Merrimack Pharmaceuticals
Insider trading & Transactions

Last updated:

Transaction Date Insider Security Shares Price per share Total value Source
Purchase
PORTER MICHAEL E director
 Common Stock 20,000 $6.27 $125,300
Option
CROCKER GARY L director, officer: See Remarks
 Common Stock 50,000 $1.25 $62,500
Option
CROCKER GARY L director, officer: See Remarks
 Stock Option (right to buy) 50,000 $1.25 $62,500
Option
SULLIVAN WILLIAM A. officer: Principal Accounting O..
 Stock Option (right to buy) 11,000 $1.81 $19,910
Option
SULLIVAN WILLIAM A. officer: Principal Accounting O..
 Common Stock 11,000 $1.81 $19,910
Purchase
PORTER MICHAEL E director
 Common Stock 12,500 $4.8 $59,938
Purchase
PORTER MICHAEL E director
 Common Stock 12,500 $4.8 $59,938
Purchase
MCCLEMENTS WILLIAM M. officer: Head of Corporate Oper..
 Common Stock 2,500 $4.39 $10,980
Purchase
MCCLEMENTS WILLIAM M. officer: Head of Corporate Oper..
 Common Stock 1,500 $4.05 $6,078
Purchase
PORTER MICHAEL E director
 Common Stock 18,000 $4.38 $78,840
Purchase
QUIGLEY JAMES H. director
 Common Stock 39,000 $4.7 $183,261
Purchase
MULROY ROBERT J. director, officer: President an..
 Common Stock 33,100 N/A N/A
Purchase
NASH SARAH E director
 Common Stock 500 $4.35 $2,175
Purchase
PORTER MICHAEL E director
 Common Stock 5,000 $4.25 $21,255
Purchase
MCCLEMENTS WILLIAM M. officer: Head of Corporate Oper..
 Common Stock 2,000 $4.06 $8,120
Purchase
PORTER MICHAEL E director
 Common Stock 70,000 $4.17 $291,690
Purchase
NASH SARAH E director
 Common Stock 47,000 $4.17 $196,131
Purchase
PORTER MICHAEL E director
 Common Stock 25,000 $3.79 $94,825
Purchase
MCCLEMENTS WILLIAM M. officer: Head of Corporate Oper..
 Common Stock 1,000 $3.92 $3,915
Purchase
SINSKEY ANTHONY J director
 Common Stock 3,800 $3.92 $14,877
Purchase
MCCLEMENTS WILLIAM M. officer: Head of Corporate Oper..
 Common Stock 6,000 $3.56 $21,342
Purchase
CROCKER GARY L director, officer: See Remarks
 Common Stock 207,000 $3.74 $773,973
Purchase
PORTER MICHAEL E director
 Common Stock 50,000 $3.51 $175,350
Option
MULROY ROBERT J. director, officer: President an..
 Common Stock 50,000 $2.19 $109,500
Option
MULROY ROBERT J. director, officer: President an..
 Stock Option (right to buy) 50,000 $2.19 $109,500
Option
STEWART EDWARD J. officer: Head of Commercial
 Stock Option (right to buy) 5,000 $2.19 $10,950
Option
STEWART EDWARD J. officer: Head of Commercial
 Common Stock 5,000 $2.19 $10,950
Option
DRESSER JAMES VAN B. director
 Stock Option (right to buy) 15,000 $2.19 $32,850
Option
DRESSER JAMES VAN B. director
 Common Stock 15,000 $2.19 $32,850
Option
NIELSEN ULRIK B. director
 Common Stock 10,483 $2.19 $22,958
Option
SINSKEY ANTHONY J director
 Stock Option (right to buy) 15,000 $2.19 $32,850
Option
SINSKEY ANTHONY J director
 Common Stock 15,000 $2.19 $32,850
Sale
NIELSEN ULRIK B. director
 Common Stock 10,483 $2.19 $22,958
Option
NIELSEN ULRIK B. director
 Stock Option (right to buy) 10,483 $2.19 $22,958
Sale
FEHR GORDON J. director
 Common Stock 15,000 $2.19 $32,850
Option
FEHR GORDON J. director
 Common Stock 15,000 $2.19 $32,850
Option
FEHR GORDON J. director
 Stock Option (right to buy) 15,000 $2.19 $32,850
Option
NIYIKIZA CLET M. officer: EVP of Development
 Common Stock 41,507 $2.12 $87,995
Option
NIYIKIZA CLET M. officer: EVP of Development
 Stock Option (right to buy) 41,507 $2.12 $87,995
Option
NIYIKIZA CLET M. officer: EVP of Development
 Common Stock 100,000 $2.12 $212,000
Sale
KHAN FAZAL R. officer: SVP of Manufacturing
 Common Stock 25,000 $1.71 $42,750
Option
PORTER MICHAEL E director
 Stock Option (right to buy) 15,000 $2.19 $32,850
Option
PORTER MICHAEL E director
 Common Stock 15,000 $2.19 $32,850
Option
KHAN FAZAL R. officer: SVP of Manufacturing
 Common Stock 25,000 $1.71 $42,750
Option
KHAN FAZAL R. officer: SVP of Manufacturing
 Stock Option (right to buy) 25,000 $1.71 $42,750
Purchase
MENDELSOHN JOHN director
 Common Stock 5,000 N/A N/A
Option
KHAN FAZAL R. officer: SVP of Manufacturing
 Stock Option (right to buy) 25,000 $1.71 $42,750
Option
KHAN FAZAL R. officer: SVP of Manufacturing
 Common Stock 25,000 $1.71 $42,750
Sale
KHAN FAZAL R. officer: SVP of Manufacturing
 Common Stock 25,000 $1.71 $42,750
Purchase
CROCKER GARY L director, officer: See Remarks
 Common Stock 36,500 N/A N/A

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Insider trading

Monitoring trades made by the management members or major shareholders of companies may help create a sharper picture of what is happening inside the companies. Base your decisions on buys or sells of the people involved and do the right thing at the right time.

Who is insider?

Every director or senior officer, as well as any other entity or individual owning more than 10% of the company’s shares on the stock market, is called an insider. Such people or entities are allowed to buy/sell the company's shares under strictly controlled conditions. Key premise here is that none of them can make trades based on non-public information about the company.

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