Michael Stock
CIK 1705066 · Chief Financial Officer · last filed 2026-08-04
"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
$15.48M
Companies
1
Total Filings
90
Lifetime Open-Market Net
-$21.76M
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 |
|---|---|---|---|---|---|---|---|
| LBRT | Chief Financial Officer | 770,378 | $20.10 | $15.48M | -$21.76M | 63 | 2026-08-04 |
Recent Filings · Page 9 of 9
90 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 |
|---|---|---|---|---|---|
| 2020-01-23 | LBRT | Grant (A) | +66,436 | $0 | EDGAR |
| 2019-05-09 | LBRT | Sell (S) | −12,513 | -$212.7K | EDGAR |
| 2019-05-08 | LBRT | Sell (S) | −61,309 | -$1.04M | EDGAR |
| 2019-04-18 | LBRT | Sell (S) | −90,000 | -$1.53M | EDGAR |
| 2019-04-03 | LBRT | Tax (F) | −6,420 | -$99.1K | EDGAR |
| 2019-02-21 | LBRT | Sell (S) | −4,185 | -$71.1K | EDGAR |
| 2019-02-19 | LBRT | Sell (S) | −40,815 | -$695.0K | EDGAR |
| 2019-01-24 | LBRT | Grant (A) | +55,819 | $0 | EDGAR |
| 2018-04-26 | LBRT | Grant (A) | +66,450 | $0 | EDGAR |
| 2018-01-19 | LBRT | Mixed | +1,499,327 | -$474.4K | EDGAR |
Showing 81–90 of 90
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Page 9 of 9
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.