Gary M. Halverson
CIK 1504164 · Sr Vice President · last filed 2026-01-05
"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
$4.48M
Companies
4
Total Filings
36
Lifetime Open-Market Net
-$5.10M
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 |
|---|---|---|---|---|---|---|---|
| PTEN | Director | 196,612 | $12.79 | $2.51M | $0 | 4 | 2026-01-05 |
| NEXTIER OILFIELD SOLUTIONS INC. (NEX) Delisted | Director | 0 | $10.61 | $0 | $0 | 5 | 2023-09-01 |
| NEXTIER OILFIELD SOLUTIONS INC. (FRAC) Delisted | Director | 56,612 | — | — | $0 | 2 | 2019-05-15 |
| CAM | Sr Vice President | 79,607 | $24.68 | $1.96M | -$5.10M | 25 | 2015-02-20 |
Recent Filings · Page 3 of 4
36 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 |
|---|---|---|---|---|---|
| 2013-01-08 | CAM | Tax (F) | −2,721 | -$153.6K | EDGAR |
| 2012-12-12 | CAM | Mixed | — | -$246.2K | EDGAR |
| 2012-11-08 | CAM | Tax (F) | −264 | -$13.9K | EDGAR |
| 2011-02-25 | CAM | Grant (A) | +5,454 | $0 | EDGAR |
| 2011-02-25 | CAM | Grant (A) | +7,275 | $0 | EDGAR |
| 2011-02-15 | CAM | Grant (A) | — | $0 | EDGAR |
| 2011-02-10 | CAM | Mixed | — | -$421.1K | EDGAR |
| 2011-01-31 | CAM | Grant (A) | — | $0 | EDGAR |
| 2011-01-19 | CAM | Grant (A) | — | $0 | EDGAR |
| 2011-01-10 | CAM | Tax (F) | −1,180 | -$59.9K | 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.