Fastenal Company
MX ˙ BMV ˙ US3119001044
SecurityMX:FAST / Fastenal Company
InstitutionAdvisors Asset Management, Inc.
Latest Disclosed Ownership140,905 shares
Latest Disclosed Value $ 6,537,992
Advisors Asset Management, Inc. reports 6.59% decrease in ownership of FAST / Fastenal Company

On May 15, 2026 - Advisors Asset Management, Inc. filed a 13F-HR form disclosing ownership of 140,905 shares of Fastenal Company (MX:FAST) valued at $6,537,992 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 150,849 shares of Fastenal Company. This represents a change in shares of -6.59% 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 140,905 -9,944 -6.59 6,538 8.00 0.1085
2026-02-12 2025-12-31 13F FASTENAL COM 311900104 150,849 -7,673 -4.84 6,054 -22.13 0.1016
2025-11-06 2025-09-30 13F FASTENAL COM 311900104 158,522 -5,121 -3.13 7,774 13.09 0.1319
2025-08-12 2025-06-30 13F FASTENAL COM 311900104 163,643 80,997 98.00 6,873 7.24 0.1231
2025-05-15 2025-03-31 13F FASTENAL COM 311900104 82,646 -8,816 -9.64 6,409 -2.55 0.1204
2025-02-10 2024-12-31 13F FASTENAL COM 311900104 91,462 -10,635 -10.42 6,577 -9.79 0.1212
2024-11-08 2024-09-30 13F FASTENAL COM 311900104 102,097 -7,774 -7.08 7,292 5.61 0.1339
2024-08-14 2024-06-30 13F FASTENAL COM 311900104 109,871 1,084 1.00 6,904 -17.72 0.1347
2024-05-14 2024-03-31 13F FASTENAL COM 311900104 108,787 -3,541 -3.15 8,392 15.34 0.1613
2024-02-14 2023-12-31 13F FASTENAL COM 311900104 112,328 -724 -0.64 7,275 17.78 0.1485
2023-11-14 2023-09-30 13F FASTENAL COM 311900104 113,052 3,261 2.97 6,177 -4.62 0.1333
2023-08-14 2023-06-30 13F FASTENAL COM 311900104 109,791 1,789 1.66 6,477 11.18 0.1323
2023-05-12 2023-03-31 13F FASTENAL COM 311900104 108,002 2,096 1.98 5,826 16.24 0.1185
2023-02-13 2022-12-31 13F FASTENAL COM 311900104 105,906 5,559 5.54 5,011 8.46 0.1032
2022-11-08 2022-09-30 13F FASTENAL COM 311900104 100,347 2,683 2.75 4,620 -5.23 0.0971
2022-08-08 2022-06-30 13F FASTENAL COM 311900104 97,664 1,014 1.05 4,875 -15.08 0.0925
2022-05-17 2022-03-31 13F FASTENAL COM 311900104 96,650 1,479 1.55 5,741 -5.84 0.0884
2022-02-15 2021-12-31 13F FASTENAL COM 311900104 95,171 -3,886 -3.92 6,097 19.27 0.0870
2021-11-12 2021-09-30 13F FASTENAL COM 311900104 99,057 -25,013 -20.16 5,112 -20.77 0.0777
2021-07-30 2021-06-30 13F FASTENAL COM 311900104 124,070 -19,790 -13.76 6,452 -10.80 0.0952
2021-05-07 2021-03-31 13F FASTENAL COM 311900104 143,860 -22,726 -13.64 7,233 -11.08 0.1125
2021-02-12 2020-12-31 13F FASTENAL COM 311900104 166,586 -39,703 -19.25 8,134 -12.56 0.1345
2020-11-16 2020-09-30 13F FASTENAL COM 311900104 206,289 -35,440 -14.66 9,302 -10.18 0.1720
2020-08-12 2020-06-30 13F FASTENAL COM 311900104 241,729 -20,572 -7.84 10,356 26.34 0.2016
