Mast Capital Management, LLC

Q1 2015 13F Holdings Report, Stock Holdings

Notable people: David J. Steinberg
Signature - Title: Adam M. Kleinman - Chief Operating Officer and Partner
Location: Boston
Holdings as of: March 31, 2015
Value $: $89.8M
Num holdings: 6
Date filed: 5/15/2015, 02:01 PM
Form type: 13F-HR
Description: All US holdings of this investor are reported in this report. Top holdings included GCA, GNCMA, MLNK, HELI, and IWM.
Previous filing: Q4 2014 - Feb 17, 2015
Next filing: Q2 2015 - Aug 14, 2015
SEC: View on sec.gov
Options Holdings: Showing stock holdings, see here for options holdings

Sym	Weight	Trade Impact	Company	Class	Shares Change	Activity	Value Change $	Value $	* Price $	Shares	Principal

Filing 2015 Q1 compared to 2014 Q4 by default.

Compare Q1 2015 to

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.

Person Signing this Report on Behalf of Reporting Manager:

Name	Title	City, State	Date
Adam M. Kleinman	Chief Operating Officer and Partner	Boston, Massachusetts	5/15/2015

Other Included Managers (1):

Num	Name	Location	File Number
1	Altegris Advisors, L.L.C.	La Jolla, CA