SPECTOR DAVID 4

What Happened
David Spector, Chairman and CEO (also a director) of PennyMac Mortgage Investment Trust (PMT), had 5,255 shares withheld to satisfy tax withholding obligations upon vesting of restricted share units (RSUs). The withholding was reported as a disposition of 5,255 shares at $11.89 per share, a value of approximately $62,482. This was a tax-withholding event tied to vesting, not an open-market sale for investment purposes.

Key Details

• Transaction date: 2026-03-12; reported on Form 4 filed 2026-03-16 (filed within the standard 2 business-day window).
• Withheld: 5,255 shares at $11.89 each; total value ≈ $62,482. (Transaction code F — tax withholding.)
• Holdings reported after transaction: 315,461 Common Shares of beneficial interest and 105,026 restricted share units (RSUs) that will settle into an equal number of common shares upon vesting (per filing footnote).
• Footnotes: F1 indicates shares were withheld for taxes upon RSU vesting; F2 clarifies the breakdown of shares and RSUs.
• Filing timeliness: Reported promptly (filed within required period).

Context
This was a routine tax withholding tied to RSU vesting (a common administrative disposal), not an open-market sale or a purchase that signals a change in insider sentiment. The RSUs (105,026) will convert to the same number of common shares upon vesting, at which point further withholding or reporting could occur.