AiSiWhale

AI & tech investing

PRIMECAP MANAGEMENT CO/CA/

CIK 763212

13F filing for Q2 2026・No. 80

Holdings
US$169.11B
Quarter change
+US$42.1B
Entries
324
Net bought (estimate)
—

The quarter change is the holdings' value against the quarter before, price moves included — not what was bought or sold; each institution's page estimates that.

Net bought (estimate)

Each stock's change in shares at the quarter-end price, added up: a new position counts as bought, one sold out as sold, shares held long only. Splits are compared split-adjusted; corporate actions under a new CUSIP are not estimated. An estimate from the filings, not actual trades.

No filing the quarter before to compare with.

Largest holdings

324 stocks worth US$169.11B, options and bonds left out.

StockThis quarterValueWeight
MUMicronCOM—US$22.18B13.12%
LLYELI LILLY & COCOM—US$11B6.51%
INTCINTEL CORPCOM—US$10.51B6.21%
KLACKLA CORPCOM NEW—US$6.2B3.66%
GOOGLAlphabetCAP STK CL A—US$5.31B3.14%
FLEXFLEX LTDORD—US$3.79B2.24%
AZNASTRAZENECA PLCORD—US$3.43B2.03%
NVDANvidiaCOM—US$3.42B2.02%
BIIBBIOGEN INCCOM—US$3.27B1.94%
AMZNAmazonCOM—US$2.85B1.69%

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Filings

The quarter's original 13F filings (SEC).

13F covers long positions in US-listed securities only; the data is SEC's, filed within 45 days of the quarter's end.

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Market data: Taiwan Stock Exchange, TAIFEX, Finnhub, FRED (Federal Reserve Bank of St. Louis), Tiingo, CoinGecko.

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Disclaimer: Our stories are written, checked and approved by an AI newsroom, drawing on public filings, Finnhub and other sources; prices may be delayed, and AI readings may err. For reference only, not investment advice — invest with care.