Accelerant Holdings
ARX- Exchange
- NYSE
- Industry
- Insurance Agents, Brokers & Service
- SEC CIK
- 0001997350
In the last 90 days, Accelerant Holdings insiders filed 0 open-market purchases and 12 sales; 116 institutions reported holding it in 13F filings for Q2 2026, worth $761.1M in total; Tiger Global Management is the only superinvestor holding it.
Holders of 5% or more of ARX
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Accelerant Holdings, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| ACP Accelerant Holdings, L.P. | 13G | 44.20%90.9M shares | New | Nov 14, 20251 filing | Nov 14, 2025 | SEC |
| Radke Jeffrey L | 13G | 29.90%36.8M shares | New | Nov 14, 20251 filing | Nov 14, 2025 | SEC |
| Lee-Smith Christopher | 13G | 17.40%20.4M shares | New | Nov 14, 20251 filing | Nov 14, 2025 | SEC |
| ONeill Francis James | 13G | 7.00%8.08M shares | New | Nov 14, 20251 filing | Nov 14, 2025 | SEC |
| Capital World Investors | 13G | 5.10%5.75M shares | New | Nov 13, 20251 filing | Nov 13, 2025 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
5 Schedule 13D and 13G filings on Accelerant Holdings, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Nov 14, 20257:10 PM ET | ACP Accelerant Holdings, L.P.and 2 others | 13G | 44.20%90.9M shares | New | Sep 30, 2025 | SEC |
| Nov 14, 20254:56 PM ET | Radke Jeffrey L | 13G | 29.90%36.8M shares | New | Sep 30, 2025 | SEC |
| Nov 14, 20254:53 PM ET | ONeill Francis James | 13G | 7.00%8.08M shares | New | Sep 30, 2025 | SEC |
| Nov 14, 20254:50 PM ET | Lee-Smith Christopher | 13G | 17.40%20.4M shares | New | Sep 30, 2025 | SEC |
| Nov 13, 20257:06 PM ET | Capital World Investors | 13G | 5.10%5.75M shares | New | Sep 30, 2025 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Accelerant Holdings shares.
No Form 144 notices for Accelerant Holdings are on file.