WILLIAMS PARTNERS L P

CUSIP: 96950F104 Class: COM UNIT L P

GSA CAPITAL PARTNERS LLP's Holding History (CIK: 0001362033)

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

Q4 2014
Shares 11,340 Value ($000) $507 Avg Close — Range —
Q2 2014
Shares 32,186 Value ($000) $1,747 Avg Close — Range —
Q1 2014
Shares 7,701 Value ($000) $392 Avg Close — Range —
Q4 2013
Shares 20,452 Value ($000) $1,040 Avg Close — Range —