ARXAccelerant Holdings
- Market cap
- $4.29B
- as of 2026-10-23
- Latest close
- $19.77
- as of 2026-10-23
- Sector
- Financial Services
- as of 2026-10-24
- Industry
- Insurance Brokers
- as of 2026-10-24
Cluster
No cluster in the last 90 days under the default rule (14d · ≥2 insiders · all roles).
Form 4 historysince 2025-07-25
| Insider | Traded | Filed | Type | Shares | Price | Value | Owned after | 10b5-1 plan | Filing |
|---|---|---|---|---|---|---|---|---|---|
| Meriwether Karen Sue | Aug 21 | Aug 25 | S | 542 | $19.62 | Sale −$10,634 | 20,868 | No | Form 4 |
| Hasley Nancy | Aug 13 | Aug 14 | S | 20,489 | $19.56 | Sale −$400,765 | 1,341,834 | Yes | Form 4 |
| ONeill Francis JamesCo-Founder, Chief U/W Officer | Aug 11 | Aug 12 | S | 89,219 | $12.41 | Sale −$1,107,208 | 6,369,290 | Yes | Form 4 |
| ONeill Francis JamesCo-Founder, Chief U/W Officer | Aug 10 | Aug 12 | S | 63,616 | $12.07 | Sale −$767,845 | 6,458,509 | Yes | Form 4 |
| Radke Jeffrey LCo-Founder, CEO | Aug 10 | Aug 11 | S | 80,000 | $12.09 | Sale −$967,200 | 27,591,939 | Yes | Form 4 |
| Radke Jeffrey LCo-Founder, CEO | Aug 3 | Aug 4 | S | 80,000 | $12.06 | Sale −$964,800 | 27,671,939 | Yes | Form 4 |
| ONeill Francis JamesCo-Founder, Chief U/W Officer | Jul 28 | Jul 29 | S | 104,647 | $14.56 | Sale −$1,523,660 | 6,522,125 | Yes | Form 4 |
| ONeill Francis JamesCo-Founder, Chief U/W Officer | Jul 27 | Jul 29 | S | 110,467 | $14.63 | Sale −$1,616,132 | 6,626,772 | Yes | Form 4 |
| Radke Jeffrey LCo-Founder, CEO | Jul 27 | Jul 28 | S | 80,000 | $14.63 | Sale −$1,170,400 | 27,767,162 | Yes | Form 4 |
| Radke Jeffrey LCo-Founder, CEO | Jul 27 | Jul 28 | S | 15,223 | $14.45 | Sale −$219,972 | 27,751,939 | Yes | Form 4 |
| Sternberg Matthew DavidCOO, Risk Exchange | Jul 27 | Jul 27 | S | 17,568 | $14.64 | Sale −$257,196 | 596,482 | Yes | Form 4 |
| Sternberg Matthew DavidCOO, Risk Exchange | Jul 23 | Jul 27 | F | 3,910 | $13.77 | $53,841 | 614,050 | Yes | Form 4 |
| Radke Jeffrey LCo-Founder, CEO | Jul 20 | Jul 20 | S | 80,000 | $13.51 | Sale −$1,080,800 | 27,847,162 | Yes | Form 4 |
| Radke Jeffrey LCo-Founder, CEO | Jul 17 | Jul 20 | S | 14,777 | $14.30 | Sale −$211,311 | 27,927,162 | Yes | Form 4 |
| ONeill Francis JamesCo-Founder, Chief U/W Officer | Jul 15 | Jul 16 | S | 82,767 | $12.71 | Sale −$1,051,969 | 6,737,239 | Yes | Form 4 |
| ONeill Francis JamesCo-Founder, Chief U/W Officer | Jul 14 | Jul 16 | S | 83,119 | $12.84 | Sale −$1,067,248 | 6,820,006 | Yes | Form 4 |
| Radke Jeffrey LCo-Founder, CEO | Jul 13 | Jul 14 | S | 80,000 | $13.18 | Sale −$1,054,400 | 27,941,939 | Yes | Form 4 |
| Radke Jeffrey LCo-Founder, CEO | Jul 6 | Jul 7 | S | 80,000 | $13.33 | Sale −$1,066,400 | 28,021,939 | Yes | Form 4 |
