Fastenal Company
MX ˙ BMV ˙ US3119001044
SecurityMX:FAST / Fastenal Company
InstitutionDnB Asset Management AS
Latest Disclosed Ownership804,807 shares
Latest Disclosed Value $ 37,343,045
DnB Asset Management AS reports 26.38% increase in ownership of FAST / Fastenal Company

On May 14, 2026 - DnB Asset Management AS filed a 13F-HR form disclosing ownership of 804,807 shares of Fastenal Company (MX:FAST) valued at $37,343,045 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 636,802 shares of Fastenal Company. This represents a change in shares of 26.38% 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)
2026-05-14 2026-03-31 13F Fastenal COM 311900104 804,807 168,005 26.38 37,343 46.13 0.1331
2026-02-05 2025-12-31 13F Fastenal COM 311900104 636,802 294,175 85.86 25,555 52.09 0.0892
2025-11-12 2025-09-30 13F Fastenal COM 311900104 342,627 -78,159 -18.57 16,802 -4.93 0.0628
2025-08-12 2025-06-30 13F Fastenal COM 311900104 420,786 199,130 89.84 17,673 2.82 0.0733
2025-05-15 2025-03-31 13F Fastenal common 311900104 221,656 -4,072 -1.80 17,189 5.90 0.0792
2025-02-12 2024-12-31 13F Fastenal COM 311900104 225,728 3,457 1.56 16,232 2.26 0.0702
2024-11-12 2024-09-30 13F Fastenal COM 311900104 222,271 75,244 51.18 15,875 71.82 0.0717
2024-07-05 2024-06-30 13F Fastenal common 311900104 147,027 3,896 2.72 9,239 -16.32 0.0441
2024-04-12 2024-03-31 13F Fastenal common 311900104 143,131 -97,419 -40.50 11,041 -29.13 0.0576
2024-01-04 2023-12-31 13F Fastenal common 311900104 240,550 40,048 19.97 15,580 42.22 0.0809
2023-10-13 2023-09-30 13F Fastenal common 311900104 200,502 -2,682 -1.32 10,955 -8.59 0.0655
2023-07-10 2023-06-30 13F/A-1 Fastenal common 311900104 203,184 50,205 32.82 11,986 45.26 0.0689
2023-07-06 2023-06-30 13F Fastenal common 311900104 203,184 50,205 11,986 0.0705
2023-04-20 2023-03-31 13F Fastenal common 311900104 152,979 1,503 0.99 8,252 15.12 0.0523
2023-01-12 2022-12-31 13F Fastenal common 311900104 151,476 4,475 3.04 7,168 5.91 0.0505
2022-10-11 2022-09-30 13F Fastenal common 311900104 147,001 -10,515 -6.68 6,768 -13.94 0.0522
2022-07-08 2022-06-30 13F Fastenal common 311900104 157,516 -301 -0.19 7,863 -16.12 0.0553
2022-04-08 2022-03-31 13F Fastenal common 311900104 157,817 16,920 12.01 9,374 3.87 0.0557
2022-01-12 2021-12-31 13F Fastenal common 311900104 140,897 2,753 1.99 9,026 26.60 0.0530
2021-10-15 2021-09-30 13F Fastenal common 311900104 138,144 3,117 2.31 7,130 1.54 0.0463
2021-07-06 2021-06-30 13F Fastenal common 311900104 135,027 -324 -0.24 7,021 3.17 0.0465
2021-04-15 2021-03-31 13F Fastenal common 311900104 135,351 5,775 4.46 6,805 7.55 0.0497
2021-01-19 2020-12-31 13F Fastenal common 311900104 129,576 6,566 5.34 6,327 14.08 0.0554
2020-10-14 2020-09-30 13F Fastenal common 311900104 123,010 3,145 2.62 5,547 8.00 0.0590
2020-07-08 2020-06-30 13F Fastenal common 311900104 119,865 5,482 4.79 5,135 43.68 0.0603
2020-04-17 2020-03-31 13F Fastenal common 311900104 114,383 -20,967 -15.49 3,574 -28.53 0.0526
2020-01-13 2019-12-31 13F Fastenal common 311900104 135,350 5,544 4.27 5,001 17.95 0.0491
2019-10-16 2019-09-30 13F Fastenal common 311900104 129,806 13,216 11.34 4,241 11.61 0.0479
2019-07-08 2019-06-30 13F Fastenal common 311900104 116,590 62,135 114.10 3,800 8.48 0.0438
2019-04-11 2019-03-31 13F Fastenal common 311900104 54,455 475 0.88 3,502 24.10 0.0399
2019-01-15 2018-12-31 13F Fastenal common 311900104 53,980 7,012 14.93 2,823 3.56 0.0366
2018-10-10 2018-09-30 13F Fastenal common 311900104 46,968 1,196 2.61 2,725 23.69 0.0306
2018-07-06 2018-06-30 13F Fastenal common 311900104 45,772 3,500 8.28 2,203 -4.51 0.0260
2018-04-11 2018-03-31 13F Fastenal common 311900104 42,272 4,700 12.51 2,308 12.32 0.0278
2018-01-10 2017-12-31 13F Fastenal common 311900104 37,572 0 0.00 2,055 19.98 0.0248
2017-10-11 2017-09-30 13F Fastenal common 311900104 37,572 900 2.45 1,713 7.27 0.0228
2017-07-06 2017-06-30 13F Fastenal common 311900104 36,672 2,300 6.69 1,596 -9.83 0.0233
2017-04-19 2017-03-31 13F Fastenal common 311900104 34,372 6,600 23.76 1,770 35.74 0.0278
2017-01-17 2016-12-31 13F Fastenal common 311900104 27,772 3,000 12.11 1,305 26.11 0.0239
2016-10-28 2016-09-30 13F Fastenal common 311900104 24,772 700 2.91 1,035 -3.18 0.0204
2016-07-08 2016-06-30 13F Fastenal common 311900104 24,072 1,700 7.60 1,069 -2.55 0.0226
2016-04-11 2016-03-31 13F Fastenal common 311900104 22,372 6,500 40.95 1,096 69.40 0.0229
2016-01-20 2015-12-31 13F Fastenal common 311900104 15,872 -600 -3.64 648 7.30 0.0139
2015-10-21 2015-09-30 13F Fastenal common 311900104 16,472 0 0.00 603 -13.11 0.0151
2015-07-07 2015-06-30 13F Fastenal common 311900104 16,472 0 0.00 695 1.76 0.0153
2015-05-18 2015-03-31 13F Fastenal common 311900104 16,472 -300 -1.79 683 -14.43 0.0152
2015-05-19 2014-12-31 13F Fastenal common 311900104 16,772 1,900 12.78 798 19.49 0.0181
2015-02-17 2014-09-30 13F Fastenal common 311900104 14,872 0 0.00 668 -9.37 0.0147
2014-07-07 2014-06-30 13F Fastenal common 311900104 14,872 14,872 736 0.0156
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.