X0306 4 2015-05-14 0001464423 PennyMac Mortgage Investment Trust PMT 0001275713 SPECTOR DAVID C/O PENNYMAC MORTGAGE INVESTMENT TRUST 6101 CONDOR DRIVE MOORPARK CA 93021 1 1 President and COO Common Shares of Beneficial Interest 2015-05-14 4 S 0 7200 18.1091 D 299722 D Common Shares of Beneficial Interest 2015-05-15 4 S 0 10050 18.1143 D 289672 D The common shares of beneficial interest were sold pursuant to a 10b5-1 plan in order to pay estimated tax obligations resulting from the vesting of 12,000 restricted share units on May 14, 2015. The common shares of beneficial interest were sold pursuant to a 10b5-1 plan in order to pay estimated tax obligations resulting from the vesting of 16,750 restricted share units on May 15, 2015. The reported amount consists of 149,561 restricted share units and 140,11 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. Spector 2015-05-18