Golden Door Asset
Census

Generalist · Pasadena, CA

Primecap Management Co

Q3 2025 · compared with Q2 2025

Filed as Primecap Management Co/ca/

Software
$12.4B
Weight of 13F
9.5%
Names
34
Net bought
−$1.5B

Filed 12 November 2025 · SEC filing.

327 positions in the whole 13F.

Quarters on file

Each quarter on file, back to June 2016 when the filing exists. Net bought is the share change from the previous quarter at that quarter’s close. A split that leaves the dollar value in place counts as flat.

What moved the book

The five software lines with the largest share change this quarter.

Software held