Primecap Management Co/ca/
Primecap Management Co/ca/ reported 324 stocks worth $169B in its 13F filing for Q2 2026, filed Aug 14, 2026. Its largest holdings are MU (13.1%), LLY (6.5%) and INTC (6.2%). Compared with Q1 2026, the fund opened new positions in FDXF, added to KLAC, BIIB and LUV, trimmed MU, LLY and INTC and sold out of DD, CTRA and FITB.
Holdings
| # | Stock | Value | Weight | Shares | Change | Shares, 8 qtrs | Held |
|---|---|---|---|---|---|---|---|
| 1 |  MU Micron Technology Inc | $22.2B | 13.1% | 19.2M | −2.7M (−12%) | 8 of 8 | |
| 2 |  LLY Eli Lilly & Co | $11B | 6.5% | 9.2M | −51K (−1%) | 8 of 8 | |
| 3 |  INTC Intel Corp | $10.5B | 6.2% | 75.3M | −511K (−1%) | 8 of 8 | |
| 4 |  KLAC Kla Corp | $6.2B | 3.7% | 20.5M | +18.1M (+742%) | 8 of 8 | |
| 5 |  GOOGL Alphabet Inc | $5.3B | 3.1% | 14.9M | −128K (−1%) | 8 of 8 | |
| 6 |  FLEX Flex Ltd | $3.8B | 2.2% | 23.4M | −2M (−8%) | 8 of 8 | |
| 7 |  AZN Astrazeneca PLC Ord | $3.4B | 2.0% | 18.1M | −119K (−1%) | 2 of 8 | |
| 8 |  NVDA Nvidia Corporation | $3.4B | 2.0% | 17.1M | −109K (−1%) | 8 of 8 | |
| 9 |  BIIB Biogen Inc | $3.3B | 1.9% | 15.2M | +397K (+3%) | 8 of 8 | |
| 10 |  AMZN Amazon Com Inc | $2.9B | 1.7% | 12M | −145K (−1%) | 8 of 8 |
Positions at Jun 30, 2026, as reported. Change is against the fund's Q1 2026 filing; weight is the share of the fund's reported stocks.
Sold out
held in Q1 2026, gone in Q2 2026| Stock | Value last quarter | Shares sold |
|---|---|---|
CARNIVAL CORP COMMON PAIRED STOCK | $139M | 5.4M |
HONEYWELL INTL INC | $110M | 488K |
 DD Dupont DE Nemours Inc | $91.5M | 2M |
 CTRA Coterra Energy Inc | $80.5M | 2.3M |
 FITB Fifth Third Bancorp | $9.1M | 196K |
🔒 Free account: see all 9.
Reported value
last 8 quartersThe value of the US stocks the fund reported, at quarter end prices. It moves with the market as well as with buying and selling.
Filings for Q2 2026
straight from the SEC| Filed | Form | Quarter | |
|---|---|---|---|
| Aug 14, 2026 | 13F-HR | Q2 2026 | SEC filing ↗ |
Other superinvestors
All hedge fund holdings →Primecap Management Co/ca/ 13F FAQ
What does Primecap Management Co/ca/ own?
Primecap Management Co/ca/ reported 324 stocks worth $169B in its 13F filing for Q2 2026, filed Aug 14, 2026. Its largest holdings are MU (13.1%), LLY (6.5%) and INTC (6.2%). The table above lists every position in the filing (the top 10 without an account).
What did Primecap Management Co/ca/ buy and sell in Q2 2026?
Compared with Q1 2026: 13 new positions, 82 added to, 160 trimmed and 9 sold out. New positions include FDXF. It sold all of DD, CTRA and FITB.
When will Primecap Management Co/ca/ file its next 13F?
Holdings as of Sep 30, 2026 are due by Nov 16, 2026. The filing appears on this page within minutes of reaching the SEC.
How much is Primecap Management Co/ca/'s portfolio worth?
The Q2 2026 filing reports $169B in US stocks. That leaves out cash, bonds, short positions and most foreign holdings, so the fund's total assets are usually larger.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Holdings come from the fund's SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. The fund may have changed its positions since. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.