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.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
OOMA Chief Financial Officer 187,198 $17.55 $3.29M -$1.43M 54 2026-06-11
ARAY SVP & CFO 228,009 $0.34 $77.8K -$145.2K 10 2020-12-02
NETL 663 $26.98 $17.9K -$542.6K 12 2008-01-02

Recent Filings · Page 7 of 8

76 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2018-12-06 ARAY Grant (A) $0 EDGAR
2018-10-03 ARAY Sell (S) −8,762 -$39.3K EDGAR
2018-08-31 ARAY Grant (A) +25,000 $0 EDGAR
2018-01-30 ARAY Grant (A) +100,000 $0 EDGAR
2008-01-02 NETL Mixed -$20.1K EDGAR
2007-11-30 NETL Mixed -$17.1K EDGAR
2007-11-05 NETL Mixed -$68.6K EDGAR
2007-09-05 NETL Mixed +1,430 $27.6K EDGAR
2007-08-02 NETL Mixed -$49.3K EDGAR
2007-06-07 NETL Grant (A) $0 EDGAR
Showing 6170 of 76
Page 7 of 8
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.