Mika Nishimura
CIK 1848327 · last filed 2026-06-08
"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
$834.8K
Companies
2
Total Filings
17
Lifetime Open-Market Net
-$97.3K
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 2 of 2
17 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2023-12-04 | ARAY | Grant (A) | +56,603 | $0 | EDGAR |
| 2023-06-13 | SIBN | Grant (A) | +4,866 | $0 | EDGAR |
| 2022-12-07 | ARAY | Grant (A) | +59,055 | $0 | EDGAR |
| 2022-06-21 | SIBN | Grant (A) | +8,324 | $0 | EDGAR |
| 2021-12-02 | ARAY | Grant (A) | +31,185 | $150.0K | EDGAR |
| 2021-09-02 | ARAY | Grant (A) | +9,213 | $37.5K | EDGAR |
| 2021-03-08 | SIBN | Grant (A) | +8,660 | $0 | EDGAR |
Showing 11–17 of 17
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Page 2 of 2
Form 4 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.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.