X0306 4 2017-02-23 0001464423 PennyMac Mortgage Investment Trust PMT 0001440697 Grogin Jeffrey C/O PENNYMAC MORTGAGE INVESTMENT TRUST 3043 TOWNSGATE ROAD WESTLAKE VILLAGE CA 91361 1 CALO and Secretary Common Shares of Beneficial Interest 2017-02-23 4 A 0 5281 0 A 41171 D Common Shares of Beneficial Interest 2017-02-24 4 S 0 1538 16.8902 D 39633 D Common Shares of Beneficial Interest 2017-02-24 4 S 0 1826 16.8763 D 37807 D The Reporting Person was granted 5,281restricted share units. The restricted share units, which vest in three equal annual installments beginning on the first anniversary of the grant date, are to be settled in an equal number of common shares of beneficial interest upon vesting. The reported amount consists of 29,441 restricted share units and 11,730 common shares of beneficial interest. The restricted share units are to be settled in an equal number of common shares of beneficial interest upon vesting. The common shares of beneficial interest were sold pursuant to a 10b5-1 plan. The price reported is the weighted average price of multiple transactions ranging from $16.83 to $16.97. The reporting person hereby undertakes to provide upon request to the SEC, the Issuer or a security holder of the Issuer the number of common shares of beneficial interest and the prices at which the transactions were effected. The reported amount consists of 29,441 restricted share units and 10,192 common shares of beneficial interest. The restricted share units are to be settled in an equal number of common shares of beneficial interest upon vesting. The common shares of beneficial interest were sold pursuant to a 10b5-1 plan. The price reported is the weighted average price of multiple transactions ranging from $16.84 to $16.97. The reporting person hereby undertakes to provide upon request to the SEC, the Issuer or a security holder of the Issuer the number of common shares of beneficial interest and the prices at which the transactions were effected. The reported amount consists of 29,441 restricted share units and 8,366 common shares of beneficial interest. The restricted share units are to be settled in an equal number of common shares of beneficial interest upon vesting. /s/ Derek W. Stark, attorney-in-fact for Mr. Grogin 2017-02-27