ATHENAHEALTH INC

CUSIP: 04685W103 Class: COMMON STOCK

CITADEL ADVISORS LLC's Holding History (CIK: 0001423053)

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

Q4 2018
Shares 173,293 Value ($000) $22,863 Avg Close — Range —
Q3 2018
Shares 759,533 Value ($000) $101,474 Avg Close — Range —
Q2 2018
Shares 53,701 Value ($000) $8,546 Avg Close — Range —
Q1 2018
Shares 105,032 Value ($000) $15,023 Avg Close — Range —
Q4 2017
Shares 45,020 Value ($000) $5,989 Avg Close — Range —
Q3 2017
Shares 210,991 Value ($000) $26,239 Avg Close — Range —
Q2 2017
Shares 77,805 Value ($000) $10,935 Avg Close — Range —
Q1 2017
Shares 167,835 Value ($000) $18,913 Avg Close — Range —
Q3 2016
Shares 13,983 Value ($000) $1,763 Avg Close — Range —
Q2 2016
Shares 43,865 Value ($000) $6,054 Avg Close — Range —
Q1 2016
Shares 108,099 Value ($000) $15,002 Avg Close — Range —
Q4 2015
Shares 79,669 Value ($000) $12,824 Avg Close — Range —
Q3 2015
Shares 419,142 Value ($000) $55,893 Avg Close — Range —
Q2 2015
Shares 180,031 Value ($000) $20,628 Avg Close — Range —
Q1 2015
Shares 20,110 Value ($000) $2,401 Avg Close — Range —
Q4 2014
Shares 4,653 Value ($000) $678 Avg Close — Range —
Q3 2014
Shares 16,225 Value ($000) $2,137 Avg Close — Range —
Q2 2014
Shares 9,660 Value ($000) $1,209 Avg Close — Range —
Q1 2014
Shares 4,837 Value ($000) $775 Avg Close — Range —
Q4 2013
Shares 190,201 Value ($000) $25,581 Avg Close — Range —
Q3 2013
Shares 613 Value ($000) $66 Avg Close — Range —
Q2 2013
Shares 273,335 Value ($000) $23,157 Avg Close — Range —