Merrimack Pharmaceuticals (MACK) Institutional Ownership → 4 Cryptos BETTER than Bitcoin (From True Market Insiders) (Ad) Free MACK Stock Alerts $15.13 0.00 (0.00%) (As of 05/17/2024 ET) Add Compare Share Share OwnershipStock AnalysisChartCompetitorsDividendEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSocial MediaStock AnalysisChartCompetitorsDividendEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSocial Media Institutional Ownership Changes (13F Filings) for Merrimack Pharmaceuticals (NASDAQ:MACK)CurrentInstitutional OwnershipPercentage63.97%Number ofInstitutional Buyers(last 12 months)11TotalInstitutional Inflows(last 12 months)$8.44MNumber ofInstitutional Sellers(last 12 months)0 Get MACK Insider Trade Alerts Want to know when executives and insiders are buying or selling Merrimack Pharmaceuticals stock? 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Email Address Skip Chart & View Institutional Buying and Selling Data MACK Institutional Buying and Selling by Quarter Ad True Market Insiders4 Cryptos BETTER than BitcoinFormer Wall Street Insider and Professional Money Manager Reveals 4 Cryptos BETTER Than BitcoinClick For My #1 FREE Crypto for 2024 Merrimack Pharmaceuticals Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails5/15/2024 Aristides Capital LLC10,000$148K0.1%N/A0.069% 5/10/2024 Vanguard Group Inc.620,847$9.17M0.0%+2.0%4.272% 5/1/2024 BNP Paribas Financial Markets5,077$75K0.0%+67.3%0.035% 2/14/2024 ADAR1 Capital Management LLC549,418$7.37M2.6%N/A3.837% 1/30/2024 Strs Ohio3,300$44K0.0%N/A0.023% 1/25/2024 Allspring Global Investments Holdings LLC11,827$159K0.0%N/A0.083% Get the Latest News and Ratings for MACK and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Merrimack Pharmaceuticals and its competitors with MarketBeat's FREE daily newsletter. 11/15/2023 Kennedy Capital Management LLC93,708$1.16M0.0%+2.4%0.654% 11/14/2023 Wittenberg Investment Management Inc.209,739$2.59M0.9%+2.3%1.465% 11/8/2023 Sepio Capital LP306,680$3.78M0.3%+4.1%2.142% 8/11/2023 Wittenberg Investment Management Inc.204,994$2.52M0.9%+3.5%1.432% 8/4/2023 American International Group Inc.5,039$62K0.0%N/A0.035% 8/3/2023 Fifth Lane Capital LP10,929$134K0.0%N/A0.077% 5/15/2023 Wittenberg Investment Management Inc.197,994$2.43M0.9%+3.6%1.388% 5/15/2023 Madison Avenue Partners LP553,085$6.80M1.5%N/A3.879% 5/15/2023 Sio Capital Management LLC272,843$3.35M1.7%+9.1%1.913% 5/12/2023 Yakira Capital Management Inc.72,118$886K0.2%-15.9%0.506% 2/15/2023 Nantahala Capital Management LLC210,000$2.41M0.2%-51.1%1.566% 2/10/2023 22NW LP1,015,048$11.63M6.3%-17.5%7.569% 2/10/2023 Yakira Capital Management Inc.85,732$982K0.2%-26.0%0.639% 2/6/2023 Wittenberg Investment Management Inc.191,194$2.19M0.9%+1.3%1.426% 11/14/2022 Point72 Asset Management L.P.1,100,994$4.13M0.0%+228.5%8.210% 11/10/2022 Nantahala Capital Management LLC429,596$1.61M0.1%-12.6%3.204% 10/28/2022 Sepio Capital LP294,545$1.11M0.1%-6.9%2.196% 8/16/2022 Western Standard LLC1,269,558$7.55M5.7%+8.3%9.467% 8/15/2022 Nantahala Capital Management LLC491,509$2.92M0.1%-4.9%3.665% 8/11/2022 Yakira Capital Management Inc.115,821$689K0.1%+30.6%0.864% 7/26/2022 Sepio Capital LP316,313$1.88M0.2%+6.7%2.359% 5/13/2022 Bronte Capital Management Pty Ltd.578,313$3.66M0.3%+7.6%4.313% 5/12/2022 Yakira Capital Management Inc.88,683$561K0.1%+20.7%0.661% 5/9/2022 Sepio Capital LP296,546$1.88M0.2%+276.2%2.211% 2/16/2022 Western Standard LLC1,172,463$4.58M2.7%-7.6%8.743% 2/10/2022 Bronte Capital Management Pty Ltd.537,584$2.10M0.1%-2.1%4.009% 2/9/2022 Dimensional Fund Advisors LP488,687$1.91M0.0%-2.1%3.644% 2/9/2022 Yakira Capital Management Inc.73,450$287K0.0%+21.1%0.548% 1/20/2022 Radnor Capital Management LLC13,332$52K0.0%N/A0.099% 11/15/2021 Point72 Asset Management L.P.341,685$1.65M0.0%+63.0%2.548% 11/15/2021 Dimensional Fund Advisors LP499,368$2.41M0.0%-3.5%3.724% 11/9/2021 BlackRock Inc.211,051$1.02M0.0%+12.8%1.574% 11/3/2021 Sepio Capital LP78,829$381K0.0%-64.4%0.588% 8/25/2021 Marshall Wace LLP39,150$250K0.0%-57.3%0.292% POTUS in ‘25 Not Biden/Trump, But (Ad)And I believe when they do take the oath of office, their fingers will be crossed… and America will descend into chaos.Click here now to see my urgent election warning.8/17/2021 Bridgeway Capital Management LLC59,200$378K0.0%-7.8%0.441% 8/16/2021 Point72 Asset Management L.P.209,563$1.34M0.0%N/A1.563% 8/16/2021 Nantahala Capital Management LLC571,946$3.66M0.1%-6.1%4.265% 8/16/2021 State Street