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, Q1 2022
Institutional positions in Merrimack Pharmaceuticals Inc as of Mar 31, 2022. 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
- 40
- +3 vs. Q4 2021
- Shares held
- 7.90M
- +407.0K (+5.4%) vs. Q4 2021
- Total value
- $49.4M
- +$20.1M (+68.4%) vs. Q4 2021
- New holders
- 4
- 8 more added
- Sold out
- 1
- 10 more reduced
Compare with Q4 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, Q1 2022
Shares, value and share of portfolio for each institution holding Merrimack Pharmaceuticals Inc; share changes are against Q4 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 |
| Tower Research Capital LLC (TRC) | 193 | $1.00K | 0.00% | −435−69.3% | Reduced |
| Federated Hermes, Inc. | 91 | $1.00K | 0.00% | 00.0% | Unchanged |
| TSFG, LLC | 160 | $1.00K | 0.00% | 00.0% | Unchanged |
| Rise Advisors, LLC | 272 | $2.00K | 0.00% | 00.0% | Unchanged |
| Sandy Spring Bank | 300 | $2.00K | 0.00% | 00.0% | Unchanged |
| Kayne Anderson Rudnick Investment Management LLC | 300 | $2.00K | 0.00% | +300 | New |
| Cubist Systematic Strategies, LLC | 368 | $2.00K | 0.00% | +368 | New |
| Baldwin Brothers Inc | 500 | $3.00K | 0.00% | 00.0% | Unchanged |
| Bank of America Corp | 1,236 | $8.00K | 0.00% | −21−1.7% | Reduced |
| UBS Group AG | 2,303 | $15.0K | 0.00% | +2,106+1,069.0% | Added |
| Webster Bank, N. A. | 3,055 | $19.0K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 3,508 | $22.0K | 0.00% | −9−0.3% | Reduced |
| Mascoma Wealth Management LLC | 5,000 | $32.0K | 0.01% | 00.0% | Unchanged |
| Morgan Stanley | 6,123 | $39.0K | 0.00% | +1,001+19.5% | Added |
| Group One Trading, L.P. | 10,586 | $67.0K | 0.00% | +10,586 | New |
| Radnor Capital Management, LLC | 13,332 | $84.0K | 0.02% | 00.0% | Unchanged |
| Brown Advisory Inc | 15,029 | $95.0K | 0.00% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 23,181 | $147.0K | 0.00% | −2,500−9.7% | Reduced |
| Northern Trust Corp | 25,063 | $159.0K | 0.00% | −88−0.3% | Reduced |
| Two Sigma Investments, LP | 30,739 | $194.0K | 0.00% | −5,227−14.5% | Reduced |
| Susquehanna International Group, LLP | 37,730 | $239.0K | 0.00% | +10,431+38.2% | Added |
| Simplex Trading, LLC | 37,819 | $239.0K | 0.01% | +37,819 | New |
| Bank of New York Mellon Corp | 40,996 | $259.0K | 0.00% | 00.0% | Unchanged |
| State Street Corp | 46,556 | $294.0K | 0.00% | 00.0% | Unchanged |
| Bridgeway Capital Management, LLC | 59,200 | $374.0K | 0.01% | 00.0% | Unchanged |
| Yakira Capital Management, Inc. | 88,683 | $561.0K | 0.08% | +15,233+20.7% | Added |
| Geode Capital Management, LLC | 99,662 | $630.0K | 0.00% | +2,970+3.1% | Added |
| Wittenberg Investment Management, Inc. | 188,694 | $1.19M | 0.45% | 00.0% | Unchanged |
| BlackRock Inc. | 211,439 | $1.34M | 0.00% | −1,224−0.6% | Reduced |
| Sepio Capital, LP | 296,546 | $1.88M | 0.16% | +217,717+276.2% | Added |
| Point72 Asset Management, L.P. | 341,685 | $2.16M | 0.01% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 482,484 | $3.05M | 0.00% | −6,203−1.3% | Reduced |
| Nantahala Capital Management, LLC | 516,817 | $3.27M | 0.23% | −53,154−9.3% | Reduced |
| Bronte Capital Management Pty Ltd. | 578,313 | $3.66M | 0.52% | +40,729+7.6% | Added |
| Vanguard Group Inc | 608,204 | $3.85M | 0.00% | −8,644−1.4% | Reduced |
| Western Standard LLC | 1,172,463 | $6.80M | 6.46% | 00.0% | Unchanged |
| 22NW, LP | 1,241,896 | $7.86M | 2.85% | 00.0% | Unchanged |
| Newtyn Management, LLC | 1,713,612 | $10.8M | 2.59% | +164,729+10.6% | Added |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −19,461−100.0% | Sold out |