William Blair Investment Management’s NxStage Medical Inc. NXTM Stock Holding History

William Blair Investment Management’s Portfolio NXTM Stock Details NXTM Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2017 Q3	–	Sell	-1,959,318	Closed	-$49.1M	–	466
2017 Q2	$49.1M	Buy	1,959,318 +1,628,114	+492%	+$40.3M	0.18%	144
2017 Q1	$8.89M	Sell	331,204 -112,952	-25%	-$3.12M	0.03%	316
2016 Q4	$11.6M	Sell	444,156 -6,875	-2%	-$170K	0.05%	298
2016 Q3	$11.3M	Sell	451,031 -140,267	-24%	-$3.27M	0.04%	305
2016 Q2	$12.8M	Sell	591,298 -5,203	-0.9%	-$92.8K	0.05%	269
2016 Q1	$8.94M	Buy	596,501 +42,953	+8%	+$720K	0.04%	299
2015 Q4	$12.1M	Sell	553,548 -271,744	-33%	-$5.06M	0.05%	262
2015 Q3	$13M	Buy	+825,292	New	+$13.2M	0.03%	629

Other funds holding NXTM

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

AAM

Alpine Associates Management Palm Beach, Florida $1.6B AUM 93.19% 1-Year Est. Return

Magnetar Financial Evanston, Illinois $9.84B AUM 190.63% 1-Year Est. Return

AQR Arbitrage Greenwich, Connecticut $6.09B AUM 26.7% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Deutsche Bank Frankfurt Am Main Ge, Germany $344B AUM 42.99% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

PCM

Pennant Capital Management Summit, New Jersey $212M AUM 19.37% 1-Year Est. Return

Deerfield Management New York $8.48B AUM 99.04% 1-Year Est. Return

William Blair Investment Management's NXTM Position: Q3 2017 in Review

William Blair Investment Management sold out of NxStage Medical Inc. (NXTM) in Q3 2017, closing a stake of 1,959,318 shares — an estimated $49.1M sold.

William Blair Investment Management first reported a position in NXTM in Q3 2015 and held it in 8 quarters. The position peaked at $49.1M in Q2 2017. 168 funds tracked by Wall St. Rank hold NXTM as of Q3 2017.

William Blair Investment Management reported no remaining NxStage Medical Inc. position as of Q3 2017 after selling out during the quarter.
William Blair Investment Management sold 1,959,318 NxStage Medical Inc. shares in Q3 2017, an estimated $49.1M.
William Blair Investment Management first reported a position in NxStage Medical Inc. in Q3 2015 and held it in 8 quarters.
William Blair Investment Management's NxStage Medical Inc. position peaked at $49.1M in Q2 2017.
168 funds tracked by Wall St. Rank held NxStage Medical Inc. as of Q3 2017.

Based on William Blair Investment Management's 13F filing for Q3 2017, filed 13 Nov 2017.