Porter Michael E Insider Trades

Insider Trading History

Track insider trading activity for Porter Michael E. See latest buy and sell transactions across all companies.

Holdings

Company
Holding Value
Last Transaction
Sale/Purchase
Amount
Price
Current Price

Insider Trades History

Company
Holding Value
Last Transaction
Sale/Purchase
Amount
Price
Current Price
Merrimack Pharmaceuticals
Merrimack Pharmaceuticals MACK
Director
Holding Value $114k 7,500 shares
Last Trade
Sep 13, 2017 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$93.3k 7,500 shares
$12.44
$15.14
Merrimack Pharmaceuticals
Merrimack Pharmaceuticals MACK
Director
Holding Value $0 0 shares
Last Trade
Mar 10, 2017 Sale (Option Exercise)Shares acquired or sold by exercising stock options or converting another derivative security.
$700k 25,000 shares
$28.01
$15.14
Merrimack Pharmaceuticals
Merrimack Pharmaceuticals MACK
Director
Holding Value $12.7M 839,448 shares
Last Trade
Mar 10, 2017 Purchase (Option Exercise)Shares acquired or sold by exercising stock options or converting another derivative security.
$2.38M 85,000 shares
$28.01
$15.14
Merrimack Pharmaceuticals
Merrimack Pharmaceuticals MACK
Director
Holding Value $651k 43,000 shares
Last Trade
Jun 14, 2016 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$2.38M 43,000 shares
$55.31
$15.14
Merrimack Pharmaceuticals
Merrimack Pharmaceuticals MACK
Director
Holding Value $11.4M 754,448 shares
Last Trade
Mar 17, 2016 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$344k 5,000 shares
$68.83
$15.14
Merrimack Pharmaceuticals
Merrimack Pharmaceuticals MACK
Director
Holding Value $11.4M 749,448 shares
Last Trade
Mar 15, 2016 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$321k 5,000 shares
$64.29
$15.14
Merrimack Pharmaceuticals
Merrimack Pharmaceuticals MACK
Director
Holding Value $11.3M 744,448 shares
Last Trade
Mar 08, 2016 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$627k 10,000 shares
$62.69
$15.14
Merrimack Pharmaceuticals
Merrimack Pharmaceuticals MACK
Director
Holding Value $11.1M 734,448 shares
Last Trade
Mar 03, 2016 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$591k 10,000 shares
$59.13
$15.14
Merrimack Pharmaceuticals
Merrimack Pharmaceuticals MACK
Director
Holding Value $11M 724,448 shares
Last Trade
Mar 02, 2016 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$303k 5,000 shares
$60.64
$15.14
Merrimack Pharmaceuticals
Merrimack Pharmaceuticals MACK
Director
Holding Value $10.9M 719,448 shares
Last Trade
Mar 01, 2016 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$580k 10,000 shares
$57.98
$15.14
Merrimack Pharmaceuticals
Merrimack Pharmaceuticals MACK
Director
Holding Value $10.7M 709,448 shares
Last Trade
Feb 29, 2016 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$515k 10,000 shares
$51.49
$15.14
Merrimack Pharmaceuticals
Merrimack Pharmaceuticals MACK
Director
Holding Value $10.6M 699,448 shares
Last Trade
Aug 21, 2015 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$427k 5,000 shares
$85.36
$15.14
Merrimack Pharmaceuticals
Merrimack Pharmaceuticals MACK
Director
Holding Value $10.5M 694,448 shares
Last Trade
Aug 14, 2015 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$282k 3,000 shares
$93.90
$15.14
Merrimack Pharmaceuticals
Merrimack Pharmaceuticals MACK
Director
Holding Value $10.5M 691,448 shares
Last Trade
Aug 13, 2015 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$931k 10,000 shares
$93.10
$15.14
Merrimack Pharmaceuticals
Merrimack Pharmaceuticals MACK
Director
Holding Value $10.3M 681,448 shares
Last Trade
Aug 12, 2015 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$1.87M 20,000 shares
$93.37
$15.14
Merrimack Pharmaceuticals
Merrimack Pharmaceuticals MACK
Director
Holding Value $212k 14,000 shares
Last Trade
May 13, 2015 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$1.48M 14,000 shares
$105.64
$15.14
Merrimack Pharmaceuticals
Merrimack Pharmaceuticals MACK
Director
Holding Value $10M 661,448 shares
Last Trade
May 13, 2015 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$875k 8,284 shares
$105.64
$15.14
Merrimack Pharmaceuticals
Merrimack Pharmaceuticals MACK
Director
Holding Value $9.89M 653,164 shares
Last Trade
Mar 24, 2015 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$513k 5,000 shares
$102.62
$15.14
Merrimack Pharmaceuticals
Merrimack Pharmaceuticals MACK
Director
Holding Value $9.82M 648,164 shares
Last Trade
Mar 20, 2015 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$523k 5,000 shares
$104.57
$15.14
Merrimack Pharmaceuticals
Merrimack Pharmaceuticals MACK
Director
Holding Value $9.76M 644,354 shares
Last Trade
Mar 17, 2015 Purchase (Open Market)Shares bought on the open market or in a private purchase outside of a company compensation plan.
$127k 1,190 shares
$106.97
$15.14

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