Mairs and Power's COST Position Overview
Mairs and Power (via Mairs & Power INC) currently holds 2,933 shares of Costco Wholesale Corporation (COST) worth $2.53 M, representing 0.02% 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 COST, representing a significant commitment to this investment thesis. Largest addition occurred in Q4 2023, adding 1,486 shares. Largest reduction occurred in Q2 2024, reducing 845 shares.
Analysis based on 13F filings available since 2013 Q2
Mairs and Power's Costco Wholesale Corporation (COST) Holding Value Over Time
Track share changes against reported price movement
Quarterly Costco Wholesale Corporation (COST) Trades by Mairs and Power
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q4 2025 | -288 | Reduce 8.94% | 2,933 | $862.34 |
| Q3 2025 | +33 | Add 1.04% | 3,221 | $925.63 |
| Q2 2025 | +488 | Add 18.07% | 3,188 | $989.94 |
| Q1 2025 | -39 | Reduce 1.42% | 2,700 | $945.78 |
| Q4 2024 | -358 | Reduce 11.56% | 2,739 | $916.27 |
| Q3 2024 | -637 | Reduce 17.06% | 3,097 | $886.52 |
| Q2 2024 | -845 | Reduce 18.45% | 3,734 | $849.99 |
| Q1 2024 | -357 | Reduce 7.23% | 4,579 | $732.63 |
| Q4 2023 | +1,486 | Add 43.07% | 4,936 | $660.08 |
| Q3 2023 | -175 | Reduce 4.83% | 3,450 | $564.96 |
| Q2 2023 | +21 | Add 0.58% | 3,625 | $538.38 |
| Q1 2023 | +473 | Add 15.11% | 3,604 | $496.87 |
| Q3 2022 | -45 | Reduce 1.42% | 3,131 | $472.37 |
| Q2 2022 | -2 | Reduce 0.06% | 3,176 | $479.22 |
| Q1 2022 | +4 | Add 0.13% | 3,178 | $575.83 |
| Q4 2021 | +518 | Add 19.50% | 3,174 | $567.74 |
| Q3 2021 | -581 | Reduce 17.95% | 2,656 | $449.17 |
| Q2 2021 | -81 | Reduce 2.44% | 3,237 | $395.74 |
| Q1 2021 | -114 | Reduce 3.32% | 3,318 | $352.62 |
| Q4 2020 | +80 | Add 2.39% | 3,432 | $376.75 |
| Q3 2020 | -141 | Reduce 4.04% | 3,352 | $355.01 |
| Q4 2019 | +40 | Add 1.16% | 3,493 | $294.02 |
| Q3 2019 | +31 | Add 0.91% | 3,453 | $288.16 |
| Q2 2019 | -31 | Reduce 0.90% | 3,422 | $264.17 |
| Q1 2019 | -69 | Reduce 1.96% | 3,453 | $242.11 |
| Q3 2018 | -150 | Reduce 4.08% | 3,522 | $234.81 |
| Q2 2018 | +200 | Add 5.76% | 3,672 | $208.88 |
| Q1 2018 | +596 | Add 20.72% | 3,472 | $188.36 |
| Q4 2017 | -126 | Reduce 4.20% | 2,876 | $186.02 |
| Q3 2017 | -54 | Reduce 1.77% | 3,002 | $164.22 |
| Q2 2017 | -46 | Reduce 1.48% | 3,056 | $160.01 |
| Q1 2017 | -163 | Reduce 4.99% | 3,102 | $167.63 |
| Q4 2016 | +26 | Add 0.80% | 3,265 | $160.18 |
| Q3 2016 | +341 | Add 11.77% | 3,239 | $152.52 |
| Q4 2015 | -240 | Reduce 7.65% | 2,898 | $161.49 |
| Q3 2015 | +340 | Add 12.15% | 3,138 | $144.68 |
| Q2 2015 | +157 | Add 5.94% | 2,798 | $135.10 |
| Q4 2014 | +450 | Add 20.54% | 2,641 | $141.61 |
| Q3 2014 | -75 | Reduce 3.31% | 2,191 | $125.51 |
| Q2 2014 | -248 | Reduce 9.86% | 2,266 | $115.18 |
| Q1 2014 | +545 | Add 27.68% | 2,514 | $111.77 |
| Q4 2013 | -200 | Reduce 9.22% | 1,969 | $118.84 |
| Q3 2013 | +203 | Add 10.33% | 2,169 | $115.26 |
| Q2 2013 | +1,966 | Add 0.00% | 1,966 | $110.38 |
Mairs and Power's Costco Wholesale Corporation Investment FAQs
Mairs and Power first purchased Costco Wholesale Corporation (COST) in Q2 2013, acquiring 1,966 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 Costco Wholesale Corporation (COST) for 51 quarters since Q2 2013.
Mairs and Power's largest addition to Costco Wholesale Corporation (COST) was in Q2 2013, adding 1,966 shares worth $217,000.
According to the latest 13F filing for Q4 2025, Mairs and Power's firm, Mairs & Power INC, owns 2,933 shares of Costco Wholesale Corporation (COST), valued at approximately $2.53 M.
As of the Q4 2025 filing, Costco Wholesale Corporation (COST) represents approximately 0.02% of Mairs and Power's publicly disclosed stock portfolio, making it one of their key holdings.
Mairs and Power's peak holding in Costco Wholesale Corporation (COST) was 4,936 shares, as reported at the end of Q4 2023.