MARKWEST ENERGY PARTNERS L P

CUSIP: 570759100 Class: UNIT LP PARTN

HighVista Strategies LLC's Holding History (CIK: 0001335325)

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

Q3 2015
Shares 124,227 Value ($000) $5,331 Avg Close — Range —
Q2 2015
Shares 113,439 Value ($000) $6,396 Avg Close — Range —
Q1 2015
Shares 112,206 Value ($000) $7,417 Avg Close — Range —
Q4 2014
Shares 105,682 Value ($000) $7,101 Avg Close — Range —
Q3 2014
Shares 105,444 Value ($000) $8,100 Avg Close — Range —
Q2 2014
Shares 125,677 Value ($000) $8,996 Avg Close — Range —
Q4 2013
Shares 11,056 Value ($000) $731 Avg Close — Range —