Fastenal Company
MX ˙ BMV ˙ US3119001044
SecurityMX:FAST / Fastenal Company
InstitutionPrincipal Financial Group Inc
Latest Disclosed Ownership8,746,516 shares
Latest Disclosed Value $ 405,840,011
Principal Financial Group Inc reports 24.40% decrease in ownership of FAST / Fastenal Company

On May 4, 2026 - Principal Financial Group Inc filed a 13F-HR form disclosing ownership of 8,746,516 shares of Fastenal Company (MX:FAST) valued at $405,840,011 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 11,569,456 shares of Fastenal Company. This represents a change in shares of -24.40% 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)
2026-05-04 2026-03-31 13F FASTENAL COM 311900104 8,746,516 -2,822,940 -24.40 405,840 -12.59 0.2167
2026-02-02 2025-12-31 13F FASTENAL COM 311900104 11,569,456 -1,000,535 -7.96 464,284 -24.68 0.2370
2025-11-04 2025-09-30 13F FASTENAL COM 311900104 12,569,991 -517,695 -3.96 616,434 12.14 0.3109
2025-08-08 2025-06-30 13F FASTENAL COM 311900104 13,087,686 6,495,836 98.54 549,684 7.53 0.2906
2025-04-28 2025-03-31 13F FASTENAL COM 311900104 6,591,850 168,830 2.63 511,198 10.68 0.2868
2025-01-31 2024-12-31 13F FASTENAL COM 311900104 6,423,020 -74,080 -1.14 461,879 -0.46 0.2518
2024-10-31 2024-09-30 13F FASTENAL COM 311900104 6,497,100 -303,807 -4.47 464,023 8.58 0.2556
2024-07-29 2024-06-30 13F FASTENAL COM 311900104 6,800,907 -720,898 -9.58 427,369 -26.35 0.2538
2024-04-29 2024-03-31 13F FASTENAL COM 311900104 7,521,805 -132,510 -1.73 580,232 17.04 0.3410
2024-02-07 2023-12-31 13F FASTENAL COM 311900104 7,654,315 -153,966 -1.97 495,770 16.20 0.3161
2023-11-02 2023-09-30 13F FASTENAL COM 311900104 7,808,281 -51,600 -0.66 426,644 -7.98 0.3066
2023-08-07 2023-06-30 13F FASTENAL COM 311900104 7,859,881 -200,535 -2.49 463,654 6.64 0.3169
2023-05-09 2023-03-31 13F FASTENAL COM 311900104 8,060,416 -184,738 -2.24 434,779 11.44 0.3108
2023-02-09 2022-12-31 13F FASTENAL COM 311900104 8,245,154 -296,264 -3.47 390,161 -0.79 0.2938
2022-11-09 2022-09-30 13F FASTENAL COM 311900104 8,541,418 -442,038 -4.92 393,247 -12.31 0.3125
2022-08-10 2022-06-30 13F FASTENAL COM 311900104 8,983,456 8,870,166 7,829.61 448,455 6,563.52 0.3318
2022-05-09 2022-03-31 13F FASTENAL COM 311900104 113,290 -9,010,045 -98.76 6,730 -98.84 0.0027
2022-05-09 2022-03-31 13F FASTENAL COM 311900104 9,140,215 542,929
2022-02-09 2021-12-31 13F FASTENAL COM 311900104 9,123,335 -327,669 -3.47 580,078 18.93 0.3463
2021-11-09 2021-09-30 13F FASTENAL COM 311900104 9,451,004 -225,437 -2.33 487,767 -3.06 0.3181
2021-08-10 2021-06-30 13F FASTENAL COM 311900104 9,676,441 1,405,001 16.99 503,175 20.99 0.3251
2021-05-10 2021-03-31 13F FASTENAL COM 311900104 8,271,440 -134,474 -1.60 415,888 1.32 0.2935
2021-02-23 2020-12-31 13F/A-1 FASTENAL COM 311900104 8,405,914 -152,594 -1.78 410,461 6.36 0.3040
2021-02-08 2020-12-31 13F FASTENAL COM 311900104 8,449,630 -108,878 412,596 162,321.6249
