AVALANCHE BIOTECHNOLOGIES IN

CUSIP: 05337G107 Class: COM

GILDER GAGNON HOWE & CO LLC's Holding History (CIK: 0000902464)

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

Q1 2016
Shares 50,981 Value ($000) $264 Avg Close — Range —
Q1 2015
Shares 5,467 Value ($000) $222 Avg Close — Range —