The investigation centers on PennyMac’s January 29, 2026, disclosure of its fourth-quarter and full-year 2025 results. The filing revealed a sharp decline in servicing segment pretax income, which dropped to $37.3 million from $157.4 million the previous quarter. The company attributed the shortfall to increased realization of mortgage servicing rights cash flows, spurred by higher prepayment activity in a lower-interest-rate environment. Following the disclosure, shares of the New York-based firm tumbled $49.78 to close at $99.92 on January 30.

Investors who held PennyMac securities during this period are being invited to participate in a prospective class action. Rosen Law, which specializes in shareholder litigation and has previously secured multi-million dollar settlements, is managing the outreach. Attorney Phillip Kim is directing the inquiry, with the firm emphasizing that investors may seek compensation through contingency fee arrangements without incurring out-of-pocket costs.