Kang Sun
CIK 1476220 · Chief Executive Officer · last filed 2026-05-28
"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
$9.49M
Companies
2
Total Filings
23
Lifetime Open-Market Net
-$57.85M
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 | Director | 1,336,904 | $7.10 | $9.49M | -$57.85M | 19 | 2026-05-28 |
| DAYSTAR TECHNOLOGIES INC (DSTI) Delisted | Director | 86,112 | — | — | $0 | 3 | 2012-03-29 |
Recent Filings · Page 3 of 3
23 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2012-03-29 | DAYSTAR TECHNOLOGIES INC (DSTI) Delisted | Grant (A) | +50,000 | $0 | EDGAR |
| 2011-01-25 | DAYSTAR TECHNOLOGIES INC (DSTI) Delisted | Grant (A) | +25,000 | $0 | EDGAR |
| 2010-01-27 | DAYSTAR TECHNOLOGIES INC (DSTI) Delisted | Grant (A) | +100,000 | $0 | EDGAR |
Showing 21–23 of 23
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Page 3 of 3
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.