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 2022
Institutional positions in Merrimack Pharmaceuticals Inc as of Dec 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
- 47
- +6 vs. Q3 2022
- Shares held
- 7.55M
- −457.2K (−5.7%) vs. Q3 2022
- Total value
- $86.6M
- +$56.5M (+188.1%) vs. Q3 2022
- New holders
- 12
- 14 more added
- Sold out
- 6
- 11 more reduced
Compare with Q3 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, Q4 2022
Shares, value and share of portfolio for each institution holding Merrimack Pharmaceuticals Inc; share changes are against Q3 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Royal Bank of Canada | 8 | $0 | 0.00% | −3,531−99.8% | Reduced |
| GWM Advisors LLC | 1,406 | $16 | 0.00% | +1,406 | New |
| AdvisorNet Financial, Inc | 20 | $229 | 0.00% | 00.0% | Unchanged |
| Armstrong Advisory Group, Inc | 45 | $516 | 0.00% | +45 | New |
| Horrell Capital Management, Inc. | 50 | $1.00K | 0.00% | +50 | New |
| Federated Hermes, Inc. | 90 | $1.03K | 0.00% | −1−1.1% | Reduced |
| Barclays PLC | 135 | $1.55K | 0.00% | +135 | New |
| Wells Fargo & Company | 168 | $1.93K | 0.00% | −71−29.7% | Reduced |
| TSFG, LLC | 160 | $2.00K | 0.00% | 00.0% | Unchanged |
| Rise Advisors, LLC | 272 | $3.11K | 0.00% | 00.0% | Unchanged |
| Kayne Anderson Rudnick Investment Management LLC | 300 | $3.44K | 0.00% | 00.0% | Unchanged |
| Sandy Spring Bank | 300 | $3.44K | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 354 | $4.00K | 0.00% | +354 | New |
| Baldwin Brothers Inc | 500 | $5.73K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 775 | $8.88K | 0.00% | −4,421−85.1% | Reduced |
| Webster Bank, N. A. | 1,527 | $17.0K | 0.00% | −1,528−50.0% | Reduced |
| Bank of America Corp | 1,679 | $19.2K | 0.00% | +143+9.3% | Added |
| Freedom Wealth Alliance, LLC | 1,820 | $20.9K | 0.03% | +1,820 | New |
| Tower Research Capital LLC (TRC) | 3,242 | $37.0K | 0.00% | +3,057+1,652.4% | Added |
| Mascoma Wealth Management LLC | 5,000 | $57.3K | 0.02% | 00.0% | Unchanged |
| Morgan Stanley | 9,163 | $105.0K | 0.00% | +2,649+40.7% | Added |
| Two Sigma Advisers, LP | 11,181 | $128.1K | 0.00% | −7,500−40.1% | Reduced |
| Goldman Sachs Group Inc | 14,142 | $162.1K | 0.00% | +14,142 | New |
| Brown Advisory Inc | 15,029 | $172.2K | 0.00% | 00.0% | Unchanged |
| Millennium Management LLC | 16,985 | $195.0K | 0.00% | +16,985 | New |
| Northern Trust Corp | 25,822 | $295.9K | 0.00% | +1,842+7.7% | Added |
| Bridgeway Capital Management, LLC | 34,200 | $391.9K | 0.01% | 00.0% | Unchanged |
| Belvedere Trading LLC | 38,990 | $446.8K | 0.25% | +18,938+94.4% | Added |
| Two Sigma Investments, LP | 42,490 | $486.9K | 0.00% | +20,971+97.5% | Added |
| State Street Corp | 48,856 | $559.9K | 0.00% | +2,300+4.9% | Added |
| Pura Vida Investments, LLC | 64,100 | $734.6K | 0.12% | +64,100 | New |
| Boothbay Fund Management, LLC | 64,211 | $735.9K | 0.02% | +64,211 | New |
| OrbiMed Advisors LLC | 73,600 | $843.5K | 0.02% | +73,600 | New |
| Bank of New York Mellon Corp | 74,880 | $858.1K | 0.00% | +33,929+82.9% | Added |
| Yakira Capital Management, Inc. | 85,732 | $982.5K | 0.20% | −30,089−26.0% | Reduced |
| Geode Capital Management, LLC | 134,226 | $1.54M | 0.00% | +33,418+33.2% | Added |
| Wittenberg Investment Management, Inc. | 191,194 | $2.19M | 0.89% | +2,500+1.3% | Added |
| BlackRock Inc. | 209,758 | $2.40M | 0.00% | +2,975+1.4% | Added |
| Nantahala Capital Management, LLC | 210,000 | $2.41M | 0.22% | −219,596−51.1% | Reduced |
| Sio Capital Management, LLC | 250,000 | $2.87M | 1.53% | +250,000 | New |
| Susquehanna International Group, LLP | 255,336 | $2.93M | 0.01% | +213,718+513.5% | Added |
| Sepio Capital, LP | 294,545 | $3.38M | 0.29% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 471,373 | $5.40M | 0.00% | −928−0.2% | Reduced |
| Vanguard Group Inc | 588,021 | $6.74M | 0.00% | −19,783−3.3% | Reduced |
| 22NW, LP | 1,015,048 | $11.6M | 6.28% | −215,966−17.5% | Reduced |
| Western Standard LLC | 1,529,494 | $17.5M | 15.43% | +357,031+30.5% | Added |
| Newtyn Management, LLC | 1,768,394 | $20.3M | 4.18% | +1,300+0.1% | Added |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −1,100,994−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −13,718−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −11,930−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −8,692−100.0% | Sold out |
| FMR LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| City State Bank | 0 | $0 | 0.00% | −25−100.0% | Sold out |