MAIRS & POWER INC 13F: Quarter-over-Quarter Portfolio Changes
MAIRS & POWER INC reported a disclosed portfolio value of approximately $10.9 billion in its latest SEC Form 13F-HR filing for Q2 2026, up 11.4% quarter on quarter. Over the quarter, the manager initiated 17 new positions, bought more shares in 56 holdings, trimmed 109 holdings, and exited 8 positions.
MAIRS & POWER INC's top buy was a new stake in Gallagher Arthur J & CO (AJG) , equal to 0.7% of the disclosed portfolio. Its top sell was Honeywell International INC (HON) . The manager exited the position completely after it had accounted for 0.5% of the previous portfolio.
New PositionsQ2 2026
Securities disclosed for the first time in Q2 2026 that were not present in the prior 13F-HR filing.
| Company | Ticker | Initial Portfolio Weight | History |
|---|---|---|---|
| GALLAGHER ARTHUR J & CO | AJG | 0.7% | Holders → |
| CME GROUP INC | CME | 0.4% | Holders → |
| HONEYWELL AEROSPACE INC | HONA | 0.2% | Holders → |
| MGE ENERGY INC | MGEE | 0.0% | Holders → |
| ISHARES TR | IWP | 0.0% | Holders → |
| ISHARES TR | IJH | 0.0% | Holders → |
| ISHARES TR | IWR | 0.0% | Holders → |
| ISHARES TR | IWM | 0.0% | Holders → |
| ISHARES TR | IWO | 0.0% | Holders → |
| ISHARES TR | IWS | 0.0% | Holders → |
| LAM RESEARCH CORP | LRCX | 0.0% | Holders → |
| VERTIV HOLDINGS CO | VRT | 0.0% | Holders → |
| MORGAN STANLEY | MS | 0.0% | Holders → |
| REGIONS FINANCIAL CORP NEW | RF | 0.0% | Holders → |
| EVERUS CONSTR GROUP | ECG | 0.0% | Holders → |
| AMETEK INC | AME | 0.0% | Holders → |
| CARRIER GLOBAL CORP | CARR | 0.0% | Holders → |
Top BuysQ2 2026
Showing the top 10 buys among 56 existing positions where the manager bought more shares in Q2 2026. Ranked by portfolio-weight impact, with the percentage of additional shares shown separately.
| Company | Ticker | Portfolio Weight Change | More Shares | History |
|---|---|---|---|---|
| VANGUARD WORLD FD | VGT | +0.0% | +705.4% | Holders → |
| VANGUARD INDEX FDS | VUG | +0.0% | +500.0% | Holders → |
| BENTLEY SYS INC | BSY | +0.2% | +310.8% | Holders → |
| VANGUARD INDEX FDS | VO | +-0.0% | +257.8% | Holders → |
| ALERUS FINL CORP | ALRS | +0.0% | +156.1% | Holders → |
| SPDR GOLD TR | GLD | +0.0% | +145.8% | Holders → |
| ISHARES TR | IVV | +0.0% | +64.9% | Holders → |
| PATRICK INDS INC | PATK | +0.0% | +63.8% | Holders → |
| SPROUTS FMRS MKT INC | SFM | +0.1% | +54.6% | Holders → |
| ZOETIS INC | ZTS | +-0.1% | +54.2% | Holders → |
Top SellsQ2 2026
Showing the top 10 sells among 109 existing positions where the manager sold shares in Q2 2026. Ranked by portfolio-weight impact. Full exits are listed separately.
