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PRIMECAP MANAGEMENT CO
CRD 105516File 801-19765
APPROVED
Filing as of Jul 29, 2026
Feed vintage Oct 1, 2026
Regulatory AUM
$139.34B
Top 10% of cohort (national)
Discretionary AUM
$139.34B
Clients
13
18 accounts
Employees
43
Top 10% of cohort in CA
Identity & registration
ADV Item 1- Organization form
- Corporation
- Firm type
- Registered
- SEC region
- LARO
- Registration date
- Sep 14, 1983
- Principal office
- 177 E COLORADO BLVD., 11TH FLOOR, PASADENA, CA, 91105
- Phone
- 626-304-9222
- Website
- HTTP://WWW.PRIMECAP.COM
Assets & accounts
ADV Item 5F- Total regulatory AUM
- $139.34B
- Discretionary AUM
- $139.34B
- Non-discretionary AUM
- $0
- Discretionary accounts
- 18
- Non-discretionary accounts
- 0
- Total accounts
- 18
- AUM per client
- $10.72B
Clients by type
ADV Item 5D| Client type | Clients | AUM |
|---|---|---|
| Non-U.S. persons | 1 | $2.81B |
| Investment companies | 2 | $133.45B |
| Charitable organizations | 4 | $611.7M |
| Pooled investment vehicles | 1 | $1.26B |
| Pension and profit sharing plans | 5 | $1.22B |
Compensation & activities
ADV Items 5E, 5GCompensation
- A percentage of assets under your management
Advisory activities
- Portfolio management for businesses
- Portfolio management for investment companies
- Portfolio management for pooled investment vehicles
Custody
ADV Item 9- Firm Custody Cash
- No
- Firm Custody Assets
- No
- Firm Custody Clients
- No
- Firm Custody Securities
- No
- Related Person Custody Cash
- No
- Related Person Custody Assets
- No
- Related Person Custody Clients
- No
- Related Person Custody Securities
- No
Disclosure events
ADV Item 11This firm answered no to every Item 11 disclosure question in this filing.
Filed changes
| Date | Field | From | To | Change |
|---|---|---|---|---|
| Apr 1, 2026 | Employees | 40 | 43 | increased by3 |
| Apr 1, 2026 | Clients | 17 | 13 | decreased by4 |
| Apr 1, 2026 | AUM | $135,873,993,240 | $139,344,370,550 | increased by$3,470,377,310 |
| Apr 1, 2026 | Accounts | 26 | 18 | decreased by8 |
| May 1, 2025 vs Oct 1, 2022 | Employees | 44 | 40 | decreased by4 |
| May 1, 2025 vs Oct 1, 2022 | Clients | 24 | 17 | decreased by7 |
| May 1, 2025 vs Oct 1, 2022 | AUM | $153,658,443,874 | $135,873,993,240 | decreased by$17,784,450,634 |
| May 1, 2025 vs Oct 1, 2022 | Accounts | 41 | 26 | decreased by15 |
| Apr 1, 2022 | Employees | 43 | 44 | increased by1 |
| Apr 1, 2022 | AUM | $142,895,246,708 | $153,658,443,874 | increased by$10,763,197,166 |
| Apr 1, 2022 | Accounts | 42 | 41 | decreased by1 |
| Apr 1, 2021 | Registration | — | APPROVED |
On Form 5500, an adviser usually appears as a plan service provider (Schedule C), not the plan sponsor.
See plans that list “PRIMECAP MANAGEMENT” as a service provider on 5500mcp →Matched by name only — Form ADV and Form 5500 share no identifier, and names are searched loosely (“PRIMECAP MANAGEMENT” may also match similarly-named firms). Confirm identity against each filing.
Every value above is reproduced from this firm's Form ADV filing. Fields the firm left blank are shown as “Not reported” rather than filled in from other sources.