Fastenal Company
MX ˙ BMV ˙ US3119001044
SecurityMX:FAST / Fastenal Company
InstitutionSummit Asset Management, LLC
Latest Disclosed Ownership15,399 shares
Latest Disclosed Value $ 714,514
Summit Asset Management, LLC reports 1.05% decrease in ownership of FAST / Fastenal Company

On May 8, 2026 - Summit Asset Management, LLC filed a 13F-HR form disclosing ownership of 15,399 shares of Fastenal Company (MX:FAST) valued at $714,514 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 15,563 shares of Fastenal Company. This represents a change in shares of -1.05% 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)
2026-05-08 2026-03-31 13F FASTENAL COM 311900104 15,399 -164 -1.05 715 14.42 0.0994
2026-02-09 2025-12-31 13F FASTENAL COM 311900104 15,563 0 0.00 625 -18.22 0.0884
2025-11-06 2025-09-30 13F FASTENAL COM 311900104 15,563 187 1.22 763 18.29 0.1174
2025-08-07 2025-06-30 13F FASTENAL COM 311900104 15,376 6,688 76.98 646 -4.16 0.1052
2025-05-06 2025-03-31 13F FASTENAL COM 311900104 8,688 0 0.00 674 7.85 0.1166
2025-02-04 2024-12-31 13F FASTENAL COM 311900104 8,688 0 0.00 625 0.65 0.1098
2024-11-06 2024-09-30 13F FASTENAL COM 311900104 8,688 0 0.00 620 13.76 0.1165
2024-08-05 2024-06-30 13F FASTENAL COM 311900104 8,688 0 0.00 546 -18.66 0.1130
2024-05-06 2024-03-31 13F FASTENAL COM 311900104 8,688 0 0.00 670 19.22 0.1438
2024-02-06 2023-12-31 13F FASTENAL COM 311900104 8,688 0 0.00 563 18.57 0.1346
2023-11-06 2023-09-30 13F FASTENAL COM 311900104 8,688 0 0.00 475 -7.42 0.1289
2023-08-07 2023-06-30 13F FASTENAL COM 311900104 8,688 0 0.00 513 9.40 0.1351
2023-05-12 2023-03-31 13F FASTENAL COM 311900104 8,688 0 0.00 469 13.87 0.1290
2023-02-13 2022-12-31 13F FASTENAL COM 311900104 8,688 0 0.00 411 2.75 0.1190
2022-11-07 2022-09-30 13F FASTENAL COM 311900104 8,688 0 0.00 400 -7.83 0.1293
2022-08-10 2022-06-30 13F FASTENAL COM 311900104 8,688 0 0.00 434 -15.89 0.1343
2022-05-09 2022-03-31 13F FASTENAL COM 311900104 8,688 0 0.00 516 -7.36 0.1481
2022-02-11 2021-12-31 13F FASTENAL COM 311900104 8,688 332 3.97 557 29.23 0.1579
2021-11-08 2021-09-30 13F FASTENAL COM 311900104 8,356 0 0.00 431 -0.92 0.1350
2021-08-06 2021-06-30 13F FASTENAL COM 311900104 8,356 0 0.00 435 3.57 0.1367
2021-05-07 2021-03-31 13F FASTENAL COM 311900104 8,356 0 0.00 420 2.94 0.1426
2021-02-09 2020-12-31 13F FASTENAL COM 311900104 8,356 0 0.00 408 8.22 0.1489
2020-11-06 2020-09-30 13F FASTENAL COM 311900104 8,356 0 0.00 377 5.31 0.1562
2020-08-07 2020-06-30 13F FASTENAL COM 311900104 8,356 0 0.00 358 37.16 0.1630
2020-05-08 2020-03-31 13F FASTENAL COM 311900104 8,356 0 0.00 261 -15.53 0.1407
2020-02-07 2019-12-31 13F FASTENAL COM 311900104 8,356 0 0.00 309 13.19 0.1318
2019-11-06 2019-09-30 13F FASTENAL COM 311900104 8,356 0 0.00 273 0.37 0.1271
2019-08-07 2019-06-30 13F FASTENAL COM 311900104 8,356 4,178 100.00 272 1.12 0.1289
2019-05-07 2019-03-31 13F FASTENAL COM 311900104 4,178 4,178 269 0.1324
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.