Sullivan Mark — SEC Form 4 filings
SEC reporting owner CIK 1331843. 15 Form 4 filings on record with FilingPulse; latest filed 2026-09-14.
Transaction summary — filings shown
Covers all 15 filings on record, filed 2024-02-29 to 2026-09-14. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 9 legs across 9 filings — 91,134 shares, $1,353,281 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 6.
- Largest priced transaction: sale of 13,008 shares @ $45.03 ($585,750) in Definium Therapeutics, Inc., filed 2026-06-26.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| Definium Therapeutics, Inc. (DFTX) | Chief Legal Officer | 15 | — | 9 legs · 91,134 sh · $1,353,281 | 6 |
Form 4 filings — Sullivan Mark
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-14 | 4 | Definium Therapeutics, Inc. (DFTX) | Grant/award (A): 125,000 @ $0 | EDGAR |
| 2026-08-12 | 4 | Definium Therapeutics, Inc. (DFTX) | Grant/award (A): 62,500 @ $0 | EDGAR |
| 2026-06-26 | 4 | Definium Therapeutics, Inc. (DFTX) | Sale (S): 13,008 @ $45.03 | EDGAR |
| 2026-06-22 | 4 | Definium Therapeutics, Inc. (DFTX) | Grant/award (A): 62,500 @ $0 | EDGAR |
| 2026-03-26 | 4 | Definium Therapeutics, Inc. (DFTX) | Sale (S): 10,702 @ $18.47 | EDGAR |
| 2026-02-05 | 4 | Definium Therapeutics, Inc. (DFTX) | Grant/award (A): 125,000 @ $0 | EDGAR |
| 2025-12-29 | 4 | Mind Medicine (MindMed) Inc. (MNMD) | Sale (S): 11,276 @ $13.15 | EDGAR |
| 2025-09-26 | 4 | Mind Medicine (MindMed) Inc. (MNMD) | Sale (S): 11,278 @ $9.77 | EDGAR |
| 2025-06-26 | 4 | Mind Medicine (MindMed) Inc. (MNMD) | Sale (S): 11,491 @ $6.80 | EDGAR |
| 2025-03-26 | 4 | Mind Medicine (MindMed) Inc. (MNMD) | Sale (S): 6,576 @ $6.74 | EDGAR |
| 2025-03-13 | 4 | Mind Medicine (MindMed) Inc. (MNMD) | Grant/award (A): 150,000 @ $0 | EDGAR |
| 2024-12-27 | 4 | Mind Medicine (MindMed) Inc. (MNMD) | Sale (S): 4,519 @ $7.43 | EDGAR |
| 2024-09-25 | 4 | Mind Medicine (MindMed) Inc. (MNMD) | Sale (S): 4,430 @ $5.98 | EDGAR |
| 2024-06-25 | 4 | Mind Medicine (MindMed) Inc. (MNMD) | Sale (S): 17,854 @ $7.22 | EDGAR |
| 2024-02-29 | 4 | Mind Medicine (MindMed) Inc. (MNMD) | Grant/award (A): 125,000 (derivative) @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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