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Sec Filings Insider Trading - Porter Michael E
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"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>>
Insider Trading Transactions for Porter Michael E
Historical filings delayed by 6 months. New user? Sign Up for real time data. Existing user? Sign In

Common stock purchase or sale:
Transaction
Date
Reported
Date
Company Symbol Insider
Relationship
Shares
Traded
Average
Price
Total
Amount
Shares
Owned
Filing
2016-03-17
Purchase
2016-03-21
09:25 am
Merrimack Pharmaceuticals Inc MACK Porter Michael E
Director
5,000 $7.2 $36,000 754,448
(Direct)
View
2016-03-15
Purchase
2016-03-17
10:51 am
Merrimack Pharmaceuticals Inc MACK Porter Michael E
Director
5,000 $7.65 $38,250 749,448
(Direct)
View
2016-03-08
Purchase
2016-03-10
09:28 am
Merrimack Pharmaceuticals Inc MACK Porter Michael E
Director
10,000 $7.09 $70,900 744,448
(Direct)
View
2016-03-02
Purchase
2016-03-04
09:02 am
Merrimack Pharmaceuticals Inc MACK Porter Michael E
Director
15,000 $6.39 $95,850 734,448
(Direct)
View
2016-02-29
Purchase
2016-03-02
11:13 am
Merrimack Pharmaceuticals Inc MACK Porter Michael E
Director
20,000 $6.105 $122,100 719,448
(Direct)
View
2015-08-21
Purchase
2015-08-25
09:13 am
Merrimack Pharmaceuticals Inc MACK Porter Michael E
Director
5,000 $9.76 $48,800 699,448
(Direct)
View
2015-08-13
Purchase
2015-08-17
09:00 am
Merrimack Pharmaceuticals Inc MACK Porter Michael E
Director
13,000 $10.54 $137,040 694,448
(Direct)
View
2015-08-12
Purchase
2015-08-13
08:30 am
Merrimack Pharmaceuticals Inc MACK Porter Michael E
Director
20,000 $10.16 $203,200 681,448
(Direct)
View
2015-05-13
Purchase
2015-05-15
07:53 am
Merrimack Pharmaceuticals Inc MACK Porter Michael E
Director
8,284 $11.79 $97,668 661,448
(Direct)
View

Stock options: Exercise, Award, Grant, Conversion
Transaction
Date
Reported
Date
Exercisable
Expiration
Company Symnbol Insider
Relationship
Shares
Traded
Conversion
Price
Shares
Owned
Filing
2016-06-14
Option Award
2016-06-16
5:11 pm
N/A
2026-06-13
Merrimack Pharmaceuticals Inc MACK Porter Michael E
Director
43,000 $6.22 43,000
(Direct)
View
2015-05-13
Option Award
2015-05-18
07:53 am
N/A
2025-05-12
Merrimack Pharmaceuticals Inc MACK Porter Michael E
Director
14,000 $11.88 14,000
(Direct)
View