Perth Bears have signed three Panthers before their inaugural season.
Penrith announced six exits Tuesday after its preliminary-final defeat to Newcastle.
Nearly all are headed to Perth or Canterbury-Bankstown.
Jack Cole, Liam Henry and Scott Sorensen are joining Perth.
Cole and Henry made their NRL debuts together in 2022, both scoring tries.
Cole signed through 2029 on a three-year deal; Henry's four-year contract ends in 2030.
Henry and Sorensen bring premiership experience to Mal Meninga's squad after Penrith's four straight titles.
Sorensen signed a two-year Bears contract through 2028.
Hooker Freddy Lussick and Jesse McLean will join the Bulldogs.
The club confirmed Lussick's two-year deal Tuesday; he joined Penrith from the Warriors on a one-year contract and covered injured Mitch Kenny from April until season's end.
McLean debuted in 2023, has four first-grade games, and starred in NSW Cup, earning a chance at Belmore.