| Radke Jeffrey LCo-Founder, CEO | Jun 29 | Jun 30 | S | 80,000 | $12.87 | Sale −$1,029,600 | 28,101,939 | Yes | Form 4 |
| ONeill Francis JamesCo-Founder, Chief U/W Officer | Jun 26 | Jun 29 | S | 73,500 | $13.18 | Sale −$968,730 | 6,903,125 | Yes | Form 4 |
| ONeill Francis JamesCo-Founder, Chief U/W Officer | Jun 25 | Jun 29 | S | 73,500 | $13.06 | Sale −$959,910 | 6,976,625 | Yes | Form 4 |
| Radke Jeffrey LCo-Founder, CEO | Jun 23 | Jun 25 | S | 80,000 | $13.11 | Sale −$1,048,800 | 28,181,939 | Yes | Form 4 |
| Hasley Nancy | Jun 23 | Jun 25 | S | 35,000 | $13.11 | Sale −$458,850 | 1,362,323 | Yes | Form 4 |
| ONeill Francis JamesCo-Founder, Chief U/W Officer | Jun 23 | Jun 24 | S | 76,464 | $13.11 | Sale −$1,002,443 | 7,050,125 | Yes | Form 4 |
| ONeill Francis JamesCo-Founder, Chief U/W Officer | Jun 22 | Jun 24 | S | 70,536 | $13.21 | Sale −$931,781 | 7,126,589 | Yes | Form 4 |
| Little Paul Christopher | May 13 | May 15 | A | 11,658 | $0.00 | $0 | 20,868 | No | Form 4 |
| Hasley Nancy | May 13 | May 15 | A | 11,658 | $0.00 | $0 | 1,397,323 | No | Form 4 |
| Meriwether Karen Sue | May 13 | May 15 | A | 11,658 | $0.00 | $0 | 21,410 | No | Form 4 |
| Talach David George Paul | May 13 | May 15 | A | 23,316 | $0.00 | $0 | 23,316 | No | Form 4 |
| Wainwright Simon | May 13 | May 15 | A | 23,316 | $0.00 | $0 | 23,316 | No | Form 4 |
| Sternberg Matthew DavidCOO, Risk Exchange | May 13 | May 15 | A | 279,329 | $0.00 | $0 | 617,960 | No | Form 4 |
| Green Jay MichaelChief Financial Officer | Mar 23 | Mar 24 | S | 50,000 | $12.77 | Sale −$638,500 | 1,175,589 | Yes | Form 4 |
| Sternberg Matthew DavidCOO, Risk Exchange | Mar 18 | Mar 20 | A | 180,667 | $0.00 | $0 | 338,631 | No | Form 4 |
| Lee-Smith ChristopherCo-Founder, Head of Distrib. | Mar 18 | Mar 20 | A | 128,644 | $0.00 | $0 | 17,784,023 | No | Form 4 |
| ONeill Francis JamesCo-Founder, Chief U/W Officer | Mar 18 | Mar 20 | A | 128,644 | $0.00 | $0 | 7,363,769 | No | Form 4 |
| Radke Jeffrey LCo-Founder, CEO | Mar 18 | Mar 20 | A | 300,171 | $0.00 | $0 | 333,652 | No | Form 4 |
| Green Jay MichaelChief Financial Officer | Mar 17 | Mar 18 | F | 28,625 | $11.63 | $332,909 | 1,225,589 | No | Form 4 |
| Green Jay MichaelChief Financial Officer | Feb 2 | Feb 4 | F | 200,637 | $12.76 | $2,560,128 | 1,254,214 | No | Form 4 |
| Lee-Smith ChristopherCo-Founder, Head of Distrib. | Nov 19, 2025 | Dec 17, 2025 | P | 14,700 | $13.42 | Purchase +$197,274 | 17,655,379 | No | Form 4 |
| Meriwether Karen Sue | Dec 8, 2025 | Dec 9, 2025 | P | 542 | $14.67 | Purchase +$7,951 | 9,752 | No | Form 4 |
| Gaynor Samuel | Nov 19, 2025 | Nov 20, 2025 | P | 7,500 | $13.44 | Purchase +$100,800 | 7,500 | No | Form 4 |
| ONeill Francis JamesCo-Founder, Chief U/W Officer | Nov 18, 2025 | Nov 20, 2025 | P | 38,000 | $13.34 | Purchase +$506,920 | 7,235,125 | No | Form 4 |
