UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

 

FORM 6-K

 

 

Report of Foreign Private Issuer Pursuant to Rule 13a-16 or

15d-16 of the Securities Exchange Act of 1934

For the month of October 2015

Commission File Number: 1-15256

 

 

OI S.A.

(Exact Name as Specified in its Charter)

 

 

N/A

(Translation of registrant’s name into English)

Rua General Polidoro, No. 99, 5th floor/part – Botafogo

22280-001 Rio de Janeiro, RJ

Federative Republic of Brazil

(Address of principal executive offices)

 

 

(Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.)

Form 20-F:  x            Form 40-F:  ¨

(Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1)):

Yes:  ¨             No:  x

(Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7)):

Yes:  ¨             No:  x

(Indicate by check mark whether the registrant by furnishing the information contained in this Form, the Registrant is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.)

Yes:  ¨             No:  x

If “Yes” is marked, indicate below the file number assigned to the

registrant in connection with Rule 12g3-2(b):

 

 

 

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Oi S.A.

Corporate Taxpayers’ Registry (CNPJ/MF) No. 76.535.764/0001-43

Board of Trade (NIRE) No. 33.300.29520-8

Publicly-Held Company

NOTICE TO THE MARKET

Oi S.A. (“Oi” or the “Company”), pursuant to the provisions of article 12 of CVM Instruction No. 358/02, discloses that it has received correspondence from Quantitative Management Associates LLC, with the following information:

“MEMORANDUM: Notice of 5% of Equity Interest

Quantitative Management Associates LLC (“QMA”) is an investment advisor and manager registered with the U.S. Securities and Exchange Commission and located in Newark, New Jersey, United States of America. QMA manages assets accounts of institutional clients, by either owners and not owners.

As of October 23, 2015, QMA’s position was reduced to below 5%, totaling approximately 933,700 shares (OIBR4). QMA manages approximately 0.59%.

Truly yours,

Clark Pellington

Chief Compliance Officer”

Rio de Janeiro, October 27, 2015

Flavio Nicolay Guimarães

Chief Financial Officer and Investor Relations Officer

Oi S.A.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: October 27, 2015