Mark G Whittenburg
CIK 1866737 · View on SEC EDGAR ↗
First SEC filing: July 23, 2021 · Latest: July 23, 2021
On this page
- Insider at Companies where this person is a reporting insider.
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
- Compensation Executive pay disclosed in company proxy statements.
Insider at
Insider transactions
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| April 13, 2023 | CNM | S 10b5-1 | 31,204 | $25.06 | $781,972 | 10,512 Direct | -74.80% | Disposed | 78.2% (price as of 2026-08-21) |
| March 3, 2023 | CNM | S 10b5-1 | 31,204 | $24.02 | $749,520 | 5,286 Direct | -85.51% | Disposed | 85.9% (price as of 2026-08-21) |
| Feb. 24, 2023 | CNM | S 10b5-1 | 24,793 | $23.04 | $571,231 | 5,286 Direct | -82.43% | Disposed | 93.8% (price as of 2026-08-21) |
| Feb. 17, 2023 | CNM | S 10b5-1 | 6,411 | $23.06 | $147,838 | 5,286 Direct | -54.81% | Disposed | 93.6% (price as of 2026-08-21) |
| Sept. 9, 2022 | CNM | S 10b5-1 | 19,729 | $24.78 | $488,885 | 5,286 Direct | -78.87% | Disposed | 80.2% (price as of 2026-08-21) |
| Aug. 18, 2022 | CNM | S 10b5-1 | 5,296 | $24.78 | $131,235 | 5,286 Direct | -50.05% | Disposed | 80.2% (price as of 2026-08-21) |
| Aug. 16, 2022 | CNM | S 10b5-1 | 6,179 | $24.79 | $153,177 | 5,286 Direct | -53.89% | Disposed | 80.1% (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 13, 2023 | CNM | Class B Common Stock and Limited Partnership Interests | Class A Common Stock (31,204) | — | — | 31,204 | Disposed |
| April 13, 2023 | CNM | Class B Common Stock and Limited Partnership Interests | Class A Common Stock (31,204) | — | — | 31,204 | Acquired |
| April 13, 2023 | CNM | Class B Common Stock and Limited Partnership Interests | Class A Common Stock (31,204) | — | — | 31,204 | Disposed |
| March 10, 2023 | CNM | Options (Rights to Buy) | Class A Common Stock (42,993) | $22.11 | March 10, 2033 | 42,993 | Acquired |
| March 3, 2023 | CNM | Class B Common Stock and Limited Partnership Interests | Class A Common Stock (31,204) | — | — | 31,204 | Disposed |
| March 3, 2023 | CNM | Class B Common Stock and Limited Partnership Interests | Class A Common Stock (31,204) | — | — | 31,204 | Acquired |
| March 3, 2023 | CNM | Class B Common Stock and Limited Partnership Interests | Class A Common Stock (31,204) | — | — | 31,204 | Disposed |
| Feb. 24, 2023 | CNM | Class B Common Stock and Limited Partnership Interests | Class A Common Stock (24,793) | — | — | 24,793 | Disposed |
| Feb. 24, 2023 | CNM | Class B Common Stock and Limited Partnership Interests | Class A Common Stock (24,793) | — | — | 24,793 | Acquired |
| Feb. 24, 2023 | CNM | Class B Common Stock and Limited Partnership Interests | Class A Common Stock (24,793) | — | — | 24,793 | Disposed |
| Feb. 17, 2023 | CNM | Class B Common Stock and Limited Partnership Interests | Class A Common Stock (6,411) | — | — | 6,411 | Disposed |
| Feb. 17, 2023 | CNM | Class B Common Stock and Limited Partnership Interests | Class A Common Stock (6,411) | — | — | 6,411 | Acquired |
| Feb. 17, 2023 | CNM | Class B Common Stock and Limited Partnership Interests | Class A Common Stock (6,411) | — | — | 6,411 | Disposed |
| Sept. 9, 2022 | CNM | Class B Common Stock and Limited Partnership Interests | Class A Common Stock (19,729) | — | — | 19,729 | Disposed |
| Sept. 9, 2022 | CNM | Class B Common Stock and Limited Partnership Interests | Class A Common Stock (19,729) | — | — | 19,729 | Acquired |
| Sept. 9, 2022 | CNM | Class B Common Stock and Limited Partnership Interests | Class A Common Stock (19,729) | — | — | 19,729 | Disposed |
| Aug. 18, 2022 | CNM | Class B Common Stock and Limited Partnership Interests | Class A Common Stock (5,296) | — | — | 5,296 | Disposed |
| Aug. 18, 2022 | CNM | Class B Common Stock and Limited Partnership Interests | Class A Common Stock (5,296) | — | — | 5,296 | Acquired |
| Aug. 18, 2022 | CNM | Class B Common Stock and Limited Partnership Interests | Class A Common Stock (5,296) | — | — | 5,296 | Disposed |
| Aug. 16, 2022 | CNM | Class B Common Stock and Limited Partnership Interests | Class A Common Stock (5,876) | — | — | 5,876 | Disposed |
| Aug. 16, 2022 | CNM | Class B Common Stock and Limited Partnership Interests | Class A Common Stock (5,876) | — | — | 5,876 | Acquired |
| Aug. 16, 2022 | CNM | Class B Common Stock and Limited Partnership Interests | Class A Common Stock (5,876) | — | — | 5,876 | Disposed |
| March 11, 2022 | CNM | Options (Rights to Buy) | Class A Common Stock (38,586) | $20.81 | March 10, 2032 | 38,586 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 2 holdings
Securities held when first becoming an insider, per SEC Form 3.
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
CNM
General Counsel| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2025 | $499,616 | — | $1,657,852 | $473,417 | $71,442 | — | $33,061 | $2,735,388 |
| 2022 | $433,269 | — | $110,002 | $330,023 | $528,000 | — | $143,391 | $1,544,685 |
| 2021 | $397,500 | — | — | — | $498,000 | — | $48,781 | $944,281 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.