Jonathan Bornstein
CIK 1942459 · President of Amprius Lab · last filed 2025-03-12
"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.
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Disclosed Exposure
$10.54M
Companies
1
Total Filings
18
Lifetime Open-Market Net
-$4.84M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| 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 · Page 2 of 2
18 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2024-02-07 | AMPX.WS | Mixed | — | -$656.3K | EDGAR |
| 2024-01-04 | AMPX.WS | Mixed | — | -$658.8K | EDGAR |
| 2023-12-07 | AMPX.WS | Mixed | — | -$600.6K | EDGAR |
| 2023-11-21 | AMPX.WS | Mixed | — | -$104.7K | EDGAR |
| 2023-11-09 | AMPX.WS | Mixed | — | -$360.6K | EDGAR |
| 2023-10-12 | AMPX.WS | Mixed | — | -$624.9K | EDGAR |
| 2023-09-21 | AMPX.WS | Mixed | — | -$647.1K | EDGAR |
| 2022-09-16 | — | Grant (A) | — | $0 |
Showing 11–18 of 18
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Page 2 of 2
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.