Martha Z. Carnes
CIK 1678397 · last filed 2026-05-18
"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
$1.40M
Companies
4
Total Filings
47
Lifetime Open-Market Net
$23.0K
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 |
|---|---|---|---|---|---|---|---|
| SXC | Director | — | $9.18 | — | $0 | 17 | 2026-05-18 |
| CLB | Director | 54,397 | $10.69 | $581.5K | $23.0K | 12 | 2026-04-07 |
| MTRX | Director | 71,183 | $11.53 | $820.7K | $0 | 9 | 2025-11-05 |
| SunCoke Energy Partners, L.P. (SXCP) Delisted | Director | 1,668 | — | — | $0 | 8 | 2019-06-20 |
Recent Filings · Page 2 of 5
47 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 |
|---|---|---|---|---|---|
| 2023-04-03 | CLB | Mixed | +5,485 | $0 | EDGAR |
| 2022-12-15 | SXC | Grant (A) | — | $0 | EDGAR |
| 2022-12-07 | MTRX | Grant (A) | +11,571 | $0 | EDGAR |
| 2022-09-23 | SXC | Grant (A) | — | $0 | EDGAR |
| 2022-06-30 | SXC | Grant (A) | — | $0 | EDGAR |
| 2022-04-04 | CLB | Mixed | +4,307 | $0 | EDGAR |
| 2022-03-17 | SXC | Mixed | — | $0 | EDGAR |
| 2021-12-16 | SXC | Mixed | — | $0 | EDGAR |
| 2021-11-03 | MTRX | Grant (A) | +9,117 | $0 | EDGAR |
| 2021-09-23 | SXC | Mixed | — | $0 | 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.