Cintas Corporation
US ˙ NasdaqGS ˙ US1729081059

SecurityCTAS / Cintas Corporation
InstitutionMairs & Power Inc
Latest Disclosed Ownership22,438 shares
Latest Disclosed Value $ 3,795,163
Mairs & Power Inc reports 14.38% increase in ownership of CTAS / Cintas Corporation

On May 13, 2026 - Mairs & Power Inc filed a 13F-HR form disclosing ownership of 22,438 shares of Cintas Corporation (US:CTAS) valued at $3,795,163 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 19,617 shares of Cintas Corporation. This represents a change in shares of 14.38% during the quarter. The current value of the position is $3,920,367 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F CINTAS COM 172908105 22,438 2,821 14.38 3,795 2.87 0.0388
2026-02-17 2025-12-31 13F CINTAS COM 172908105 19,617 1,379 7.56 3,689 -1.44 0.0355
2025-11-14 2025-09-30 13F CINTAS COM 172908105 18,238 585 3.31 3,744 -4.86 0.0352
2025-08-14 2025-06-30 13F CINTAS COM 172908105 17,653 849 5.05 3,934 13.93 0.0388
2025-05-15 2025-03-31 13F CINTAS COM 172908105 16,804 1,884 12.63 3,454 26.72 0.0359
2025-02-14 2024-12-31 13F CINTAS COM 172908105 14,920 400 2.75 2,726 -8.83 0.0264
2024-11-14 2024-09-30 13F CINTAS COM 172908105 14,520 10,746 284.74 2,989 13.13 0.0281
2024-08-14 2024-06-30 13F CINTAS COM 172908105 3,774 0 0.00 2,643 1.93 0.0255
2024-05-15 2024-03-31 13F CINTAS COM 172908105 3,774 -35 -0.92 2,593 12.94 0.0251
2024-02-14 2023-12-31 13F CINTAS COM 172908105 3,809 0 0.00 2,296 25.27 0.0242
2023-11-14 2023-09-30 13F CINTAS COM 172908105 3,809 -191 -4.78 1,832 -7.85 0.0215
2023-08-14 2023-06-30 13F CINTAS COM 172908105 4,000 -150 -3.61 1,988 3.54 0.0216
2023-05-15 2023-03-31 13F CINTAS COM 172908105 4,150 290 7.51 1,920 10.15 0.0222
2023-02-14 2022-12-31 13F CINTAS COM 172908105 3,860 0 0.00 1,743 16.36 0.0210
2022-11-14 2022-09-30 13F CINTAS COM 172908105 3,860 15 0.39 1,498 4.32 0.0189
2022-08-15 2022-06-30 13F CINTAS COM 172908105 3,845 0 0.00 1,436 -12.22 0.0172
2022-05-16 2022-03-31 13F CINTAS COM 172908105 3,845 -105 -2.66 1,636 -6.57 0.0165
2022-02-14 2021-12-31 13F CINTAS COM 172908105 3,950 -9 -0.23 1,751 16.19 0.0162
2021-11-15 2021-09-30 13F CINTAS COM 172908105 3,959 0 0.00 1,507 -0.33 0.0151
2021-08-16 2021-06-30 13F CINTAS COM 172908105 3,959 -50 -1.25 1,512 10.53 0.0149
2021-05-14 2021-03-31 13F CINTAS COM 172908105 4,009 0 0.00 1,368 -3.46 0.0144
2021-02-16 2020-12-31 13F CINTAS COM 172908105 4,009 0 0.00 1,417 6.22 0.0157
2020-11-16 2020-09-30 13F CINTAS COM 172908105 4,009 25 0.63 1,334 25.73 0.0167
2020-08-14 2020-06-30 13F CINTAS COM 172908105 3,984 3,984 1,061 0.0139
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.