IRONWOOD PHARMACEUTICALS INC

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

Lombard Odier Asset Management (USA) Corp's Holding History (CIK: 0001491719)

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

Q4 2015

Shares 602,271 Value ($000) $6,980 Avg Close $9.66 Range $8.42 - $10.57

Q3 2015

Shares 1,220,835 Value ($000) $12,721 Avg Close $9.33 Range $8.18 - $10.35

Q2 2015

Shares 507,224 Value ($000) $6,117 Avg Close $11.62 Range $9.69 - $13.54

Q4 2014

Shares 406,711 Value ($000) $6,231 Avg Close $11.44 Range $9.76 - $13.08

Q3 2014

Shares 325,000 Value ($000) $4,210 Avg Close $11.45 Range $10.03 - $13.36

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2015	602,271	$6,980	$9.66	$8.42 - $10.57
Q3 2015	1,220,835	$12,721	$9.33	$8.18 - $10.35
Q2 2015	507,224	$6,117	$11.62	$9.69 - $13.54
Q4 2014	406,711	$6,231	$11.44	$9.76 - $13.08
Q3 2014	325,000	$4,210	$11.45	$10.03 - $13.36