Woodline Partners LP

Woodline Partners LP declares $9.8B in 121 of the 230 AI and semiconductor companies tracked on Silicon Floor, as of Jun 30, 2026 (Form 13F): 30.2% of its $32.4B 13F portfolio. Largest positions: NVIDIA (0.02% of the company) and Apple (0.02% of the company). Over time: $9.8B in 121 of these companies for Q2 2026, against $745.5M in 20 for Q4 2019 (13F values as filed). From Mar 31, 2026 to Jun 30, 2026, it bought $2.1B and sold $1.9B of these stocks, at the quarter's prices: a net purchase of $190.2M; 11 new positions and 9 sold out.

Performance of its AI picks

The AI-stock portfolio Woodline Partners LP declared for Q2 2026 (Form 13F), held unchanged, returned +3.8% in Q3 2026 (SMH -7.1%), ranked 879 of 1,785 active managers. Over the last 12 months, quarter after quarter: +42.1% (SMH +87.2%), ranked 251 of 1,360 active managers. Over three years, quarter after quarter: +160.7% (SMH +325.8%), ranked 229 of 784 active managers. Over five years, quarter after quarter: +187.0% (SMH +389.8%), ranked 114 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. NVIDIA (NVDA): $1.1B, 5.4M shares, 0.02% of the company, 3.3% of its portfolio (added this quarter); held since Q3 2022
2. Apple (AAPL): $927.5M, 3.2M shares, 0.02% of the company, 2.9% of its portfolio (added this quarter); held since Q2 2023
3. Alphabet (GOOGL): $758.8M, 2.1M shares, 0.02% of the company, 2.3% of its portfolio (trimmed this quarter); held since Q1 2024
4. Microsoft (MSFT): $606.8M, 1.6M shares, 0.02% of the company, 1.9% of its portfolio (added this quarter); held since Q1 2024
5. Amazon (AMZN): $588.4M, 2.5M shares, 0.02% of the company, 1.8% of its portfolio (trimmed this quarter); held since Q4 2023
6. Meta Platforms (META): $463.3M, 822,510 shares, 0.03% of the company, 1.4% of its portfolio (added this quarter); held since Q3 2022
7. Broadcom (AVGO): $444.5M, 1.2M shares, 0.02% of the company, 1.4% of its portfolio (added this quarter); held since Q1 2024
8. Micron (MU): $317.1M, 274,693 shares, 0.02% of the company, 0.98% of its portfolio (trimmed this quarter); held since Q3 2024
9. Microchip (MCHP): $241.7M, 2.6M shares, 0.49% of the company, 0.75% of its portfolio (added this quarter); held since Q4 2025
10. Lumentum (LITE): $189.3M, 220,615 shares, 0.24% of the company, 0.59% of its portfolio (added this quarter); held since Q1 2026
11. AMD (AMD): $188.9M, 325,139 shares, 0.02% of the company, 0.58% of its portfolio (trimmed this quarter); held since Q2 2024
12. Lam Research (LRCX): $167.7M, 386,934 shares, 0.03% of the company, 0.52% of its portfolio (added this quarter); held since Q3 2025
13. Crown Castle (CCI): $163.4M, 2.2M shares, 0.51% of the company, 0.51% of its portfolio (added this quarter); held since Q4 2024
14. Johnson Controls (JCI): $161.7M, 1.1M shares, 0.18% of the company, 0.50% of its portfolio (added this quarter); held since Q4 2021
15. Intel (INTC): $151.1M, 1.1M shares, 0.02% of the company, 0.47% of its portfolio (added this quarter); held since Q1 2024

By sector

• Cloud & AI giants: $3.4B, 35% of its AI holdings, 6 companies
• Chips & compute: $2.6B, 26% of its AI holdings, 22 companies
• Power, electrical & cooling: $874.1M, 9% of its AI holdings, 30 companies
• AI software: $752.4M, 8% of its AI holdings, 18 companies
• Equipment & test: $510.5M, 5% of its AI holdings, 11 companies
• Neoclouds & data centers: $476.5M, 5% of its AI holdings, 11 companies
• Memory & storage: $467.0M, 5% of its AI holdings, 5 companies
• Optics: $266.0M, 3% of its AI holdings, 5 companies
• Interconnect: $261.9M, 3% of its AI holdings, 6 companies
• Servers & systems: $166.2M, 2% of its AI holdings, 7 companies

Biggest changes this quarter

• trimmed Applied Materials (AMAT): -$258.4M at the quarter's price
• added to Meta Platforms (META): +$240.7M at the quarter's price
• trimmed Texas Instruments (TXN): -$231.0M at the quarter's price
• added to Microchip (MCHP): +$209.1M at the quarter's price
• added to Lumentum (LITE): +$177.3M at the quarter's price
• trimmed Datadog (DDOG): -$168.9M at the quarter's price
• trimmed Seagate (STX): -$147.4M at the quarter's price
• added to NVIDIA (NVDA): +$117.1M at the quarter's price
• added to ASML (ASML): +$111.7M at the quarter's price
• added to Broadcom (AVGO): +$102.4M at the quarter's price

Schedule 13D/G declarations

• Vishay (VSH): 13G filed May 15, 2026: 5.0M shares as of Mar 31, 2026, 4.0% as declared
• Vishay (VSH): 13G filed Feb 17, 2026: 10.1M shares as of Dec 31, 2025, 8.2% as declared
• Vishay (VSH): 13G filed Nov 14, 2025: 6.8M shares as of Sep 30, 2025, 5.5% as declared

Other holders of this size

• Czech National Bank: $9.8B in 93 of these companies
• Harel Insurance Investments & Financial Services Ltd.: $9.8B in 85 of these companies
• Atreides Management, LP: $9.7B in 22 of these companies
• Alyeska Investment Group, L.P.: $10.0B in 80 of these companies
• Newlands Management Operations LLC: $9.7B in 5 of these companies
• NISSAY ASSET MANAGEMENT CORP /JAPAN: $10.0B in 118 of these companies
• ARIZONA STATE RETIREMENT SYSTEM: $9.7B in 195 of these companies
• WEALTH ENHANCEMENT ADVISORY SERVICES, LLC: $10.2B in 161 of these companies

Follow Woodline Partners LP's SEC filings (Atom feed)

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