Filing Details

Item 1(a).

Name of Issuer:

Sarepta Therapeutics, Inc. (the "Issuer")

Item 1(b).

Address of Issuer's Principal Executive Offices:

215 First Street, Suite 415
Cambridge, MA 02142

Item 2(a).

Name of Persons Filing:

The names of the persons filing this statement on Schedule 13G are Tourbillon Capital Partners LP ("Tourbillon Capital Partners") and Jason H. Karp (together, the "Reporting Persons"). Mr. Karp is the Chief Executive Officer of Tourbillon Capital Partners.

Item 2(b).

Address of Principal Business Office or, if None, Residence:

The address of the principal business office of each of the Reporting Persons is 888 Seventh Avenue, 32^nd Floor, New York, NY 10019.

Item 2(c).

Citizenship:

Tourbillon Capital Partners is a Delaware limited partnership. Mr. Karp is a citizen of the United States of America.

Item 2(d).

Title of Class of Securities:

Common Stock with $0.0001 par value (the "Common Stock")

Item 2(e).

CUSIP Number:

803607100

Item 3.

If This Statement is Filed Pursuant to Rule 13d 1(b), or 13d-2(b) or (c), Check Whether the Person Filing is a:

Item 4.

Ownership.

Provide the following information regarding the aggregate number and percentage of the class of securities of the Issuer.

(a)

Amount beneficially owned:

As of the close of business on December 31, 2017, the Reporting Persons may be deemed to have  beneficially owned 927,225 shares of Common Stock, as well as 1,100,000 shares of Common Stock underlying currently exercisable options.

(b)

Percent of class:

The aggregate percentage of Common Stock reported owned by each person named herein is based upon 64,632,001 shares of Common Stock outstanding as of October 26, 2017 as reported in the Issuer's quarterly report on Form 10-Q filed with the Securities And Exchange Commission on November 1, 2017. As of the close of business on December 31, 2017, the Reporting Persons may be deemed to have beneficially owned approximately 3.14% of the shares of Common Stock outstanding.

(c)

Number of shares as to which such person has:

(i)

Sole power to vote or to direct the vote:

See Cover Pages Items 5-9.

(ii)

Shared power to vote or to direct the vote

See Cover Pages Items 5-9.

(iii)

Sole power to dispose or to direct the disposition of

See Cover Pages Items 5-9.

(iv)

Shared power to dispose or to direct the disposition of

See Cover Pages Items 5-9.

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 Persons have 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.

See Exhibit A to the Schedule 13G filed with the Securities and Exchange Commission on October 28, 2016.

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.

SIGNATURES

After reasonable inquiry and to the best of its knowledge and belief, each of the undersigned certifies that the information with respect to it set forth in this statement is true, complete, and correct.

Dated:

February  14 , 2018

TOURBILLON CAPITAL PARTNERS LP

By:  /s/ Brian A. Kessler

       Brian A. Kessler,

       Chief Financial Officer

Jason H. Karp