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
Aug. 13, 2020Director608$3.50Buy$2,128.00
Aug. 11, 2020Director14,030$3.45Buy$48,403.50
July 22, 2020Insider117,963$3.08Sell$363,326.04
July 22, 2020Director177,274$3.11Buy$551,322.14
April 20, 2020Director2,325$3.25Buy$7,556.25
April 6, 2020Director6,042$3.00Buy$18,126.00
April 6, 2020Insider16,793$3.46Buy$58,103.78
April 3, 2020Director10,750$2.59Buy$27,842.50
July 16, 2019Insider302$5.44Buy$1,642.88
July 11, 2019Insider100$5.71Buy$571.00
July 2, 2019Insider50,288$5.92Buy$297,704.96
June 28, 2019Insider23,564$5.95Buy$140,205.80
April 17, 2019Insider66,760$5.86Buy$391,213.60
April 15, 2019Insider30,110$5.73Buy$172,530.30
April 8, 2019Insider37,278$5.89Buy$219,567.42
April 5, 2019Insider50,000$6.12Buy$306,000.00
Sept. 15, 2017Director7,896$14.23Sell$112,360.08
Sept. 14, 2017Director100$14.20Sell$1,420.00
Sept. 13, 2017Director21,556$14.40Sell$310,406.40
Sept. 11, 2017Director14,756$14.46Sell$213,371.76
May 12, 2017Insider4,097$3.72Sell$15,240.84
July 25, 2016Insider50,000$5.50Sell$275,000.00
March 17, 2016Director5,000$7.20Buy$36,000.00
March 15, 2016Director5,000$7.65Buy$38,250.00
March 8, 2016Director10,000$7.09Buy$70,900.00
March 3, 2016Director15,000$6.39Buy$95,850.00
March 1, 2016Director20,000$6.11Buy$122,200.00
Feb. 29, 2016Insider2,000$5.72Buy$11,440.00
Feb. 29, 2016Director35,000$5.50Buy$192,500.00
Jan. 5, 2016insider4,000$8.00Sell$32,000.00
Dec. 1, 2015insider5,000$9.33Sell$46,650.00
Nov. 2, 2015insider6,000$9.42Sell$56,520.00
Oct. 16, 2015insider1,000$10.00Sell$10,000.00
Oct. 2, 2015insider5,000$8.20Sell$41,000.00
Sept. 1, 2015insider6,000$9.88Sell$59,280.00
Aug. 21, 2015Director5,000$9.76Buy$48,800.00
Aug. 17, 2015insider6,000$10.49Sell$62,940.00
Aug. 14, 2015Director13,000$10.54Buy$137,020.00
July 20, 2015Director20,000$10.71Sell$214,200.00
July 15, 2015CFO15,000$11.85Sell$177,750.00
July 15, 2015Insider6,000$11.84Sell$71,040.00
June 19, 2015Director40,000$12.02Sell$480,800.00
June 18, 2015Insider2,000$12.00Sell$24,000.00
June 15, 2015CFO15,000$10.65Sell$159,750.00
June 15, 2015Insider6,000$10.67Sell$64,020.00
May 19, 2015Director40,000$13.04Sell$521,600.00
May 13, 2015Director8,284$11.79Buy$97,668.36
April 20, 2015Director40,000$12.88Sell$515,200.00
April 15, 2015CFO15,000$12.87Sell$193,050.00
April 15, 2015SVP8,000$12.79Sell$102,320.00
  • 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.