Form4insider filings, from the source

Company · CIK 0001997350 · SIC 6411 — Insurance Agents, Brokers & Service · NYSE

Accelerant Holdings · ARX

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $20.9M · 17net −$20.9M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesJun 21Jul 1Jul 11Jul 22Aug 1Aug 11Aug 22

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 21, 2026 SForm 4 →Aug 25, 7:01 pm EDTKaren Sue MeriwetherDirector542$19.62$10,63120,868−2.53%
Aug 13, 2026 SForm 4 →Aug 14, 4:34 pm EDTNancy HasleyDirector20,489$19.56$400,8391,341,834−1.50%10b5-1
Aug 10, 2026 SForm 4 →Aug 12, 4:31 pm EDTFrancis James ONeillCo-Founder, Chief U/W Officer152,835$12.27$1,874,8846,369,290−2.34%10b5-1
Aug 10, 2026 SForm 4 →Aug 11, 5:25 pm EDTJeffrey L RadkeCo-Founder, CEO, Director, 10% Owner80,000$12.09$967,09627,591,939−0.29%10b5-1
Aug 3, 2026 SForm 4 →Aug 4, 8:18 pm EDTJeffrey L RadkeCo-Founder, CEO, Director, 10% Owner80,000$12.06$964,52827,671,939−0.29%10b5-1
Jul 27, 2026 SForm 4 →Jul 29, 6:25 pm EDTFrancis James ONeillCo-Founder, Chief U/W Officer215,114$14.60$3,139,6726,522,125−3.19%10b5-1
Jul 27, 2026 SForm 4 →Jul 28, 9:25 pm EDTJeffrey L RadkeCo-Founder, CEO, Director, 10% Owner95,223$14.60$1,390,53327,751,939−0.34%10b5-1
Jul 27, 2026 SForm 4 →Jul 27, 9:38 pm EDTMatthew David SternbergCOO, Risk Exchange17,568$14.64$257,206596,482−2.86%10b5-1
Jul 23, 2026 FForm 4 →Jul 27, 9:38 pm EDTMatthew David SternbergCOO, Risk Exchange3,910$13.77$53,841614,050—10b5-1
Jul 17, 2026 SForm 4 →Jul 20, 8:52 pm EDTJeffrey L RadkeCo-Founder, CEO, Director, 10% Owner94,777$13.63$1,291,82327,847,162−0.34%10b5-1
Jul 14, 2026 SForm 4 →Jul 16, 8:27 pm EDTFrancis James ONeillCo-Founder, Chief U/W Officer165,886$12.78$2,119,6906,737,239−2.40%10b5-1
Jul 13, 2026 SForm 4 →Jul 14, 6:34 pm EDTJeffrey L RadkeCo-Founder, CEO, Director, 10% Owner80,000$13.18$1,054,09627,941,939−0.29%10b5-1
Jul 6, 2026 SForm 4 →Jul 7, 8:12 pm EDTJeffrey L RadkeCo-Founder, CEO, Director, 10% Owner80,000$13.33$1,066,22428,021,939−0.28%10b5-1
Jun 29, 2026 SForm 4 →Jun 30, 5:01 pm EDTJeffrey L RadkeCo-Founder, CEO, Director, 10% Owner80,000$12.87$1,029,88028,101,939−0.28%10b5-1
Jun 25, 2026 SForm 4 →Jun 29, 9:12 pm EDTFrancis James ONeillCo-Founder, Chief U/W Officer147,000$13.12$1,928,6776,903,125−2.09%10b5-1
Jun 23, 2026 SForm 4 →Jun 25, 9:49 pm EDTNancy HasleyDirector35,000$13.11$458,9481,362,323−2.50%10b5-1
Jun 23, 2026 SForm 4 →Jun 25, 9:24 pm EDTJeffrey L RadkeCo-Founder, CEO, Director, 10% Owner80,000$13.11$1,048,60828,181,939−0.28%10b5-1
Jun 22, 2026 SForm 4 →Jun 24, 8:08 pm EDTFrancis James ONeillCo-Founder, Chief U/W Officer147,000$13.16$1,934,0117,050,125−2.04%10b5-1

Reported at this company — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.