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About Accelerant Holdings (ARX)
Accelerant Holdings files with the SEC under CIK 0001997350 and is classified as insurance agents, brokers and service. We track it alongside the rest of the Financials sector.
ARX Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 15 | 922,434 | $12.42M |
| Tax withholding / forfeiture | 1 | 3,910 |
Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.
ARX insider transactions (Form 4)
6249 Form 4 filings on record, the earliest from Jul 23, 2025, newest first. Filing history page 2 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Christopher Lee-Smith - Officer | Open-market purchase | Class A Common Shares | 14,700 | $13.42 | $197K | |
| Samuel Gaynor | Open-market purchase | Class A Common Shares | 7,500 | $13.44 footnote F1 | $101K | |
| ||||||
| Francis James Oneill - Officer | Open-market purchase | Class A Common Shares | 38,000 | $13.34 footnote F1 | $507K | |
| ||||||
| Matthew David Sternberg - Officer | Open-market purchase | Class A Common Shares | 5,700 | $13.10 footnote F1 | $75K | |
| ||||||
| Jeffrey L. Radke - Officer | Open-market purchase | Class A Common Shares | 74,110 | $13.48 footnote F1 | $999K | |
| ||||||
| Nancy Hasley - Officer | Other | Class A Common Shares | 1,368,640 | - | - | |
| Nancy Hasley - Officer | Other | Class A Common Shares | 512,531 | - | - | |
| Nancy Hasley - Officer | Other | Class A Common Shares | 17,025 | - | - | |
| Nancy Hasley - Officer | Open-market purchase | Class A Common Shares | 500 | $21.00 | $11K | |
| Nancy Hasley - Officer | Other | LP Interests of Accelerant Holdings LP | 34,242,081 | $0.00 | - | |
| Nancy Hasley - Officer | Other | LP Interests of Accelerant Holdings LP | 50,000 | $0.00 | - | |
| Nancy Hasley - Officer | Other | Convertible Preference Shares | 17,025 | $0.00 | - | |
| Nancy Hasley - Officer | Derivative | Redeemable Preference Shares | 22,190 | $31.55 | $700K | |
| Matthew David Sternberg - Officer | Grant or award | Class A Common Shares | 152,264 | $0.00 | - | |
| Keoni Andrew Schwartz | Other | Class A Common Shares | 8,111,253 | - | - | |
| Keoni Andrew Schwartz | Open-market sale | Class A Common Shares | 8,111,253 | $21.00 | $170.34M | |
| Keoni Andrew Schwartz | Other | Class A Common Shares | 2,670,456 | - | - | |
| Keoni Andrew Schwartz | Open-market sale | Class A Common Shares | 2,670,456 | $21.00 | $56.08M | |
| Keoni Andrew Schwartz | Other | Class A Common Shares | 488,131 | - | - | |
| Keoni Andrew Schwartz | Open-market sale | Class A Common Shares | 488,131 | $21.00 | $10.25M | |
| Keoni Andrew Schwartz | Other | Class A Common Shares | 326,312 | - | - | |
| Keoni Andrew Schwartz | Open-market sale | Class A Common Shares | 326,312 | $21.00 | $6.85M | |
| Keoni Andrew Schwartz | Other | LP Interests of Accelerant Holdings LP | 8,491,134,079 | $0.00 | - | |
| Keoni Andrew Schwartz | Other | Class B Common Shares | 90,196,595 | - | - | |
| Keoni Andrew Schwartz | Other | Class B Common Shares | 8,111,253 | - | - | |
| Keoni Andrew Schwartz | Other | LP Interests of Accelerant Holdings LP | 100 | $0.00 | - | |
| Keoni Andrew Schwartz | Other | Class B Common Shares | 2,670,456 | - | - | |
| Keoni Andrew Schwartz | Other | Class B Common Shares | 2,670,456 | - | - | |
| Keoni Andrew Schwartz | Other | Convertible Preference Shares | 5,427,970 | $0.00 | - | |
| Keoni Andrew Schwartz | Other | Class B Common Shares | 5,427,970 | - | - | |
| Keoni Andrew Schwartz | Other | Class B Common Shares | 488,131 | - | - | |
| Keoni Andrew Schwartz | Other | Convertible Preference Shares | 3,628,575 | $0.00 | - | |
| Keoni Andrew Schwartz | Other | Class B Common Shares | 3,628,575 | - | - | |
| Keoni Andrew Schwartz | Other | Class B Common Shares | 326,312 | - | - | |
| Keoni Andrew Schwartz | Other | Redeemable Preference Shares | 909,791 | $31.55 | $28.70M | |
| Francis James Oneill - Officer | Other | Class A Common Shares | 7,136,705 | - | - | |
| Francis James Oneill - Officer | Other | Class A Common Shares | 7,975 | - | - | |
