Form4insider filings, from the source

Company · CIK 0002067129 · SIC 6411 — Insurance Agents, Brokers & Service · NYSE

Neptune Insurance Holdings Inc. · NP

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

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $1.6M · 1net −$1.6M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesAug 28Sep 2Sep 7Sep 12Sep 18Sep 23Sep 28

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 14, 2026 JForm 4 →Sep 16, 4:22 pm EDTJames SteinerChief Financial Officer, Director6,698,100——3,749,050—
Sep 14, 2026 SForm 4 →Sep 15, 5:19 pm EDTJonathan Winant CarlonDirector50,000$31.15$1,557,595603,500−7.65%
Sep 9, 2026 JForm 4/A →Sep 16, 4:21 pm EDTJames SteinerChief Financial Officer, Director800,000——400,000—
Sep 9, 2026 JForm 4 →Sep 10, 2:12 pm EDTJames SteinerChief Financial Officer, Director800,000——400,000— amended

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

No reported derivative activity in this period.