MAIRS & POWER INC is an institutional investment manager that files quarterly 13F reports with the SEC. As of Q2 2026, the fund manages $10.9B in reported equity holdings across 254 positions. The largest holdings are NVDA (8.6%), MSFT (6.7%), AMZN (5.7%), GOOGL (5.5%), LLY (3.5%). The portfolio is concentrated in Other (90.4%), Financial Services (2.9%), Technology (2.4%). Data sourced from SEC EDGAR 13F filings (CIK 1070134).