Fastenal Company
MX ˙ BMV ˙ US3119001044
SecurityMX:FAST / Fastenal Company
InstitutionRMR Wealth Builders
Latest Disclosed Ownership16,544 shares
Latest Disclosed Value $ 767,642
RMR Wealth Builders ownership in FAST / Fastenal Company

On April 22, 2026 - RMR Wealth Builders filed a 13F-HR form disclosing ownership of 16,544 shares of Fastenal Company (MX:FAST) valued at $767,642 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 16,544 shares of Fastenal Company. This represents a change in shares of 0.00% during the quarter.

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)
2026-04-22 2026-03-31 13F FASTENAL COM 311900104 16,544 0 0.00 768 15.69 0.0604
2026-01-29 2025-12-31 13F FASTENAL COM 311900104 16,544 -216 -1.29 664 -19.24 0.0531
2025-11-05 2025-09-30 13F FASTENAL COM 311900104 16,760 312 1.90 822 18.99 0.0688
2025-07-08 2025-06-30 13F FASTENAL COM 311900104 16,448 8,272 101.17 691 8.83 0.0628
2025-04-16 2025-03-31 13F FASTENAL COM 311900104 8,176 4 0.05 634 8.01 0.0667
2025-01-14 2024-12-31 13F/A-1 FASTENAL COM 311900104 8,172 26 0.32 588 1.03 0.0607
2025-01-10 2024-12-31 13F FASTENAL COM 311900104 8,172 26 588 0.0611
2024-10-21 2024-09-30 13F FASTENAL COM 311900104 8,146 0 0.00 582 13.70 0.0616
2024-07-23 2024-06-30 13F FASTENAL COM 311900104 8,146 0 0.00 512 -18.63 0.0587
2024-04-15 2024-03-31 13F FASTENAL COM 311900104 8,146 0 0.00 628 19.17 0.0760
2024-02-06 2023-12-31 13F FASTENAL COM 311900104 8,146 0 0.00 528 18.43 0.0741
2023-10-23 2023-09-30 13F FASTENAL COM 311900104 8,146 0 0.00 445 -7.29 0.0711
2023-07-21 2023-06-30 13F FASTENAL COM 311900104 8,146 0 0.00 481 9.34 0.0817
2023-04-11 2023-03-31 13F FASTENAL COM 311900104 8,146 0 0.00 439 14.03 0.0835
2023-02-15 2022-12-31 13F/A-1 FASTENAL COM 311900104 8,146 0 0.00 385 2.67 0.0874
2022-11-08 2022-09-30 13F FASTENAL COM 311900104 8,146 1,238 17.92 375 8.70 0.0917
2022-08-02 2022-06-30 13F FASTENAL COM 311900104 6,908 0 0.00 345 -15.85 0.0860
2022-05-13 2022-03-31 13F FASTENAL COM 311900104 6,908 6,908 410 0.0879
2022-02-02 2021-12-31 13F FASTENAL COM 311900104 0 -6,908 -100.00 0 -100.00
2021-10-18 2021-09-30 13F FASTENAL COM 311900104 6,908 0 0.00 357 -0.56 0.1048
2021-08-16 2021-06-30 13F FASTENAL CO COM Common Stock 311900104 6,908 0 0.00 359 3.46 0.1177
2021-05-13 2021-03-31 13F FASTENAL COM 311900104 6,908 0 0.00 347 2.97 0.0902
2021-02-26 2020-12-31 13F/A-1 FASTENAL COM 311900104 6,908 -2,400 -25.78 337 -19.76 0.1655
2021-02-09 2020-12-31 13F FASTENAL COM 311900104 6,908 -2,400 337 184,478.6153
2020-11-13 2020-09-30 13F FASTENAL COM 311900104 9,308 2,400 34.74 420 41.89 0.1090
2020-08-19 2020-06-30 13F FASTENAL COM 311900104 6,908 0 0.00 296 16.08 0.2639
2020-03-03 2019-12-31 13F FASTENAL COM STK USD0.01 COM 311900104 6,908 6,908 255 0.2456
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.