| Company | Ticker | Portfolio Weight Change | Shares Sold | History |
|---|---|---|---|---|
| SALESFORCE INC | CRM | -0.1% | 94.7% | Holders → |
| STATE STR SPDR S&P 500 ETF T | SPY | -0.1% | 69.5% | Holders → |
| QUALCOMM INC | QCOM | -0.3% | 62.4% | Holders → |
| ORACLE CORP | ORCL | -0.0% | 55.6% | Holders → |
| SYSCO CORP | SYY | -0.0% | 51.1% | Holders → |
| CLEARFIELD INC | CLFD | -0.1% | 47.4% | Holders → |
| BAXTER INTL INC | BAX | -0.0% | 44.4% | Holders → |
| KRAFT HEINZ CO | KHC | -0.0% | 43.6% | Holders → |
| INVESCO EXCHANGE TRADED FD T | RSP | -0.0% | 42.4% | Holders → |
| MICRON TECHNOLOGY INC | MU | 0.0% | 40.8% | Holders → |
Full ExitsQ2 2026
Positions present in the prior 13F-HR filing that no longer appear in Q2 2026.
| Company | Ticker | Last-Reported Portfolio Weight |
|---|---|---|
| HONEYWELL INTERNATIONAL INC | HON | 0.5% |
| UIPATH INC | PATH | 0.0% |
| ISHARES TR | IBTG | 0.0% |
| ULTA BEAUTY INC COM | ULTA | 0.0% |
| SEI INVT CO PA PV $0.01 | SEIC | 0.0% |
| ACCENTURE PLC IRELAND | ACN | 0.0% |
| UNITED THERAPEUTICS CORP DEL | UTHR | 0.0% |
| MURPHY OIL CORP | MUR | 0.0% |
Net Portfolio Value ChangeQ2 2026
- $9.8BPrior quarter
- $10.9BCurrent quarter
- +$1.1BNet delta
- +11.4%% change
Methodology & FAQ
How MAIRS & POWER INC Quarterly Changes Are Computed
All deltas are sourced from sequential SEC Form 13F-HR filings for MAIRS & POWER INC: each row joins the most recent filing against the immediately preceding quarterly filing for the same fund. Share-count changes reflect reported trading activity, while portfolio weights can also move because of market price changes. Portfolio weights are normalized to exclude listed options for comparability. A complete description, including how confidential treatment filings are handled, is documented in the Methodology.
What stocks did MAIRS & POWER INC buy in Q2 2026?
In Q2 2026, MAIRS & POWER INC initiated 17 new positions (GALLAGHER ARTHUR J & CO (AJG), CME GROUP INC (CME), HONEYWELL AEROSPACE INC (HONA), MGE ENERGY INC (MGEE), ISHARES TR (IWP), ISHARES TR (IJH), ISHARES TR (IWR), ISHARES TR (IWM), ISHARES TR (IWO), ISHARES TR (IWS), LAM RESEARCH CORP (LRCX), VERTIV HOLDINGS CO (VRT), MORGAN STANLEY (MS), REGIONS FINANCIAL CORP NEW (RF), EVERUS CONSTR GROUP (ECG), AMETEK INC (AME), CARRIER GLOBAL CORP (CARR)); bought more shares of VANGUARD WORLD FD (VGT), VANGUARD INDEX FDS (VUG), BENTLEY SYS INC (BSY), VANGUARD INDEX FDS (VO), ALERUS FINL CORP (ALRS) (the largest 5 of 56 adds).
What stocks did MAIRS & POWER INC sell in Q2 2026?
In Q2 2026, MAIRS & POWER INC fully sold 8 positions (HONEYWELL INTERNATIONAL INC (HON), UIPATH INC (PATH), ISHARES TR (IBTG), ULTA BEAUTY INC COM (ULTA), SEI INVT CO PA PV $0.01 (SEIC), ACCENTURE PLC IRELAND (ACN), UNITED THERAPEUTICS CORP DEL (UTHR), MURPHY OIL CORP (MUR)); reduced holdings in SALESFORCE INC (CRM), STATE STR SPDR S&P 500 ETF T (SPY), QUALCOMM INC (QCOM), ORACLE CORP (ORCL), SYSCO CORP (SYY) (the largest 5 of 109 reductions).
Which positions did MAIRS & POWER INC initiate in Q2 2026?
