Exhibit a3

ARTIO GLOBAL INVESTMENT FUNDS

Amendment No. 3 to Amended and Restated Master Trust Agreement

          The undersigned, being at least a majority of the Trustees of Artio Global Investment Funds (the “Trust”), having determined it to be consistent with the fair and equitable treatment of all shareholders of the Trust, hereby amend the Trust’s Amended and Restated Master Trust Agreement (the “Master Trust Agreement”), a copy of which is on file in the office of the Secretary of the Commonwealth of Massachusetts, as follows:

	1.	Schedule A is hereby amended to read in its entirety as follows:
		Artio International Equity Fund
		Artio International Equity Fund II
		Artio Emerging Markets Local Currency Debt Fund
		Artio Total Return Bond Fund
		Artio Global High Income Fund
		Artio U.S. Microcap Fund
		Artio U.S. Smallcap Fund
		Artio U.S. Midcap Fund
		Artio U.S. Multicap Fund
The foregoing amendment shall be effective on May 1, 2012.

                       IN WITNESS WHEREOF, the undersigned duly executed this amendment as of the 27^th day of April, 2012.

/s/ Antoine Bernheim	/s/ Harvey Kaplan
Antoine Bernheim	Harvey Kaplan
/s/ Thomas Gibbons	/s/ Robert S. Matthews
Thomas Gibbons	Robert S. Matthews
/s/ Cynthia Hostetler	/s/ Peter Wolfram
Cynthia Hostetler	Peter Wolfram