Shigeyuki Hamamatsu
CIK 1379827 · Chief Financial Officer · last filed 2026-06-11
"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
$3.38M
Companies
3
Total Filings
76
Lifetime Open-Market Net
-$2.11M
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.
Recent Filings · Page 3 of 8
76 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-03-04 | OOMA | Tax (F) | −816 | -$11.7K | EDGAR |
| 2024-12-17 | OOMA | Tax (F) | −4,392 | -$64.3K | EDGAR |
| 2024-12-12 | OOMA | Sell (S) | −35,313 | -$547.7K | EDGAR |
| 2024-12-09 | OOMA | Tax (F) | −2,169 | -$32.3K | EDGAR |
| 2024-12-03 | OOMA | Tax (F) | −851 | -$12.6K | EDGAR |
| 2024-09-17 | OOMA | Tax (F) | −4,212 | -$49.6K | EDGAR |
| 2024-09-10 | OOMA | Tax (F) | −2,203 | -$22.8K | EDGAR |
| 2024-09-04 | OOMA | Tax (F) | −756 | -$7.9K | EDGAR |
| 2024-06-18 | OOMA | Tax (F) | −3,902 | -$33.6K | EDGAR |
| 2024-06-11 | OOMA | Tax (F) | −1,838 | -$15.9K | 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.