ARX Accelerant Holdings
Accelerant Holdings (ARX) Institutional Ownership
What the institutions did with ARX last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| SECURITY BENEFIT LIFE INSURANCE CO /KS/ | 5.9M | 9.1% |
| FMR LLC | 5.6M | 8.7% |
| Capital World Investors | 4.6M | 7.2% |
| Keenan Capital, LLC | 4.0M | 6.2% |
| AMERICAN CENTURY COMPANIES INC | 3.9M | 6.0% |
| GILDER GAGNON HOWE & CO LLC | 3.7M | 5.8% |
| BlackRock, Inc. | 3.5M | 5.4% |
| BARINGS LLC | 3.1M | 4.9% |
| Azora Capital LP | 3.0M | 4.7% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2.4M | 3.8% |
| JPMORGAN CHASE & CO | 2.2M | 3.4% |
| GOLDMAN SACHS GROUP INC | 2.0M | 3.1% |
| Cresset Asset Management, LLC | 1.8M | 2.9% |
| CITADEL ADVISORS LLC | 1.7M | 2.7% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.7M | 2.6% |
| ALLIANCEBERNSTEIN L.P. | 1.4M | 2.2% |
| Owls Nest Partners IA, LLC | 1.3M | 1.9% |
| MARSHALL WACE, LLP | 1.1M | 1.7% |
| JANE STREET GROUP, LLC | 952.1K | 1.5% |
| STATE STREET CORP | 900.8K | 1.4% |
| GEODE CAPITAL MANAGEMENT, LLC | 809.6K | 1.3% |
| G2 Investment Partners Management LLC | 640.0K | 1.0% |
| BANK OF AMERICA CORP /DE/ | 603.9K | 0.9% |
| UBS Group AG | 554.4K | 0.9% |
| Walleye Capital LLC | 541.3K | 0.8% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| FMR LLC | Increased | 1.8M | 5.6M | +3.8M |
| BlackRock, Inc. | Increased | 165.6K | 3.5M | +3.3M |
| GOLDMAN SACHS GROUP INC | Increased | 41.7K | 2.0M | +2.0M |
| ALLIANCEBERNSTEIN L.P. | Reduced | 2.8M | 1.4M | -1.4M |
| BAMCO INC /NY/ | Sold Out | 1.2M | 0 | -1.2M |
| MARSHALL WACE, LLP | Reduced | 2.3M | 1.1M | -1.2M |
| ArrowMark Colorado Holdings LLC | Reduced | 1.5M | 477.2K | -1.1M |
| Azora Capital LP | Increased | 2.0M | 3.0M | +1.1M |
| Owls Nest Partners IA, LLC | Increased | 209.7K | 1.3M | +1.0M |
| T. Rowe Price Investment Management, Inc. | Sold Out | 975.9K | 0 | -975.9K |
| STATE STREET CORP | Increased | 37.3K | 900.8K | +863.5K |
| GEODE CAPITAL MANAGEMENT, LLC | New | 0 | 809.6K | +809.6K |
| Qube Research & Technologies Ltd | Reduced | 930.9K | 239.3K | -691.6K |
| AMERICAN CENTURY COMPANIES INC | Increased | 3.2M | 3.9M | +689.1K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | 708.0K | 69.0K | -639.0K |
| CITADEL ADVISORS LLC | Increased | 1.1M | 1.7M | +603.8K |
| Walleye Capital LLC | New | 0 | 541.3K | +541.3K |
| Capital World Investors | Reduced | 5.2M | 4.6M | -526.1K |
| BANK OF AMERICA CORP /DE/ | Increased | 180.2K | 603.9K | +423.7K |
| PANAGORA ASSET MANAGEMENT INC | New | 0 | 408.9K | +408.9K |
| Lighthouse Investment Partners, LLC | Increased | 85.4K | 488.2K | +402.7K |
| Militia Capital Management LLC | Reduced | 450.0K | 80.0K | -370.0K |
| NORTHERN TRUST CORP | Increased | 16.4K | 369.6K | +353.2K |
| Woodline Partners LP | Reduced | 367.2K | 57.6K | -309.6K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 2.1M | 2.4M | +304.8K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.