Sec Form 4 Filing - Rosenbaum David P. @ ARDELYX, INC. - 2018-07-26

Insider filing report for Changes in Beneficial Ownership
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FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP
Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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1. Name and Address of Reporting Person
Rosenbaum David P.
2. Issuer Name and Ticker or Trading Symbol
ARDELYX, INC. [ ARDX]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
X __ Officer (give title below) _____ Other (specify below)
Chief Development Officer
(Last) (First) (Middle)
C/O ARDELYX, INC., 34175 ARDENWOOD BLVD, SUITE 200
3. Date of Earliest Transaction (MM/DD/YY)
07/26/2018
(Street)
FREMONT, CA94555
4. If Amendment, Date Original Filed (MM/DD/YY)
6. Individual or Joint/Group Filing (Check Applicable Line)
__ X __ Form filed by One Reporting Person
_____ Form filed by More than One Reporting Person
(City) (State) (Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 07/26/2018 A 100,000 ( 1 ) A $ 0 168,555 ( 2 ) D
Common Stock 07/26/2018 A 10,000 ( 1 ) A $ 0 17,045 ( 3 ) I See Footnote ( 4 )
Common Stock 77,592 I See Footnote ( 5 )
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(MM/DD/YY)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (Right to Buy) $ 4.3 07/26/2018 A 54,730 ( 6 ) 07/26/2028 Common Stock 54,730 $ 0 54,730 D
Stock Option (Right to Buy) $ 4.3 07/26/2018 A 8,220 ( 6 ) 07/26/2028 Common Stock 8,220 $ 0 8,220 I See Footnote ( 4 )
Reporting Owners
Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Rosenbaum David P.
C/O ARDELYX, INC.
34175 ARDENWOOD BLVD, SUITE 200
FREMONT, CA94555
Chief Development Officer
Signatures
/s/ Elizabeth Grammer, Attorney-in-Fact for David Rosenbaum 07/30/2018
Signature of Reporting Person Date
Explanation of Responses:
( 1 )Restricted stock units ("RSUs"). The Reporting Person is entitled to receive one (1) share of Common Stock for each one (1) RSU upon the vesting thereof.
( 2 )Includes 1,644 shares acquired under the Issuer's Employee Stock Purchase Plan (the "ESPP") on February 28, 2018.
( 3 )Includes 3,000 shares acquired by the Reporting Person's spouse under the ESPP on February 28, 2018.
( 4 )The shares are directly held by the Reporting Person's wife.
( 5 )The shares are directly held by David Paul Rosenbaum and Susan Edelstein Rosenbaum, Trustees of the David Paul Rosenbaum Family Trust.
( 6 )The option becomes exercisable as it vests and the shares subject to the option vest with respect to 1/48 of the shares subject thereto on each monthly anniversary of July 26, 2018, subject to the Reporting Person's continued employment or service relationship with the Issuer on each such vesting date.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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