Fastenal Company
MX ˙ BMV ˙ US3119001044
SecurityMX:FAST / Fastenal Company
InstitutionFenimore Asset Management Inc
Latest Disclosed Ownership3,658,472 shares
Latest Disclosed Value $ 169,753,109
Fenimore Asset Management Inc reports 2.51% decrease in ownership of FAST / Fastenal Company

On May 15, 2026 - Fenimore Asset Management Inc filed a 13F-HR form disclosing ownership of 3,658,472 shares of Fastenal Company (MX:FAST) valued at $169,753,109 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 3,752,643 shares of Fastenal Company. This represents a change in shares of -2.51% 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)
2026-05-15 2026-03-31 13F Fastenal COM 311900104 3,658,472 -94,171 -2.51 169,753 12.72 3.7858
2026-02-02 2025-12-31 13F Fastenal COM 311900104 3,752,643 1,465 0.04 150,594 -18.14 3.1361
2025-10-20 2025-09-30 13F Fastenal COM 311900104 3,751,178 3,474 0.09 183,958 16.87 3.6880
2025-07-22 2025-06-30 13F Fastenal COM 311900104 3,747,704 1,883,419 101.03 157,404 8.87 3.1412
2025-04-14 2025-03-31 13F Fastenal COM 311900104 1,864,285 15,410 0.83 144,575 8.74 3.0619
2025-01-21 2024-12-31 13F Fastenal COM 311900104 1,848,875 3,978 0.22 132,953 0.90 2.7933
2024-11-14 2024-09-30 13F Fastenal COM 311900104 1,844,897 13,494 0.74 131,763 14.49 2.6543
2024-08-14 2024-06-30 13F Fastenal COM 311900104 1,831,403 15,520 0.85 115,085 -17.84 2.5208
2024-04-30 2024-03-31 13F Fastenal COM 311900104 1,815,883 6,628 0.37 140,077 19.53 2.9584
2024-01-23 2023-12-31 13F Fastenal COM 311900104 1,809,255 -6,641 -0.37 117,185 18.11 2.7205
2023-10-19 2023-09-30 13F Fastenal COM 311900104 1,815,896 3,408 0.19 99,221 -7.20 2.5771
2023-07-25 2023-06-30 13F Fastenal COM 311900104 1,812,488 4,561 0.25 106,919 9.64 2.6675
2023-04-20 2023-03-31 13F Fastenal COM 311900104 1,807,927 20,175 1.13 97,520 115,994.05 2.5449
2023-01-17 2022-12-31 13F Fastenal COM 311900104 1,787,752 29,617 1.68 85 -99.90 2.2743
2022-10-25 2022-09-30 13F Fastenal COM 311900104 1,758,135 10,189 0.58 80,945 -7.23 2.3264
2022-07-26 2022-06-30 13F Fastenal COM 311900104 1,747,946 5,242 0.30 87,257 -15.71 2.4630
2022-04-12 2022-03-31 13F Fastenal COM 311900104 1,742,704 18,005 1.04 103,517 -6.31 2.5316
2022-01-13 2021-12-31 13F Fastenal COM 311900104 1,724,699 10,362 0.60 110,484 24.87 2.4539
2021-10-26 2021-09-30 13F Fastenal COM 311900104 1,714,337 13,840 0.81 88,477 0.06 2.1745
2021-07-15 2021-06-30 13F Fastenal COM 311900104 1,700,497 31,455 1.88 88,426 5.37 2.1419
2021-04-16 2021-03-31 13F Fastenal COM 311900104 1,669,042 30,382 1.85 83,919 4.88 2.1664
2021-01-28 2020-12-31 13F Fastenal COM 311900104 1,638,660 -8,542 -0.52 80,016 7.73 2.2469
2020-10-13 2020-09-30 13F Fastenal COM 311900104 1,647,202 -12,515 -0.75 74,272 4.46 2.3986
2020-07-28 2020-06-30 13F Fastenal COM 311900104 1,659,717 150,966 10.01 71,102 50.81 2.4960
2020-04-24 2020-03-31 13F Fastenal COM 311900104 1,508,751 139,113 10.16 47,148 -6.84 1.9012
2020-01-16 2019-12-31 13F Fastenal COM 311900104 1,369,638 22,240 1.65 50,608 14.97 1.5432
2019-10-22 2019-09-30 13F Fastenal COM 311900104 1,347,398 935,870 227.41 44,019 228.21 1.4515
2019-07-16 2019-06-30 13F Fastenal COM 311900104 411,528 291,669 243.34 13,412 74.00 0.4457
2019-04-11 2019-03-31 13F Fastenal COM 311900104 119,859 119,859 7,708 0.2801
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.