What does CUSIP 576314108 represent in this 13F holders report?

CUSIP 576314108 is the security identifier for MSTX - MAST THERAPEUTICS INC - COM used to aggregate holder disclosures.

How many institutions held MSTX - MAST THERAPEUTICS INC - COM in Q4 2015?

30 institutional investors reported MSTX - MAST THERAPEUTICS INC - COM for Q4 2015. Use the holders table for investor-level position and value details.

MAST THERAPEUTICS INC - COM (MSTX)

CUSIP: 576314108

Q4 2015 13F Holders as of 31 Dec 2015

Type / Class: Equity / COM
Total 13F shares: 24,088,992
Share change: -8,235,382
Total reported value: $10,125,000
Price per share: $0.42
Number of holders: 30
Value change: -$3,605,391
Number of buys: 9
Number of sells: 14

Quarterly Holders Quick Answers

What is CUSIP 576314108?
CUSIP 576314108 identifies MSTX - MAST THERAPEUTICS INC - COM in SEC institutional holdings data.

Need full ownership history?
Open the full security ownership history page.

Related Filing Research

Latest 13F filings for newly reported positions.
Latest Schedule 13D/13G reports for ownership changes outside 13F cadence.
Latest 10-Q/10-K reports for financial context tied to this issuer.
Recent insider transactions for executive and insider activity.
SEC investors directory and top value investors for manager drilldown.
Back to full security ownership history.

Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q1 2016
Previous quarter: Q3 2015

Recent filing periods for CUSIP 576314108:

Q2 2017 Q1 2017 Q4 2016 Q3 2016 Q2 2016 Q1 2016 Q4 2015 Q3 2015

Institutional Holders of MAST THERAPEUTICS INC - COM (MSTX) as of Q4 2015

As of 31 Dec 2015, MAST THERAPEUTICS INC - COM (MSTX) was held by 30 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 24,088,992 shares. The largest 10 holders included BAKER BROS. ADVISORS LP, VANGUARD GROUP INC, FRANKLIN RESOURCES INC, BVF INC/IL, MPM ASSET MANAGEMENT LLC, ProQuest Associates IV LLC, GEODE CAPITAL MANAGEMENT, LLC, GRT CAPITAL PARTNERS L.L.C., PERKINS CAPITAL MANAGEMENT INC, and Ancora Advisors, LLC. This page lists 30 institutional shareholders reporting positions in this security for the Q4 2015 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

* 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.