Accelerant Holdings (ARX) ownership: Top institutional holder: SECURITY BENEFIT LIFE INSURANCE CO /KS/ ($78.37M). Insider activity: Net Seller (0 buys, 20 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| SECURITY BENEFIT LIFE INSURANCE CO /KS/ | 5866257.00 | $78.37M | 2026-03-31 |
| Capital World Investors | 5152741.00 | $68.84M | 2026-03-31 |
| Keenan Capital, LLC | 3992923.00 | $53.35M | 2026-03-31 |
| GILDER GAGNON HOWE & CO LLC | 3743364.00 | $50.01M | 2026-03-31 |
| BARINGS LLC | 3128867.00 | $46.06M | 2026-03-31 |
| ALLIANCEBERNSTEIN L.P. | 2800188.00 | $45.78M | 2026-03-31 |
| Balyasny Asset Management L.P. | 2733595.00 | $44.69M | 2025-12-31 |
| AMERICAN CENTURY COMPANIES INC | 3188505.00 | $42.60M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-05-13 | |
| Sell | null | 2026-05-13 | |
| Sell | null | 2026-05-13 | |
| Sell | null | 2026-05-13 | |
| Sell | null | 2026-05-13 | |
| Sell | null | 2026-05-13 | |
| Sell | null | 2026-05-13 | |
| Sell | null | 2026-05-13 |
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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.