ACHILLION PHARMACEUTICALS IN

CUSIP: 00448Q201 Class: COM

RA CAPITAL MANAGEMENT, L.P.'s Holding History (CIK: 0001346824)

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

Q4 2017
Shares 585,890 Value ($000) $1,687 Avg Close — Range —
Q3 2017
Shares 13,633,220 Value ($000) $61,213 Avg Close — Range —
Q2 2017
Shares 13,633,220 Value ($000) $62,576 Avg Close — Range —
Q1 2017
Shares 13,633,220 Value ($000) $57,396 Avg Close — Range —
Q4 2016
Shares 13,633,220 Value ($000) $56,305 Avg Close — Range —
Q3 2016
Shares 12,033,220 Value ($000) $97,469 Avg Close — Range —
Q2 2016
Shares 12,033,220 Value ($000) $93,859 Avg Close — Range —
Q1 2016
Shares 12,033,220 Value ($000) $92,896 Avg Close — Range —
Q4 2015
Shares 11,222,893 Value ($000) $121,095 Avg Close — Range —
Q3 2015
Shares 11,733,815 Value ($000) $81,081 Avg Close — Range —
Q2 2015
Shares 9,945,997 Value ($000) $88,122 Avg Close — Range —
Q1 2015
Shares 8,207,530 Value ($000) $80,926 Avg Close — Range —
Q4 2014
Shares 6,700,000 Value ($000) $82,075 Avg Close — Range —
Q3 2014
Shares 6,700,000 Value ($000) $66,866 Avg Close — Range —
Q2 2014
Shares 22,486,007 Value ($000) $170,219 Avg Close — Range —
Q1 2014
Shares 23,366,007 Value ($000) $76,874 Avg Close — Range —
Q4 2013
Shares 23,366,007 Value ($000) $77,552 Avg Close — Range —
Q3 2013
Shares 14,457,061 Value ($000) $43,660 Avg Close — Range —
Q2 2013
Shares 7,455,202 Value ($000) $60,984 Avg Close — Range —