HYPERION THERAPEUTICS INC

CUSIP: 44915N101 Class: COM

DIMENSIONAL FUND ADVISORS LP's Holding History (CIK: 0000354204)

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

Q1 2015
Shares 21,384 Value ($000) $982 Avg Close — Range —
Q4 2014
Shares 41,677 Value ($000) $1,000 Avg Close — Range —