UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. 1)*
NephroGenex, Inc.
(Name of Issuer)
Common Stock, $0.001 per share
(Title of Class of Securities)
640667101
(CUSIP Number)
December 9, 2015
(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
| ¨ | Rule 13d-1(b) |
| x | Rule 13d-1(c) |
| ¨ | Rule 13d-1(d) |
* The remainder of this cover page shall be filled out for a reporting person’s initial filing of this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.
The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act.
CUSIP No. 640667101
Page 2 of 5
| 1. | Name of Reporting Person |
I.R.S. Identification No. of Above Person (Entities Only)
Biostratum, Incorporated
| 2. | Check the Appropriate Box if a Member of a Group |
(a) ¨
(b) ¨
| 3. | SEC Use Only |
| 4. | Citizenship or Place of Organization |
Delaware
| 5. | Sole Voting Power | |
| Number | ||
| of Shares | 0 | |
| Beneficially | 6. | Shared Voting Power |
| Owned By | ||
| Each | 0 | |
| Reporting | 7. | Sole Dispositive Power |
| Person with | ||
| 0 | ||
| 8. | Shared Dispositive Power | |
| 0 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person |
0
| 10. | Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares |
Not Applicable
| 11. | Percent of Class Represented by Amount in Row (9) |
0.0%
| 12. | Type of Reporting Person |
CO
CUSIP No. 640667101
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| Item 1(a) | Name of Issuer |
NephroGenex, Inc. (the “Issuer”)
| Item 1(b) | Address of Issuer’s Principal Executive Offices |
3200 Beechleaf Ct.
Suite 900
Raleigh, NC 27604
| Item 2(a) | Name of Person Filing |
Biostratum, Incorporated
| Item 2(b) | Address of Principal Business Office, or if none, Residence |
c/o Biostratum, Incorporated
1923 Delaine Drive
Burlington, NC 27215
| Item 2(c) | Citizenship |
Delaware corporation
| Item 2(d) | Title of Class of Securities |
Common Stock, $0.001 per share
| Item 2(e) | CUSIP Number |
640667101
CUSIP No. 640667101
Page 4 of 5
| Item 3. | Filing pursuant to Rules 13d-1(b) or 13d-2(b) or (c) |
Not Applicable
| Item 4. | Ownership |
| (a) | Amount Beneficially Owned |
As of the date hereof, the Reporting Person no longer beneficially owns any shares of the Issuer because the shares were distributed to the Reporting Person’s shareholders.
| Item 5. | Ownership of Five Percent or Less of a Class |
If this statement is being filed to report the fact that as of the date hereof the Reporting Person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following x.
| Item 6. | Ownership of More than Five Percent on Behalf of Another Person |
Not Applicable
| Item 7. | Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company |
Not Applicable
| Item 8. | Identification and Classification of Members of the Group |
Not Applicable
| Item 9. | Notice of Dissolution of Group |
Not Applicable
| Item 10. | Certification |
By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under §240.14a-11.
CUSIP No. 640667101
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SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
Date: January 7, 2016
| BIOSTRATUM, INCORPORATED | |
| By: | /s/ Eugen Steiner |
| Name: | Eugen Steiner |
| Title: | President & CEO |