Sullivan Mark
Officer · DFTX, MNMD
As of 2026-09-27, Sullivan Mark has 15 Form 4 transactions on record across 2 companies — 7 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Pattern in the record: open-market sales filed in June in multiple years since 2024 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-06-25 | DFTX | Sale | 13,008 @ $45.03 | $586K | −3.9% of holding | 320,571 | Form 4 |
| 2026-03-25 | DFTX | Sale | 10,702 @ $18.47 | $198K | −3.8% of holding | 271,079 | Form 4 |
| 2025-12-26 | MNMD | Sale | 11,276 @ $13.15 | $148K | −3.8% of holding | 282,576 | Form 4 |
| 2025-09-25 | MNMD | Sale | 11,278 @ $9.77 | $110K | −3.7% of holding | 293,852 | Form 4 |
| 2025-06-25 | MNMD | Sale | 11,491 @ $6.80 | $78K | −3.6% of holding | 305,130 | Form 4 |
| 2025-03-25 | MNMD | Sale | 6,576 @ $6.74 | $44K | −2.0% of holding | 316,621 | Form 4 |
| 2024-12-26 | MNMD | Sale | 4,519 @ $7.43 | $34K | −2.5% of holding | 173,197 | Form 4 |
| 2024-09-25 | MNMD | Sale | 4,430 @ $5.98 | $26K | −2.4% of holding | 177,716 | Form 4 |
| 2024-06-25 | MNMD | Sale | 17,854 @ $7.22 | $129K | −8.9% of holding | 182,146 | Form 4 |
6 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-09-14 | DFTX | Award / grant | 125,000 | 508,279 | Form 4 |
| 2026-08-12 | DFTX | Award / grant | 62,500 | 383,071 | Form 4 |
| 2026-06-22 | DFTX | Award / grant | 62,500 | 333,579 | Form 4 |
| 2026-02-03 | DFTX | Award / grant | 125,000 | 407,576 | Form 4 |
| 2025-03-12 | MNMD | Award / grant | 150,000 | 323,197 | Form 4 |
| 2024-02-27 | MNMD | Award / grant | 125,000 | 125,000 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.