L Matthew Sherman

Insider Trading: Sales

Symbol	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
XLRN	$41.07	3,279	$134,668.53	20,725	2015-03-18	Filing
XLRN	$41.38	300	$12,414.00	17,700	2015-03-04	Filing
XLRN	$40.63	700	$28,441.00	18,000	2015-03-04	Filing
XLRN	$40.92	400	$16,368.00	18,700	2015-03-04	Filing
XLRN	$40.21	1,600	$64,336.00	20,004	2015-03-04	Filing
XLRN	$42.07	200	$8,414.00	20,004	2015-03-04	Filing
XLRN	$41.40	1,001	$41,441.40	20,204	2015-03-04	Filing
XLRN	$40.66	2,799	$113,807.34	21,205	2015-03-04	Filing
XLRN	$41.60	1,000	$41,600.00	19,100	2015-01-20	Filing
XLRN	$41.70	400	$16,680.00	20,100	2015-01-20	Filing
XLRN	$41.81	2,486	$103,939.66	24,004	2015-01-20	Filing
XLRN	$41.23	1,514	$62,422.22	22,490	2015-01-20	Filing
XLRN	$41.78	1,600	$66,848.00	20,004	2015-01-20	Filing
XLRN	$40.19	1,000	$40,190.00	20,500	2014-12-18	Filing
XLRN	$40.60	200	$8,120.00	20,004	2014-12-18	Filing
XLRN	$40.13	3,800	$152,494.00	20,204	2014-12-18	Filing
XLRN	$43.73	500	$21,865.00	21,500	2014-12-10	Filing
XLRN	$43.16	500	$21,580.00	22,000	2014-12-10	Filing
XLRN	$43.88	1,065	$46,732.20	18,004	2014-12-10	Filing
XLRN	$43.32	2,935	$127,144.20	19,069	2014-12-10	Filing