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Merrimack Pharmaceuticals Inc (MACK) Insider Trading

Total insider buys:
  • $16,840,297.18
Total insider sells:
  • $13,368,004.02
Most recent insider trade:
  • Dec. 28, 2023
Most active insider trader:
  • Gary L Crocker
Trader NameDateTitleAmountPriceTypeTotal Value
April 13, 2015Director20,000$13.00Sell$260,000.00
March 24, 2015CEO114,368$11.71Sell$1,339,249.28
March 23, 2015CEO10,400$11.69Sell$121,576.00
March 20, 2015Director5,000$11.77Buy$58,850.00
March 19, 2015Director40,000$11.97Sell$478,800.00
March 19, 2015CFO15,000$11.97Sell$179,550.00
March 17, 2015SVP8,000$11.95Sell$95,600.00
March 17, 2015Director1,190$11.77Buy$14,006.30
March 17, 2015Insider42,234$12.00Sell$506,808.00
March 16, 2015SVP6,000$11.93Sell$71,580.00
March 16, 2015Insider20,897$12.00Sell$250,764.00
March 11, 2015Director5,000$11.33Buy$56,650.00
March 2, 2015Director5,000$10.93Buy$54,650.00
Feb. 23, 2015Director20,000$10.91Sell$218,200.00
Feb. 20, 2015CEO150,000$10.94Sell$1,641,000.00
Jan. 15, 2015SVP6,000$11.19Sell$67,140.00
Dec. 24, 2014CFO15,000$10.70Sell$160,500.00
Dec. 23, 2014Director20,000$10.23Buy$204,600.00
Dec. 18, 2014Director20,000$10.31Sell$206,200.00
Dec. 15, 2014SVP6,000$10.63Sell$63,780.00
Dec. 8, 2014CEO200,000$9.84Sell$1,968,000.00
Dec. 2, 2014Director8,000$8.71Buy$69,680.00
Nov. 21, 2014Director11,909$8.87Buy$105,632.83
Nov. 18, 2014SVP5,000$8.55Sell$42,750.00
Nov. 14, 2014Director5,000$8.29Buy$41,450.00
Nov. 13, 2014Director14,390$8.47Buy$121,883.30
Nov. 12, 2014Director40,000$8.37Buy$334,800.00
Oct. 23, 2014SVP3,000$9.05Sell$27,150.00
Sept. 30, 2014CFO105,282$8.61Sell$906,478.02
Sept. 29, 2014CFO64,404$8.40Sell$540,993.60
Sept. 24, 2014SVP12,000$8.22Sell$98,640.00
June 23, 2014Director36,000$6.84Buy$246,240.00
May 20, 2014Director4,000$6.69Buy$26,760.00
May 19, 2014Director9,400$6.68Buy$62,792.00
May 16, 2014Director15,000$6.49Buy$97,350.00
May 13, 2014Director5,000$6.74Buy$33,700.00
May 8, 2014Director10,000$6.59Buy$65,900.00
May 7, 2014Director4,400$6.77Buy$29,788.00
May 6, 2014Director17,500$6.89Buy$120,575.00
May 5, 2014Director15,000$6.41Buy$96,150.00
May 5, 2014CEO5,000$6.31Buy$31,550.00
Dec. 17, 2013Director25,000$4.75Buy$118,750.00
Dec. 12, 2013SVP4,000$4.26Buy$17,040.00
Dec. 10, 2013Director18,000$4.38Buy$78,840.00
Dec. 6, 2013Director39,000$4.70Buy$183,300.00
Dec. 4, 2013CEO33,100$4.42Buy$146,302.00
Dec. 3, 2013Director47,500$4.17Buy$198,075.00
Dec. 2, 2013SVP2,000$4.06Buy$8,120.00
Nov. 29, 2013Director3,800$3.92Buy$14,896.00
Nov. 27, 2013Director207,000$3.72Buy$770,040.00
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  • Insiders are both buying and selling Merrimack Pharmaceuticals Inc stock.

  • The insider traders at Merrimack Pharmaceuticals Inc are: Gary L Crocker, Michael E Porter, Noah G Levy, Eric Andersen, Edward J Stewart, Ulrik B Nielsen, William A Sullivan, Edward J. Stewart, Michael Porter, Gary Crocker, Levy Noah G., Robert J Mulroy, Jfl Capital Management, Llc, Birgit M Schoeberl, Jason Aryeh, Vivian S Lee, Lp 22Nw, Anthony Sinskey, Robert Mulroy, William Mcclements, William M Mcclements, Anthony J Sinskey, Daryl C Drummond, Fund Lp 22Nw, Gordon J Fehr, James H Quigley, James Quigley, John Mendelsohn, Sarah Nash, and Ana Radeljevic

  • The most active insider trader at Merrimack Pharmaceuticals Inc is Gary L Crocker with 25 trades.

  • Robert J Mulroy has sold the most Merrimack Pharmaceuticals Inc stock with a total value of $6,409,074.56.

  • Eric Andersen has bought the most Merrimack Pharmaceuticals Inc stock with a total value of $7,701,153.19.

  • The most recent insider trade for Merrimack Pharmaceuticals Inc was on Dec. 28, 2023.

  • The single biggest insider buy for Merrimack Pharmaceuticals Inc was from Eric Andersen with a total value of $1,849,996.80 on March 21, 2023.

  • The single biggest insider sell for Merrimack Pharmaceuticals Inc was from Robert J Mulroy with a total value of $1,968,000.00 on Dec. 8, 2014.