Fastenal Company
MX ˙ BMV ˙ US3119001044
SecurityMX:FAST / Fastenal Company
InstitutionComerica Bank
Latest Disclosed Ownership283,293 shares
Latest Disclosed Value $ 11,368,542
Comerica Bank reports 4.92% decrease in ownership of FAST / Fastenal Company

On January 29, 2026 - Comerica Bank filed a 13F-HR form disclosing ownership of 283,293 shares of Fastenal Company (MX:FAST) valued at $11,368,542 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 14, 2025 disclosing 297,967 shares of Fastenal Company. This represents a change in shares of -4.92% 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)
2026-01-29 2025-12-31 13F FASTENAL COM 311900104 283,293 -14,674 -4.92 11,369 -22.20 0.0454
2025-11-14 2025-09-30 13F FASTENAL COM 311900104 297,967 -4,958 -1.64 14,612 14.86 0.0550
2025-08-14 2025-06-30 13F FASTENAL COM 311900104 302,925 150,262 98.43 12,723 7.46 0.0494
2025-05-14 2025-03-31 13F FASTENAL COM 311900104 152,663 -367 -0.24 11,839 7.59 0.0497
2025-02-14 2024-12-31 13F/A-1 FASTENAL COM 311900104 153,030 -8,154 -5.06 11,004 -4.40 0.0444
2025-02-14 2024-12-31 13F FASTENAL COM 311900104 153,030 -8,154 11,004 0.0369
2024-11-14 2024-09-30 13F FASTENAL COM 311900104 161,184 -3,209 -1.95 11,512 11.43 0.0455
2024-08-15 2024-06-30 13F FASTENAL COMMON 311900104 164,393 -5,977 -3.51 10,330 -21.40 0.0430
2024-05-16 2024-03-31 13F FASTENAL COMMON 311900104 170,370 10,915 6.85 13,142 27.26 0.0566
2024-02-14 2023-12-31 13F FASTENAL COMMON 311900104 159,455 -7,300 -4.38 10,328 13.35 0.0476
2023-11-21 2023-09-30 13F FASTENAL COMMON 311900104 166,755 -376,771 -69.32 9,111 0.0475
2023-08-22 2023-06-30 13F FASTENAL EQU 311900104 543,526 464,071 584.07 0 -100.00 0.0105
2023-01-26 2022-12-31 13F FASTENAL COM 311900104 79,455 426 0.54 4 -99.92 0.0298
2022-10-28 2022-09-30 13F FASTENAL COM 311900104 79,029 -9,359 -10.59 3,698 -13.74 0.0312
2022-08-02 2022-06-30 13F FASTENAL COM 311900104 88,388 202 0.23 4,287 -14.74 0.0352
2022-04-27 2022-03-31 13F FASTENAL COM 311900104 88,186 882 1.01 5,028 3.44 0.0365
2022-02-18 2021-12-31 13F FASTENAL COM 311900104 87,304 5,092 6.19 4,861 5.49 0.0358
2021-11-22 2021-09-30 13F FASTENAL COM 311900104 82,212 -35,627 -30.23 4,608 -28.98 0.0278
2021-08-26 2021-06-30 13F FASTENAL COM 311900104 117,839 -28,826 -19.65 6,488 -15.22 0.0387
2021-04-28 2021-03-31 13F FASTENAL COM 311900104 146,665 -3,683 -2.45 7,653 6.66 0.0456
2021-01-28 2020-12-31 13F FASTENAL COM 311900104 150,348 28,060 22.95 7,175 30.38 0.0455
2020-10-30 2020-09-30 13F FASTENAL COM 311900104 122,288 34 0.03 5,503 -1.80 0.0399
2020-07-31 2020-06-30 13F FASTENAL COM 311900104 122,254 4,064 3.44 5,604 31.61 0.0432
2020-05-01 2020-03-31 13F FASTENAL COM 311900104 118,190 -6,063 -4.88 4,258 -5.19 0.0391
2020-02-07 2019-12-31 13F FASTENAL COM 311900104 124,253 -22,488 -15.32 4,491 -17.69 0.0340
2019-10-31 2019-09-30 13F FASTENAL COM 311900104 146,741 -1,932 -1.30 5,456 19.96 0.0431
2019-08-02 2019-06-30 13F FASTENAL COM 311900104 148,673 75,610 103.49 4,548 -4.51 0.0364
2019-05-02 2019-03-31 13F FASTENAL COM 311900104 73,063 -21,621 -22.83 4,763 -16.11 0.0386
2019-02-06 2018-12-31 13F FASTENAL COM 311900104 94,684 8,016 9.25 5,678 30.02 0.0482
2018-11-01 2018-09-30 13F FASTENAL COM 311900104 86,668 -17,690 -16.95 4,367 -25.20 0.0352
2018-08-01 2018-06-30 13F FASTENAL COM 311900104 104,358 -5,640 -5.13 5,838 4.92 0.0408
2018-05-01 2018-03-31 13F FASTENAL COM 311900104 109,998 1,175 1.08 5,564 -10.08 0.0398
2018-02-02 2017-12-31 13F FASTENAL COM 311900104 108,823 -4,220 -3.73 6,188 16.98 0.0412
2017-11-06 2017-09-30 13F FASTENAL COM 311900104 113,043 -6,710 -5.60 5,290 2.66 0.0383
2017-08-03 2017-06-30 13F FASTENAL COM 311900104 119,753 -1,011 -0.84 5,153 -5.97 0.0386
2017-05-03 2017-03-31 13F FASTENAL COM 311900104 120,764 -4,203 -3.36 5,480 -8.74 0.0416
2017-02-08 2016-12-31 13F FASTENAL COM 311900104 124,967 -17,716 -12.42 6,005 -0.92 0.0475
2016-08-11 2016-06-30 13F FASTENAL COM 311900104 142,683 4,321 3.12 6,061 -4.39 0.0523
2016-05-11 2016-03-31 13F FASTENAL COM 311900104 138,362 -1,027 -0.74 6,339 17.22 0.0566
2016-02-05 2015-12-31 13F FASTENAL COM 311900104 139,389 -10,048 -6.72 5,408 -1.15 0.0531
2015-11-12 2015-09-30 13F FASTENAL COM 311900104 149,437 -140,137 -48.39 5,471 -55.21 0.0518
2015-08-13 2015-06-30 13F FASTENAL COM 311900104 289,574 164,874 132.22 12,214 136.34 0.0524
2015-05-15 2015-03-31 13F FASTENAL COM 311900104 124,700 -154,442 -55.33 5,168 -61.07 0.0438
2015-02-13 2014-12-31 13F FASTENAL COM 311900104 279,142 145,470 108.83 13,276 121.19 0.0574
2014-10-21 2014-09-30 13F FASTENAL COM 311900104 133,672 8,842 7.08 6,002 -2.83 0.0530
2014-08-12 2014-06-30 13F FASTENAL COM 311900104 124,830 -14,553 -10.44 6,177 -10.10 0.0525
2014-05-15 2014-03-31 13F FASTENAL COM 311900104 139,383 21,111 17.85 6,871 22.28 0.0526
2014-02-11 2013-12-31 13F FASTENAL COM 311900104 118,272 -36,372 -23.52 5,619 -27.72 0.0436
2013-11-12 2013-09-30 13F FASTENAL COM 311900104 154,644 -5,440 -3.40 7,774 6.06 0.0541
2013-08-13 2013-06-30 13F/A-1 FASTENAL COM 311900104 160,084 160,084 7,330 0.0598
2013-08-08 2013-06-30 13F FASTENAL COM 311900104 1,222,680 55,985
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.