WESTERN GAS EQUITY PARTNERS

CUSIP: 95825R103 Class: CMN

MASSACHUSETTS FINANCIAL SERVICES CO /MA/'s Holding History (CIK: 0000912938)

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

Q4 2018
Shares 1,755,152 Value ($000) $48,670 Avg Close — Range —
Q3 2018
Shares 2,275,473 Value ($000) $68,128 Avg Close — Range —
Q2 2018
Shares 2,285,547 Value ($000) $81,708 Avg Close — Range —
Q1 2018
Shares 1,083,101 Value ($000) $35,872 Avg Close — Range —
Q4 2017
Shares 1,095,631 Value ($000) $40,714 Avg Close — Range —
Q3 2017
Shares 1,104,981 Value ($000) $45,503 Avg Close — Range —
Q2 2017
Shares 1,133,996 Value ($000) $48,785 Avg Close — Range —
Q1 2017
Shares 1,207,877 Value ($000) $55,683 Avg Close — Range —
Q4 2016
Shares 1,217,743 Value ($000) $51,571 Avg Close — Range —
Q3 2016
Shares 923,365 Value ($000) $39,234 Avg Close — Range —
Q2 2016
Shares 923,365 Value ($000) $35,319 Avg Close — Range —
Q1 2016
Shares 939,588 Value ($000) $33,487 Avg Close — Range —
Q4 2015
Shares 1,011,153 Value ($000) $36,695 Avg Close — Range —
Q3 2015
Shares 1,071,846 Value ($000) $42,263 Avg Close — Range —
Q2 2015
Shares 1,067,616 Value ($000) $64,056,960 Avg Close — Range —
Q1 2015
Shares 849,504 Value ($000) $50,970,240 Avg Close — Range —
Q4 2014
Shares 969,937 Value ($000) $58,419,306 Avg Close — Range —
Q3 2014
Shares 935,423 Value ($000) $57,005 Avg Close — Range —
Q2 2014
Shares 676,651 Value ($000) $42,426 Avg Close — Range —
Q1 2014
Shares 676,651 Value ($000) $33,230,331 Avg Close — Range —
Q4 2013
Shares 67,450 Value ($000) $2,664,950 Avg Close — Range —