MICHELLE H SHEPSTON
CIK 1683699 · General Counsel · 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.
Loading insider history…
Disclosed Exposure
$486.8K
Companies
2
Total Filings
33
Lifetime Open-Market Net
-$254.2K
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 4
33 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 |
|---|---|---|---|---|---|
| 2023-03-06 | BOOM | Tax (F) | −1,038 | -$27.3K | EDGAR |
| 2023-02-27 | BOOM | Mixed | −317 | -$11.2K | EDGAR |
| 2022-03-08 | BOOM | Mixed | +14,243 | -$36.2K | EDGAR |
| 2022-03-04 | BOOM | Grant (A) | +15,578 | $0 | EDGAR |
| 2022-03-03 | BOOM | Mixed | +23 | -$8.6K | EDGAR |
| 2022-02-24 | BOOM | Tax (F) | −315 | -$10.7K | EDGAR |
| 2021-03-01 | BOOM | Mixed | +1,026 | -$327.7K | EDGAR |
| 2021-02-25 | BOOM | Grant (A) | +1,918 | $0 | EDGAR |
| 2020-11-17 | BOOM | Sell (S) | −3,000 | -$120.5K | EDGAR |
| 2020-08-12 | BOOM | Sell (S) | −3,000 | -$107.0K | 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.