ATHENAHEALTH INC

CUSIP: 04685W103 Class: COMMON STOCK

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q4 2017
Shares 3,343 Value ($000) $445 Avg Close — Range —
Q3 2017
Shares 3,131 Value ($000) $389 Avg Close — Range —
Q2 2017
Shares 3,138 Value ($000) $441 Avg Close — Range —
Q1 2017
Shares 2,988 Value ($000) $337 Avg Close — Range —