MICHAEL K KOBAYASHI
CIK 1311099 · PRES., CHIEF CAPABILITY OFC'R · last filed 2026-06-02
"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
$17.62M
Companies
2
Total Filings
27
Lifetime Open-Market Net
-$8.79M
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 3
27 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 |
|---|---|---|---|---|---|
| 2023-04-10 | ROST | Sell (S) | −12,221 | -$1.30M | EDGAR |
| 2023-03-21 | ROST | Tax (F) | −9,134 | -$932.2K | EDGAR |
| 2022-09-20 | ROST | Tax (F) | −2,883 | -$260.2K | EDGAR |
| 2022-03-22 | ROST | Mixed | +5,403 | -$908.7K | EDGAR |
| 2022-02-03 | ROST | Grant (A) | +32,475 | $0 | EDGAR |
| 2021-07-06 | ROST | Sell (S) | −63 | -$7.9K | EDGAR |
| 2021-04-02 | ROST | Sell (S) | −53 | -$6.4K | EDGAR |
| 2021-03-25 | ROST | Sell (S) | −1,459 | -$173.9K | EDGAR |
| 2021-03-23 | ROST | Mixed | +8,207 | -$174.0K | EDGAR |
| 2021-03-18 | ROST | Sell (S) | −10,160 | -$1.25M | EDGAR |
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.