Ardelyx (ARDX): RA Capital Management Boosts Stake to 7.7%

Page 4 of 7 – SEC Filing
CUSIP No. 039697107 13G
1.

Names of Reporting Persons.
I.R.S. Identification Nos. of above persons (entities only).

RA Capital Healthcare Fund, L.P.           

2. Check the Appropriate Box if a Member of a Group (See Instructions)
(a) ¨
(b) ¨
3. SEC Use Only
4. Citizenship or Place of Organization Delaware
Number of
Shares
Beneficially
Owned by
Each Reporting
Person With
5. Sole Voting Power 0  
 
6. Shared Voting Power 2,451,968
7. Sole Dispositive Power 0
8. Shared Dispositive Power 2,451,968

 

9.

Aggregate Amount Beneficially Owned by Each Reporting Person

2,451,968 

10.

Check if the Aggregate Amount in Row (9) Excludes                         ¨

Certain Shares (See Instructions)

11.

Percent of Class Represented by Amount in Row (9)

5.2%3

12.

Type of Reporting Person (See Instructions)

PN (Limited Partnership)

 

3 The reporting person is the beneficial owner of
2,314,024 shares of Common Stock, as well as warrants to acquire 137,944 shares of Common Stock, which together would constitute
approximately 7.7% of the issuer’s Common Stock if the warrants were exercised in full, following the issuance of 137,944
shares of Common Stock in respect of the fully-exercised warrants. The percentage calculation assumes that there are currently
47,230,378 outstanding shares of the Issuer, based on the Issuer’s 10-Q as filed with the SEC on May 9, 2016 and the Issuer’s
8-K as filed with the SEC on July 20, 2016.

 

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