| Sternberg Matthew DavidCOO, Risk Exchange | Nov 17, 2025 | Nov 19, 2025 | P | 5,700 | $13.10 | Purchase +$74,670 | 157,964 | No | Form 4 |
| Radke Jeffrey LCo-Founder, CEO | Nov 14, 2025 | Nov 18, 2025 | P | 74,110 | $13.48 | Purchase +$999,003 | 28,261,939 | No | Form 4 |
| Green Jay MichaelChief Financial Officer | Jul 25, 2025 | Jul 29, 2025 | A | 1,454,851 | not reported | not reported | 1,454,851 | No | Form 4 |
| Green Jay MichaelChief Financial Officer | Jul 25, 2025 | Jul 29, 2025 | J · derivative | 1,087,948 | $19.31 | $21,008,276 | not reported | No | Form 4 |
| Harrington Wendy Liisa | Jul 25, 2025 | Jul 29, 2025 | A | 9,210 | $0.00 | $0 | 9,210 | No | Form 4 |
| Harrington Wendy Liisa | Jul 25, 2025 | Jul 29, 2025 | C | 7,808 | not reported | not reported | 17,018 | No | Form 4 |
| Harrington Wendy Liisa | Jul 25, 2025 | Jul 29, 2025 | C | 6,297 | not reported | not reported | 23,315 | No | Form 4 |
| Harrington Wendy Liisa | Jul 25, 2025 | Jul 29, 2025 | C · derivative | 10,882,806 | $0.00 | $0 | not reported | No | Form 4 |
| Harrington Wendy Liisa | Jul 25, 2025 | Jul 29, 2025 | C · derivative | 6,297 | $0.00 | $0 | not reported | No | Form 4 |
| Hasley NancyGeneral Counsel | Jul 25, 2025 | Jul 29, 2025 | C | 1,368,640 | not reported | not reported | 1,368,640 | No | Form 4 |
| Hasley NancyGeneral Counsel | Jul 25, 2025 | Jul 29, 2025 | C | 512,531 | not reported | not reported | 512,531 | No | Form 4 |
| Hasley NancyGeneral Counsel | Jul 25, 2025 | Jul 29, 2025 | C | 17,025 | not reported | not reported | 1,385,665 | No | Form 4 |
| Hasley NancyGeneral Counsel | Jul 25, 2025 | Jul 29, 2025 | P | 500 | $21.00 | Purchase +$10,500 | 500 | No | Form 4 |
| Hasley NancyGeneral Counsel | Jul 25, 2025 | Jul 29, 2025 | C · derivative | 34,242,081 | $0.00 | $0 | not reported | No | Form 4 |
| Hasley NancyGeneral Counsel | Jul 25, 2025 | Jul 29, 2025 | C · derivative | 50,000 | $0.00 | $0 | not reported | No | Form 4 |
| Hasley NancyGeneral Counsel | Jul 25, 2025 | Jul 29, 2025 | C · derivative | 17,025 | $0.00 | $0 | not reported | No | Form 4 |
| Hasley NancyGeneral Counsel | Jul 25, 2025 | Jul 29, 2025 | D · derivative | 22,190 | $31.55 | $700,095 | not reported | No | Form 4 |
| Lee-Smith ChristopherCo-Founder, Head of Distrib. | Jul 25, 2025 | Jul 29, 2025 | C | 17,509,884 | not reported | not reported | 17,509,884 | No | Form 4 |
| Lee-Smith ChristopherCo-Founder, Head of Distrib. | Jul 25, 2025 | Jul 29, 2025 | C · derivative | 107,086,944 | $0.00 | $0 | not reported | No | Form 4 |
| Lee-Smith ChristopherCo-Founder, Head of Distrib. | Jul 25, 2025 | Jul 29, 2025 | D · derivative | 62,132 | $31.55 | $1,960,265 | not reported | No | Form 4 |
