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 2023
Institutional positions in Merrimack Pharmaceuticals Inc as of Sep 30, 2023. 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
- 63
- +1 vs. Q2 2023
- Shares held
- 8.47M
- +464.6K (+5.8%) vs. Q2 2023
- Total value
- $104.4M
- +$5.97M (+6.1%) vs. Q2 2023
- New holders
- 7
- 17 more added
- Sold out
- 6
- 16 more reduced
Compare with Q2 2023: 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 2023
Shares, value and share of portfolio for each institution holding Merrimack Pharmaceuticals Inc; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Nisa Investment Advisors, LLC | 15 | $185 | 0.00% | +15 | New |
| AdvisorNet Financial, Inc | 20 | $247 | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 24 | $296 | 0.00% | −3,093−99.2% | Reduced |
| Armstrong Advisory Group, Inc | 45 | $555 | 0.00% | 00.0% | Unchanged |
| Horrell Capital Management, Inc. | 50 | $1.00K | 0.00% | 00.0% | Unchanged |
| Covestor Ltd | 87 | $1.00K | 0.00% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 88 | $1.08K | 0.00% | −2−2.2% | Reduced |
| TSFG, LLC | 160 | $2.00K | 0.00% | 00.0% | Unchanged |
| Rise Advisors, LLC | 272 | $3.35K | 0.00% | 00.0% | Unchanged |
| Kayne Anderson Rudnick Investment Management LLC | 300 | $3.70K | 0.00% | 00.0% | Unchanged |
| Sandy Spring Bank | 300 | $3.70K | 0.00% | 00.0% | Unchanged |
| Comerica Bank | 500 | $6.17K | 0.00% | +500 | New |
| Metropolitan Life Insurance Co | 581 | $7.16K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 864 | $10.7K | 0.00% | +864 | New |
| Ameritas Investment Partners, Inc. | 865 | $10.7K | 0.00% | 00.0% | Unchanged |
| Deutsche Bank AG | 910 | $11.2K | 0.00% | +910 | New |
| Tower Research Capital LLC (TRC) | 1,164 | $14.4K | 0.00% | −9,403−89.0% | Reduced |
| Legal & General Group Plc | 1,286 | $15.9K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 1,341 | $16.0K | 0.00% | +86+6.9% | Added |
| GWM Advisors LLC | 1,406 | $17.3K | 0.00% | 00.0% | Unchanged |
| Webster Bank, N. A. | 1,527 | $18.8K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 1,539 | $19.0K | 0.00% | −1,187−43.5% | Reduced |
| Amalgamated Bank | 1,587 | $20.0K | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 1,845 | $22.7K | 0.00% | −3,772−67.2% | Reduced |
| Dorsey Wright & Associates | 1,933 | $23.8K | 0.01% | −67−3.4% | Reduced |
| Wells Fargo & Company | 2,173 | $26.8K | 0.00% | −2,273−51.1% | Reduced |
| California State Teachers Retirement System | 2,310 | $28.5K | 0.00% | −1,173−33.7% | Reduced |
| Lazard Asset Management LLC | 3,123 | $38.0K | 0.00% | 00.0% | Unchanged |
| Citadel Advisors LLC | 3,398 | $41.9K | 0.00% | −299−8.1% | Reduced |
| Group One Trading, L.P. | 4,528 | $55.8K | 0.00% | +4,528 | New |
| Mascoma Wealth Management LLC | 5,000 | $61.6K | 0.02% | 00.0% | Unchanged |
| American International Group, Inc. | 5,225 | $64.4K | 0.00% | +186+3.7% | Added |
| MetLife Investment Management | 5,610 | $69.2K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 5,848 | $72.1K | 0.00% | −711−10.8% | Reduced |
| Bank of America Corp | 6,054 | $74.6K | 0.00% | +2,239+58.7% | Added |
| JPMorgan Chase & Co | 6,787 | $83.7K | 0.00% | −1,557−18.7% | Reduced |
| New York State Common Retirement Fund | 8,207 | $101.2K | 0.00% | +107+1.3% | Added |
| FMR LLC | 9,326 | $115.0K | 0.00% | +8,990+2,675.6% | Added |
| Fifth Lane Capital, LP | 10,929 | $134.4K | 0.14% | 00.0% | Unchanged |
| Nuveen Asset Management, LLC | 13,719 | $169.2K | 0.00% | 00.0% | Unchanged |
| Rhumbline Advisers | 13,879 | $171.1K | 0.00% | +1,313+10.4% | Added |
| Charles Schwab Investment Management Inc | 29,628 | $365.3K | 0.00% | 00.0% | Unchanged |
| Bridgeway Capital Management, LLC | 34,200 | $421.7K | 0.01% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 34,953 | $431.0K | 0.00% | +20,811+147.2% | Added |
| Yakira Capital Management, Inc. | 54,118 | $667.3K | 0.18% | −10,000−15.6% | Reduced |
| Morgan Stanley | 93,177 | $1.15M | 0.00% | +10,492+12.7% | Added |
| Kennedy Capital Management, Inc. | 93,708 | $1.16M | 0.03% | +2,202+2.4% | Added |
| Bank of New York Mellon Corp | 99,703 | $1.23M | 0.00% | −614−0.6% | Reduced |
| Northern Trust Corp | 115,369 | $1.42M | 0.00% | −623−0.5% | Reduced |
| Indaba Capital Management, L.P. | 136,802 | $1.69M | 0.50% | +136,802 | New |
| Susquehanna International Group, LLP | 156,653 | $1.93M | 0.00% | +83,038+112.8% | Added |
| Centiva Capital, LP | 187,803 | $2.32M | 0.12% | +187,803 | New |
| State Street Corp | 191,844 | $2.37M | 0.00% | +17,739+10.2% | Added |
| Wittenberg Investment Management, Inc. | 209,739 | $2.59M | 0.95% | +4,745+2.3% | Added |
| Geode Capital Management, LLC | 251,585 | $3.10M | 0.00% | +7,783+3.2% | Added |
| Sio Capital Management, LLC | 288,466 | $3.56M | 1.10% | −2,283−0.8% | Reduced |
| Sepio Capital, LP | 306,680 | $3.78M | 0.33% | +12,135+4.1% | Added |
| Dimensional Fund Advisors LP | 448,752 | $5.53M | 0.00% | −11,208−2.4% | Reduced |
| Madison Avenue Partners, LP | 553,085 | $6.82M | 0.97% | 00.0% | Unchanged |
| Vanguard Group Inc | 600,344 | $7.40M | 0.00% | +43,546+7.8% | Added |
| BlackRock Inc. | 690,817 | $8.52M | 0.00% | +14,527+2.1% | Added |
| Newtyn Management, LLC | 1,873,694 | $23.1M | 5.70% | 00.0% | Unchanged |
| Western Standard LLC | 1,894,013 | $23.4M | 21.09% | +221,550+13.2% | Added |
| Nantahala Capital Management, LLC | 0 | $0 | 0.00% | −111,148−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −87,037−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −46,437−100.0% | Sold out |
| Connor, Clark & Lunn Investment Management Ltd. | 0 | $0 | 0.00% | −14,405−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −10,749−100.0% | Sold out |
| CWM, LLC | 0 | $0 | 0.00% | −275−100.0% | Sold out |