Martha Z. Carnes
CIK 1678397 · View on SEC EDGAR ↗
Insider
First SEC filing: Dec. 12, 2019 · Latest: Nov. 5, 2025
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 39 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| April 1, 2026 | CLB | M | 8,069 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-21) |
| April 1, 2026 | CLB | A | 7,895 | — | — | 7,895 Direct | — | Acquired | (price as of 2026-08-21) |
| April 1, 2026 | CLB | M | 8,069 | — | — | 54,397 Direct | +17.42% | Acquired | (price as of 2026-08-21) |
| Nov. 4, 2025 | MTRX | A | 7,986 | — | — | 71,183 Direct | +12.64% | Acquired | (price as of 2026-08-21) |
| April 1, 2025 | CLB | M | 9,317 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-21) |
| April 1, 2025 | CLB | A | 8,069 | — | — | 8,069 Direct | — | Acquired | (price as of 2026-08-21) |
| April 1, 2025 | CLB | M | 9,317 | — | — | 46,328 Direct | +25.17% | Acquired | (price as of 2026-08-21) |
| Nov. 5, 2024 | MTRX | A | 8,290 | — | — | 63,197 Direct | +15.10% | Acquired | (price as of 2026-08-21) |
| April 1, 2024 | CLB | M | 6,419 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-21) |
| April 1, 2024 | CLB | A | 9,317 | — | — | 9,317 Direct | — | Acquired | (price as of 2026-08-21) |
| April 1, 2024 | CLB | M | 6,419 | — | — | 37,011 Direct | +20.98% | Acquired | (price as of 2026-08-21) |
| Nov. 14, 2023 | MTRX | A | 7,991 | — | — | 54,907 Direct | +17.03% | Acquired | (price as of 2026-08-21) |
| Dec. 5, 2022 | MTRX | A | 11,571 | — | — | 46,916 Direct | +32.74% | Acquired | (price as of 2026-08-21) |
| Sept. 21, 2022 | SXC | A | 4,425 | — | — | 8,669 Direct | +104.26% | Acquired | (price as of 2026-08-21) |
| June 29, 2022 | SXC | A | 4,244 | — | — | 4,244 Direct | — | Acquired | (price as of 2026-08-21) |
| March 16, 2022 | SXC | J | 407 | — | — | 56,235 Direct | +0.73% | Acquired | (price as of 2026-08-21) |
| March 16, 2022 | SXC | A | 3,413 | — | — | 55,828 Direct | +6.51% | Acquired | (price as of 2026-08-21) |
| Dec. 15, 2021 | SXC | J | 452 | — | — | 52,415 Direct | +0.87% | Acquired | (price as of 2026-08-21) |
| Dec. 15, 2021 | SXC | A | 4,549 | — | — | 51,964 Direct | +9.59% | Acquired | (price as of 2026-08-21) |
| Nov. 2, 2021 | MTRX | A | 9,117 | — | — | 35,345 Direct | +34.76% | Acquired | (price as of 2026-08-21) |
| Sept. 22, 2021 | SXC | J | 373 | — | — | 47,415 Direct | +0.79% | Acquired | (price as of 2026-08-21) |
| Sept. 22, 2021 | SXC | A | 4,337 | — | — | 47,042 Direct | +10.16% | Acquired | (price as of 2026-08-21) |
| June 23, 2021 | SXC | A | 3,950 | — | — | 42,390 Direct | +10.28% | Acquired | (price as of 2026-08-21) |
| June 23, 2021 | SXC | J | 315 | — | — | 42,705 Direct | +0.74% | Acquired | (price as of 2026-08-21) |
| March 24, 2021 | SXC | J | 314 | — | — | 38,440 Direct | +0.82% | Acquired | (price as of 2026-08-21) |
| March 24, 2021 | SXC | A | 4,108 | — | — | 38,125 Direct | +12.08% | Acquired | (price as of 2026-08-21) |
| Dec. 16, 2020 | SXC | J | 372 | — | — | 34,017 Direct | +1.11% | Acquired | (price as of 2026-08-21) |
| Dec. 16, 2020 | SXC | A | 5,583 | — | — | 33,646 Direct | +19.89% | Acquired | (price as of 2026-08-21) |
| Nov. 3, 2020 | MTRX | A | 8,211 | — | — | 26,228 Direct | +45.57% | Acquired | (price as of 2026-08-21) |
| Sept. 23, 2020 | SXC | J | 361 | — | — | 28,063 Direct | +1.30% | Acquired | (price as of 2026-08-21) |
| Sept. 23, 2020 | SXC | A | 8,191 | — | — | 27,702 Direct | +41.98% | Acquired | (price as of 2026-08-21) |