| Little Paul Christopher | Jul 25, 2025 | Jul 29, 2025 | A | 9,210 | $0.00 | $0 | 9,210 | No | Form 4 |
| Meriwether Karen Sue | Jul 25, 2025 | Jul 29, 2025 | A | 9,210 | $0.00 | $0 | 9,210 | No | Form 4 |
| ONeill Francis JamesCo-Founder, Chief U/W Officer | Jul 25, 2025 | Jul 29, 2025 | C | 7,136,705 | not reported | not reported | 7,136,705 | No | Form 4 |
| ONeill Francis JamesCo-Founder, Chief U/W Officer | Jul 25, 2025 | Jul 29, 2025 | C | 7,975 | not reported | not reported | 7,144,680 | No | Form 4 |
| ONeill Francis JamesCo-Founder, Chief U/W Officer | Jul 25, 2025 | Jul 29, 2025 | C · derivative | 163,616,981 | $0.00 | $0 | not reported | No | Form 4 |
| ONeill Francis JamesCo-Founder, Chief U/W Officer | Jul 25, 2025 | Jul 29, 2025 | C · derivative | 7,975 | $0.00 | $0 | not reported | No | Form 4 |
| ONeill Francis JamesCo-Founder, Chief U/W Officer | Jul 25, 2025 | Jul 29, 2025 | D · derivative | 22,190 | $31.55 | $700,095 | not reported | No | Form 4 |
| Radke Jeffrey LCo-Founder, CEO | Jul 25, 2025 | Jul 29, 2025 | C | 33,464 | not reported | not reported | 33,464 | No | Form 4 |
| Radke Jeffrey LCo-Founder, CEO | Jul 25, 2025 | Jul 29, 2025 | C | 27,945,395 | not reported | not reported | 27,945,395 | No | Form 4 |
| Radke Jeffrey LCo-Founder, CEO | Jul 25, 2025 | Jul 29, 2025 | C | 249,828 | not reported | not reported | 249,828 | No | Form 4 |
| Radke Jeffrey LCo-Founder, CEO | Jul 25, 2025 | Jul 29, 2025 | C · derivative | 3,265 | $0.00 | $0 | not reported | No | Form 4 |
| Radke Jeffrey LCo-Founder, CEO | Jul 25, 2025 | Jul 29, 2025 | C · derivative | 204,207,109 | $0.00 | $0 | not reported | No | Form 4 |
| Radke Jeffrey LCo-Founder, CEO | Jul 25, 2025 | Jul 29, 2025 | C · derivative | 24,372 | $0.00 | $0 | not reported | No | Form 4 |
| ACP Accelerant Holdings, L.P. | Jul 25, 2025 | Jul 29, 2025 | C | 8,111,253 | not reported | not reported | 8,111,253 | No | Form 4 |
| ACP Accelerant Holdings, L.P. | Jul 25, 2025 | Jul 29, 2025 | S | 8,111,253 | $21.00 | Sale −$170,336,313 | not reported | No | Form 4 |
| ACP Accelerant Holdings, L.P. | Jul 25, 2025 | Jul 29, 2025 | C | 2,670,456 | not reported | not reported | 2,670,456 | No | Form 4 |
| ACP Accelerant Holdings, L.P. | Jul 25, 2025 | Jul 29, 2025 | S | 2,670,456 | $21.00 | Sale −$56,079,576 | not reported | No | Form 4 |
| ACP Accelerant Holdings, L.P. | Jul 25, 2025 | Jul 29, 2025 | C | 488,131 | not reported | not reported | 488,131 | No | Form 4 |
| ACP Accelerant Holdings, L.P. | Jul 25, 2025 | Jul 29, 2025 | S | 488,131 | $21.00 | Sale −$10,250,751 | not reported | No | Form 4 |
| ACP Accelerant Holdings, L.P. | Jul 25, 2025 | Jul 29, 2025 | C | 326,312 | not reported | not reported | 326,312 | No | Form 4 |
