Q2 2026 · SEC CIK 0001070134
Mairs & Power Funds portfolio
SuperinvestorMutual fund managerMairs & Power Inc filed on 2026-08-14. Open SEC filings ↗
- Reported 13F value
- $10.9B
- Reported positions
- 254
- Eligible equities
- 206
- Holdings vs S&P 500, 3 years
- -2.5 pts
Average holding period of the top positions: 7.8 yrs. Holdings vs the S&P 500 over 1 and 5 years: -1.5 pts, -2.0 pts.
In its Q2 2026 13F, filed 2026-08-14, Mairs & Power Inc reported 254 positions worth $10.9B. Its largest holdings were NVIDIA CORPORATION (NVDA, 8.6%), MICROSOFT CORP (MSFT, 6.7%), AMAZON COM INC (AMZN, 5.7%). Over the last 3 years its top holdings ran 2.5 points a year behind the S&P 500.
Reported holdings in the Q2 2026 13F.
The portfolio weight uses the full reported share-portfolio denominator. Weight changes compare this 13F with the one before it; price moves also change weights, so these are not trade labels. “New” means the position was not in the previous 13F at all; “—” marks a small position the earlier filing data does not cover.
What Mairs & Power Funds bought and sold in Q2 2026, against Q1 2026.
New positions
Q1 2026's filing was too long to tell new positions apart.
Added to
- WM Waste Mgmt Inc Del+48.4% shares
- ISRG Intuitive Surgical Inc+46.6% shares
- WK Workiva Inc+15.9% shares
- PANW Palo Alto Networks Inc+12.6% shares
- TRV Travelers Companies Inc+9.9% shares
- AMP Ameriprise Finl Inc+8.6% shares
- CGNX Cognex Corp+6.9% shares
- FISV Fiserv Inc+6.5% shares
Reduced
- WFC Wells Fargo & Co-36.1% shares
- JNJ Johnson & Johnson-26.8% shares
- UNH Unitedhealth Group Inc-24.4% shares
- LFUS Littelfuse Inc-16.9% shares
- TNC Tennant Co-15.1% shares
- JPM Jpmorgan Chase & Co-12.4% shares
- CHRW C H Robinson Worldwide in-9.1% shares
- ROK Rockwell Automation Inc-9.1% shares
Left the top 50
- QCOM Qualcomm Incwas 0.6%
- HON Honeywell Intl. Incwas 0.5%
- PIPR Piper Sandler Companieswas 0.4%
Share counts compared with the Q1 2026 13F; a split also changes share counts. The latest filing lists more than 50 positions, so a position that left the top 50 may still be held.
How the holdings did against the S&P 500.
- 1 year
- +18.2% /yr
- S&P 500 +20.1%
- 3 years
- +17.3% /yr
- S&P 500 +20.4%
- 5 years
- +9.1% /yr
- S&P 500 +11.6%
A portfolio of the filer's 20 largest 13F positions, weighted by value, bought the trading day after each 13F was filed and held until the next one was: what copying this filer could have earned. 13Fs show long US-listed positions only, so this is an estimate of the stock picks, not the fund's reported returns.
Questions about Mairs & Power Funds's portfolio
What stocks does Mairs & Power Funds own?
Mairs & Power Inc's latest 13F, for Q2 2026 and filed Aug 14, 2026, lists 254 positions worth $10.9B. The largest are Nvidia Corporation (NVDA) at 8.6%, Microsoft Corp (MSFT) at 6.7%, Amazon Com Inc (AMZN) at 5.7%, Alphabet Inc (GOOG) at 5.5% and Eli Lilly & Co (LLY) at 3.5%.
What did Mairs & Power Funds buy last quarter?
In Q2 2026, Mairs & Power Inc added Waste Mgmt Inc Del (WM) (+48.4% shares), Intuitive Surgical Inc (ISRG) (+46.6% shares) and Workiva Inc (WK) (+15.9% shares), compared with its Q1 2026 filing.
What did Mairs & Power Funds sell last quarter?
In Q2 2026, Mairs & Power Inc cut from its top 50 Qualcomm Inc (QCOM), cut from its top 50 Honeywell Intl. Inc (HON), cut from its top 50 Piper Sandler Companies (PIPR), Wells Fargo & Co (WFC) (-36.1% shares), Johnson & Johnson (JNJ) (-26.8% shares) and Unitedhealth Group Inc (UNH) (-24.4% shares), compared with its Q1 2026 filing.
How has Mairs & Power Funds's portfolio performed?
A portfolio copying Mairs & Power Inc's 20 largest 13F holdings each quarter, from the day each filing was public, returned +17.3% a year over the last 3 years, against +20.4% for the S&P 500. Over 1 year: +18.2% against +20.1%. Over 5 years: +9.1% a year against +11.6%.
When is Mairs & Power Inc's next 13F filing due?
13F filings are due 45 days after each quarter ends. Mairs & Power Inc's filing for the quarter ending Sep 30, 2026 is due by Nov 14, 2026; this page updates the day after it is published.
How much money does Mairs & Power Inc manage?
Mairs & Power Inc reported $12.1B of regulatory assets under management on its latest SEC Form ADV. Its 13F, which covers only US-listed stocks and options, totals $10.9B.