Fastenal Company
MX ˙ BMV ˙ US3119001044
SecurityMX:FAST / Fastenal Company
InstitutionSmartleaf Asset Management LLC
Latest Disclosed Ownership18,105 shares
Latest Disclosed Value $ 816,923
Smartleaf Asset Management LLC reports 5.63% increase in ownership of FAST / Fastenal Company

On May 15, 2026 - Smartleaf Asset Management LLC filed a 13F-HR form disclosing ownership of 18,105 shares of Fastenal Company (MX:FAST) valued at $816,923 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 17,140 shares of Fastenal Company. This represents a change in shares of 5.63% 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 18,105 965 5.63 817 16.57 0.0295
2026-02-13 2025-12-31 13F FASTENAL COM 311900104 17,140 1,162 7.27 701 -10.26 0.0265
2025-11-05 2025-09-30 13F FASTENAL COM 311900104 15,978 5,232 48.69 781 73.33 0.0483
2025-08-14 2025-06-30 13F FASTENAL COM 311900104 10,746 4,439 70.38 451 -6.25 0.0397
2025-05-14 2025-03-31 13F FASTENAL COM 311900104 6,307 55 0.88 480 6.90 0.0464
2025-02-05 2024-12-31 13F FASTENAL COM 311900104 6,252 576 10.15 450 10.86 0.0458
2024-11-13 2024-09-30 13F FASTENAL COM 311900104 5,676 1,946 52.17 406 71.61 0.0493
2024-10-08 2024-06-30 13F/A-1 FASTENAL COM 311900104 3,730 567 17.93 236 -3.28 0.0387
2024-08-13 2024-06-30 13F FASTENAL COM 311900104 3,730 567 236 0.0387
2024-10-07 2024-03-31 13F/A-1 FASTENAL COM 311900104 3,163 756 31.41 244 56.41 0.0473
2024-05-03 2024-03-31 13F FASTENAL COM 311900104 3,163 756 162 0.0390
2024-02-12 2023-12-31 13F FASTENAL COM 311900104 2,407 2,407 156 0.0417
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.