| ACP Accelerant Holdings, L.P. | Jul 25, 2025 | Jul 29, 2025 | S | 326,312 | $21.00 | Sale −$6,852,552 | not reported | No | Form 4 |
| ACP Accelerant Holdings, L.P. | Jul 25, 2025 | Jul 29, 2025 | C · derivative | 8,491,134,079 | $0.00 | $0 | not reported | No | Form 4 |
| ACP Accelerant Holdings, L.P. | Jul 25, 2025 | Jul 29, 2025 | C · derivative | 90,196,595 | not reported | not reported | 90,196,595 | No | Form 4 |
| ACP Accelerant Holdings, L.P. | Jul 25, 2025 | Jul 29, 2025 | C · derivative | 8,111,253 | not reported | not reported | 82,085,342 | No | Form 4 |
| ACP Accelerant Holdings, L.P. | Jul 25, 2025 | Jul 29, 2025 | C · derivative | 100 | $0.00 | $0 | not reported | No | Form 4 |
| ACP Accelerant Holdings, L.P. | Jul 25, 2025 | Jul 29, 2025 | C · derivative | 2,670,456 | not reported | not reported | 2,670,456 | No | Form 4 |
| ACP Accelerant Holdings, L.P. | Jul 25, 2025 | Jul 29, 2025 | C · derivative | 2,670,456 | not reported | not reported | not reported | No | Form 4 |
| ACP Accelerant Holdings, L.P. | Jul 25, 2025 | Jul 29, 2025 | C · derivative | 5,427,970 | $0.00 | $0 | not reported | No | Form 4 |
| ACP Accelerant Holdings, L.P. | Jul 25, 2025 | Jul 29, 2025 | C · derivative | 5,427,970 | not reported | not reported | 5,427,970 | No | Form 4 |
| ACP Accelerant Holdings, L.P. | Jul 25, 2025 | Jul 29, 2025 | C · derivative | 488,131 | not reported | not reported | 4,939,839 | No | Form 4 |
| ACP Accelerant Holdings, L.P. | Jul 25, 2025 | Jul 29, 2025 | C · derivative | 3,628,575 | $0.00 | $0 | not reported | No | Form 4 |
| ACP Accelerant Holdings, L.P. | Jul 25, 2025 | Jul 29, 2025 | C · derivative | 3,628,575 | not reported | not reported | 3,628,575 | No | Form 4 |
| ACP Accelerant Holdings, L.P. | Jul 25, 2025 | Jul 29, 2025 | C · derivative | 326,312 | not reported | not reported | 3,302,263 | No | Form 4 |
| ACP Accelerant Holdings, L.P. | Jul 25, 2025 | Jul 29, 2025 | J · derivative | 909,791 | $31.55 | $28,703,906 | not reported | No | Form 4 |
| Sternberg Matthew DavidCOO, Risk Exchange | Jul 25, 2025 | Jul 29, 2025 | A | 152,264 | $0.00 | $0 | 152,264 | No | Form 4 |
| Harrington Wendy Liisa | Jul 23, 2025 | Jul 25, 2025 | A · derivative | 209,515 | $21.00 | $4,399,815 | 209,515 | No | Form 4 |
| Lee-Smith ChristopherCo-Founder, Head of Distrib. | Jul 23, 2025 | Jul 25, 2025 | A · derivative | 2,746,261 | $21.00 | $57,671,481 | 2,746,261 | No | Form 4 |
| ONeill Francis JamesCo-Founder, Chief U/W Officer | Jul 23, 2025 | Jul 25, 2025 | A · derivative | 882,611 | $21.00 | $18,534,831 | 882,611 | No | Form 4 |
| Radke Jeffrey LCo-Founder, CEO | Jul 23, 2025 | Jul 25, 2025 | A · derivative | 8,279,552 | $21.00 | $173,870,592 | 8,279,552 | No | Form 4 |