ATHENAHEALTH INC

CUSIP: 04685W103 Class: COMMON STOCK

K2 PRINCIPAL FUND, L.P.'s Holding History (CIK: 0001461790)

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

Q4 2018
Shares 44,345 Value ($000) $5,850 Avg Close — Range —
Q3 2018
Shares 55,200 Value ($000) $7,375 Avg Close — Range —
Q2 2018
Shares 55,200 Value ($000) $8,785 Avg Close — Range —