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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	2018-09-21	1,250	$0.00	12,577	No	4	M	Direct
Common Stock	Disposition	2018-09-24	371	$37.63	12,206	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	2018-09-21	1,250	$0.00	1,250	$0.00

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
1,250			No	4	M	Direct

Footnotes

This sale was effected in accordance with the terms of the underlying restricted stock unit award agreement and a 10b5-1 trading plan entered into by the Reporting Person and was made in order to pay the tax liability arising from the vesting of the restricted stock units.
Each restricted stock unit represents a contingent right to receive one share of TESARO common stock.
The restricted stock units were granted on September 21, 2015, and vest in four equal annual installments beginning September 21, 2016.