2020-11-06 2020-09-30 13F FASTENAL COM 311900104 8,558,508 -272,512 -3.09 385,903 2.00 0.3247
2020-08-05 2020-06-30 13F FASTENAL COM 311900104 8,831,020 -469,440 -5.05 378,321 30.17 0.3354
2020-05-12 2020-03-31 13F FASTENAL COM 311900104 9,300,460 416,919 4.69 290,640 -11.46 0.3217
2020-02-05 2019-12-31 13F FASTENAL COM 311900104 8,883,541 621,353 7.52 328,247 21.61 0.2735
2019-11-13 2019-09-30 13F FASTENAL COM 311900104 8,262,188 3,171,770 62.31 269,926 62.71 0.2380
2019-08-12 2019-06-30 13F FASTENAL COM 311900104 5,090,418 2,616,721 105.78 165,897 4.28 0.1492
2019-05-10 2019-03-31 13F FASTENAL COM 311900104 2,473,697 -19,791 -0.79 159,083 22.01 0.1482
2019-02-14 2018-12-31 13F FASTENAL COM 311900104 2,493,488 121,413 5.12 130,386 -5.26 0.1390
2018-11-14 2018-09-30 13F FASTENAL COM 311900104 2,372,075 11,195 0.47 137,628 21.12 0.1213
2018-08-13 2018-06-30 13F FASTENAL COM 311900104 2,360,880 -49,060 -2.04 113,629 -13.63 0.1044
2018-05-14 2018-03-31 13F FASTENAL COM 311900104 2,409,940 -14,359 -0.59 131,559 -0.77 0.1264
2018-02-12 2017-12-31 13F FASTENAL COM 311900104 2,424,299 -44,915 -1.82 132,585 17.80 0.1221
2017-11-02 2017-09-30 13F FASTENAL COM 311900104 2,469,214 -24,876 -1.00 112,547 3.67 0.1091
2017-08-08 2017-06-30 13F FASTENAL COM 311900104 2,494,090 121,909 5.14 108,567 -11.13 0.1088
2017-05-11 2017-03-31 13F FASTENAL COM 311900104 2,372,181 20,909 0.89 122,167 10.60 0.1470
2017-02-13 2016-12-31 13F FASTENAL COM 311900104 2,351,272 234,128 11.06 110,462 24.88 0.1401
2016-11-10 2016-09-30 13F FASTENAL COM 311900104 2,117,144 348,347 19.69 88,454 12.66 0.1168
2016-08-09 2016-06-30 13F FASTENAL COM 311900104 1,768,797 -43,646 -2.41 78,517 -11.59 0.1095
2016-05-10 2016-03-31 13F FASTENAL COM 311900104 1,812,443 -85,860 -4.52 88,810 14.61 0.1289
2016-02-09 2015-12-31 13F FASTENAL COM 311900104 1,898,303 -386,008 -16.90 77,489 -7.34 0.1151
2015-11-12 2015-09-30 13F/A-1 FASTENAL COM 311900104 2,284,311 -487,050 -17.57 83,629 -28.46 0.1314
2015-11-09 2015-09-30 13F FASTENAL COM 311900104 2,284,311 83,629
2015-08-10 2015-06-30 13F FASTENAL COM 311900104 2,771,361 -237,158 -7.88 116,896 -6.23 0.1743
2015-05-14 2015-03-31 13F/A-1 FASTENAL COM 311900104 3,008,519 325,250 12.12 124,658 -2.32 0.1857
2015-05-12 2015-03-31 13F FASTENAL COM 311900104 496,962 20,592
2015-02-12 2014-12-31 13F FASTENAL COM 311900104 2,683,269 66,546 2.54 127,616 8.62 0.1983
2014-11-13 2014-09-30 13F FASTENAL COM 311900104 2,616,723 90,230 3.57 117,491 -6.03 0.1993
2014-08-12 2014-06-30 13F FASTENAL COM 311900104 2,526,493 77,242 3.15 125,035 3.51 0.2103
2014-05-13 2014-03-31 13F FASTENAL COM 311900104 2,449,251 426,764 21.10 120,795 25.71 0.2155
2014-02-12 2013-12-31 13F FASTENAL COM 311900104 2,022,487 195,674 10.71 96,089 4.67 0.1793
2013-11-05 2013-09-30 13F FASTENAL COM 311900104 1,826,813 369,227 25.33 91,799 37.37 0.1896
2013-08-12 2013-06-30 13F FASTENAL COM 311900104 1,457,586 1,457,586 66,828 0.1480
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.