As of the latest Form 4 filed Jul 7, 2026.
What Accelerant Holdings insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 21 most recent filings for ARX.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-07-07 | 2026-07-06 | RADKE JEFFREY L Co-Founder, CEO | SSale | −80.0K | $13.33 | $1.07M | Yes (planned) | Form 4 ↗ |
| 2026-06-30 | 2026-06-29 | RADKE JEFFREY L Co-Founder, CEO | SSale | −80.0K | $12.87 | $1.03M | Yes (planned) | Form 4 ↗ |
| 2026-06-29 | 2026-06-26 | ONeill Francis James Co-Founder, Chief U/W Officer | SSale | −73.5K | $13.18 | $969K | Yes (planned) | Form 4 ↗ |
| 2026-06-29 | 2026-06-25 | ONeill Francis James, Co-Founder, Chief U/W Officer | SSale | −73.5K | $13.06 | $960K | Yes (planned) | Form 4 ↗ |
| 2026-06-25 | 2026-06-23 | Hasley Nancy Director | SSale | −35.0K | $13.11 | $459K | Yes (planned) | Form 4 ↗ |
| 2026-06-25 | 2026-06-23 | RADKE JEFFREY L Co-Founder, CEO | SSale | −80.0K | $13.11 | $1.05M | Yes (planned) | Form 4 ↗ |
| 2026-06-24 | 2026-06-23 | ONeill Francis James Co-Founder, Chief U/W Officer | SSale | −76.5K | $13.11 | $1.00M | Yes (planned) | Form 4 ↗ |
| 2026-06-24 | 2026-06-22 | ONeill Francis James, Co-Founder, Chief U/W Officer | SSale | −70.5K | $13.21 | $932K | Yes (planned) | Form 4 ↗ |
| 2026-05-15 | 2026-05-13 | Sternberg Matthew David COO, Risk Exchange | AAward | +279K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-15 | 2026-05-13 | Wainwright Simon Director | AAward | +23.3K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-15 | 2026-05-13 | Talach David George Paul Director | AAward | +23.3K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-15 | 2026-05-13 | Meriwether Karen Sue Director | AAward | +11.7K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-15 | 2026-05-13 | Hasley Nancy Director | AAward | +11.7K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-15 | 2026-05-13 | Little Paul Christopher Director | AAward | +11.7K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-24 | 2026-03-23 | Green Jay Michael Chief Financial Officer | SSale | −50.0K | $12.77 | $638K | Yes (planned) | Form 4 ↗ |
| 2026-03-20 | 2026-03-18 | RADKE JEFFREY L Co-Founder, CEO | AAward | +300K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-20 | 2026-03-18 | ONeill Francis James Co-Founder, Chief U/W Officer | AAward | +129K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-20 | 2026-03-18 | Lee-Smith Christopher Co-Founder, Head of Distrib. | AAward | +129K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-20 | 2026-03-18 | Sternberg Matthew David COO, Risk Exchange | AAward | +181K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-18 | 2026-03-17 | Green Jay Michael Chief Financial Officer | FTax | −28.6K | $11.63 | $333K | No | Form 4 ↗ |
| 2026-02-04 | 2026-02-02 | Green Jay Michael Chief Financial Officer | FTax | −201K | $12.76 | $2.56M | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also ARX’s full analysis or the market-wide insider trading feed. The tabs above jump to ARX’s other SEC data.
Source: SEC Form 4 filings for ARX, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
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