Real time insider trading transaction history:

  • Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
Time period:
Insider Trading Transactions for MERRIMACK PHARMACEUTICALS INC
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Common stock purchase or sale:
Transaction
Date
Reported
DateTime
Company Symbol Insider
Relationship
Shares
Traded
Average
Price
Total
Amount
Shares
Owned
Filing
2022-04-21
Purchase
2022-04-25
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK CROCKER GARY L
See Remarks
5,000 $6.0002 $30,001 115,338
(Indirect)
View
2022-03-30
Purchase
2022-04-01
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK CROCKER GARY L
See Remarks
461 $6.1848 $2,851 110,338
(Indirect)
View
2022-03-28
Purchase
2022-03-29
5:30 pm
MERRIMACK PHARMACEUTICALS INC MACK CROCKER GARY L
See Remarks
5,000 $6.1643 $30,822 109,877
(Indirect)
View
2022-03-22
Purchase
2022-03-24
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK CROCKER GARY L
See Remarks
400 $6.1138 $2,446 104,877
(Indirect)
View
2022-03-15
Purchase
2022-03-17
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK CROCKER GARY L
See Remarks
4,649 $6.1423 $28,556 104,477
(Indirect)
View
2022-03-11
Purchase
2022-03-15
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK CROCKER GARY L
See Remarks
10,000 $6.0527 $60,527 99,828
(Indirect)
View
2022-02-18
Purchase
2022-02-23
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK CROCKER GARY L
See Remarks
3,351 $5.9593 $19,970 89,828
(Indirect)
View
2022-02-16
Purchase
2022-02-18
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK CROCKER GARY L
See Remarks
12,945 $6.169 $79,857 86,477
(Indirect)
View
2022-02-14
Purchase
2022-02-16
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK CROCKER GARY L
See Remarks
1,923 $5.9731 $11,486 73,532
(Indirect)
View
2022-01-28
Purchase
2022-02-01
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK Levy Noah G.
Newtyn Management LLC
NEWTYN PARTNERS LP
NEWTYN TE PARTNERS LP
Newtyn Capital Partners LP
Ledo Capital LLC
See remarks
14,200 $4.5267 $64,279 724,275
(Indirect)
View
2022-01-27
Purchase
2022-01-31
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK CROCKER GARY L
See Remarks
673 $4.6 $3,096 71,609
(Indirect)
View
2022-01-26
Purchase
2022-01-28
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK Levy Noah G.
Newtyn Management LLC
NEWTYN PARTNERS LP
NEWTYN TE PARTNERS LP
Newtyn Capital Partners LP
Ledo Capital LLC
See remarks
35,800 $4.9234 $176,259 712,294
(Indirect)
View
2022-01-26
Purchase
2022-01-27
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK CROCKER GARY L
See Remarks
3,100 $4.5552 $14,121 70,936
(Indirect)
View
2022-01-24
Purchase
2022-01-25
4:13 pm
MERRIMACK PHARMACEUTICALS INC MACK Nielsen Ulrik B.
Director
14,287 $4.2437 $60,630 36,968
(Indirect)
View
2022-01-21
Purchase
2022-01-25
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK CROCKER GARY L
See Remarks
9,105 $4.3988 $40,051 67,836
(Indirect)
View
2022-01-18
Purchase
2022-01-20
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK CROCKER GARY L
See Remarks
5,000 $4.5379 $22,689 58,731
(Indirect)
View
2022-01-13
Purchase
2022-01-18
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK CROCKER GARY L
See Remarks
10,000 $4.4674 $44,674 53,731
(Indirect)
View
2022-01-11
Purchase
2022-01-13
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK CROCKER GARY L
See Remarks
10,000 $4.1799 $41,799 43,731
(Indirect)
View
2022-01-10
Purchase
2022-01-12
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK Levy Noah G.
Newtyn Management LLC
NEWTYN PARTNERS LP
NEWTYN TE PARTNERS LP
Newtyn Capital Partners LP
Ledo Capital LLC
See remarks
105,949 $3.9754 $421,192 676,494
(Indirect)
View
2022-01-07
Purchase
2022-01-10
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK Levy Noah G.
Newtyn Management LLC
NEWTYN PARTNERS LP
NEWTYN TE PARTNERS LP
Newtyn Capital Partners LP
Ledo Capital LLC
See remarks
8,780 $3.8182 $33,524 655,806
(Indirect)
View
2021-12-31
Sale
2022-01-04
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK RAY RUSSELL T
Director
1,000 $3.8398 $3,840 0
(Direct)
View
2021-04-14
Purchase(A)
2021-09-20
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK Andersen Eric
Western Standard LLC
WESTERN STANDARD PARTNERS LP
Western Standard Partners QP L.P.