| Francis James Oneill - Officer | Other | LP Interests of Accelerant Holdings LP | 163,616,981 | $0.00 | - | |
| Francis James Oneill - Officer | Other | Convertible Preference Shares | 7,975 | $0.00 | - | |
| Francis James Oneill - Officer | Derivative | Redeemable Preference Shares | 22,190 | $31.55 | $700K | |
| Karen Sue Meriwether | Grant or award | Class A Common Shares | 9,210 | $0.00 | - | |
| Paul Christopher Little | Grant or award | Class A Common Shares | 9,210 | $0.00 | - | |
| Christopher Lee-Smith - Officer | Other | Class A Common Shares | 17,509,884 | - | - | |
| Christopher Lee-Smith - Officer | Other | LP Interests of Accelerant Holdings LP | 107,086,944 | $0.00 | - | |
| Christopher Lee-Smith - Officer | Derivative | Redeemable Preference Shares | 62,132 | $31.55 | $1.96M | |
| Wendy Liisa Harrington | Grant or award | Class A Common Shares | 9,210 | $0.00 | - | |
| Wendy Liisa Harrington | Other | Class A Common Shares | 7,808 | - | - | |
| Wendy Liisa Harrington | Other | Class A Common Shares | 6,297 | - | - | |
| Wendy Liisa Harrington | Other | LP Interests of Accelerant Holdings LP | 10,882,806 | $0.00 | - | |
| Wendy Liisa Harrington | Other | Convertible Preference Shares | 6,297 | $0.00 | - | |
| Jay Michael Green - Officer | Grant or award | Class A Common Shares | 1,454,851 | - | - | |
| Jay Michael Green - Officer | Other | Stock Option (Right to Buy) | 1,087,948 | - | - | |
| Jeffrey L. Radke - Officer | Other | Class A Common Shares | 33,464 | - | - | |
| Jeffrey L. Radke - Officer | Other | Class A Common Shares | 27,945,395 | - | - | |
| Jeffrey L. Radke - Officer | Other | Class A Common Shares | 249,828 | - | - | |
| Jeffrey L. Radke - Officer | Other | LP Interests of Accelerant Holdings LP | 3,265 | $0.00 | - | |
| Jeffrey L. Radke - Officer | Other | LP Interests of Accelerant Holdings LP | 204,207,109 | $0.00 | - | |
| Jeffrey L. Radke - Officer | Other | LP Interests of Accelerant Holdings LP | 24,372 | $0.00 | - | |
| Francis James Oneill - Officer | Grant or award | Stock Option (Right to Buy) | 882,611 | $0.00 | - | |
| Wendy Liisa Harrington | Grant or award | Stock Option (Right to Buy) | 209,515 | $0.00 | - | |
| Christopher Lee-Smith - Officer | Grant or award | Stock Option (Right to Buy) | 2,746,261 | $0.00 | - | |
| Jeffrey L. Radke - Officer | Grant or award | Stock Option (Right to Buy) | 8,279,552 | $0.00 | - | |
Item 8.01, 9.01
Item 1.01, 9.01
Item 2.02, 8.01, 9.01
Item 7.01, 9.01
Recent ARX Form 144 notices of proposed sale
3An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| KAREN MERIWETHER | Director | 542 | $11K | View on EDGAR | |
| NANCY HASLEY | Director | 20,489 | $279K |
ARX insider trading FAQ
What is the latest insider trade for ARX?
Accelerant Holdings (ARX) had 10 insider filings in the last 90 days, with the most recent on 2026-08-25. The full record for ARX runs to 49 Form 4 filings, the earliest from 2025-07-23. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying ARX stock?
No insider purchases of ARX were filed in the last 90 days. 6 purchases are on record for this company.
How many insiders are selling ARX stock?
15 insider sales of ARX were filed in the last 90 days, totaling $12.42M.
Where can I see ARX SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects ARX Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Financials companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Karen Sue Meriwether view on EDGAR
- - Nancy Hasley view on EDGAR
- - Francis James Oneill view on EDGAR
- - Jeffrey L. Radke view on EDGAR
- - Jeffrey L. Radke view on EDGAR
- - Francis James Oneill view on EDGAR
- - Jeffrey L. Radke view on EDGAR
- - Matthew David Sternberg view on EDGAR
- - Jeffrey L. Radke view on EDGAR
Related companies with recent insider activity
Learn more
- Insider selling: signal or noise?
- Why most insider sales are routine, and the few patterns worth a second look.
- Form 144 vs Form 4
- A Form 144 announces a planned sale; the Form 4 reports it after it happens.
- Insider activity in Financials
- Where ARX's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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