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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1491576	Tesaro Inc.	TSRO	Pharmaceutical Preparations (2834)	272249687

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1653276	Jr. H. Martin Huber	C/O Tesaro, Inc. 1000 Winter Street Waltham MA 02451	Svp & Chief Medical Officer	No	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
Common Stock	Acquisiton	2017-12-01	1,750	$0.00	8,101	No	4	M	Direct
Common Stock	Disposition	2017-12-04	829	$85.24	7,272	No	4	S	Direct

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

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Restricted Stock Units	Disposition	2017-12-01	1,750	$0.00	1,750	$0.00

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0			No	4	M	Direct

Footnotes

On July 27, 2016, the reporting person was granted 1,750 restricted stock units, all of which vested on December 1, 2017, the first day of the month following the date of satisfaction of certain performance criteria.
Each restricted stock unit represents a contingent right to receive one share of TESARO common stock.
This sale was effected in accordance with the terms of the underlying restricted stock unit award agreement and was made in order to pay the tax liability arising from the vesting of the restricted stock units.