X0508 4 2026-02-23 0001464423 PennyMac Mortgage Investment Trust PMT 0002058066 Tidmore Abbie C/O PENNYMAC MORTGAGE INVESTMENT TRUST 3043 TOWNSGATE ROAD WESTLAKE VILLAGE CA 91361 1 Chief Revenue Officer 0 Common Shares of Beneficial Interest 2026-02-23 4 M 0 1263 0 A 29339 D Common Shares of Beneficial Interest 2026-02-23 4 M 0 2056 0 A 31395 D Common Shares of Beneficial Interest 2026-02-23 4 F 0 308 12.29 D 31087 D Common Shares of Beneficial Interest 2026-02-23 4 F 0 501 12.29 D 30586 D Common Shares of Beneficial Interest 2026-02-23 4 A 0 11111 0 A 41697 D Performance-Based Restricted Share Units 2026-02-23 4 A 0 1263 0 A Common Shares of Beneficial Interest 1263 1263 D Performance-Based Restricted Share Units 2026-02-23 4 M 0 1263 0 D Common Shares of Beneficial Interest 1263 0 D Performance-Based Restricted Share Units 2026-02-23 4 A 0 2056 0 A Common Shares of Beneficial Interest 2056 2056 D Performance-Based Restricted Share Units 2026-02-23 4 M 0 2056 0 D Common Shares of Beneficial Interest 2056 0 D This performance-based restricted share unit (PSU) award was granted on March 12, 2024 and may vest in three equal installments subject to the satisfaction of certain performance based criteria for each of the fiscal years ending 2024, 2025 and 2026. The PSU vested as to one-third on February 23, 2026 and the payout of common shares of beneficial interest pursuant to the PSU award for the 2025 fiscal year was determined based on a return on equity and relative total stockholder return for the period of January 1, 2025 through December 31, 2025 resulting in a payout of 79.2%. This performance-based restricted share unit (PSU) award was granted on February 24, 2025 and may vest in three equal installments subject to the satisfaction of certain performance based criteria for each of the fiscal years ending 2025, 2026 and 2027. The PSU vested as to one-third on February 23, 2026 and the payout of common shares of beneficial interest pursuant to the PSU award for the 2025 fiscal year was determined based on a return on equity and relative total stockholder return for the period of January 1, 2025 through December 31, 2025 resulting in a payout of 79.2%. Represents shares withheld for taxes upon vesting of performance-based restricted stock units. The Reporting Person was granted restricted stock units, which will vest in three equal installments beginning on the first anniversary of the date of the grant, are to be settled in an equal number of shares of Common Stock upon vesting. The reported amount consists of 20,101 restricted stock units and 21,596 shares of Common Shares of Beneficial Interest. The restricted stock units are to be settled in an equal number of shares of Common Stock upon vesting. /s/ Derek W. Stark, attorney-in-fact for Ms. Tidmore 2026-02-25