BROWN BROTHERS HARRIMAN & CO

New 13F: Q3 2026

BROWN BROTHERS HARRIMAN & CO filed its 13F for the quarter ended Sep 30, 2026 on Nov 13, 2026: $7.3B in AI and semiconductor stocks; $239.5M bought and $216.7M sold against its previous quarter, at the quarter's prices.

BROWN BROTHERS HARRIMAN & CO declares $7.3B in 156 of the 230 AI and semiconductor companies tracked on Silicon Floor, as of Jun 30, 2026 (Form 13F): 32.2% of its $22.8B 13F portfolio. Largest positions: Alphabet (0.03% of the company) and KLA (0.23% of the company). Over time: $7.3B in 156 of these companies for Q2 2026, against $2.4B in 79 for Q4 2019 (13F values as filed). From Mar 31, 2026 to Jun 30, 2026, it bought $527.2M and sold $417.0M of these stocks, at the quarter's prices: a net purchase of $110.2M; 7 new positions and 3 sold out.

Performance of its AI picks

The AI-stock portfolio BROWN BROTHERS HARRIMAN & CO declared for Q2 2026 (Form 13F), held unchanged, returned -0.5% in Q3 2026 (SMH -7.1%), ranked 1343 of 1,785 active managers. Over the last 12 months, quarter after quarter: +28.2% (SMH +87.2%), ranked 707 of 1,360 active managers. Over three years, quarter after quarter: +129.8% (SMH +325.8%), ranked 568 of 784 active managers. Over five years, quarter after quarter: +135.8% (SMH +389.8%), ranked 388 of 535 active managers. Trades made during a quarter are not visible in 13F filings: this measures its declared picks, not the return of its funds.

Largest positions

  1. Alphabet (GOOGL): $1.2B, 3.3M shares, 0.03% of the company, 5.1% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
  2. KLA (KLAC): $914.7M, 3.0M shares, 0.23% of the company, 4.0% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
  3. Apple (AAPL): $801.6M, 2.8M shares, 0.02% of the company, 3.5% of its portfolio (added this quarter); held since Q4 2019 or earlier
  4. Microsoft (MSFT): $767.3M, 2.1M shares, 0.03% of the company, 3.4% of its portfolio (added this quarter); held since Q4 2019 or earlier
  5. Amazon (AMZN): $544.3M, 2.3M shares, 0.02% of the company, 2.4% of its portfolio (added this quarter); held since Q4 2019 or earlier
  6. Applied Materials (AMAT): $482.5M, 667,312 shares, 0.08% of the company, 2.1% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
  7. NVIDIA (NVDA): $464.2M, 2.3M shares, 0.01% of the company, 2.0% of its portfolio (added this quarter); held since Q4 2019 or earlier
  8. Palo Alto Networks (PANW): $280.0M, 821,125 shares, 0.10% of the company, 1.2% of its portfolio (added this quarter); held since Q4 2019 or earlier
  9. Oracle (ORCL): $271.1M, 1.9M shares, 0.06% of the company, 1.2% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
  10. Texas Instruments (TXN): $221.6M, 743,529 shares, 0.08% of the company, 0.97% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
  11. Broadcom (AVGO): $214.5M, 567,850 shares, 0.01% of the company, 0.94% of its portfolio (added this quarter); held since Q4 2019 or earlier
  12. Cadence (CDNS): $201.1M, 535,714 shares, 0.20% of the company, 0.88% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
  13. Analog Devices (ADI): $127.2M, 320,344 shares, 0.07% of the company, 0.56% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
  14. Meta Platforms (META): $107.2M, 190,337 shares, 0.01% of the company, 0.47% of its portfolio (added this quarter); held since Q4 2019 or earlier
  15. Entegris (ENTG): $81.7M, 454,329 shares, 0.30% of the company, 0.36% of its portfolio (trimmed this quarter); held since Q2 2021

By sector

Biggest changes this quarter

Other holders of this size

Follow BROWN BROTHERS HARRIMAN & CO's SEC filings (Atom feed)

All holders · Who owns each AI company · All tracked companies · The AI market