IRONWOOD PHARMACEUTICALS INC

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

EcoR1 Capital, LLC's Holding History (CIK: 0001587114)

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

Q1 2020
Shares 4,393,236 Value ($000) $44,328 Avg Close $11.75 Range $7.99 - $14.06
Q4 2019
Shares 4,371,408 Value ($000) $58,183 Avg Close $11.03 Range $7.91 - $14.10
Q3 2019
Shares 4,671,408 Value ($000) $40,104 Avg Close $9.72 Range $8.40 - $11.97
Q2 2019
Shares 4,671,408 Value ($000) $51,105 Avg Close $11.20 Range $9.61 - $13.00
Q1 2019
Shares 4,397,168 Value ($000) $59,494 Avg Close $11.17 Range $8.25 - $12.74
Q4 2018
Shares 5,381,282 Value ($000) $55,750 Avg Close $11.48 Range $7.60 - $16.21
Q3 2018
Shares 5,141,624 Value ($000) $94,914 Avg Close $15.81 Range $13.94 - $17.76
Q2 2018
Shares 6,250,073 Value ($000) $119,501 Avg Close $14.80 Range $11.58 - $16.30
Q1 2018
Shares 5,885,583 Value ($000) $90,815 Avg Close $12.46 Range $10.80 - $13.94
Q4 2017
Shares 5,885,583 Value ($000) $88,225 Avg Close $13.06 Range $11.84 - $14.80
Q3 2017
Shares 5,459,583 Value ($000) $86,098 Avg Close $13.76 Range $11.86 - $16.57
Q2 2017
Shares 3,753,635 Value ($000) $70,869 Avg Close $14.53 Range $12.50 - $16.70
Q1 2017
Shares 2,905,515 Value ($000) $49,568 Avg Close $13.67 Range $11.25 - $15.52
Q4 2016
Shares 2,855,515 Value ($000) $43,661 Avg Close $12.63 Range $10.45 - $14.15
Q3 2016
Shares 2,810,315 Value ($000) $44,628 Avg Close $11.69 Range $10.20 - $13.54
Q2 2016
Shares 2,430,451 Value ($000) $31,778 Avg Close $9.77 Range $7.59 - $11.11
Q1 2016
Shares 2,061,417 Value ($000) $22,552 Avg Close $8.25 Range $6.16 - $9.66
Q4 2015
Shares 821,531 Value ($000) $9,522 Avg Close $9.66 Range $8.42 - $10.57
Q1 2015
Shares 900,000 Value ($000) $14,400 Avg Close $13.12 Range $11.88 - $14.33
Q4 2014
Shares 900,000 Value ($000) $13,788 Avg Close $11.44 Range $9.76 - $13.08