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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.

Q2 2024 vs. Q1 2024

How the institutions holding Merrimack Pharmaceuticals Inc changed between Q1 2024 and Q2 2024.

All holders in Q2 2024All holders in Q1 2024

13F holders of MACK: Q1 2024 compared with Q2 2024
MeasureQ1 2024Q2 2024Change
Holders7012−58
Shares9.28M437.3K−8.85M (−95.3%)
Value$137.1M$5.32M−$131.8M (−96.1%)

New holders (4)

Institutions that held Merrimack Pharmaceuticals Inc at the end of Q2 2024 but not at the end of Q1 2024.

Institutions new to MACK in Q2 2024
InstitutionSharesValue% of portfolio
JBF Capital, Inc.39,637$1.19K0.00%
Marshall Wace, LLP38,221$1.15K0.00%
Caldwell Sutter Capital, Inc.7,458$00.00%
Farther Finance Advisors, LLC77$00.00%

Sold out (62)

Institutions that held Merrimack Pharmaceuticals Inc at the end of Q1 2024 and filed for Q2 2024 without it.

Institutions that sold out of MACK in Q2 2024
InstitutionShares, Q1 2024Value, Q1 2024
Western Standard LLC2,172,513$32.1M
Newtyn Management, LLC1,873,694$27.7M
ADAR1 Capital Management, LLC902,350$13.3M
BlackRock Inc.723,294$10.7M
Vanguard Group Inc620,847$9.17M
Madison Avenue Partners, LP387,221$5.72M
Sepio Capital, LP298,545$4.41M
Invesco Ltd.277,124$4.09M
Geode Capital Management, LLC272,015$4.02M
State Street Corp246,853$3.65M
Wittenberg Investment Management, Inc.210,239$3.11M
Renaissance Technologies LLC162,184$2.40M
Yakira Capital Management, Inc.120,756$1.78M
Northern Trust Corp117,548$1.74M
Bank of New York Mellon Corp94,895$1.40M
Susquehanna International Group, LLP77,397$1.14M
Morgan Stanley39,442$582.6K
Bridgeway Capital Management, LLC34,200$505.1K
Charles Schwab Investment Management Inc29,628$437.6K
Two Sigma Investments, LP20,401$301.3K
STRS Ohio19,000$280.0K
Nuveen Asset Management, LLC13,719$202.6K
Johnson Investment Counsel Inc13,480$199.1K
UBS Group AG12,442$183.8K
JPMorgan Chase & Co11,786$174.1K
Jane Street Group, LLC11,124$164.3K
Schonfeld Strategic Advisors LLC10,800$159.5K
Martingale Asset Management L P10,520$155.4K
Sherbrooke Park Advisers LLC10,006$147.8K
Aristides Capital LLC10,000$147.7K
FMR LLC8,263$122.0K
Barclays PLC7,348$108.5K
MetLife Investment Management5,610$82.9K
American International Group, Inc.5,160$76.2K
BNP Paribas Arbitrage, SA5,077$75.0K
Bank of America Corp3,964$58.5K
Wells Fargo & Company3,211$47.4K
Lazard Asset Management LLC2,830$41.0K
Citigroup Inc1,956$28.9K
GWM Advisors LLC1,406$20.8K
New York State Common Retirement Fund1,287$19.0K
Russell Investments Group, Ltd.1,111$16.4K
California State Teachers Retirement System1,053$15.6K
Legal & General Group Plc980$14.5K
Ameritas Investment Partners, Inc.865$12.8K
Metropolitan Life Insurance Co581$8.58K
Comerica Bank500$7.38K
Citadel Advisors LLC444$6.56K
Royal Bank of Canada435$6.00K
Deutsche Bank AG383$5.66K
Amalgamated Bank353$5.00K
Kayne Anderson Rudnick Investment Management LLC300$4.43K
Sandy Spring Bank300$4.43K
Tower Research Capital LLC (TRC)280$4.14K
The PNC Financial Services Group, Inc.165$2.44K
TSFG, LLC160$2.00K
POM Investment Strategies, LLC69$1.02K
Horrell Capital Management, Inc.50$1.00K
Armstrong Advisory Group, Inc45$604
GAMMA Investing LLC2$30
Nelson, Van Denburg & Campbell Wealth Management Group, LLC2$29
Capital Advisors, Ltd. LLC28$0