| June 24, 2020 | SXC | A | 9,099 | — | — | 19,324 Direct | +88.99% | Acquired | (price as of 2026-08-21) |
| June 24, 2020 | SXC | J | 187 | — | — | 19,511 Direct | +0.97% | Acquired | (price as of 2026-08-21) |
| March 25, 2020 | SXC | J | 16 | — | — | 10,225 Direct | +0.16% | Acquired | (price as of 2026-08-21) |
| March 25, 2020 | SXC | A | 8,713 | — | — | 10,209 Direct | +582.42% | Acquired | (price as of 2026-08-21) |
| Dec. 18, 2019 | SXC | A | 1,496 | — | — | 1,496 Direct | — | Acquired | (price as of 2026-08-21) |
| Nov. 5, 2019 | MTRX | A | 5,290 | — | — | 18,017 Direct | +41.57% | Acquired | (price as of 2026-08-21) |
| Oct. 30, 2018 | MTRX | A | 4,116 | — | — | 12,727 Direct | +47.80% | Acquired | (price as of 2026-08-21) |
| Oct. 31, 2017 | MTRX | A | 8,611 | — | — | 8,611 Direct | — | Acquired | (price as of 2026-08-21) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| April 1, 2026 | CLB | Restricted Shares | Common Stock (8,069) | $0.00 | — | 8,069 | Disposed |
| April 1, 2026 | CLB | Restricted Shares | Common Stock (7,895) | $0.00 | — | 7,895 | Acquired |
| April 1, 2025 | CLB | Restricted Shares | Common Stock (9,317) | $0.00 | — | 9,317 | Disposed |
| April 1, 2025 | CLB | Restricted Shares | Common Stock (8,069) | $0.00 | — | 8,069 | Acquired |
| April 1, 2024 | CLB | Restricted Shares | Common Stock (6,419) | $0.00 | — | 6,419 | Disposed |
| April 1, 2024 | CLB | Restricted Shares | Common Stock (9,317) | $0.00 | — | 9,317 | Acquired |
| Sept. 21, 2022 | SXC | RSUs (Director) [F1] | Common Stock (4,425) | — | — | 4,425 | Acquired |
| June 29, 2022 | SXC | RSUs (Director) [F1] | Common Stock (4,244) | — | — | 4,244 | Acquired |
| March 16, 2022 | SXC | Deferred Share Units | Common Stock (407) | — | — | 407 | Acquired |
| March 16, 2022 | SXC | Deferred Share Units | Common Stock (3,413) | — | — | 3,413 | Acquired |
| Dec. 15, 2021 | SXC | Deferred Share Units | Common Stock (452) | — | — | 452 | Acquired |
| Dec. 15, 2021 | SXC | Deferred Share Units | Common Stock (4,549) | — | — | 4,549 | Acquired |
| Sept. 22, 2021 | SXC | Deferred Share Units | Common Stock (373) | — | — | 373 | Acquired |
| Sept. 22, 2021 | SXC | Deferred Share Units | Common Stock (4,337) | — | — | 4,337 | Acquired |
| June 23, 2021 | SXC | Deferred Share Units | Common Stock (3,950) | — | — | 3,950 | Acquired |
| June 23, 2021 | SXC | Deferred Share Units | Common Stock (315) | — | — | 315 | Acquired |
| March 24, 2021 | SXC | Deferred Share Units | Common Stock (314) | — | — | 314 | Acquired |
| March 24, 2021 | SXC | Deferred Share Units | Common Stock (4,108) | — | — | 4,108 | Acquired |
| Dec. 16, 2020 | SXC | Deferred Share Units | Common Stock (372) | — | — | 372 | Acquired |
| Dec. 16, 2020 | SXC | Deferred Share Units | Common Stock (5,583) | — | — | 5,583 | Acquired |
| Sept. 23, 2020 | SXC | Deferred Share Units | Common Stock (361) | — | — | 361 | Acquired |
| Sept. 23, 2020 | SXC | Deferred Share Units | Common Stock (8,191) | — | — | 8,191 | Acquired |
| June 24, 2020 | SXC | Deferred Share Units | Common Stock (9,099) | — | — | 9,099 | Acquired |
| June 24, 2020 | SXC | Deferred Share Units | Common Stock (187) | — | — | 187 | Acquired |
| March 25, 2020 | SXC | Deferred Share Units | Common Stock (16) | — | — | 16 | Acquired |
| March 25, 2020 | SXC | Deferred Share Units | Common Stock (8,713) | — | — | 8,713 | Acquired |
| Dec. 18, 2019 | SXC | Deferred Share Units | Common Stock (1,496) | — | — | 1,496 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Dec. 12, 2019 | SXC | Common Stock | 2,394 | Indirect |