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.
13F holders, Q3 2021
Institutional positions in Merrimack Pharmaceuticals Inc as of Sep 30, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 38
- −4 vs. Q2 2021
- Shares held
- 7.68M
- −194.2K (−2.5%) vs. Q2 2021
- Total value
- $37.1M
- −$13.2M (−26.2%) vs. Q2 2021
- New holders
- 2
- 4 more added
- Sold out
- 6
- 13 more reduced
Compare with Q2 2021: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MACK on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1 | $0 |
| Q1 2026 | 1 | $0 |
| Q4 2025 | 1 | $0 |
| Q3 2025 | 1 | $0 |
| Q2 2025 | 1 | $0 |
| Q1 2025 | 1 | $0 |
| Q4 2024 | 2 | $370.7K |
| Q3 2024 | 2 | $0 |
| Q2 2024 | 12 | $5.32M |
| Q1 2024 | 70 | $137.1M |
| Q4 2023 | 67 | $124.9M |
| Q3 2023 | 63 | $104.4M |
| Q2 2023 | 62 | $98.5M |
| Q1 2023 | 50 | $91.0M |
| Q4 2022 | 47 | $86.6M |
| Q3 2022 | 41 | $30.0M |
| Q2 2022 | 42 | $48.0M |
| Q1 2022 | 40 | $49.4M |
| Q4 2021 | 37 | $29.3M |
| Q3 2021 | 38 | $37.1M |
| Q2 2021 | 42 | $50.3M |
| Q1 2021 | 43 | $49.8M |
Institutions, Q3 2021
Shares, value and share of portfolio for each institution holding Merrimack Pharmaceuticals Inc; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Wells Fargo & Company | 116 | $0 | 0.00% | −20−14.7% | Reduced |
| AdvisorNet Financial, Inc | 20 | $0 | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 67 | $0 | 0.00% | +67 | New |
| UBS Group AG | 197 | $1.00K | 0.00% | −302−60.5% | Reduced |
| Sandy Spring Bank | 300 | $1.00K | 0.00% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 220 | $1.00K | 0.00% | 00.0% | Unchanged |
| O'Shaughnessy Asset Management, LLC | 154 | $1.00K | 0.00% | +13+9.2% | Added |
| TSFG, LLC | 160 | $1.00K | 0.00% | 00.0% | Unchanged |
| Baldwin Brothers Inc | 500 | $2.00K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 2,008 | $10.0K | 0.00% | 00.0% | Unchanged |
| Bank of America Corp | 2,002 | $10.0K | 0.00% | +651+48.2% | Added |
| Webster Bank, N. A. | 3,055 | $15.0K | 0.00% | 00.0% | Unchanged |
| Mascoma Wealth Management LLC | 5,000 | $24.0K | 0.01% | +5,000 | New |
| Morgan Stanley | 5,828 | $28.0K | 0.00% | −5,333−47.8% | Reduced |
| Citadel Advisors LLC | 10,622 | $51.0K | 0.00% | −8,530−44.5% | Reduced |
| Cetera Advisor Networks LLC | 13,400 | $65.0K | 0.00% | 00.0% | Unchanged |
| Brown Advisory Inc | 15,029 | $73.0K | 0.00% | 00.0% | Unchanged |
| Northern Trust Corp | 25,151 | $121.0K | 0.00% | −6,527−20.6% | Reduced |
| Group One Trading, L.P. | 31,535 | $152.0K | 0.00% | −2,958−8.6% | Reduced |
| Two Sigma Advisers, LP | 32,481 | $157.0K | 0.00% | −9,685−23.0% | Reduced |
| Bank of New York Mellon Corp | 40,996 | $198.0K | 0.00% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 45,915 | $222.0K | 0.00% | −16,204−26.1% | Reduced |
| State Street Corp | 46,556 | $225.0K | 0.00% | 00.0% | Unchanged |
| Bridgeway Capital Management, LLC | 59,200 | $286.0K | 0.01% | 00.0% | Unchanged |
| Yakira Capital Management, Inc. | 60,634 | $293.0K | 0.05% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 62,520 | $302.0K | 0.00% | −39,450−38.7% | Reduced |
| Sepio Capital, LP | 78,829 | $381.0K | 0.03% | −142,610−64.4% | Reduced |
| Geode Capital Management, LLC | 96,692 | $467.0K | 0.00% | 00.0% | Unchanged |
| Wittenberg Investment Management, Inc. | 188,694 | $911.0K | 0.35% | −600−0.3% | Reduced |
| BlackRock Inc. | 211,051 | $1.02M | 0.00% | +23,961+12.8% | Added |
| Point72 Asset Management, L.P. | 341,685 | $1.65M | 0.01% | +132,122+63.0% | Added |
| Dimensional Fund Advisors LP | 499,368 | $2.41M | 0.00% | −18,277−3.5% | Reduced |
| Bronte Capital Management Pty Ltd. | 548,836 | $2.65M | 0.38% | 00.0% | Unchanged |
| Nantahala Capital Management, LLC | 569,971 | $2.75M | 0.16% | −1,975−0.3% | Reduced |
| Vanguard Group Inc | 618,609 | $2.99M | 0.00% | 00.0% | Unchanged |
| 22NW, LP | 1,241,896 | $6.00M | 1.79% | 00.0% | Unchanged |
| Western Standard LLC | 1,269,558 | $6.13M | 3.53% | 00.0% | Unchanged |
| Newtyn Management, LLC | 1,548,883 | $7.48M | 2.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −41,822−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −39,150−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −11,187−100.0% | Sold out |
| Price T Rowe Associates Inc | 0 | $0 | 0.00% | −10,500−100.0% | Sold out |
| JPMorgan Chase & Co | 0 | $0 | 0.00% | −525−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −328−100.0% | Sold out |