William Blair & Company’s Acceleron Pharma Inc. XLRN Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Shares Change %	Capital Flow	Portfolio Weight	Portfolio Position
2021 Q4	–	Sell	-1,323	Closed	-$228K	–	2043
2021 Q3	$228K	Buy	+1,323	New	+$228K	﹤0.01%	1436
2021 Q2	–	Sell	-1,735	Closed	-$235K	–	1952
2021 Q1	$235K	Hold	1,735	–	–	﹤0.01%	1422
2020 Q4	$222K	Buy	+1,735	New	+$222K	﹤0.01%	1392