Accelerant Holdings (ARX) insider trading.
In Q3 2026, insiders at Accelerant Holdings reported 18 non-derivative transactions on 12 Forms 3, 4 and 5: 0 open-market purchases and 17 sales worth $14.5M.
- Transactions
- 18
- Purchases (P)
- 0
- Sales (S)
- 17
- Net shares, P minus S
- -1,082,434
- Insiders
- 5
- Last filed
- 2026-08-25
Insiders
| Insider | Relationship | Transactions | Buys | Sales |
|---|---|---|---|---|
| Radke Jeffrey L | Director, Officer, TenPercentOwner · Co-Founder, CEO | 8 | 0 | 8 |
| ONeill Francis James | Officer · Co-Founder, Chief U/W Officer | 6 | 0 | 6 |
| Sternberg Matthew David | Officer · COO, Risk Exchange | 2 | 0 | 1 |
| Meriwether Karen Sue | Director | 1 | 0 | 1 |
| Hasley Nancy | Director | 1 | 0 | 1 |
Transactions
| Date | Insider | Code | Shares | Price | Owned after | Filing |
|---|---|---|---|---|---|---|
| 2026-08-21 | Meriwether Karen Sue | S (D) | 542 | $19.62 | 20,868 | Form 4 |
| 2026-08-13 | Hasley Nancy | S (D) | 20,489 | $19.56 | 1,341,834 | Form 4 |
| 2026-08-11 | ONeill Francis James | S (D) | 89,219 | $12.41 | 6,369,290 | Form 4 |
| 2026-08-10 | ONeill Francis James | S (D) | 63,616 | $12.07 | 6,458,509 | Form 4 |
| 2026-08-10 | Radke Jeffrey L | S (D) | 80,000 | $12.09 | 27,591,939 | Form 4 |
| 2026-08-03 | Radke Jeffrey L | S (D) | 80,000 | $12.06 | 27,671,939 | Form 4 |
| 2026-07-28 | ONeill Francis James | S (D) | 104,647 | $14.56 | 6,522,125 | Form 4 |
| 2026-07-27 | ONeill Francis James | S (D) | 110,467 | $14.63 | 6,626,772 | Form 4 |
| 2026-07-27 | Radke Jeffrey L | S (D) | 80,000 | $14.63 | 27,767,162 | Form 4 |
| 2026-07-27 | Radke Jeffrey L | S (D) | 15,223 | $14.45 | 27,751,939 | Form 4 |
| 2026-07-27 | Sternberg Matthew David | S (D) | 17,568 | $14.64 | 596,482 | Form 4 |
| 2026-07-23 | Sternberg Matthew David | F (D) | 3,910 | $13.77 | 614,050 | Form 4 |
| 2026-07-20 | Radke Jeffrey L | S (D) | 80,000 | $13.51 | 27,847,162 | Form 4 |
| 2026-07-17 | Radke Jeffrey L | S (D) | 14,777 | $14.3 | 27,927,162 | Form 4 |
| 2026-07-15 | ONeill Francis James | S (D) | 82,767 | $12.71 | 6,737,239 | Form 4 |
| 2026-07-14 | ONeill Francis James | S (D) | 83,119 | $12.84 | 6,820,006 | Form 4 |
| 2026-07-13 | Radke Jeffrey L | S (D) | 80,000 | $13.18 | 27,941,939 | Form 4 |
| 2026-07-06 | Radke Jeffrey L | S (D) | 80,000 | $13.33 | 28,021,939 | Form 4 |
Transaction codes in this quarter
Get ARX insider transactions through the API
curl "https://sec-api.dev/api/v1/insider-transactions?period=2026q3&cik=1997350&limit=100" \
-H "Authorization: Bearer $SEC_API_KEY"Insider trading API guide · ARX company page · Accelerant Holdings on SEC.gov
Questions
Are insiders buying or selling Accelerant Holdings (ARX)?
In Q3 2026, insiders at Accelerant Holdings reported 18 non-derivative transactions on 12 Forms 3, 4 and 5: 0 open-market purchases and 17 sales worth $14.5M. Grants, tax withholding and option exercises are counted as transactions but are not purchases or sales.
Where do these Accelerant Holdings insider trades come from?
From the SEC Insider Transactions Data Sets for Q3 2026, which republish the Forms 3, 4 and 5 filed on EDGAR. Each row links to its filing on SEC.gov.
Plain-text version for agents and LLMs: /insider-trading/arx.md
Independent. Not affiliated with, endorsed by, or sponsored by the U.S. Securities and Exchange Commission. Data is reproduced from public SEC filings and datasets. Not investment advice.