Highland Capital Management Reveals Investment In Relypsa (RLYP)

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Item 5 Ownership of Five Percent or Less of a Class.

Inapplicable.

Item 6 Ownership of More Than Five Percent on Behalf of Another Person.

Inapplicable.

Item 7 Identification and Classification of the Subsidiary which Acquired the Security Being Reported On by the Parent Holding Company.

Inapplicable.

Item 8 Identification and Classification of Members of the Group.

Inapplicable.

Item 9 Notice of Dissolution of Group.

Inapplicable.

Item 10 Certification.

By signing below each of the Reporting Persons certifies that, to the
best of such persons 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.

Exhibits Exhibit 99-1

Joint Filing Agreement, dated August 8, 2016, by and among the
Small-Cap Fund, Highland Fund Advisors, Strand XVI, the Credit Fund, NexPoint, NexPoint GP, the Select Fund, Select GP, Select LLC, Highland Capital, Strand and James D. Dondero.

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