IRONWOOD PHARMACEUTICALS INC

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

Asset Management One Co., Ltd.'s Holding History (CIK: 0001068855)

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

Q3 2016

Shares 622,699 Value ($000) $9,589 Avg Close $11.69 Range $10.20 - $13.54

Q2 2016

Shares 799,751 Value ($000) $10,372 Avg Close $9.77 Range $7.59 - $11.11

Q1 2016

Shares 836,470 Value ($000) $8,757 Avg Close $8.25 Range $6.16 - $9.66

Q4 2015

Shares 825,823 Value ($000) $9,959 Avg Close $9.66 Range $8.42 - $10.57

Q3 2015

Shares 847,748 Value ($000) $8,333 Avg Close $9.33 Range $8.18 - $10.35

Q2 2015

Shares 957,726 Value ($000) $11,100 Avg Close $11.62 Range $9.69 - $13.54

Q1 2015

Shares 1,157,428 Value ($000) $19,132 Avg Close $13.12 Range $11.88 - $14.33

Q4 2014

Shares 1,159,005 Value ($000) $17,338 Avg Close $11.44 Range $9.76 - $13.08

Q3 2014

Shares 892,055 Value ($000) $11,944 Avg Close $11.45 Range $10.03 - $13.36

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2016	622,699	$9,589	$11.69	$10.20 - $13.54
Q2 2016	799,751	$10,372	$9.77	$7.59 - $11.11
Q1 2016	836,470	$8,757	$8.25	$6.16 - $9.66
Q4 2015	825,823	$9,959	$9.66	$8.42 - $10.57
Q3 2015	847,748	$8,333	$9.33	$8.18 - $10.35
Q2 2015	957,726	$11,100	$11.62	$9.69 - $13.54
Q1 2015	1,157,428	$19,132	$13.12	$11.88 - $14.33
Q4 2014	1,159,005	$17,338	$11.44	$9.76 - $13.08
Q3 2014	892,055	$11,944	$11.45	$10.03 - $13.36