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, Q4 2021
Institutional positions in Merrimack Pharmaceuticals Inc as of Dec 31, 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
- 37
- −1 vs. Q3 2021
- Shares held
- 7.50M
- −180.5K (−2.4%) vs. Q3 2021
- Total value
- $29.3M
- −$7.77M (−21.0%) vs. Q3 2021
- New holders
- 3
- 4 more added
- Sold out
- 4
- 10 more reduced
Compare with Q3 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, Q4 2021
Shares, value and share of portfolio for each institution holding Merrimack Pharmaceuticals Inc; share changes are against Q3 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Wells Fargo & Company | 116 | $0 | 0.00% | 00.0% | Unchanged |
| AdvisorNet Financial, Inc | 20 | $0 | 0.00% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 91 | $1.00K | 0.00% | −129−58.6% | Reduced |
| Sandy Spring Bank | 300 | $1.00K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 197 | $1.00K | 0.00% | 00.0% | Unchanged |
| TSFG, LLC | 160 | $1.00K | 0.00% | 00.0% | Unchanged |
| Rise Advisors, LLC | 272 | $1.06K | 0.00% | +272 | New |
| Baldwin Brothers Inc | 500 | $2.00K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 628 | $2.00K | 0.00% | +561+837.3% | Added |
| Bank of America Corp | 1,257 | $5.00K | 0.00% | −745−37.2% | Reduced |
| Webster Bank, N. A. | 3,055 | $12.0K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 3,517 | $14.0K | 0.00% | +1,509+75.1% | Added |
| Morgan Stanley | 5,122 | $19.0K | 0.00% | −706−12.1% | Reduced |
| Mascoma Wealth Management LLC | 5,000 | $20.0K | 0.01% | 00.0% | Unchanged |
| Radnor Capital Management, LLC | 13,332 | $52.0K | 0.01% | +13,332 | New |
| Brown Advisory Inc | 15,029 | $59.0K | 0.00% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 19,461 | $76.0K | 0.00% | −43,059−68.9% | Reduced |
| Northern Trust Corp | 25,151 | $98.0K | 0.00% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 25,681 | $100.0K | 0.00% | −6,800−20.9% | Reduced |
| Susquehanna International Group, LLP | 27,299 | $107.0K | 0.00% | +27,299 | New |
| Two Sigma Investments, LP | 35,966 | $141.0K | 0.00% | −9,949−21.7% | Reduced |
| Bank of New York Mellon Corp | 40,996 | $160.0K | 0.00% | 00.0% | Unchanged |
| State Street Corp | 46,556 | $182.0K | 0.00% | 00.0% | Unchanged |
| Bridgeway Capital Management, LLC | 59,200 | $231.0K | 0.00% | 00.0% | Unchanged |
| Yakira Capital Management, Inc. | 73,450 | $287.0K | 0.04% | +12,816+21.1% | Added |
| Sepio Capital, LP | 78,829 | $308.0K | 0.02% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 96,692 | $378.0K | 0.00% | 00.0% | Unchanged |
| Wittenberg Investment Management, Inc. | 188,694 | $738.0K | 0.27% | 00.0% | Unchanged |
| BlackRock Inc. | 212,663 | $832.0K | 0.00% | +1,612+0.8% | Added |
| Point72 Asset Management, L.P. | 341,685 | $1.34M | 0.01% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 488,687 | $1.91M | 0.00% | −10,681−2.1% | Reduced |
| Bronte Capital Management Pty Ltd. | 537,584 | $2.10M | 0.27% | −11,252−2.1% | Reduced |
| Nantahala Capital Management, LLC | 569,971 | $2.23M | 0.14% | 00.0% | Unchanged |
| Vanguard Group Inc | 616,848 | $2.41M | 0.00% | −1,761−0.3% | Reduced |
| Western Standard LLC | 1,172,463 | $4.58M | 2.71% | −97,095−7.6% | Reduced |
| 22NW, LP | 1,241,896 | $4.86M | 1.50% | 00.0% | Unchanged |
| Newtyn Management, LLC | 1,548,883 | $6.06M | 1.61% | 00.0% | Unchanged |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −31,535−100.0% | Sold out |
| Cetera Advisor Networks LLC | 0 | $0 | 0.00% | −13,400−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −10,622−100.0% | Sold out |
| O'Shaughnessy Asset Management, LLC | 0 | $0 | 0.00% | −154−100.0% | Sold out |