Accelerant Holdings
ARX
19.75
+0.02
+0.10%
Accelerant Holdings
US · ARX
#2245 by market cap
Listed 2025
19.75
+0.02
+0.10%
Live - 5344 symbols - heartbeat 435s ago
· 2026-10-08 06:31
Pre-market
19.70
-0.25%
After-hours
19.75
0.00%
- Market cap
- 4.29B
- P/E (TTM)i
- -3.13
- P/Bi
- 5.98
- EPSi
- -6.42
- Div yieldi
- 0.00%
- 52W posi
- 99%
Reader sentiment
Are you bullish or bearish on ARX?
Anonymous reader poll. Unscientific, not investment advice.
✦ Quant Ownership Signal how this is computed
Accumulating
- The number of reporting institutions increased by 1 in the most recent period (2026/Q3).
- Total institutional ownership rose 2.5 percentage points.
Institutional ownership
- Held by institutions
- 77.39% +2.55pp
- Institutions
- 147 +1
- As of
- 2026/Q3 vs. prior period
Ownership vs. money flow
DivergingInstitutions added shares last reporting period, and the stock has seen net outflows in main-fund flow over the last 20 trading sessions - the two are pointing in different directions.
Institutional ownership changes are reported quarterly with a lag; fund-flow data is daily. Treat this as a directional cross-check, not a precise timing signal.
Holder types
Private Company38.87%
Individual/Insider25.59%
Mutual Fund19.12%
Hedge Fund9.41%
VC/PE Fund9.20%
Public Company0.72%
Top holders as of 2026-03-16
ACP Insurance Management, LLC
38.07% · 82.67M sh
Jeffrey Radke
12.83% · 27.88M sh
Christopher Lee-Smith
8.13% · 17.66M sh
Eldridge Industries LLC
5.40% · 11.73M sh
Altamont Capital Management, LP
3.79% · 8.24M sh
Francis O’Neill
2.95% · 6.41M sh
Glazer Capital, LLC
2.75% · 5.97M sh
FMR
2.59% · 5.63M sh
Capital Research
2.13% · 4.63M sh
Keenan Capital, LLC
1.84% · 3.99M sh
Bar length is relative to the largest holder shown here, not to 100% of the company.
Insiders
50 filings tracked · 21 buys · 27 sells
| Name | Role | Stake |
|---|---|---|
| Jeffrey Radke | Chief Executive Officer | 12.83% |
| Christopher Lee-Smith | Co-Founder, Head of Distribution & Director | 8.13% |
| Francis O’Neill | Co-Founder & Chief Underwriting Officer | 2.95% |
| Nancy Hasley | Group General Counsel & Director | 0.85% |
| Jay Green | Chief Financial Officer | 0.54% |
| Matthew Sternberg | Chief Operating Officer & Risk Exchange | 0.27% |
| Wendy Harrington | Independent Director | 0.01% |
| Samuel Gaynor | Director | 0.00% |
| Karen Meriwether | Independent Director | 0.00% |
| Linda Huber | Principal Financial & Accounting Officer | -- |
Insider transactions most recent Form 4 filings
| Date | Name | Role | Type | Shares | Price |
|---|---|---|---|---|---|
| 2026-08-20 | Karen Meriwether | Independent Director | Open Market Disposition | -542 | $19.62 |
| 2026-08-12 | Nancy Hasley | Group General Counsel & Director | Automatic Disposition | -20,489 | $19.56 |
| 2026-08-10 | Francis O’Neill | Co-Founder & Chief Underwriting Officer | Automatic Disposition | -152,835 | $12.07–12.41 |
| 2026-08-09 | Jeffrey Radke | Chief Executive Officer | Open Market Disposition | -80,000 | $12.09 |
| 2026-08-02 | Jeffrey Radke | Chief Executive Officer | Automatic Disposition | -80,000 | $12.06 |
| 2026-07-27 | Francis O’Neill | Co-Founder & Chief Underwriting Officer | Automatic Disposition | -215,114 | $14.56–14.63 |
| 2026-07-26 | Jeffrey Radke | Chief Executive Officer | Automatic Disposition | -95,223 | $14.45–14.63 |
| 2026-07-26 | Matthew Sternberg | Chief Operating Officer & Risk Exchange | Automatic Disposition | -17,568 | $14.64 |
| 2026-07-23 | Jeffrey Radke | Chief Executive Officer | Intent to Sell (Form 144) | -30,000 | $14.16 |
| 2026-07-22 | Matthew Sternberg | Chief Operating Officer & Risk Exchange | Sale to Issuer | -3,910 | $13.77 |
| 2026-07-19 | Jeffrey Radke | Chief Executive Officer | Open Market Disposition | -94,777 | $13.51–14.30 |
| 2026-07-19 | Jeffrey Radke | Chief Executive Officer | Intent to Sell (Form 144) | -80,000 | $13.41 |
| 2026-07-16 | Jeffrey Radke | Chief Executive Officer | Intent to Sell (Form 144) | -14,777 | $14.13 |
| 2026-07-14 | Francis O’Neill | Co-Founder & Chief Underwriting Officer | Automatic Disposition | -165,886 | $12.71–12.84 |
| 2026-07-12 | Jeffrey Radke | Chief Executive Officer | Automatic Disposition | -80,000 | $13.18 |
| 2026-07-05 | Jeffrey Radke | Chief Executive Officer | Automatic Disposition | -80,000 | $13.33 |
| 2026-06-28 | Jeffrey Radke | Chief Executive Officer | Automatic Disposition | -80,000 | $12.87 |
| 2026-06-25 | Francis O’Neill | Co-Founder & Chief Underwriting Officer | Automatic Disposition | -147,000 | $13.06–13.18 |
| 2026-06-22 | Jeffrey Radke | Chief Executive Officer | Automatic Disposition | -80,000 | $13.11 |
| 2026-06-22 | Nancy Hasley | Group General Counsel & Director | Automatic Disposition | -35,000 | $13.11 |
Form 4 filings, most recent per company. "Other Derivative Acquisition" rows are mostly RSU/option vesting, not open-market buying - the Type column says which.
Quote time 2026-10-08 06:31:01 · For reference only, not investment advice and not tailored to your situation.