WESTERN GAS PARTNERS LP

CUSIP: 958254104 Class: COM

FIRST MANHATTAN CO. LLC.'s Holding History (CIK: 0000728083)

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

Q4 2018
Shares 3,800 Value ($000) $160 Avg Close — Range —
Q3 2018
Shares 3,800 Value ($000) $165 Avg Close — Range —
Q2 2018
Shares 3,800 Value ($000) $183 Avg Close — Range —
Q1 2018
Shares 3,800 Value ($000) $162 Avg Close — Range —
Q4 2017
Shares 3,800 Value ($000) $182 Avg Close — Range —
Q3 2017
Shares 3,800 Value ($000) $194 Avg Close — Range —
Q2 2017
Shares 3,800 Value ($000) $212 Avg Close — Range —
Q1 2017
Shares 3,800 Value ($000) $229 Avg Close — Range —
Q4 2016
Shares 3,800 Value ($000) $223 Avg Close — Range —
Q3 2016
Shares 3,800 Value ($000) $209 Avg Close — Range —
Q2 2016
Shares 3,800 Value ($000) $191 Avg Close — Range —
Q1 2016
Shares 3,800 Value ($000) $164 Avg Close — Range —
Q4 2015
Shares 3,800 Value ($000) $180 Avg Close — Range —
Q3 2015
Shares 3,800 Value ($000) $177 Avg Close — Range —
Q2 2015
Shares 3,800 Value ($000) $240 Avg Close — Range —
Q1 2015
Shares 3,800 Value ($000) $250 Avg Close — Range —
Q4 2014
Shares 6,800 Value ($000) $496 Avg Close — Range —
Q3 2014
Shares 6,800 Value ($000) $510 Avg Close — Range —
Q2 2014
Shares 6,800 Value ($000) $520 Avg Close — Range —
Q1 2014
Shares 6,800 Value ($000) $450 Avg Close — Range —
Q4 2013
Shares 6,800 Value ($000) $419 Avg Close — Range —
Q3 2013
Shares 6,800 Value ($000) $408 Avg Close — Range —
Q2 2013
Shares 6,800 Value ($000) $413 Avg Close — Range —