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 2022
Institutional positions in Merrimack Pharmaceuticals Inc as of Sep 30, 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
- 41
- −1 vs. Q2 2022
- Shares held
- 8.01M
- −51.8K (−0.6%) vs. Q2 2022
- Total value
- $30.0M
- −$17.9M (−37.4%) vs. Q2 2022
- New holders
- 2
- 8 more added
- Sold out
- 3
- 14 more reduced
Compare with Q2 2022: 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 2022
Shares, value and share of portfolio for each institution holding Merrimack Pharmaceuticals Inc; share changes are against Q2 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Newtyn Management, LLC | 1,767,094 | $6.63M | 1.45% | +9,089+0.5% | Added |
| 22NW, LP | 1,231,014 | $4.62M | 2.61% | −10,882−0.9% | Reduced |
| Western Standard LLC | 1,172,463 | $4.40M | 5.03% | −97,095−7.6% | Reduced |
| Point72 Asset Management, L.P. | 1,100,994 | $4.13M | 0.02% | +765,886+228.5% | Added |
| Vanguard Group Inc | 607,804 | $2.28M | 0.00% | −400−0.1% | Reduced |
| Dimensional Fund Advisors LP | 472,301 | $1.77M | 0.00% | −4,407−0.9% | Reduced |
| Nantahala Capital Management, LLC | 429,596 | $1.61M | 0.16% | −61,913−12.6% | Reduced |
| Sepio Capital, LP | 294,545 | $1.10M | 0.11% | −21,768−6.9% | Reduced |
| BlackRock Inc. | 206,783 | $775.0K | 0.00% | −932−0.4% | Reduced |
| Wittenberg Investment Management, Inc. | 188,694 | $708.0K | 0.30% | 00.0% | Unchanged |
| Yakira Capital Management, Inc. | 115,821 | $434.0K | 0.06% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 100,808 | $378.0K | 0.00% | 00.0% | Unchanged |
| State Street Corp | 46,556 | $175.0K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 41,618 | $156.0K | 0.00% | +2,871+7.4% | Added |
| Bank of New York Mellon Corp | 40,951 | $153.0K | 0.00% | 00.0% | Unchanged |
| Bridgeway Capital Management, LLC | 34,200 | $128.0K | 0.00% | −25,000−42.2% | Reduced |
| Northern Trust Corp | 23,980 | $90.0K | 0.00% | +177+0.7% | Added |
| Two Sigma Investments, LP | 21,519 | $81.0K | 0.00% | −3,400−13.6% | Reduced |
| Belvedere Trading LLC | 20,052 | $77.0K | 0.08% | +20,052 | New |
| Two Sigma Advisers, LP | 18,681 | $70.0K | 0.00% | −300−1.6% | Reduced |
| Brown Advisory Inc | 15,029 | $56.0K | 0.00% | 00.0% | Unchanged |
| Citadel Advisors LLC | 13,718 | $51.0K | 0.00% | −2,493−15.4% | Reduced |
| Group One Trading, L.P. | 11,930 | $45.0K | 0.00% | −3,625−23.3% | Reduced |
| Simplex Trading, LLC | 8,692 | $32.0K | 0.00% | −27,776−76.2% | Reduced |
| Morgan Stanley | 6,514 | $25.0K | 0.00% | −844−11.5% | Reduced |
| Mascoma Wealth Management LLC | 5,000 | $19.0K | 0.01% | 00.0% | Unchanged |
| UBS Group AG | 5,196 | $19.0K | 0.00% | +3,952+317.7% | Added |
| Royal Bank of Canada | 3,539 | $13.0K | 0.00% | +31+0.9% | Added |
| Webster Bank, N. A. | 3,055 | $11.0K | 0.00% | 00.0% | Unchanged |
| Bank of America Corp | 1,536 | $6.00K | 0.00% | 00.0% | Unchanged |
| Baldwin Brothers Inc | 500 | $2.00K | 0.00% | 00.0% | Unchanged |
| Kayne Anderson Rudnick Investment Management LLC | 300 | $1.00K | 0.00% | 00.0% | Unchanged |
| Sandy Spring Bank | 300 | $1.00K | 0.00% | 00.0% | Unchanged |
| Rise Advisors, LLC | 272 | $1.00K | 0.00% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 91 | $1.00K | 0.00% | 00.0% | Unchanged |
| TSFG, LLC | 160 | $1.00K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 239 | $1.00K | 0.00% | +117+95.9% | Added |
| Tower Research Capital LLC (TRC) | 185 | $1.00K | 0.00% | +125+208.3% | Added |
| AdvisorNet Financial, Inc | 20 | $0 | 0.00% | 00.0% | Unchanged |
| City State Bank | 25 | $0 | 0.00% | 00.0% | Unchanged |
| FMR LLC | 1 | $0 | 0.00% | +1 | New |
| Bronte Capital Management Pty Ltd. | 0 | $0 | 0.00% | −578,313−100.0% | Sold out |
| Goldman Sachs Group Inc | 0 | $0 | 0.00% | −14,142−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −800−100.0% | Sold out |