SOUTHWESTERN ENERGY CO

CUSIP: 845467109 Class: Common Stock

Boston Partners's Holding History (CIK: 0001386060)

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

Q4 2013
Shares 1,159,488 Value ($000) $45,603 Avg Close — Range —
Q3 2013
Shares 822,774 Value ($000) $29,932 Avg Close — Range —
Q2 2013
Shares 1,264,114 Value ($000) $46,178 Avg Close — Range —