Insider · CIK 0002008628
Matthew David Sternberg
Files at ARX (Accelerant Holdings). First filing Nov 19, 2025, latest Jul 27, 2026.
In brief
Matthew David Sternberg files SEC Form 4 as COO at ARX (Accelerant Holdings). Since Nov 19, 2025, Matthew David Sternberg has reported 1 open-market buy worth $75k and 1 open-market sell worth $257k, the latest filed on Jul 27, 2026.
A track record needs three past buys with six months of prices behind them; Matthew David Sternberg has 1, so none is measured yet.
The newest scored trade: sold $257k of ARX on Jul 27, 2026, filed Jul 27, 2026, scored 28 (weak), under a 10b5-1 plan. In the last 12 months: 1 buy worth $75k and 1 sell worth $257k.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
ARX: Accelerant Holdings
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 |
|---|---|---|---|---|---|
| 28Weak | Accelerant Holdings | $257k 17,568 shares | -3% | +56% from low-51% from high | |
| 43Moderate | Accelerant Holdings | $75k 5,700 shares | +4% | - |
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 |
|---|---|---|---|---|---|
| Jul 27, 2026 | ARX ACCELERANT HOLDINGS | 17,568 0.02% of outstanding | $250k | Jul 27, 2026 | none |
Transactions
Every row this insider has filed, 6 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Jul 23, 2026 | ARX Accelerant Holdings | FTax withholding Class A Common Shares10b5-1 | -3,910 | $13.77 | $54k | 614,050 | Jul 27, 2026 |
| Jul 27, 2026 | ARX Accelerant Holdings | SOpen-market sale Class A Common Shares10b5-1 | -17,568 | $14.64 | $257k | 596,482 | Jul 27, 2026 |
| May 13, 2026 | ARX Accelerant Holdings | AGrant or award Class A Common Shares | +279,329 | $0.00 | $0 | 617,960 | May 15, 2026 |
| Mar 18, 2026 | ARX Accelerant Holdings | AGrant or award Class A Common Shares | +180,667 | $0.00 | $0 | 338,631 | Mar 20, 2026 |
| Nov 17, 2025 | ARX Accelerant Holdings | POpen-market purchase Class A Common Shares | +5,700 | $13.10 | $75k | 157,964 | Nov 19, 2025 |
| Jul 25, 2025 | ARX Accelerant Holdings | AGrant or award Class A Common Shares | +152,264 | $0.00 | $0 | 152,264 | Jul 29, 2025 |
Questions about Matthew David Sternberg
Answered from the filings on this page, as of the latest one.
Is Matthew David Sternberg buying or selling?
In the last 12 months Matthew David Sternberg reported 1 open-market buy worth $75k and 1 open-market sell worth $257k on SEC Form 4; the latest was sold $257k of ARX on Jul 27, 2026. Grants, option exercises and tax withholding are not counted.
How did Matthew David Sternberg's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Matthew David Sternberg has 1.
Where does Matthew David Sternberg file Form 4?
Matthew David Sternberg has filed Form 4 at ARX (Accelerant Holdings) as COO, Risk Exchange. 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.