Rong Zhou
CIK 1645326 · SENIOR EVP, PRODUCTION CENTER · last filed 2026-03-17
"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
$5.45M
Companies
1
Total Filings
63
Lifetime Open-Market Net
-$6.27M
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 |
|---|---|---|---|---|---|---|---|
| AMPH | SENIOR EVP, PRODUCTION CENTER | 271,222 | $20.09 | $5.45M | -$6.27M | 63 | 2026-03-17 |
Recent Filings · Page 4 of 7
63 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2021-08-04 | AMPH | Mixed | −3,123 | -$130.9K | EDGAR |
| 2021-07-27 | AMPH | Mixed | — | -$62.3K | EDGAR |
| 2021-07-22 | AMPH | Mixed | — | -$52.3K | EDGAR |
| 2021-06-10 | AMPH | Mixed | −4,732 | -$134.4K | EDGAR |
| 2021-05-17 | AMPH | Mixed | −6,299 | -$189.0K | EDGAR |
| 2021-03-18 | AMPH | Mixed | +18,681 | -$60.9K | EDGAR |
| 2021-03-17 | AMPH | Tax (F) | −1,652 | -$31.6K | EDGAR |
| 2020-06-05 | AMPH | Mixed | −2,969 | -$207.7K | EDGAR |
| 2020-03-18 | AMPH | Mixed | +24,388 | -$27.7K | EDGAR |
| 2020-03-17 | AMPH | Tax (F) | −1,653 | -$23.5K | EDGAR |
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.