Fastenal Company
MX ˙ BMV ˙ US3119001044
SecurityMX:FAST / Fastenal Company
InstitutionMAI Capital Management
Latest Disclosed Ownership187,781 shares
Latest Disclosed Value $ 8,713,047
MAI Capital Management reports 0.88% increase in ownership of FAST / Fastenal Company

On May 15, 2026 - MAI Capital Management filed a 13F-HR form disclosing ownership of 187,781 shares of Fastenal Company (MX:FAST) valued at $8,713,047 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 186,136 shares of Fastenal Company. This represents a change in shares of 0.88% 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 187,781 1,645 0.88 8,713 16.66 0.0492
2026-02-13 2025-12-31 13F FASTENAL COM 311900104 186,136 16,296 9.59 7,470 -10.31 0.0430
2025-11-10 2025-09-30 13F FASTENAL COM 311900104 169,840 142,180 514.03 8,329 617.31 0.0519
2025-08-12 2025-06-30 13F FASTENAL COM 311900104 27,660 15,303 123.84 1,162 21.19 0.0080
2025-05-15 2025-03-31 13F FASTENAL COM 311900104 12,357 572 4.85 958 13.11 0.0072
2025-02-14 2024-12-31 13F FASTENAL COM 311900104 11,785 1,494 14.52 847 15.40 0.0063
2024-11-07 2024-09-30 13F Fastenal CS 311900104 10,291 -3,731 -26.61 735 -16.69 0.0070
2024-08-12 2024-06-30 13F Fastenal CS 311900104 14,022 -166 -1.17 881 -19.47 0.0086
2024-05-08 2024-03-31 13F Fastenal CS 311900104 14,188 553 4.06 1,094 23.90 0.0113
2024-02-09 2023-12-31 13F Fastenal CS 311900104 13,635 521 3.97 883 23.32 0.0116
2023-11-14 2023-09-30 13F Fastenal CS 311900104 13,114 1,245 10.49 717 2.29 0.0107
2023-08-02 2023-06-30 13F Fastenal CS 311900104 11,869 792 7.15 700 17.25 0.0103
2023-05-10 2023-03-31 13F Fastenal CS 311900104 11,077 590 5.63 598 20.36 0.0094
2023-02-09 2022-12-31 13F Fastenal CS 311900104 10,487 814 8.42 496 11.46 0.0083
2022-11-15 2022-09-30 13F Fastenal CS 311900104 9,673 9,673 445 0.0084
2022-05-10 2022-03-31 13F Fastenal CS 311900104 0 -12,813 -100.00 0 -100.00
2022-02-11 2021-12-31 13F Fastenal CS 311900104 12,813 12,813 821 0.0132
2016-10-18 2016-09-30 13F Fastenal CS 311900104 0 -8,721 -100.00 0 -100.00
2016-07-14 2016-06-30 13F Fastenal CS 311900104 8,721 0 0.00 387 -9.37 0.0298
2016-04-08 2016-03-31 13F Fastenal CS 311900104 8,721 -1,171 -11.84 427 5.69 0.0327
2016-01-27 2015-12-31 13F Fastenal CS 311900104 9,892 -1,123 -10.20 404 0.25 0.0308
2015-10-28 2015-09-30 13F Fastenal CS 311900104 11,015 0 0.00 403 -13.33 0.0305
2015-07-09 2015-06-30 13F Fastenal CS 311900104 11,015 0 0.00 465 1.97 0.0306
2015-04-30 2015-03-31 13F Fastenal CS 311900104 11,015 -34 -0.31 456 -13.14 0.0306
2015-01-20 2014-12-31 13F Fastenal CS 311900104 11,049 974 9.67 525 16.15 0.0368
2014-10-16 2014-09-30 13F/A-1 Fastenal CS 311900104 10,075 3,012 42.64 452 29.14 0.0435
2014-10-16 2014-09-30 13F Fastenal COM 311900104 7,063 350
2014-07-28 2014-06-30 13F Fastenal COM 311900104 7,063 0 0.00 350 0.57 0.0336
2014-04-28 2014-03-31 13F Fastenal COM 311900104 7,063 7,063 348 0.0350
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.