See remarks
100,214 $6.5046 $651,857 269,338
(Indirect)
View
2021-04-14
Sale(A)
2021-09-20
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK Andersen Eric
Western Standard LLC
WESTERN STANDARD PARTNERS LP
Western Standard Partners QP L.P.
See remarks
52,914 $6.39 $338,120 269,338
(Indirect)
View
2021-04-14
Purchase
2021-04-16
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK Andersen Eric
Western Standard LLC
WESTERN STANDARD PARTNERS LP
Western Standard Partners QP L.P.
See remarks
47,300 $6.6329 $313,736 322,252
(Indirect)
View
2021-04-13
Purchase
2021-04-15
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK Andersen Eric
Western Standard LLC
WESTERN STANDARD PARTNERS LP
Western Standard Partners QP L.P.
See remarks
9,874 $6.2568 $61,780 1,222,348
(Indirect)
View
2021-04-12
Purchase
2021-04-14
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK Andersen Eric
Western Standard LLC
WESTERN STANDARD PARTNERS LP
Western Standard Partners QP L.P.
See remarks
23,629 $6.0601 $143,194 1,212,474
(Indirect)
View
2021-04-12
Purchase
2021-04-14
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK CROCKER GARY L
See Remarks
973 $6.069 $5,905 33,731
(Indirect)
View
2021-04-09
Purchase
2021-04-12
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK CROCKER GARY L
See Remarks
1,200 $6.1 $7,320 32,758
(Indirect)
View
2021-04-07
Purchase
2021-04-09
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK CROCKER GARY L
See Remarks
2,127 $6.19 $13,166 31,558
(Indirect)
View
2021-03-31
Purchase
2021-04-01
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK CROCKER GARY L
See Remarks
500 $6.189 $3,095 29,431
(Indirect)
View
2021-03-25
Purchase
2021-03-26
5:46 pm
MERRIMACK PHARMACEUTICALS INC MACK CROCKER GARY L
See Remarks
200 $6.13 $1,226 28,931
(Indirect)
View
2021-03-23
Purchase
2021-03-25
5:50 pm
MERRIMACK PHARMACEUTICALS INC MACK CROCKER GARY L
See Remarks
8,627 $6.3921 $55,145 28,731
(Indirect)
View
2021-03-16
Purchase
2021-03-17
5:08 pm
MERRIMACK PHARMACEUTICALS INC MACK CROCKER GARY L
See Remarks
5,000 $6.7912 $33,956 20,104
(Indirect)
View
2021-02-23
Purchase
2021-03-05
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK CROCKER GARY L
See Remarks
5,000 $7.2009 $36,005 15,104
(Indirect)
View
2021-02-12
Purchase
2021-02-17
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK CROCKER GARY L
See Remarks
5,000 $7.4684 $37,342 10,104
(Indirect)
View
2021-02-10
Purchase
2021-02-12
6:16 pm
MERRIMACK PHARMACEUTICALS INC MACK CROCKER GARY L
See Remarks
5,104 $7.7497 $39,554 5,104
(Indirect)
View
2020-12-01
Purchase
2020-12-03
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK Levy Noah G.
Newtyn Management LLC
NEWTYN PARTNERS LP
NEWTYN TE PARTNERS LP
Newtyn Capital Partners LP
Ledo Capital LLC
See remarks
29,776 $3.9991 $119,077 652,241
(Indirect)
View
2020-11-24
Purchase
2020-11-27
4:05 pm
MERRIMACK PHARMACEUTICALS INC MACK Levy Noah G.
Newtyn Management LLC
NEWTYN PARTNERS LP
NEWTYN TE PARTNERS LP
Newtyn Capital Partners LP
Ledo Capital LLC
See remarks
69,087 $3.65 $252,168 639,824
(Indirect)
View

Stock options: Exercise, Award, Grant, Conversion
Transaction
Date
Reported
DateTime
Exercisable
Expiration
Company Symnbol Insider
Relationship
Shares
Traded
Conversion
Price
Shares
Owned
Filing
2021-06-10
Option Award
2021-06-14
4:05 pm
N/A
2031-06-09
MERRIMACK PHARMACEUTICALS INC MACK Nielsen Ulrik B.
Director
7,000 $0 7,000
(Direct)
View
2021-06-10
Option Award
2021-06-14
4:05 pm
N/A
2031-06-09
MERRIMACK PHARMACEUTICALS INC MACK CROCKER GARY L
See Remarks
8,000 $0 8,000
(Direct)
View
2021-06-10
Option Award
2021-06-14
4:05 pm
N/A
2031-06-09
MERRIMACK PHARMACEUTICALS INC MACK RAY RUSSELL T
Director
7,000 $0 7,000
(Direct)
View
(A) Indicate amendment filing.
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