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Transactions
Nielsen Ulrik B.
Date
Name
Symbol
Type
Security
Shares
Price
Value
Ownership
Reported
06/06/2023
MERRIMACK PHARMACEUTICALS INC
MACK
Grant
Stock Option (right to buy)
7k
$12.48
$87.4k
06/06/2023
06/06/2022
MERRIMACK PHARMACEUTICALS INC
MACK
Grant
Stock Option (right to buy)
7k
$5.20
$36.4k
06/06/2022
01/24/2022
MERRIMACK PHARMACEUTICALS INC
MACK
Purchase
Common Stock
14.3k
$4.24
$60.6k
See footnote
01/24/2022
06/10/2021
MERRIMACK PHARMACEUTICALS INC
MACK
Grant
Stock Option (right to buy)
7k
$6.41
$44.9k
06/10/2021
07/30/2020
MERRIMACK PHARMACEUTICALS INC
MACK
Grant
Stock Option (right to buy)
7k
$3.37
$23.6k
07/30/2020
10/17/2019
MERRIMACK PHARMACEUTICALS INC
MACK
Grant
Stock Option (right to buy)
7k
$4.18
$29.3k
10/17/2019
06/13/2018
MERRIMACK PHARMACEUTICALS INC
MACK
Grant
Stock Option (right to buy)
7k
$9.67
$67.7k
06/13/2018
06/14/2016
MERRIMACK PHARMACEUTICALS INC
MACK
Grant
Stock Option (right to buy)
43k
$6.22
$267.5k
06/14/2016
07/20/2015
MERRIMACK PHARMACEUTICALS INC
MACK
Sale
Common Stock
20k
$10.71
$214.2k
07/20/2015
07/20/2015
MERRIMACK PHARMACEUTICALS INC
MACK
Exercise
Stock Option (right to buy)
20k
$2.59
$51.8k
07/20/2015
06/19/2015
MERRIMACK PHARMACEUTICALS INC
MACK
Exercise
Stock Option (right to buy)
30k
$2.59
$77.7k
06/19/2015
06/19/2015
MERRIMACK PHARMACEUTICALS INC
MACK
Exercise
Stock Option (right to buy)
10k
$2.47
$24.7k
06/19/2015
06/19/2015
MERRIMACK PHARMACEUTICALS INC
MACK
Sale
Common Stock
40k
$12.02
$480.8k
06/19/2015
05/19/2015
MERRIMACK PHARMACEUTICALS INC
MACK
Exercise
Stock Option (right to buy)
16.8k
$2.47
$41.6k
05/19/2015
05/19/2015
MERRIMACK PHARMACEUTICALS INC
MACK
Exercise
Stock Option (right to buy)
23.2k
$2.47
$57.2k
05/19/2015
05/19/2015
MERRIMACK PHARMACEUTICALS INC
MACK
Sale
Common Stock
40k
$13.04
$521.6k
05/19/2015
05/13/2015
MERRIMACK PHARMACEUTICALS INC
MACK
Grant
Stock Option (right to buy)
18k
$11.88
$213.3k
05/13/2015
04/20/2015
MERRIMACK PHARMACEUTICALS INC
MACK
Exercise
Stock Option (right to buy)
25k
$1.81
$45.2k
04/20/2015
04/20/2015
MERRIMACK PHARMACEUTICALS INC
MACK
Exercise
Stock Option (right to buy)
15k
$1.71
$25.6k
04/20/2015
04/20/2015
MERRIMACK PHARMACEUTICALS INC
MACK
Sale
Common Stock
40k
$12.88
$515.2k
04/20/2015
04/20/2015
MERRIMACK PHARMACEUTICALS INC
MACK
Exercise
Stock Option (right to buy)
25k
$0.00
$0
04/20/2015
04/20/2015
MERRIMACK PHARMACEUTICALS INC
MACK
Exercise
Common Stock
25k
$2.47
$61.8k
04/20/2015
03/19/2015
MERRIMACK PHARMACEUTICALS INC
MACK
Sale
Common Stock
40k
$11.97
$478.8k
03/19/2015
03/19/2015
MERRIMACK PHARMACEUTICALS INC
MACK
Exercise
Stock Option (right to buy)
40k
$1.71
$68.4k
03/19/2015
03/04/2015
MERRIMACK PHARMACEUTICALS INC
MACK
Sale
Common Stock
20k
$12.01
$240.2k
03/04/2015
03/04/2015
MERRIMACK PHARMACEUTICALS INC
MACK
Exercise
Stock Option (right to buy)
20k
$1.71
$34.2k
03/04/2015
02/23/2015
MERRIMACK PHARMACEUTICALS INC
MACK
Sale
Common Stock
20k
$10.91
$218.2k
02/23/2015
02/23/2015
MERRIMACK PHARMACEUTICALS INC
MACK
Exercise
Stock Option (right to buy)
8k
$1.71
$13.6k
02/23/2015
02/23/2015
MERRIMACK PHARMACEUTICALS INC
MACK
Exercise
Stock Option (right to buy)
12k
$1.71
$20.6k
02/23/2015
08/26/2014
MERRIMACK PHARMACEUTICALS INC
MACK
Exercise
Stock Option (right to buy)
50k
$1.25
$62.5k
08/26/2014
05/27/2014
MERRIMACK PHARMACEUTICALS INC
MACK
Sale
Common Stock
105k
$8.01
$841k
05/27/2014
05/27/2014
MERRIMACK PHARMACEUTICALS INC
MACK
Exercise
Stock Option (right to buy)
100k
$1.25
$125k
05/27/2014
05/27/2014
MERRIMACK PHARMACEUTICALS INC
MACK
Exercise
Stock Option (right to buy)
5k
$1.71
$8.6k
05/27/2014
02/11/2014
MERRIMACK PHARMACEUTICALS INC
MACK
Grant
Stock Option (right to buy)
250k
$5.02
$1.3M
02/11/2014
04/24/2013
MERRIMACK PHARMACEUTICALS INC
MACK
Sale
Common Stock
10.5k
$5.40
$56.6k
04/24/2013
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