PRIMECAP MANAGEMENT CO CA
Q4 2021 Form 13-F

PASADENA, CALIFORNIA
CIK 0000763212 · CRD 105516 · SEC-registered investment adviser
$144.5B Reported Value Total

PRIMECAP MANAGEMENT CO reports 41 total accounts under management (AUM). There are 41 discretionary accounts valued at $153,658,443,874, and 0 non-discretionary accounts.

Source: Form ADV filed * Note that certain holdings are exempt from Form 13-F reporting, so the AUM totals may be greater than the Form 13-F total.
SEC Registered Discretionary Manager
Source: Form ADV filed 2026-07-29
Reported value
$144.5B
Quarter over quarter
+6.3%
Holdings
342
Top-10 concentration
29.7%

Key People

Form ADV owners & control persons
Joel Paul Fried
CHAIRMAN
Mohammed Mohsin Ansari
VICE CHAIRMAN
Theofanis A Kolokotrones
CHAIRMAN EMERITUS

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Q4 2021 13F record

Q4 2021 13F filing summary

Q4 2021 Form 13F portfolio summary
Period of report December 31, 2021
Filed February 11, 2022
Form 13F-HR
Reported value $144.5B
Positions 342
Change in reported value +2.0%
New positions 11
Exited positions 6
Position turnover 4.9%
Top-10 concentration 29.7%

13F filings by quarter

Form 13F filings by quarter
Quarter Positions Value
Q2 2026 13F
Filed Aug 14, 2026
324 $169.1B
Q1 2026 13F
Filed May 11, 2026
320 $127.0B
Q4 2025 13F
Filed Feb 11, 2026
319 $132.1B
Q3 2025 13F
Filed Nov 12, 2025
327 $130.6B
Q2 2025 13F
Filed Aug 11, 2025
333 $126.2B
Q1 2025 13F
Filed May 9, 2025
335 $121.0B
Q4 2024 13F
Filed Feb 10, 2025
329 $129.1B
Q3 2024 13F
Filed Nov 8, 2024
336 $136.0B
Q2 2024 13F
Filed Aug 9, 2024
332 $138.1B
Q1 2024 13F
Filed May 14, 2024
335 $134.1B
Q4 2023 13F
Filed Feb 9, 2024
334 $126.3B
Q3 2023 13F
Filed Nov 13, 2023
331 $118.5B
Q2 2023 13F
Filed Aug 11, 2023
328 $119.7B
Q1 2023 13F
Filed May 15, 2023
331 $114.7B
Q4 2022 13F
Filed Feb 13, 2023
334 $109.2B
Q3 2022 13F
Filed Nov 14, 2022
335 $103.3B
Q2 2022 13F
Filed Aug 11, 2022
341 $111.9B
Q1 2022 13F
Filed May 11, 2022
339 $132.6B
Q4 2021 13F
Filed Feb 11, 2022
342 $144.5B
Q3 2021 13F
Filed Nov 12, 2021
337 $141.7B

33 earlier quarters on file — choose one from the quarter menu above.

Top 20 holdings · Q4 2021

Largest Q4 2021 13F positions by reported value
# Holding Reported value % of portfolio
1 LLY LILLY ELI & CO $8.2B 5.68%
2 MSFT MICROSOFT CORP $5.8B 4.02%
3 MU MICRON TECHNOLOGY INC $3.8B 2.66%
4 BIIB BIOGEN INC $3.8B 2.62%
5 TSLA TESLA INC $3.8B 2.61%
6 ADBE ADOBE SYSTEMS INCORPORATED $3.8B 2.61%
7 AMGN AMGEN INC $3.5B 2.46%
8 TXN TEXAS INSTRS INC $3.5B 2.39%
9 FDX FEDEX CORP $3.4B 2.36%
10 GOOGL ALPHABET INC $3.4B 2.33%
11 KLAC KLA CORP $3.3B 2.31%
12 SONY SONY GROUP CORPORATION $3.3B 2.29%
13 TMO THERMO FISHER SCIENTIFIC INC $2.7B 1.9%
14 AZN ASTRAZENECA PLC $2.7B 1.88%
15 WFC WELLS FARGO CO NEW $2.4B 1.65%
16 SCHW SCHWAB CHARLES CORP $2.4B 1.65%
17 LUV SOUTHWEST AIRLS CO $2.3B 1.61%
18 GOOG ALPHABET INC $2.3B 1.56%
19 BABA ALIBABA GROUP HLDG LTD $2.1B 1.43%
20 INTC INTEL CORP $2.0B 1.4%

Values as reported on the Q4 2021 Form 13F. Every position is in the holdings table below.

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