MACK insider transaction filings
MERRIMACK PHARMACEUTICALS INC — 1 most recent Form 4 filings from SEC EDGAR, normalized by FilingPulse. Latest filing: 2023-12-28. Screen MACK transaction legs live →
Insider transaction summary — last 90 days
No Form 4 filings for MACK between 2026-06-24 and 2026-09-22. The table below lists the most recent filings on record.
Recent Form 4 filings — MERRIMACK PHARMACEUTICALS INC
| Filed | Form | Insider | Reported transactions | Source |
|---|---|---|---|---|
| 2023-12-28 | 4 | Andersen Eric — Director Western Standard LLC WESTERN STANDARD PARTNERS LP Western Standard Partners QP, L.P. | Purchase (P): 48,693 @ $13.15 · Purchase (P): 857 @ $13.35 | EDGAR |
Recent 8-K events — MERRIMACK PHARMACEUTICALS INC
| Filed | Form | Items reported | Source |
|---|---|---|---|
| 2024-05-10 | 8-K | 5.07 — Submission of Matters to a Vote of Security Holders 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2024-05-09 | 8-K | 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2024-04-30 | 8-K | 3.01 — Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2024-03-27 | 8-K | 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2024-03-07 | 8-K | 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2024-02-13 | 8-K | 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
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