Exhibit 99.(a)(11)

Creation and Designation of

Additional Series of Shares of Beneficial Interest of

American Beacon Funds

Pursuant to Article III, Section 1 of the Amended and Restated Declaration of Trust of the American Beacon Funds (the “Trust”) dated March 4, 2015 (“Trust Instrument”), the American Beacon ARK Disruptive Innovation Fund (the “Fund”), a new series of the Trust, was created by resolution of the Trust’s Board of Trustees (“Board”) on November 3, 2016. On May 16, 2017 the Board ratified and approved the Fund’s name change to American Beacon ARK Transformational Innovation Fund.

The Fund and the Fund’s shares of beneficial interest (“Shares”) are as follows:

1. All rights and preferences of the Fund and the Shares are as set forth in the Trust Instrument and the Amended and Restated Bylaws of the Trust dated March 4, 2015 and the Amended and Restated Bylaws of the Trust dated February 18, 2014.

IN WITNESS WHEREOF, the undersigned have executed this instrument the 16th day of May, 2017, effective as of April 26, 2017.

/s/ Gilbert G. Alvarado

Gilbert G. Alvarado

/s/ Joseph B. Armes

Joseph B. Armes

/s/ Gerard J. Arpey

Gerard J. Arpey

/s/ Brenda A. Cline

Brenda A. Cline

/s/ Eugene J. Duffy

Eugene J. Duffy

/s/ Thomas M. Dunning

Thomas M. Dunning

/s/ Alan D. Feld

Alan D. Feld

/s/ Richard A. Massman

Richard A. Massman

/s/ Barbara J. McKenna

Barbara J. McKenna

/s/ R. Gerald Turner   

R. Gerald Turner

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