ATHENAHEALTH INC

CUSIP: 04685W103 Class: COMMON STOCK

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

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

Q4 2018
Shares 227,209 Value ($000) $29,975 Avg Close — Range —
Q3 2018
Shares 223,706 Value ($000) $29,887 Avg Close — Range —
Q2 2018
Shares 222,536 Value ($000) $35,414 Avg Close — Range —
Q1 2018
Shares 221,746 Value ($000) $31,716 Avg Close — Range —
Q4 2017
Shares 218,819 Value ($000) $29,113 Avg Close — Range —
Q3 2017
Shares 190,676 Value ($000) $23,712 Avg Close — Range —
Q2 2017
Shares 173,106 Value ($000) $24,331 Avg Close — Range —
Q1 2017
Shares 121,650 Value ($000) $13,708 Avg Close — Range —
Q4 2016
Shares 88,589 Value ($000) $9,317 Avg Close — Range —
Q3 2016
Shares 88,990 Value ($000) $11,222 Avg Close — Range —
Q2 2016
Shares 83,984 Value ($000) $11,589 Avg Close — Range —
Q1 2016
Shares 85,680 Value ($000) $11,890 Avg Close — Range —
Q4 2015
Shares 83,559 Value ($000) $13,453 Avg Close — Range —
Q3 2015
Shares 80,786 Value ($000) $10,771 Avg Close — Range —
Q2 2015
Shares 77,924 Value ($000) $8,929 Avg Close — Range —
Q1 2015
Shares 65,498 Value ($000) $7,819 Avg Close — Range —
Q4 2014
Shares 61,888 Value ($000) $9,019 Avg Close — Range —
Q3 2014
Shares 41,068 Value ($000) $5,409 Avg Close — Range —
Q2 2014
Shares 42,213 Value ($000) $5,284 Avg Close — Range —
Q1 2014
Shares 41,764 Value ($000) $6,693 Avg Close — Range —
Q4 2013
Shares 42,918 Value ($000) $5,771 Avg Close — Range —
Q3 2013
Shares 42,552 Value ($000) $4,619 Avg Close — Range —
Q2 2013
Shares 42,055 Value ($000) $3,565 Avg Close — Range —