Merrimack Pharmaceuticals Inc
MACKDelisted May 10, 2024- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001274792
Merrimack Pharmaceuticals Inc was delisted on May 10, 2024; its insiders filed their last Form 4 on Dec 28, 2023; 70 institutions reported holding it in 13F filings for Q1 2024, worth $137.1M in total; no superinvestor held it.
Q4 2025 vs. Q3 2025
How the institutions holding Merrimack Pharmaceuticals Inc changed between Q3 2025 and Q4 2025.
All holders in Q4 2025All holders in Q3 2025
| Measure | Q3 2025 | Q4 2025 | Change |
|---|---|---|---|
| Holders | 1 | 1 | 0 |
| Shares | 24.5K | 24.5K | 0 (0.0%) |
| Value | $0 | $0 | $0 |
New holders (0)
Institutions that held Merrimack Pharmaceuticals Inc at the end of Q4 2025 but not at the end of Q3 2025.
None.
Sold out (0)
Institutions that held Merrimack Pharmaceuticals Inc at the end of Q3 2025 and filed for Q4 2025 without it.
None.