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Tesaro Inc. (TSRO)

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Insider Trading: Purchases

Insider	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
Baskett Large Shareholder	$35.19	710,429	$24,999,996.51	710,429	2016-03-18	Filing
Baskett Large Shareholder	$35.19	710,429	$24,999,996.51	9,564,684	2016-03-18	Filing
Barris Large Shareholder	$35.19	710,429	$24,999,996.51	710,429	2016-03-18	Filing
Barris Large Shareholder	$35.19	710,429	$24,999,996.51	9,564,684	2016-03-18	Filing
Barrett Large Shareholder	$35.19	710,429	$24,999,996.51	9,564,684	2016-03-18	Filing
New Large Shareholder	$35.19	710,429	$24,999,996.51	9,564,684	2016-03-18	Filing
Seidenberg Director	$35.19	110,827	$3,900,002.13	227,255	2016-03-18	Filing
Seidenberg Director	$35.19	1,310,031	$46,099,990.89	2,686,268	2016-03-18	Filing
Oronsky Director	$35.19	142,085	$4,999,971.15	2,013,786	2016-03-18	Filing
Armitage Director	$54.63	500	$27,316.00	1,500	2015-09-08	Filing
Armitage Director	$38.16	1,000	$38,155.00	1,000	2014-12-12	Filing
Alleva Director	$26.17	1,100	$28,787.00	25,285	2014-09-29	Filing
Alleva Director	$34.33	1,449	$49,744.17	21,663	2013-07-31	Filing
Alleva Director	$28.10	1,050	$29,505.00	19,100	2013-04-30	Filing
Alleva Director	$15.45	3,240	$50,058.00	18,050	2012-11-01	Filing
Moulder Officer, Director	$11.69	10,000	$116,900.00	1,006,428	2012-08-30	Filing
Seidenberg Director	$13.50	17,333	$233,995.50	171,028	2012-07-03	Filing
Seidenberg Director	$13.50	204,889	$2,766,001.50	2,021,637	2012-07-03	Filing
Oronsky Large Shareholder, Director	$13.50	444,444	$5,999,994.00	3,071,701	2012-07-03	Filing
Alleva Director	$13.50	11,481	$154,993.50	11,481	2012-07-03	Filing