2020-05-15 2020-03-31 13F FASTENAL COM 311900104 262,301 -41,263 -13.59 8,197 -26.92 0.1950
2020-05-20 2019-12-31 13F/A-1 FASTENAL COM 311900104 303,564 -12,527 -3.96 11,217 8.62 0.1967
2020-02-14 2019-12-31 13F FASTENAL COM 311900104 303,564 -12,527 11,217 99,281.0554
2019-11-14 2019-09-30 13F FASTENAL COM 311900104 316,091 -9,634 -2.96 10,327 -2.71 0.1902
2019-11-14 2019-06-30 13F/A-1 FASTENAL COM 311900104 325,725 161,329 98.13 10,615 0.41 0.1915
2019-08-14 2019-06-30 13F FASTENAL COM 311900104 325,725 161,329 10,615
2019-05-15 2019-03-31 13F FASTENAL COM 311900104 164,396 11,208 7.32 10,572 31.99 0.1881
2019-02-06 2018-12-31 13F/A-1 FASTENAL COM 311900104 153,188 -10,947 -6.67 8,010 -15.89 0.1613
2019-01-31 2018-12-31 13F FASTENAL COM 311900104 153,188 -10,947 8,010
2018-11-15 2018-09-30 13F FASTENAL COM 311900104 164,135 380 0.23 9,523 20.82 0.1557
2018-08-22 2018-06-30 13F/A-1 FASTENAL COM 311900104 163,755 -50,119 -23.43 7,882 -32.65 0.1339
2018-08-15 2018-06-30 13F FASTENAL COM 311900104 313,997 100,123 7,882
2018-05-15 2018-03-31 13F FASTENAL COM 311900104 213,874 -35,216 -14.14 11,703 -14.09 0.1961
2018-02-13 2017-12-31 13F FASTENAL COM 311900104 249,090 -35,957 -12.61 13,623 4.86 0.2239
2017-11-07 2017-09-30 13F FASTENAL COM 311900104 285,047 -40,045 -12.32 12,992 -8.19 0.2176
2017-08-02 2017-06-30 13F FASTENAL COM 311900104 325,092 2,240 0.69 14,151 -14.89 0.2365
2017-05-02 2017-03-31 13F FASTENAL COM 311900104 322,852 87,683 37.29 16,627 69.23 0.2786
2016-10-31 2016-09-30 13F FASTENAL COM 311900104 235,169 36,601 18.43 9,825 11.47 0.1611
2016-08-08 2016-06-30 13F FASTENAL COM 311900104 198,568 82,381 70.90 8,814 54.82 0.1429
2016-05-16 2016-03-31 13F FASTENAL COM 311900104 116,187 19,133 19.71 5,693 43.69 0.0947
2016-02-10 2015-12-31 13F FASTENAL COM 311900104 97,054 35,722 58.24 3,962 76.48 0.0629
2015-11-16 2015-09-30 13F FASTENAL COM 311900104 61,332 -2,669 -4.17 2,245 -16.85 0.0358
2015-08-11 2015-06-30 13F FASTENAL COM 311900104 64,001 -304 -0.47 2,700 1.35 0.0371
2015-05-13 2015-03-31 13F FASTENAL COM 311900104 64,305 9,057 16.39 2,664 1.37 0.0355
2015-02-05 2014-12-31 13F FASTENAL COM 311900104 55,248 18,351 49.74 2,628 58.60 0.0352
2014-11-13 2014-09-30 13F FASTENAL COM 311900104 36,897 3,395 10.13 1,657 -0.06 0.0229
2014-08-14 2014-06-30 13F FASTENAL COM 311900104 33,502 6,968 26.26 1,658 26.66 0.0230
2014-05-15 2014-03-31 13F FASTENAL COM 311900104 26,534 10,227 62.72 1,309 68.90 0.0198
2014-02-03 2013-12-31 13F FASTENAL COM 311900104 16,307 14,108 641.56 775 604.55 0.0125
2013-11-15 2013-09-30 13F FASTENAL COM 311900104 2,199 599 37.44 110 50.68 0.0020
2013-08-14 2013-06-30 13F FASTENAL COM 311900104 1,600 1,600 73 0.0014
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.