DAVID M DEMSHUR
CIK 1282547 · Chief Executive Officer · last filed 2020-02-12
"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
$4.88M
Companies
1
Total Filings
38
Lifetime Open-Market Net
-$86.27M
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 |
|---|---|---|---|---|---|---|---|
| CLB | Chief Executive Officer | 434,374 | $11.22 | $4.88M | -$86.27M | 38 | 2020-02-12 |
Recent Filings · Page 3 of 4
38 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 |
|---|---|---|---|---|---|
| 2010-07-30 | CLB | Sell (S) | −100,000 | -$7.61M | EDGAR |
| 2010-04-05 | CLB | Grant (A) | — | $0 | EDGAR |
| 2010-02-18 | CLB | Sell (S) | −150,000 | -$18.50M | EDGAR |
| 2009-11-02 | CLB | Sell (S) | −100,000 | -$10.75M | EDGAR |
| 2008-08-04 | CLB | Disc (I) | — | $0 | EDGAR |
| 2008-03-03 | CLB | Sell (S) | −14,045 | -$1.73M | EDGAR |
| 2008-03-03 | CLB | Sell (S) | −33,124 | -$4.13M | EDGAR |
| 2008-03-03 | CLB | Sell (S) | −26,098 | -$3.23M | EDGAR |
| 2008-03-03 | CLB | Sell (S) | −26,733 | -$3.26M | EDGAR |
| 2008-02-14 | CLB | Mixed | +25,404 | -$1.62M | 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.