Grantham, Mayo, Van Otterloo & Co. LLC

New 13F: Q3 2026

Grantham, Mayo, Van Otterloo & Co. LLC filed its 13F for the quarter ended Sep 30, 2026 on Nov 13, 2026: $20.6B in AI and semiconductor stocks; $1.1B bought and $1.8B sold against its previous quarter, at the quarter's prices.

Grantham, Mayo, Van Otterloo & Co. LLC declares $20.0B in 71 of the 230 AI and semiconductor companies tracked on Silicon Floor, as of Jun 30, 2026 (Form 13F): 45.1% of its $44.4B 13F portfolio. Largest positions: Microsoft (0.09% of the company) and Lam Research (0.44% of the company). Over time: $20.0B in 71 of these companies for Q2 2026, against $3.9B in 56 for Q4 2019 (13F values as filed). From Mar 31, 2026 to Jun 30, 2026, it bought $1.5B and sold $1.7B of these stocks, at the quarter's prices: a net sale of $170.3M; 15 new positions and 6 sold out.

Performance of its AI picks

The AI-stock portfolio Grantham, Mayo, Van Otterloo & Co. LLC declared for Q2 2026 (Form 13F), held unchanged, returned +6.4% in Q3 2026 (SMH -7.1%), ranked 383 of 1,785 active managers. Over the last 12 months, quarter after quarter: +27.6% (SMH +87.2%), ranked 754 of 1,360 active managers. Over three years, quarter after quarter: +125.5% (SMH +325.8%), ranked 603 of 784 active managers. Over five years, quarter after quarter: +143.5% (SMH +389.8%), ranked 350 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. Microsoft (MSFT): $2.5B, 6.8M shares, 0.09% of the company, 5.7% of its portfolio (added this quarter); held since Q4 2019 or earlier
  2. Lam Research (LRCX): $2.4B, 5.5M shares, 0.44% of the company, 5.3% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
  3. Alphabet (GOOGL): $2.2B, 6.2M shares, 0.05% of the company, 5.0% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
  4. Apple (AAPL): $2.0B, 6.8M shares, 0.05% of the company, 4.5% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
  5. Meta Platforms (META): $1.9B, 3.4M shares, 0.13% of the company, 4.4% of its portfolio (added this quarter); held since Q4 2019 or earlier
  6. Amazon (AMZN): $1.5B, 6.1M shares, 0.06% of the company, 3.3% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
  7. Texas Instruments (TXN): $1.4B, 4.7M shares, 0.51% of the company, 3.1% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
  8. Broadcom (AVGO): $1.2B, 3.3M shares, 0.07% of the company, 2.8% of its portfolio (trimmed this quarter); held since Q1 2021
  9. KLA (KLAC): $1.2B, 3.9M shares, 0.30% of the company, 2.6% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
  10. NVIDIA (NVDA): $934.8M, 4.7M shares, 0.02% of the company, 2.1% of its portfolio (added this quarter); held since Q2 2023
  11. Salesforce (CRM): $693.7M, 4.4M shares, 0.54% of the company, 1.6% of its portfolio (added this quarter); held since Q3 2020
  12. Accenture (ACN): $495.8M, 4.0M shares, 0.66% of the company, 1.1% of its portfolio (added this quarter); held since Q4 2019 or earlier
  13. Synopsys (SNPS): $429.0M, 961,706 shares, 0.50% of the company, 0.97% of its portfolio (added this quarter); held since Q1 2026
  14. ASML (ASML): $302.4M, 151,987 shares, 0.04% of the company, 0.68% of its portfolio (trimmed this quarter); held since Q3 2024
  15. TSMC (TSM): $157.4M, 329,546 shares, 0.01% of the company, 0.35% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier

By sector

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