FIRST MANHATTAN CO. LLC.

FIRST MANHATTAN CO. LLC. declares $13.4B in 81 of the 230 AI and semiconductor companies tracked on Silicon Floor, as of Jun 30, 2026 (Form 13F): 34.1% of its $39.2B 13F portfolio. Largest positions: Alphabet (0.04% of the company) and Microsoft (0.06% of the company). Over time: $13.4B in 81 of these companies for Q2 2026, against $2.9B in 67 for Q4 2019 (13F values as filed). From Mar 31, 2026 to Jun 30, 2026, it bought $130.5M and sold $817.2M of these stocks, at the quarter's prices: a net sale of $686.7M; 13 new positions and 4 sold out.

Performance of its AI picks

The AI-stock portfolio FIRST MANHATTAN CO. LLC. declared for Q2 2026 (Form 13F), held unchanged, returned +1.7% in Q3 2026 (SMH -7.1%), ranked 1183 of 1,785 active managers. Over the last 12 months, quarter after quarter: +24.1% (SMH +87.2%), ranked 978 of 1,360 active managers. Over three years, quarter after quarter: +121.6% (SMH +325.8%), ranked 622 of 784 active managers. Over five years, quarter after quarter: +127.7% (SMH +389.8%), ranked 421 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): $1.9B, 5.4M shares, 0.04% of the company, 4.9% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
  2. Microsoft (MSFT): $1.6B, 4.3M shares, 0.06% of the company, 4.1% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
  3. ASML (ASML): $1.4B, 718,408 shares, 0.19% of the company, 3.6% of its portfolio (trimmed this quarter); held since Q4 2020
  4. Apple (AAPL): $1.4B, 4.9M shares, 0.03% of the company, 3.6% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
  5. Applied Materials (AMAT): $896.8M, 1.2M shares, 0.16% of the company, 2.3% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
  6. Broadcom (AVGO): $812.3M, 2.2M shares, 0.04% of the company, 2.1% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
  7. Amazon (AMZN): $777.6M, 3.3M shares, 0.03% of the company, 2.0% of its portfolio (added this quarter); held since Q4 2019 or earlier
  8. Intel (INTC): $647.7M, 4.6M shares, 0.09% of the company, 1.7% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
  9. LandBridge (LB): $561.2M, 7.1M shares, 9.2% of the company, 1.4% of its portfolio (added this quarter); held since Q2 2024
  10. Oracle (ORCL): $552.9M, 3.8M shares, 0.12% of the company, 1.4% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
  11. NVIDIA (NVDA): $506.6M, 2.5M shares, 0.01% of the company, 1.3% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
  12. Texas Pacific Land (TPL): $466.0M, 1.1M shares, 1.5% of the company, 1.2% of its portfolio (added this quarter); held since Q4 2019 or earlier
  13. Synopsys (SNPS): $383.2M, 859,147 shares, 0.45% of the company, 0.98% of its portfolio (added this quarter); held since Q1 2020
  14. GE Vernova (GEV): $318.0M, 270,578 shares, 0.10% of the company, 0.81% of its portfolio (trimmed this quarter); held since Q2 2024
  15. Salesforce (CRM): $273.4M, 1.7M shares, 0.21% of the company, 0.70% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier

By sector

Biggest changes this quarter

Schedule 13D/G declarations

  • LandBridge (LB): 13G filed Nov 7, 2025: 6.7M shares as of Oct 31, 2025, 26.3% as declared
  • LandBridge (LB): 13G filed Sep 8, 2025: 5.0M shares as of Aug 29, 2025, 19.7% as declared

Other holders of this size

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