Gary L. Crocker - Jun 10, 2021 Form 4 Insider Report for MERRIMACK PHARMACEUTICALS INC (MACK)

Role
Chairman, President, and Treasurer, Director
Signature
/s/ Gary L. Crocker
Stock symbol
MACK
Transactions as of
Jun 10, 2021
Transactions value $
$0
Form type
4
Date filed
6/14/2021, 04:05 PM
Next filing
Jan 13, 2022

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction MACK Stock Option (right to buy) Award $0 +8K $0.00 8K Jun 10, 2021 Common Stock 8K $6.41 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 This option vests as to 1/4th of the total number of shares on 7/1/21 and an additional 1/4th of the total number of shares at the end of each successive three month period thereafter until 4/1/22.

Remarks:

Chairman, President, and Treasurer