ARK Investment Management LLC

New 13F: Q3 2026

ARK Investment Management LLC filed its 13F for the quarter ended Sep 30, 2026 on Nov 13, 2026: $5.6B in AI and semiconductor stocks; $1.5B bought and $711.9M sold against its previous quarter, at the quarter's prices.

ARK Investment Management LLC declares $5.3B in 30 of the 230 AI and semiconductor companies tracked on Silicon Floor, as of Jun 30, 2026 (Form 13F): 34.6% of its $15.4B 13F portfolio. Largest positions: AMD (0.09% of the company) and SpaceX (0.02% of the company). Over time: $5.3B in 30 of these companies for Q2 2026, against $296.2M in 20 for Q4 2019 (13F values as filed). From Mar 31, 2026 to Jun 30, 2026, it bought $457.7M and sold $1.2B of these stocks, at the quarter's prices: a net sale of $749.5M; 1 new position and 2 sold out.

Performance of its AI picks

The AI-stock portfolio ARK Investment Management LLC declared for Q2 2026 (Form 13F), held unchanged, returned +7.0% in Q3 2026 (SMH -7.1%), ranked 324 of 1,785 active managers. Over the last 12 months, quarter after quarter: +60.5% (SMH +87.2%), ranked 114 of 1,360 active managers. Over three years, quarter after quarter: +331.0% (SMH +325.8%). Over five years, quarter after quarter: +124.1% (SMH +389.8%). 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. AMD (AMD): $822.8M, 1.4M shares, 0.09% of the company, 5.3% of its portfolio (trimmed this quarter); held since Q1 2023
  2. SpaceX (SPCX): $765.1M, 4.5M shares, 0.02% of the company, 5.0% of its portfolio
  3. Tempus AI (TEM): $580.6M, 10.0M shares, 5.5% of the company, 3.8% of its portfolio (added this quarter); held since Q2 2024
  4. Alphabet (GOOGL): $418.7M, 1.2M shares, 0.01% of the company, 2.7% of its portfolio (added this quarter); held since Q4 2019 or earlier
  5. Amazon (AMZN): $379.2M, 1.6M shares, 0.01% of the company, 2.5% of its portfolio (added this quarter); held since Q4 2019 or earlier
  6. Palantir (PLTR): $374.8M, 3.2M shares, 0.13% of the company, 2.4% of its portfolio (added this quarter); held since Q2 2023
  7. Teradyne (TER): $312.0M, 644,782 shares, 0.41% of the company, 2.0% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
  8. NVIDIA (NVDA): $276.4M, 1.4M shares, 0.01% of the company, 1.8% of its portfolio (added this quarter); held since Q4 2019 or earlier
  9. CoreWeave (CRWV): $264.5M, 2.7M shares, 0.48% of the company, 1.7% of its portfolio (added this quarter); held since Q1 2025
  10. TSMC (TSM): $230.3M, 482,286 shares, 0.01% of the company, 1.5% of its portfolio (trimmed this quarter); held since Q2 2023
  11. Cerebras Systems (CBRS): $169.0M, 764,613 shares, 0.31% of the company, 1.1% of its portfolio
  12. Broadcom (AVGO): $153.8M, 407,202 shares, 0.01% of the company, 1.00% of its portfolio (trimmed this quarter); held since Q1 2026
  13. Meta Platforms (META): $134.6M, 238,973 shares, 0.01% of the company, 0.87% of its portfolio (added this quarter); held since Q2 2023
  14. BWX Technologies (BWXT): $107.0M, 549,881 shares, 0.60% of the company, 0.69% of its portfolio (trimmed this quarter); held since Q4 2024
  15. Snowflake (SNOW): $68.6M, 269,539 shares, 0.08% of the company, 0.45% of its portfolio (new position this quarter)

By sector

Biggest changes this quarter

Schedule 13D/G declarations

  • Tempus AI (TEM): 13G filed Nov 6, 2026: 8.6M shares as of Oct 31, 2026, 4.9% as declared
  • Tempus AI (TEM): 13G filed Mar 6, 2026: 9.4M shares as of Feb 28, 2026, 5.4% as declared
  • UiPath (PATH): 13G filed Jan 10, 2025: 20.9M shares as of Sep 30, 2024, 4.5% as declared

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