MAIRS & POWER INC established 17 new positions in Q2 2026: GALLAGHER ARTHUR J & CO (AJG, 0.7%), CME GROUP INC (CME, 0.4%), HONEYWELL AEROSPACE INC (HONA, 0.2%), MGE ENERGY INC (MGEE, 0.0%), ISHARES TR (IWP, 0.0%), ISHARES TR (IJH, 0.0%), ISHARES TR (IWR, 0.0%), ISHARES TR (IWM, 0.0%), ISHARES TR (IWO, 0.0%), ISHARES TR (IWS, 0.0%), LAM RESEARCH CORP (LRCX, 0.0%), VERTIV HOLDINGS CO (VRT, 0.0%), MORGAN STANLEY (MS, 0.0%), REGIONS FINANCIAL CORP NEW (RF, 0.0%), EVERUS CONSTR GROUP (ECG, 0.0%), AMETEK INC (AME, 0.0%), CARRIER GLOBAL CORP (CARR, 0.0%).
Which existing positions saw the largest allocation increases for MAIRS & POWER INC in Q2 2026?
Of 56 existing positions with share-count increases in Q2 2026, the largest were: VANGUARD WORLD FD (VGT, +0.0% weight, +705.4% shares), VANGUARD INDEX FDS (VUG, +0.0% weight, +500.0% shares), BENTLEY SYS INC (BSY, +0.2% weight, +310.8% shares), VANGUARD INDEX FDS (VO, +-0.0% weight, +257.8% shares), ALERUS FINL CORP (ALRS, +0.0% weight, +156.1% shares), SPDR GOLD TR (GLD, +0.0% weight, +145.8% shares), ISHARES TR (IVV, +0.0% weight, +64.9% shares), PATRICK INDS INC (PATK, +0.0% weight, +63.8% shares), SPROUTS FMRS MKT INC (SFM, +0.1% weight, +54.6% shares), ZOETIS INC (ZTS, +-0.1% weight, +54.2% shares).
Which positions did MAIRS & POWER INC fully exit in Q2 2026?
MAIRS & POWER INC fully exited 8 positions in Q2 2026: HONEYWELL INTERNATIONAL INC (HON, last-reported weight 0.5%), UIPATH INC (PATH, last-reported weight 0.0%), ISHARES TR (IBTG, last-reported weight 0.0%), ULTA BEAUTY INC COM (ULTA, last-reported weight 0.0%), SEI INVT CO PA PV $0.01 (SEIC, last-reported weight 0.0%), ACCENTURE PLC IRELAND (ACN, last-reported weight 0.0%), UNITED THERAPEUTICS CORP DEL (UTHR, last-reported weight 0.0%), MURPHY OIL CORP (MUR, last-reported weight 0.0%).
Which existing positions saw the largest allocation reductions for MAIRS & POWER INC in Q2 2026?
Of 109 existing positions with share-count reductions in Q2 2026, the largest were: SALESFORCE INC (CRM, -0.1% weight, -94.7% shares), STATE STR SPDR S&P 500 ETF T (SPY, -0.1% weight, -69.5% shares), QUALCOMM INC (QCOM, -0.3% weight, -62.4% shares), ORACLE CORP (ORCL, -0.0% weight, -55.6% shares), SYSCO CORP (SYY, -0.0% weight, -51.1% shares), CLEARFIELD INC (CLFD, -0.1% weight, -47.4% shares), BAXTER INTL INC (BAX, -0.0% weight, -44.4% shares), KRAFT HEINZ CO (KHC, -0.0% weight, -43.6% shares), INVESCO EXCHANGE TRADED FD T (RSP, -0.0% weight, -42.4% shares), MICRON TECHNOLOGY INC (MU, 0.0% weight, -40.8% shares).
Do quarter-over-quarter 13F allocation changes constitute explicit trading signals?
No. Quarter-over-quarter changes reflect a combination of active trading and market price movement. A weight increase can result from price appreciation alone, without the manager adding shares. Share-count delta is the cleaner indicator of explicit trading activity. All deltas on this page are sourced from sequential SEC Form 13F-HR filings.