2.1M |
| Mar 10, 2026 | Gansberg David | President, Arch Capital Group | Sell (S) | 6K | $569K |
| Feb 11, 2026 | Rajeh Maamoun | President, Arch Capital Group | Sell (S) | 47K | $4.6M |
| Dec 15, 2025 | PASQUESI JOHN M | Director | Sell (S) | 9K | $829K |
| Dec 12, 2025 | PASQUESI JOHN M | Director | Sell (S) | 29K | $2.7M |
| Dec 12, 2025 | PASQUESI JOHN M | Director | Sell (S) | 175K | $16.4M |
| Nov 28, 2025 | Morin Francois | EVP AND CFO | Sell (S) | 8K | $757K |
Connected entities for ACGL
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/ACGL/capital-change-brief"
Use Arkolith's capital_change_brief for ACGL. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for ACGL. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.