MARKWEST ENERGY PARTNERS L P

CUSIP: 570759100 Class: UNIT LP PARTN

Sigma Planning Corp's Holding History (CIK: 0001449126)

Note: Option positions (PUT/CALL) are excluded.

Q1 2015
Shares 3,314 Value ($000) $219 Avg Close — Range —
Q4 2014
Shares 3,614 Value ($000) $243 Avg Close — Range —