FIRST SUPPLEMENT TO THIRD RESTATED ADMINISTRATIVE SERVICES AGREEMENT OF THORNBURG INVESTMENT TRUST

Xxxxxxxxx Investment Trust 485BPOS

 Exhibit (h)(4)

FIRST SUPPLEMENT TO THIRD RESTATED

ADMINISTRATIVE SERVICES AGREEMENT

OF

XXXXXXXXX INVESTMENT TRUST

In accordance with paragraphs 4 and 6 of the Third Restated Administrative Services Agreement made as of February 1, 2018 between Xxxxxxxxx Investment Trust and Xxxxxxxxx Investment Management, Inc., the Third Restated Administrative Services Agreement is made applicable to Class I Shares of Xxxxxxxxx Summit Fund effective February 27, 2019.

XXXXXXXXX INVESTMENT TRUST

By: /s/ Xxxx Xxxxxxxx

XXXXXXXXX INVESTMENT MANAGEMENT, INC.

By: /s/ Xxxxxx X. Xxxxx

CWNt:\INVESTMENT TRUST\Summit Fund (2018)/1st Supp to Third Restated Admin Services Agt (Summit Fund).doc