Fastenal Company
MX ˙ BMV ˙ US3119001044
SecurityMX:FAST / Fastenal Company
InstitutionHarfst & Associates, Inc.
Latest Disclosed Ownership61,859 shares
Latest Disclosed Value $ 2,870,243
Harfst & Associates, Inc. reports 2.40% decrease in ownership of FAST / Fastenal Company

On May 12, 2026 - Harfst & Associates, Inc. filed a 13F-HR form disclosing ownership of 61,859 shares of Fastenal Company (MX:FAST) valued at $2,870,243 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 63,382 shares of Fastenal Company. This represents a change in shares of -2.40% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-12 2026-03-31 13F FASTENAL COM 311900104 61,859 -1,523 -2.40 2,870 12.86 0.5124
2026-02-10 2025-12-31 13F FASTENAL COM 311900104 63,382 -338 -0.53 2,544 -18.60 0.4586
2025-10-23 2025-09-30 13F FASTENAL COM 311900104 63,720 256 0.40 3,125 17.22 0.5763
2025-08-13 2025-06-30 13F FASTENAL COM 311900104 63,464 29,504 86.88 2,665 1.22 0.5497
2025-05-13 2025-03-31 13F FASTENAL COM 311900104 33,960 -3,536 -9.43 2,634 -2.34 0.6087
2025-02-05 2024-12-31 13F FASTENAL COM 311900104 37,496 710 1.93 2,696 2.63 0.5617
2024-10-18 2024-09-30 13F FASTENAL COM 311900104 36,786 853 2.37 2,627 16.34 0.5901
2024-08-01 2024-06-30 13F FASTENAL COM 311900104 35,933 -32 -0.09 2,258 -18.60 0.5263
2024-08-01 2024-03-31 13F/A-1 FASTENAL COM 311900104 35,965 -2,716 -7.02 2,774 10.74 0.6587
2024-02-07 2023-12-31 13F FASTENAL COM 311900104 38,681 -1,402 -3.50 2,505 14.38 0.6614
2023-11-07 2023-09-30 13F FASTENAL COM 311900104 40,083 -124 -0.31 2,190 -7.63 0.6147
2023-08-07 2023-06-30 13F FASTENAL COM 311900104 40,207 7,955 24.67 2,372 36.34 0.6313
2023-05-10 2023-03-31 13F FASTENAL COM 311900104 32,252 20 0.06 1,740 14.03 0.4989
2023-02-13 2022-12-31 13F FASTENAL COM 311900104 32,232 515 1.62 1,525 4.45 0.4399
2022-10-28 2022-09-30 13F FASTENAL COM 311900104 31,717 2,626 9.03 1,460 0.55 0.4391
2022-07-28 2022-06-30 13F FASTENAL COM 311900104 29,091 -1,763 -5.71 1,452 -20.74 0.4122
2022-04-28 2022-03-31 13F FASTENAL COM 311900104 30,854 3,215 11.63 1,832 3.50 0.4255
2022-02-07 2021-12-31 13F FASTENAL COM 311900104 27,639 -366 -1.31 1,770 22.49 0.4505
2021-10-28 2021-09-30 13F FASTENAL COM 311900104 28,005 4 0.01 1,445 -0.76 0.3993
2021-08-11 2021-06-30 13F FASTENAL COM 311900104 28,001 -457 -1.61 1,456 1.82 0.4218
2021-05-10 2021-03-31 13F FASTENAL COM 311900104 28,458 2,998 11.78 1,430 15.04 0.4308
2021-01-25 2020-12-31 13F FASTENAL COM 311900104 25,460 4,437 21.11 1,243 31.26 0.4568
2020-11-04 2020-09-30 13F FASTENAL COM 311900104 21,023 -1,012 -4.59 947 0.42 0.4008
2020-08-07 2020-06-30 13F FASTENAL COM 311900104 22,035 -577 -2.55 943 33.57 0.4053
2020-05-05 2020-03-31 13F FASTENAL COM 311900104 22,612 924 4.26 706 -11.86 0.3590
2020-02-14 2019-12-31 13F FASTENAL COM 311900104 21,688 714 3.40 801 16.93 0.3084
2019-11-14 2019-09-30 13F FASTENAL COM 311900104 20,974 500 2.44 685 2.70 0.2820
2019-08-14 2019-06-30 13F FASTENAL COM 311900104 20,474 13,037 175.30 667 39.54 0.2724
2019-05-01 2019-03-31 13F FASTENAL COM 311900104 7,437 1,588 27.15 478 56.72 0.2045
2019-02-06 2018-12-31 13F FASTENAL COM 311900104 5,849 777 15.32 305 3.74 0.1459
2018-10-31 2018-09-30 13F FASTENAL COM 311900104 5,072 349 7.39 294 29.52 0.1256
2018-08-10 2018-06-30 13F FASTENAL COM 311900104 4,723 -2,241 -32.18 227 -40.26 0.0959
2018-05-04 2018-03-31 13F FASTENAL COM 311900104 6,964 551 8.59 380 8.57 0.1550
2018-02-09 2017-12-31 13F FASTENAL COM 311900104 6,413 6,413 350 0.1417
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.