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Filing Details

Accession Number:: 0000932440-12-000050
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2012-02-09 21:56:29
Reporting Period:: 2012-02-02

Filing Date:: 2012-02-09
Accepted Time:: 2012-02-09 21:56:29
SEC Url:: Form 4 Filing

Issuer

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

Insiders

Cik	Name	Reported Address	Director	Officer	Large Shareholder	Other
1357610	Ridgeback Capital Management Lp	430 Park Avenue 12Th Floor New York NY 10022	No	No	Yes	No
1358916	Ltd. Investments Capital Ridgeback	430 Park Avenue 12Th Floor New Yor, NY 10022	No	No	Yes	No
1423994	L.p. Investments Capital Ridgeback	430 Park Avenue 12Th Floor New York NY 10022	No	No	Yes	No

Reported Non-Derivative Transactions

Show Other Fields >>

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Class B Common Stock	Disposition	2012-02-02	3,300	$15.03	6,952,017	No	4	S	Direct
Class B Common Stock	Disposition	2012-02-03	61,949	$14.92	6,890,068	No	4	S	Direct
Class B Common Stock	Disposition	2012-02-06	47,229	$14.80	6,842,839	No	4	S	Direct

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

Footnotes

Ridgeback Capital Investments L.P. owns all of the securities reported herein directly. Ridgeback Capital Investments Ltd. is the general partner of Ridgeback Capital Investments L.P. Pursuant to an investment management agreement, Ridgeback Capital Management LP maintains investment and voting power with respect to the securities held or controlled by Ridgeback Capital Investments Ltd. Wayne Holman, an individual, controls Ridgeback Capital Management LP. Ridgeback Capital Management LP, Ridgeback Capital Investments Ltd. and Wayne Holman do not own any securities reported herein directly and disclaim beneficial ownership of any of the securities covered by this statement, except to the extent of any pecuniary interest therein.
Shares of Class B Common Stock are convertible at any time, at the holder's election, and automatically upon transfer, on a one-for-one basis into shares of Class A Common Stock.
Constitutes the weighted average purchase price for multiple transactions reported on this line having prices per share ranging from $15.00 to $15.10. The Reporting Persons will provide upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding each separate transaction.
Constitutes the weighted average purchase price for multiple transactions reported on this line having prices per share ranging from $14.75 to $15.01. The Reporting Persons will provide upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding each separate transaction.
Constitutes the weighted average purchase price for multiple transactions reported on this line having prices per share ranging from $14.63 to $14.93. The Reporting Persons will provide upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding each separate transaction.