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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1446847	Ironwood Pharmaceuticals Inc	IRWD	Pharmaceutical Preparations (2834)	043404176

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1478485	M Peter Hecht	C/O Ironwood Pharmaceuticals, Inc. 301 Binney Street Cambridge MA 02142	Chief Executive Officer	Yes	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Class A Common Stock	Acquisiton	2012-11-05	50,000	$11.65	72,803	No	4	P	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	P	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Class A Common Stock	2,985	Indirect	The 2000 Trust for Malcolm Paul Hecht
Class A Common Stock	2,985	Indirect	The 2000 Trust for Zoe Niovi Hecht
Class A Common Stock	2,985	Indirect	The 2000 Trust for Alexis Mae Hecht
Class B Common Stock	3,649,751	Direct

Footnotes

The price reported is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $11.36 to $11.75, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote.
These shares are held in the referenced trust for the benefit of the reporting person's child. The reporting person's spouse is the trustee of this trust. The reporting person disclaims beneficial ownership of these securities, and the filing of this report is not an admission that the reporting person is the beneficial owner of these securities for purposes of Section 16 or any other purpose.