Jonathan Bornstein
CIK 1942459 · President of Amprius Lab · last filed 2025-03-12
Jonathan Bornstein is a President of Amprius Lab who has filed 18 SEC Form 4 insider transactions across 1 company since 2023. The most recent filing shows the insider exercised options covering $3.4K of AMPX.WS on Mar 12, 2025. Across all open-market trades the lifetime net is −$4.8M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $10.5M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$10.54M
1
18
-$4.84M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| AMPX.WS | President of Amprius Lab | 1,485,025 | $7.10 | $10.54M | -$4.84M | 17 | 2025-03-12 |
Recent Filings
18 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-03-12 | AMPX.WS | Exer (M) | +3,471 | $3.4K | EDGAR |
| 2025-02-24 | AMPX.WS | Sell (S) | −13,527 | -$42.4K | EDGAR |
| 2024-11-22 | AMPX.WS | Sell (S) | −166,706 | -$322.0K | EDGAR |
| 2024-10-25 | AMPX.WS | Grant (A) | — | $0 | EDGAR |
| 2024-08-22 | AMPX.WS | Sell (S) | −18,644 | -$19.4K | EDGAR |
| 2024-05-24 | AMPX.WS | Sell (S) | −19,902 | -$26.7K | EDGAR |
| 2024-04-15 | AMPX.WS | Exer (M) | +1,007,867 | $50.4K | EDGAR |
| 2024-04-03 | AMPX.WS | Mixed | — | -$293.3K | EDGAR |
| 2024-03-19 | AMPX.WS | Grant (A) | +558,930 | $0 | EDGAR |
| 2024-03-07 | AMPX.WS | Mixed | — | -$424.5K | EDGAR |