ARDELYX INC

Ticker: ARDX CUSIP: 039697107 Class: Common Stock

FIRST MANHATTAN CO. LLC.'s Holding History (CIK: 0000728083)

Note: Option positions (PUT/CALL) are excluded.

Q3 2017

Shares 585,718 Value ($000) $3,280 Avg Close $5.27 Range $4.28 - $6.20

Q2 2017

Shares 621,928 Value ($000) $3,171 Avg Close $8.48 Range $4.05 - $14.10

Q1 2017

Shares 1,240,628 Value ($000) $15,693 Avg Close $13.16 Range $10.95 - $15.40

Q4 2016

Shares 1,221,128 Value ($000) $17,340 Avg Close $14.20 Range $10.55 - $16.30

Q3 2016

Shares 1,053,628 Value ($000) $13,633 Avg Close $10.48 Range $8.42 - $13.29

Q2 2015

Shares 86,031 Value ($000) $1,373 Avg Close $12.61 Range $7.95 - $17.66

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2017	585,718	$3,280	$5.27	$4.28 - $6.20
Q2 2017	621,928	$3,171	$8.48	$4.05 - $14.10
Q1 2017	1,240,628	$15,693	$13.16	$10.95 - $15.40
Q4 2016	1,221,128	$17,340	$14.20	$10.55 - $16.30
Q3 2016	1,053,628	$13,633	$10.48	$8.42 - $13.29
Q2 2015	86,031	$1,373	$12.61	$7.95 - $17.66