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Exhibit 21.1

LIST OF PENNYMAC MORTGAGE INVESTMENT TRUST SIGNIFICANT SUBSIDIARIES
(as defined in Rule 1-02(w) of Regulation S-X)

as of December 31, 2025

 

Entity

Entity Type

State of
Incorporation

 

 

 

 

 

Copper Securities Holding, LLC

Limited Liability Company

Delaware

Fugio Securities Holding, LLC

Limited Liability Company

Delaware

PennyMac Corp.

Corporation

Delaware

PennyMac Holdings, LLC

Limited Liability Company

Delaware

PennyMac Operating Partnership, L.P.

Limited Partnership

Delaware