Highbridge Capital Management’s Athenahealth, Inc. ATHN Stock Holding History

Highbridge Capital Management’s Portfolio ATHN Stock Details ATHN Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2018 Q4	–	Sell	-120,000	Closed	-$16M	–	579
2018 Q3	$16M	Buy	120,000 +52,876	+79%	+$7.92M	0.38%	69
2018 Q2	$10.7M	Buy	+67,124	New	+$9.95M	0.21%	116
2017 Q2	–	Sell	-23,181	Closed	-$2.61M	–	1813
2017 Q1	$2.61M	Sell	23,181 -106,128	-82%	-$12.4M	0.04%	407
2016 Q4	$13.6M	Buy	+129,309	New	+$13.9M	0.24%	118
2015 Q3	–	Sell	-9,938	Closed	-$1.14M	–	1954
2015 Q2	$1.14M	Buy	+9,938	New	+$1.19M	0.01%	686

Other funds holding ATHN

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

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

Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

PCM

Pentwater Capital Management Naples, Florida $19.3B AUM 58.13% 1-Year Est. Return

Credit Suisse Zurich, Switzerland $104B AUM 34.76% 1-Year Est. Return

UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

AQR Arbitrage Greenwich, Connecticut $6.09B AUM 27.01% 1-Year Est. Return

Highbridge Capital Management's ATHN Position: Q4 2018 in Review

Highbridge Capital Management sold out of Athenahealth, Inc. (ATHN) in Q4 2018, closing a stake of 120,000 shares — an estimated $16M sold.

Highbridge Capital Management first reported a position in ATHN in Q2 2015 and held it in 5 quarters. The position peaked at $16M in Q3 2018. 263 funds tracked by Wall St. Rank hold ATHN as of Q4 2018.

Highbridge Capital Management reported no remaining Athenahealth, Inc. position as of Q4 2018 after selling out during the quarter.
Highbridge Capital Management sold 120,000 Athenahealth, Inc. shares in Q4 2018, an estimated $16M.
Highbridge Capital Management first reported a position in Athenahealth, Inc. in Q2 2015 and held it in 5 quarters.
Highbridge Capital Management's Athenahealth, Inc. position peaked at $16M in Q3 2018.
263 funds tracked by Wall St. Rank held Athenahealth, Inc. as of Q4 2018.

Based on Highbridge Capital Management's 13F filing for Q4 2018, filed 14 Feb 2019.