Insider · CIK 0002077387
Matthew Paul Duffy
Files at NP (Neptune Insurance Holdings Inc.). First filing Oct 5, 2026, latest Oct 9, 2026.
In brief
Matthew Paul Duffy files SEC Form 4 as president at NP (Neptune Insurance Holdings Inc.). Since Oct 5, 2026, Matthew Paul Duffy has reported 0 open-market buys worth $0 and 3 open-market sells worth $4.6M, the latest filed on Oct 9, 2026.
A track record needs three past buys with six months of prices behind them; Matthew Paul Duffy has 0, so none is measured yet.
The newest scored trade: sold $2.4M of NP on Oct 8, 2026, filed Oct 9, 2026, with a score that opens a week after filing, under a 10b5-1 plan. In the last 12 months: 0 buys worth $0 and 3 sells worth $4.6M.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
NP: Neptune Insurance Holdings Inc.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| Pro nowfree Oct 16, 2026 | Neptune Insurance Holdings Inc. | $2.4M 84,441 shares | -4% | +66% from low-19% from high | |
| Pro nowfree Oct 14, 2026 | Neptune Insurance Holdings Inc. | $1.1M 41,392 shares | -2% | +59% from low-23% from high | |
| 25Weak | Neptune Insurance Holdings Inc. | $1.1M 39,737 shares | -2% | +60% from low-22% from high |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Oct 2, 2026 | NP Neptune Insurance Holdings Inc. | 165,570 0.18% of outstanding | $4.5M | Oct 2, 2026 | none |
Transactions
Every row this insider has filed, 12 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Oct 8, 2026 | NP Neptune Insurance Holdings Inc. | SOpen-market sale Class A Common Stock10b5-1 | -53,639 | $27.88 | $1.5M | 1,910,600 | 5 d ago |
| Oct 8, 2026 | NP Neptune Insurance Holdings Inc. | SOpen-market sale Class A Common Stock10b5-1 | -30,802 | $28.47 | $877k | 1,879,798 | 5 d ago |
| Oct 6, 2026 | NP Neptune Insurance Holdings Inc. | SOpen-market sale Class A Common Stock10b5-1 | -41,392 | $27.15 | $1.1M | 1,964,239 | 7 d ago |
| Oct 2, 2026 | NP Neptune Insurance Holdings Inc. | SOpen-market sale Class A Common Stock10b5-1 | -38,537 | $27.65 | $1.1M | 2,006,831 | 9 d ago |
| Oct 2, 2026 | NP Neptune Insurance Holdings Inc. | SOpen-market sale Class A Common Stock10b5-1 | -1,200 | $28.48 | $34k | 2,005,631 | 9 d ago |
| Sep 30, 2026 | NP Neptune Insurance Holdings Inc. | FTax withholding Class A Common Stock | -98,381 | $27.35 | $2.7M | 1,853,472 | 12 d ago |
| Sep 30, 2026 | NP Neptune Insurance Holdings Inc. | AGrant or award Class A Common Stock | +191,896 | $0.00 | $0 | 2,045,368 | 12 d ago |
| Oct 2, 2025 | NP Neptune Insurance Holdings Inc. | JOther Common Stock | -1,160,000 | - | - | 0 | Oct 3, 2025 |
| Oct 2, 2025 | NP Neptune Insurance Holdings Inc. | JOther Class A Common Stock | +1,160,000 | - | - | 1,160,000 | Oct 3, 2025 |
| Oct 2, 2025 | NP Neptune Insurance Holdings Inc. | AGrant or award Class A Common Stock | +791,853 | $0.00 | $0 | 1,951,853 | Oct 3, 2025 |
| Oct 2, 2025 | NP Neptune Insurance Holdings Inc. | JOther Stock Option (right to buy)derivative | -95,500 | $0.00 | $0 | 0 | Oct 3, 2025 |
| Oct 2, 2025 | NP Neptune Insurance Holdings Inc. | JOther Stock Option (right to buy)derivative | +95,500 | $0.00 | $0 | 95,500 | Oct 3, 2025 |
Questions about Matthew Paul Duffy
Answered from the filings on this page, as of the latest one.
Is Matthew Paul Duffy buying or selling?
In the last 12 months Matthew Paul Duffy reported 0 open-market buys worth $0 and 3 open-market sells worth $4.6M on SEC Form 4; the latest was sold $2.4M of NP on Oct 8, 2026. Grants, option exercises and tax withholding are not counted.
How did Matthew Paul Duffy's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Matthew Paul Duffy has 0.
Where does Matthew Paul Duffy file Form 4?
Matthew Paul Duffy has filed Form 4 at NP (Neptune Insurance Holdings Inc.) as President & Chief Risk Officer. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.