WESTLAKE CHEM PARTNERS LP

Ticker: WLKP CUSIP: 960417103 Class: COM UNIT RP LP

NORTHWESTERN MUTUAL INVESTMENT MANAGEMENT COMPANY, LLC's Holding History (CIK: 0001629649)

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

Q2 2015

Shares 118,600 Value ($000) $2,580 Avg Close — Range —

Q1 2015

Shares 100,000 Value ($000) $2,682 Avg Close — Range —

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2015	118,600	$2,580	—	—
Q1 2015	100,000	$2,682	—	—