GREAT LAKES ADVISORS, LLC

GREAT LAKES ADVISORS, LLC declares $3.7B in 99 of the 230 AI and semiconductor companies tracked on Silicon Floor, as of Jun 30, 2026 (Form 13F): 28.0% of its $13.1B 13F portfolio. Largest positions: Amazon (0.02% of the company) and Apple (0.01% of the company). Over time: $3.7B in 99 of these companies for Q2 2026, against $552.9M in 49 for Q4 2019 (13F values as filed). From Mar 31, 2026 to Jun 30, 2026, it bought $890.0M and sold $937.1M of these stocks, at the quarter's prices: a net sale of $47.1M; 8 new positions and 2 sold out.

Performance of its AI picks

The AI-stock portfolio GREAT LAKES ADVISORS, LLC declared for Q2 2026 (Form 13F), held unchanged, returned +2.8% in Q3 2026 (SMH -7.1%), ranked 1038 of 1,783 active managers. Over the last 12 months, quarter after quarter: +54.8% (SMH +87.2%), ranked 139 of 1,359 active managers. Over three years, quarter after quarter: +197.0% (SMH +325.8%), ranked 110 of 783 active managers. Over five years, quarter after quarter: +223.9% (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. Amazon (AMZN) — $521.4M: 2.2M shares, 0.02% of the company, 4.0% of its portfolio (added this quarter); held since Q4 2019 or earlier
2. Apple (AAPL) — $485.0M: 1.7M shares, 0.01% of the company, 3.7% of its portfolio (added this quarter); held since Q4 2019 or earlier
3. Microsoft (MSFT) — $370.8M: 994,052 shares, 0.01% of the company, 2.8% of its portfolio (added this quarter); held since Q4 2019 or earlier
4. Alphabet (GOOGL) — $313.0M: 878,250 shares, 0.01% of the company, 2.4% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
5. NVIDIA (NVDA) — $193.3M: 965,969 shares, 0.00% of the company, 1.5% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
6. Broadcom (AVGO) — $174.5M: 461,967 shares, 0.01% of the company, 1.3% of its portfolio (added this quarter); held since Q4 2019 or earlier
7. Micron (MU) — $173.7M: 150,507 shares, 0.01% of the company, 1.3% of its portfolio (trimmed this quarter); held since Q1 2023
8. Quanta Services (PWR) — $171.9M: 238,777 shares, 0.16% of the company, 1.3% of its portfolio (trimmed this quarter); held since Q1 2023
9. Cisco (CSCO) — $169.5M: 1.4M shares, 0.04% of the company, 1.3% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
10. Meta Platforms (META) — $139.7M: 248,025 shares, 0.01% of the company, 1.1% of its portfolio (added this quarter); held since Q4 2019 or earlier
11. Duke Energy (DUK) — $112.2M: 886,332 shares, 0.11% of the company, 0.85% of its portfolio (added this quarter); held since Q1 2023
12. American Tower (AMT) — $77.0M: 470,536 shares, 0.10% of the company, 0.59% of its portfolio (added this quarter); held since Q4 2019 or earlier
13. Qnity Electronics (Q) — $63.6M: 389,578 shares, 0.19% of the company, 0.48% of its portfolio (trimmed this quarter); held since Q4 2025
14. NextEra Energy (NEE) — $62.8M: 715,249 shares, 0.03% of the company, 0.48% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
15. Constellation Energy (CEG) — $58.9M: 237,243 shares, 0.07% of the company, 0.45% of its portfolio (added this quarter); held since Q1 2022

By sector

• Cloud & AI giants — $1.8B, 50% of its AI holdings, 5 companies
• Power, electrical & cooling — $590.7M, 16% of its AI holdings, 29 companies
• Chips & compute — $463.8M, 13% of its AI holdings, 13 companies
• Memory & storage — $230.4M, 6% of its AI holdings, 5 companies
• Interconnect — $201.6M, 5% of its AI holdings, 6 companies
• Equipment & test — $167.0M, 5% of its AI holdings, 8 companies
• Neoclouds & data centers — $87.8M, 2% of its AI holdings, 6 companies
• AI software — $55.4M, 2% of its AI holdings, 14 companies
• Servers & systems — $37.5M, 1% of its AI holdings, 9 companies
• Optics — $15.4M, 0% of its AI holdings, 4 companies

Biggest changes this quarter

• trimmed Micron (MU): -$375.9M at the quarter's price
• added to Apple (AAPL): +$359.4M at the quarter's price
• added to Amazon (AMZN): +$231.2M at the quarter's price
• trimmed Alphabet (GOOGL): -$190.4M at the quarter's price
• added to Microsoft (MSFT): +$188.6M at the quarter's price
• trimmed GE Vernova (GEV): -$133.9M at the quarter's price
• added to Constellation Energy (CEG): +$58.4M at the quarter's price
• trimmed Sandisk (SNDK): -$41.7M at the quarter's price
• trimmed Cisco (CSCO): -$27.3M at the quarter's price
• trimmed Sterling Infrastructure (STRL): -$21.7M at the quarter's price

Other holders of this size

• Allen Investment Management, LLC — $3.7B in 36 of these companies
• Quilter Plc — $3.7B in 27 of these companies
• REGIONS FINANCIAL CORP — $3.7B in 100 of these companies
• Circle Wealth Management, LLC — $3.7B in 57 of these companies
• Elo Mutual Pension Insurance Co — $3.7B in 85 of these companies
• Beacon Pointe Advisors, LLC — $3.7B in 132 of these companies
• Optiver Holding B.V. — $3.7B in 102 of these companies
• HARVARD MANAGEMENT CO INC — $3.8B in 10 of these companies

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