Mairs and Power's FAST Position Overview
Mairs and Power (via Mairs & Power INC) currently holds 4.67 M shares of Fastenal Company (FAST) worth $187.31 M, representing 1.80% of the portfolio. First purchased in 2013-Q2, this long-term strategic position has been held for 51 quarters.
Based on 13F filings since 2013, Mairs and Power has maintained a long-term strategic position in FAST, representing a significant commitment to this investment thesis. Largest addition occurred in Q1 2014, adding 1.88 M shares. Largest reduction occurred in Q3 2020, reducing 1.08 M shares.
Analysis based on 13F filings available since 2013 Q2
Mairs and Power's Fastenal Company (FAST) Holding Value Over Time
Track share changes against reported price movement
Quarterly Fastenal Company (FAST) Trades by Mairs and Power
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q4 2025 | -51,537 | Reduce 1.09% | 4.67 M | $40.13 |
| Q3 2025 | -653,723 | Reduce 12.17% | 4.72 M | $49.04 |
| Q2 2025 | -6,951 | Reduce 0.13% | 5.37 M | $42.00 |
| Q1 2025 | -39,152 | Reduce 0.72% | 5.38 M | $38.78 |
| Q4 2024 | -44,998 | Reduce 0.82% | 5.42 M | $35.96 |
| Q3 2024 | +137,234 | Add 2.58% | 5.46 M | $35.71 |
| Q2 2024 | -57,566 | Reduce 1.07% | 5.33 M | $31.42 |
| Q1 2024 | -997,002 | Reduce 15.62% | 5.38 M | $38.57 |
| Q4 2023 | -86,592 | Reduce 1.34% | 6.38 M | $32.39 |
| Q3 2023 | -34,882 | Reduce 0.54% | 6.47 M | $27.32 |
| Q2 2023 | +89,310 | Add 1.39% | 6.5 M | $29.50 |
| Q1 2023 | +486,440 | Add 8.21% | 6.41 M | $26.97 |
| Q4 2022 | -45,820 | Reduce 0.77% | 5.93 M | $23.66 |
| Q3 2022 | -56,512 | Reduce 0.94% | 5.97 M | $23.02 |
| Q2 2022 | -447,806 | Reduce 6.91% | 6.03 M | $24.96 |
| Q1 2022 | -164,986 | Reduce 2.48% | 6.48 M | $29.70 |
| Q4 2021 | -162,146 | Reduce 2.38% | 6.64 M | $32.03 |
| Q3 2021 | -234,180 | Reduce 3.33% | 6.8 M | $25.80 |
| Q2 2021 | -87,236 | Reduce 1.22% | 7.04 M | $26.00 |
| Q1 2021 | -122,178 | Reduce 1.69% | 7.13 M | $25.14 |
| Q4 2020 | -47,724 | Reduce 0.65% | 7.25 M | $24.42 |
| Q3 2020 | -1.08 M | Reduce 12.88% | 7.3 M | $22.54 |
| Q2 2020 | -1.06 M | Reduce 11.23% | 8.37 M | $21.42 |
| Q1 2020 | -961,796 | Reduce 9.25% | 9.43 M | $15.63 |
| Q4 2019 | -64,890 | Reduce 0.62% | 10.39 M | $18.47 |
| Q3 2019 | -38,344 | Reduce 0.37% | 10.46 M | $16.34 |
| Q2 2019 | -701,872 | Reduce 6.27% | 10.5 M | $16.29 |
| Q1 2019 | -555,072 | Reduce 4.72% | 11.2 M | $16.08 |
| Q4 2018 | +24,376 | Add 0.21% | 11.75 M | $13.07 |
| Q3 2018 | -45,268 | Reduce 0.38% | 11.73 M | $14.50 |
| Q2 2018 | -233,316 | Reduce 1.94% | 11.78 M | $12.03 |
| Q1 2018 | +96,272 | Add 0.81% | 12.01 M | $13.65 |
| Q4 2017 | +428,192 | Add 3.73% | 11.91 M | $13.67 |
| Q3 2017 | +1.77 M | Add 18.22% | 11.48 M | $11.39 |
| Q2 2017 | +1.36 M | Add 16.31% | 9.71 M | $10.88 |
| Q1 2017 | -369,520 | Reduce 4.24% | 8.35 M | $12.87 |
| Q4 2016 | -29,504 | Reduce 0.34% | 8.72 M | $11.74 |
| Q3 2016 | -30,420 | Reduce 0.35% | 8.75 M | $10.45 |
| Q2 2016 | -55,616 | Reduce 0.63% | 8.78 M | $11.10 |
| Q1 2016 | +25,696 | Add 0.29% | 8.84 M | $12.25 |
| Q4 2015 | +5,420 | Add 0.06% | 8.81 M | $10.20 |
| Q3 2015 | +128,464 | Add 1.48% | 8.81 M | $9.15 |
| Q2 2015 | +4,764 | Add 0.05% | 8.68 M | $10.54 |
| Q1 2015 | +137,176 | Add 1.61% | 8.67 M | $10.36 |
| Q4 2014 | +479,204 | Add 5.95% | 8.54 M | $11.89 |
| Q3 2014 | +710,648 | Add 9.67% | 8.06 M | $11.23 |
| Q2 2014 | -16,392 | Reduce 0.22% | 7.35 M | $12.37 |
| Q1 2014 | +1.88 M | Add 34.22% | 7.36 M | $12.33 |
| Q4 2013 | +422,416 | Add 8.34% | 5.49 M | $11.88 |
| Q3 2013 | +468,268 | Add 10.19% | 5.06 M | $12.57 |
| Q2 2013 | +4.59 M | Add 0.00% | 4.59 M | $11.45 |
Mairs and Power's Fastenal Company Investment FAQs
Mairs and Power first purchased Fastenal Company (FAST) in Q2 2013, acquiring 4,594,412 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Mairs and Power has held Fastenal Company (FAST) for 51 quarters since Q2 2013.
Mairs and Power's largest addition to Fastenal Company (FAST) was in Q2 2013, adding 4,594,412 shares worth $52.6 M.
According to the latest 13F filing for Q4 2025, Mairs and Power's firm, Mairs & Power INC, owns 4,667,499 shares of Fastenal Company (FAST), valued at approximately $187.31 M.
As of the Q4 2025 filing, Fastenal Company (FAST) represents approximately 1.80% of Mairs and Power's publicly disclosed stock portfolio, making it one of their key holdings.
Mairs and Power's peak holding in Fastenal Company (FAST) was 12,008,816 shares, as reported at the end of Q1 2018.