ENVISION HEALTHCARE HLDGS IN

CUSIP: 29413U103 Class: COM

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q3 2016
Shares 700,000 Value ($000) $15,589 Avg Close — Range —
Q2 2016
Shares 17,546 Value ($000) $445 Avg Close — Range —
Q1 2016
Shares 991,603 Value ($000) $20,229 Avg Close — Range —
Q4 2015
Shares 368,944 Value ($000) $9,581 Avg Close — Range —
Q1 2015
Shares 836,400 Value ($000) $32,076 Avg Close — Range —
Q4 2014
Shares 11,473 Value ($000) $398 Avg Close — Range —
Q3 2014
Shares 1,338,643 Value ($000) $46,424 Avg Close — Range —
Q1 2014
Shares 196,164 Value ($000) $6,636 Avg Close — Range —