EcoR1 Capital’s Ardelyx ARDX Stock Holding History

EcoR1 Capital’s Portfolio ARDX Stock Details ARDX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2017 Q1	–	Sell	-1,310,023	Closed	-$18.6M	–	34
2016 Q4	$18.6M	Hold	1,310,023	–	–	5.92%	7
2016 Q3	$17M	Buy	+1,310,023	New	+$13.7M	5.2%	6

Other funds holding ARDX

NMC

NEA Management Company Timonium, Maryland $1.59B AUM 234.06% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

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

RSCM

Rock Springs Capital Management Baltimore, Maryland $2.05B AUM 161.37% 1-Year Est. Return

CAM

Cormorant Asset Management Boston, Massachusetts $1.95B AUM 773.9% 1-Year Est. Return

Perceptive Advisors New York $6.66B AUM 360.84% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

First Manhattan New York $39.2B AUM 21.04% 1-Year Est. Return

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

PHS

PFM Health Sciences San Francisco, California $1.17B AUM 92.19% 1-Year Est. Return

EcoR1 Capital's ARDX Position: Q1 2017 in Review

EcoR1 Capital sold out of Ardelyx (ARDX) in Q1 2017, closing a stake of 1,310,023 shares — an estimated $18.6M sold.

EcoR1 Capital first reported a position in ARDX in Q3 2016 and held it in 2 quarters. The position peaked at $18.6M in Q4 2016. 80 funds tracked by Wall St. Rank hold ARDX as of Q1 2017.

EcoR1 Capital reported no remaining Ardelyx position as of Q1 2017 after selling out during the quarter.
EcoR1 Capital sold 1,310,023 Ardelyx shares in Q1 2017, an estimated $18.6M.
EcoR1 Capital first reported a position in Ardelyx in Q3 2016 and held it in 2 quarters.
EcoR1 Capital's Ardelyx position peaked at $18.6M in Q4 2016.
80 funds tracked by Wall St. Rank held Ardelyx as of Q1 2017.

Based on EcoR1 Capital's 13F filing for Q1 2017, filed 15 May 2017.