Corp46,556$297K0.0%+316.2%0.347% 8/16/2021 Western Standard LLC1,269,558$8.11M4.8%+25.5%9.467% 8/16/2021 Marshall Wace LLP39,150$250K0.0%-57.3%0.292% 8/13/2021 Renaissance Technologies LLC101,970$652K0.0%-45.8%0.760% 8/13/2021 Northern Trust Corp31,678$203K0.0%-12.5%0.236% 8/13/2021 Geode Capital Management LLC96,692$617K0.0%+6.0%0.721% 8/12/2021 Wittenberg Investment Management Inc.189,294$1.21M0.5%+1.7%1.412% 5/18/2021 Millennium Management LLC12,292$77K0.0%N/A0.092% 5/17/2021 Price T Rowe Associates Inc. MD10,500$66K0.0%N/A0.078% 5/14/2021 Nantahala Capital Management LLC608,974$3.82M0.1%-19.0%4.541% 5/14/2021 Dimensional Fund Advisors LP519,220$3.26M0.0%-5.7%3.872% 5/13/2021 Renaissance Technologies LLC188,161$1.18M0.0%+6.4%1.403% 5/13/2021 Bank of New York Mellon Corp42,225$265K0.0%+140.7%0.315% 5/12/2021 Geode Capital Management LLC91,208$572K0.0%+9.3%0.680% 5/10/2021 Sepio Capital LP218,907$1.38M0.1%+13.1%1.632% 5/7/2021 BlackRock Inc.255,503$1.61M0.0%+1.4%1.905% 4/26/2021 Mascoma Wealth Management LLC5,000$31K0.0%N/A0.037% 4/13/2021 Bronte Capital Management Pty Ltd.550,679$3.46M0.4%+3.6%4.106% 3/8/2021 Dimensional Fund Advisors LP550,539$3.79M0.0%-2.9%4.115% 2/25/2021 Dimensional Fund Advisors LP550,539$3.79M0.0%-2.9%4.115% 2/10/2021 Renaissance Technologies LLC176,861$1.22M0.0%N/A1.322% 12/16/2020 Bronte Capital Management Pty Ltd.531,510$2.05M0.4%N/A3.972% 11/17/2020 Nantahala Capital Management LLC751,943$3.01M0.1%+0.6%5.620% 11/12/2020 Bronte Capital Management Pty Ltd.531,510$2.05M0.4%N/A3.972% 10/29/2020 LVW Advisors LLC20,000$80K0.0%N/A0.149% 8/17/2020 Private Advisor Group LLC7,562$25K0.0%N/A0.057% 8/14/2020 Western Standard LLC869,354$2.90M3.5%+3.1%6.497% (Data available from 1/1/2016 forward) MACK Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of MACK shares? During the previous two years, 18 institutional investors and hedge funds held shares of Merrimack Pharmaceuticals. The most heavily invested institutionals were 22NW LP ($11.63M), Vanguard Group Inc. ($9.17M), Western Standard LLC ($7.55M), ADAR1 Capital Management LLC ($7.37M), Madison Avenue Partners LP ($6.80M), Point72 Asset Management L.P. ($4.13M), and Sepio Capital LP ($3.78M).Learn more on MACK's institutional investors. What percentage of Merrimack Pharmaceuticals stock is owned by institutional investors? 63.97% of Merrimack Pharmaceuticals stock is owned by institutional investors. Learn more on MACK's institutional investor holdings. Which institutional investors have been buying Merrimack Pharmaceuticals stock? Of the 16 institutional investors that purchased Merrimack Pharmaceuticals stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Point72 Asset Management L.P. ($765.89K), Madison Avenue Partners LP ($553.09K), ADAR1 Capital Management LLC ($549.42K), Western Standard LLC ($97.10K), Sepio Capital LP ($31.90K), Yakira Capital Management Inc. ($27.14K), and Sio Capital Management LLC ($22.84K). How much institutional buying is happening at Merrimack Pharmaceuticals? Institutional investors have bought a total of 2,125,645 shares in the last 24 months. This purchase volume represents approximately $19.36M in transactions. Which Merrimack Pharmaceuticals major shareholders have been selling company stock? The following institutional investors have sold Merrimack Pharmaceuticals stock in the last 24 months: Nantahala Capital Management LLC ($306.82K), 22NW LP ($215.97K), Yakira Capital Management Inc. ($43.70K), and Sepio Capital LP ($21.77K). How much institutional selling is happening at Merrimack Pharmaceuticals? Institutional investors have sold a total of 588,254 shares in the last 24 months. This volume of shares sold represents approximately $5.97M in transactions. Related Companies: EBS Major Shareholders RIGL Major Shareholders XOMA Major Shareholders VNDA Major Shareholders RGLS Major Shareholders VSTM Major Shareholders LXRX Major Shareholders VERU Major Shareholders HOWL Major Shareholders ELYM Major Shareholders This page (NASDAQ:MACK) was last updated on 5/18/2024 by MarketBeat.com Staff From Our PartnersShocking $16T Elon Musk Crypto LeakCrypto 101 MediaCEO of Biggest AI Chipmaker Just Dropped a Bombshell…Banyan Hill PublishingMake this ONE trade on Tuesday at 2 p.m. EST!Monument Traders AllianceThe Presidential candidate you should REALLY be worried aboutStansberry ResearchProtect Your Bank Account Before It’s Too LateWeiss RatingsForget Bitcoin. 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