IRONWOOD PHARMACEUTICALS INC

Ticker: IRWD CUSIP: 46333X108 Class: COM CL A

BAKER BROS. ADVISORS LP's Holding History (CIK: 0001263508)

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

Q1 2016
Shares 169,163 Value ($000) $1,851 Avg Close $8.25 Range $6.16 - $9.66
Q4 2015
Shares 169,163 Value ($000) $1,961 Avg Close $9.66 Range $8.42 - $10.57
Q3 2015
Shares 169,163 Value ($000) $1,763 Avg Close $9.33 Range $8.18 - $10.35
Q2 2015
Shares 169,163 Value ($000) $2,040 Avg Close $11.62 Range $9.69 - $13.54
Q1 2015
Shares 169,163 Value ($000) $2,707 Avg Close $13.12 Range $11.88 - $14.33
Q4 2014
Shares 346,160 Value ($000) $5,303 Avg Close $11.44 Range $9.76 - $13.08
Q3 2014
Shares 346,160 Value ($000) $4,485 Avg Close $11.45 Range $10.03 - $13.36
Q2 2014
Shares 446,160 Value ($000) $6,840 Avg Close $10.87 Range $7.55 - $13.26
Q1 2014
Shares 446,160 Value ($000) $5,497 Avg Close $11.24 Range $9.40 - $12.96
Q4 2013
Shares 546,160 Value ($000) $6,341 Avg Close $8.98 Range $7.50 - $10.21
Q3 2013
Shares 461,160 Value ($000) $5,460 Avg Close $9.81 Range $8.23 - $11.68
Q2 2013
Shares 922,160 Value ($000) $9,157 Avg Close $12.12 Range $8.23 - $15.39