ARX
Accelerant Holdings · Finance & Insurance · Market cap $4.4B
Insiders sold $20.9M net in the last 90 days ·5 sellers, 0 buyers· 22 of 23 sales under Rule 10b5-1 plans· latest Form 4 filed Aug 25, 2026
Insider Buying
$1.9M
reported purchases (SEC code P)
Insider Selling
$21.6M
reported sales (SEC code S)
Unique Insiders
8
in the rolling window
Latest filing
Aug 25, 2026
Meriwether Karen Sue
Accelerant Holdings (ARX) has 36 SEC Form 4 filings (44 transaction rows) in the rolling window, disclosed by 8 distinct insiders. Most recent filing: Aug 25, 2026.
Inside the rolling window, 8 insiders at Accelerant Holdings reported 6 open-market purchases totaling $1.9M and 24 open-market sales totaling $21.6M. The most active filer is Co-Founder, Chief U/W Officer ONeill Francis James with 11 filings. Insiders have net sold $21.6M over the trailing 6 months. The most recent open-market filing is a sale of 542 shares by Director Meriwether Karen Sue, dated Aug 21, 2026, worth $11K.
- Industry:Insurance - Property & Casualty
- CEO:Jeffrey Lee Radke
- Employees:862
- HQ:Grand Cayman, GT, KY
- IPO:2025-07-24
| Source | |||||||
|---|---|---|---|---|---|---|---|
Meriwether Karen SueFirst in 9 months | Director | Sale | 542 | $11K | Aug 25 | +0.4% | SEC ↗ |
| Director | Sale | 20,489 | $401K | Aug 14 | +0.9% | SEC ↗ | |
| Co-Founder, Chief U/W Officer | Sale | 63,616 | $768K | Aug 12 | +45.1% | SEC ↗ | |
| Co-Founder, Chief U/W Officer | Sale | 89,219 | $1.1M | Aug 12 | +45.1% | SEC ↗ | |
| Co-Founder, CEO | Sale | 80,000 | $967K | Aug 11 | +57.7% | SEC ↗ | |
| Co-Founder, CEO | Sale | 80,000 | $965K | Aug 5 | +61.1% | SEC ↗ | |
| Co-Founder, Chief U/W Officer | Sale | 110,467 | $1.6M | Jul 29 | +59.3% | SEC ↗ | |
| Co-Founder, Chief U/W Officer | Sale | 104,647 | $1.5M | Jul 29 | +59.3% | SEC ↗ | |
| Co-Founder, CEO | Sale | 95,223 | $1.4M | Jul 29 | +59.3% | SEC ↗ | |
Sternberg Matthew DavidFirst in 8 months | COO, Risk Exchange | Sale | 17,568 | $257K | Jul 28 | — | SEC ↗ |
| Co-Founder, CEO | Sale | 14,777 | $211K | Jul 21 | — | SEC ↗ | |
| Co-Founder, CEO | Sale | 80,000 | $1.1M | Jul 21 | — | SEC ↗ | |
| Co-Founder, Chief U/W Officer | Sale | 83,119 | $1.1M | Jul 17 | — | SEC ↗ | |
| Co-Founder, Chief U/W Officer | Sale | 82,767 | $1.1M | Jul 17 | — | SEC ↗ | |
| Co-Founder, CEO | Sale | 80,000 | $1.1M | Jul 14 | — | SEC ↗ | |
| Co-Founder, CEO | Sale | 80,000 | $1.1M | Jul 8 | — | SEC ↗ | |
| Co-Founder, Chief U/W Officer | Sale | 73,500 | $960K | Jun 30 | — | SEC ↗ | |
| Co-Founder, Chief U/W Officer | Sale | 73,500 | $969K | Jun 30 | — | SEC ↗ | |
| Co-Founder, CEO | Sale | 80,000 | $1.0M | Jun 30 | — | SEC ↗ | |
Hasley NancyFirst filing | Director | Sale | 35,000 | $459K | Jun 26 | — | SEC ↗ |
RADKE JEFFREY LFirst in 7 months | Co-Founder, CEO | Sale | 80,000 | $1.0M | Jun 26 | — | SEC ↗ |
ONeill Francis JamesFirst in 7 months | Co-Founder, Chief U/W Officer | Sale | 70,536 | $932K | Jun 25 | — | SEC ↗ |
ONeill Francis JamesFirst in 7 months | Co-Founder, Chief U/W Officer | Sale | 76,464 | $1.0M | Jun 25 | — | SEC ↗ |
Green Jay MichaelFirst filing | Chief Financial Officer | Sale | 50,000 | $638K | Mar 24 | — | SEC ↗ |
Lee-Smith ChristopherFirst filing | Co-Founder, Head of Distrib. | Purchase | 14,700 | $197K | Dec 17 | — | SEC ↗ |
Earnings: last 7 quarters
Frequently asked questions
How many SEC Form 4 insider filings does ARX have?
Accelerant Holdings (ARX) has 36 SEC Form 4 filings (44 transaction rows) in the rolling 365-day window, disclosed by 8 distinct insiders. Most recent filing: Aug 25, 2026.
When was the most recent SEC Form 4 filing for ARX?
The most recent Form 4 filing for ARX on Tracefour is dated Aug 25, 2026.
Who is the most active insider at ARX?
The most active SEC Form 4 filer at ARX in the rolling window is Co-Founder, Chief U/W Officer ONeill Francis James, with 11 filings.
What is the net insider flow at ARX over the last 6 months?
Over the trailing 180 days, insiders at ARX have net sold $21.6M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at ARX in the current window?
Inside the rolling window, insiders at ARX bought $1.9M and sold $21.6M based on SEC Form 4 filings.
Can I get alerts for ARX insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at Accelerant Holdings (ARX). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
Accelerant Holdings is in the Finance & Insurance sector.