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 |
|---|---|---|---|---|---|
| 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 |
| 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 |
| Baldwin Brothers Inc | 500 | $2.00K | 0.00% | 00.0% | Unchanged |
| Bank of America Corp | 1,536 | $6.00K | 0.00% | 00.0% | Unchanged |
| Webster Bank, N. A. | 3,055 | $11.0K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 3,539 | $13.0K | 0.00% | +31+0.9% | Added |
| 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 |
| Morgan Stanley | 6,514 | $25.0K | 0.00% | −844−11.5% | Reduced |
| Simplex Trading, LLC | 8,692 | $32.0K | 0.00% | −27,776−76.2% | Reduced |
| Group One Trading, L.P. | 11,930 | $45.0K | 0.00% | −3,625−23.3% | Reduced |
| Citadel Advisors LLC | 13,718 | $51.0K | 0.00% | −2,493−15.4% | Reduced |
| Brown Advisory Inc | 15,029 | $56.0K | 0.00% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 18,681 | $70.0K | 0.00% | −300−1.6% | Reduced |
| Belvedere Trading LLC | 20,052 | $77.0K | 0.08% | +20,052 | New |
| Two Sigma Investments, LP | 21,519 | $81.0K | 0.00% | −3,400−13.6% | Reduced |
| Northern Trust Corp | 23,980 | $90.0K | 0.00% | +177+0.7% | Added |
| Bridgeway Capital Management, LLC | 34,200 | $128.0K | 0.00% | −25,000−42.2% | Reduced |
| Bank of New York Mellon Corp | 40,951 | $153.0K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 41,618 | $156.0K | 0.00% | +2,871+7.4% | Added |
| State Street Corp | 46,556 | $175.0K | 0.00% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 100,808 | $378.0K | 0.00% | 00.0% | Unchanged |
| Yakira Capital Management, Inc. | 115,821 | $434.0K | 0.06% | 00.0% | Unchanged |
| Wittenberg Investment Management, Inc. | 188,694 | $708.0K | 0.30% | 00.0% | Unchanged |
| BlackRock Inc. | 206,783 | $775.0K | 0.00% | −932−0.4% | Reduced |
| Sepio Capital, LP | 294,545 | $1.10M | 0.11% | −21,768−6.9% | Reduced |
| Nantahala Capital Management, LLC | 429,596 | $1.61M | 0.16% | −61,913−12.6% | Reduced |
| Dimensional Fund Advisors LP | 472,301 | $1.77M | 0.00% | −4,407−0.9% | Reduced |
| Vanguard Group Inc | 607,804 | $2.28M | 0.00% | −400−0.1% | Reduced |
| Point72 Asset Management, L.P. | 1,100,994 | $4.13M | 0.02% | +765,886+228.5% | Added |
| Western Standard LLC | 1,172,463 | $4.40M | 5.03% | −97,095−7.6% | Reduced |
| 22NW, LP | 1,231,014 | $4.62M | 2.61% | −10,882−0.9% | Reduced |
| Newtyn Management, LLC | 1,767,094 | $6.63M | 1.45% | +9,089+0.5% | Added |
| 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 |