Stephen W Baker
CIK 1488318 · View on SEC EDGAR ↗
Insider
First SEC filing: July 9, 2021 · Latest: July 9, 2021
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 12 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 |
|---|---|---|---|---|---|---|---|---|---|
| May 5, 2026 | DTM | A | 1,093 | — | — | 1,093 Direct | — | Acquired | (price as of 2026-08-20) |
| Aug. 2, 2025 | DTM | M | 1,443 | — | — | 2,808 Direct | +105.71% | Acquired | (price as of 2026-08-20) |
| Aug. 2, 2025 | DTM | M | 1,208 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| May 6, 2025 | DTM | A | 1,145 | — | — | 1,145 Direct | — | Acquired | (price as of 2026-08-20) |
| Aug. 2, 2024 | DTM | M | 604 | — | — | 1,208 Direct | -33.33% | Disposed | (price as of 2026-08-20) |
| Aug. 2, 2024 | DTM | M | 699 | — | — | 1,365 Direct | +104.95% | Acquired | (price as of 2026-08-20) |
| May 10, 2024 | DTM | A | 1,758 | — | — | 1,758 Direct | — | Acquired | (price as of 2026-08-20) |
| Aug. 2, 2023 | DTM | M | 604 | — | — | 1,813 Direct | -24.99% | Disposed | (price as of 2026-08-20) |
| Aug. 2, 2023 | DTM | M | 666 | — | — | 666 Direct | — | Acquired | (price as of 2026-08-20) |
| May 5, 2023 | DTM | A | 2,451 | — | — | 2,451 Direct | — | Acquired | (price as of 2026-08-20) |
| May 6, 2022 | DTM | A | 1,795 | — | — | 1,795 Direct | — | Acquired | (price as of 2026-08-20) |
| Aug. 2, 2021 | DTM | A | 2,417 | — | — | 2,417 Direct | — | Acquired | (price as of 2026-08-20) |
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 |
|---|---|---|---|---|---|---|---|
| May 5, 2026 | DTM | Restricted Stock Units | Common Stock (1,093) | — | — | 1,093 | Acquired |
| Aug. 2, 2025 | DTM | Restricted Stock Units | Common Stock (1,208) | — | — | 1,208 | Disposed |
| May 6, 2025 | DTM | Restricted Stock Units | Common Stock (1,145) | — | — | 1,145 | Acquired |
| Aug. 2, 2024 | DTM | Restricted Stock Units | Common Stock (604) | — | — | 604 | Disposed |
| May 10, 2024 | DTM | Restricted Stock Units | Common Stock (1,758) | — | — | 1,758 | Acquired |
| Aug. 2, 2023 | DTM | Restricted Stock Units | Common Stock (604) | — | — | 604 | Disposed |
| May 5, 2023 | DTM | Restricted Stock Units | Common Stock (2,451) | — | — | 2,451 | Acquired |
| May 6, 2022 | DTM | Restricted Stock Units | Common Stock (1,795) | — | — | 1,795 | Acquired |
| Aug. 2, 2021 | DTM | Restricted Stock Units | Common Stock (2,417) | — | — | 2,417 | 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 |
|---|---|---|---|---|
| July 9, 2021 | DTM | Common Stock | 0 | Direct |