Fastenal Company
US ˙ NasdaqGS ˙ US3119001044

SecurityFAST / Fastenal Company
InstitutionNatixis Advisors, L.p.
Latest Disclosed Ownership452,849 shares
Latest Disclosed Value $ 21,012
Natixis Advisors, L.p. reports 10.89% increase in ownership of FAST / Fastenal Company

On May 13, 2026 - Natixis Advisors, L.p. filed a 13F-HR form disclosing ownership of 452,849 shares of Fastenal Company (US:FAST) valued at $21,012,194 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 408,366 shares of Fastenal Company. This represents a change in shares of 10.89% during the quarter. The current value of the position is $21,039,365 USD.

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)
2026-05-13 2026-03-31 13F FASTENAL COM 311900104 452,849 44,483 10.89 21 31.25 0.0292
2026-02-10 2025-12-31 13F FASTENAL COM 311900104 408,366 -136,047 -24.99 16 -38.46 0.0232
2025-11-13 2025-09-30 13F FASTENAL CO COM 311900104 544,413 56,350 11.55 27 30.00 0.0390
2025-08-13 2025-06-30 13F FASTENAL COM 311900104 488,063 290,127 146.58 20 33.33 0.0325
2025-05-08 2025-03-31 13F FASTENAL COM 311900104 197,936 -953 -0.48 15 7.14 0.0284
2025-02-10 2024-12-31 13F FASTENAL COM 311900104 198,889 -6,831 -3.32 14 0.00 0.0267
2024-11-06 2024-09-30 13F FASTENAL COM 311900104 205,720 36,673 21.69 15 40.00 0.0287
2024-08-01 2024-06-30 13F FASTENAL COM 311900104 169,047 -25,696 -13.19 11 -33.33 0.0231
2024-04-25 2024-03-31 13F FASTENAL COM 311900104 194,743 -10,552 -5.14 15 15.38 0.0345
2024-02-06 2023-12-31 13F FASTENAL COM 311900104 205,295 14,141 7.40 13 30.00 0.0350
2023-11-13 2023-09-30 13F FASTENAL COM 311900104 191,154 -2,918 -1.50 10 -9.09 0.0319
2023-08-15 2023-06-30 13F FASTENAL COM 311900104 194,072 2,633 1.38 11 10.00 0.0353
2023-05-11 2023-03-31 13F FASTENAL COM 311900104 191,439 13,558 7.62 10 25.00 0.0355
2023-01-27 2022-12-31 13F FASTENAL COM 311900104 177,881 -4,903 -2.68 8 -99.90 0.0318
2022-11-14 2022-09-30 13F FASTENAL COM 311900104 182,784 -19,513 -9.65 8,415 -16.67 0.0356
2022-08-12 2022-06-30 13F FASTENAL COM 311900104 202,297 20,591 11.33 10,099 -6.43 0.0444
2022-05-12 2022-03-31 13F FASTENAL COM 311900104 181,706 12,863 7.62 10,793 -0.21 0.0412
2022-02-08 2021-12-31 13F FASTENAL COM 311900104 168,843 10,493 6.63 10,816 32.35 0.0413
2021-11-15 2021-09-30 13F FASTENAL COM 311900104 158,350 17,777 12.65 8,172 11.79 0.0336
2021-08-12 2021-06-30 13F FASTENAL COM 311900104 140,573 7,137 5.35 7,310 8.96 0.0341
2021-05-05 2021-03-31 13F FASTENAL COM 311900104 133,436 -5,153 -3.72 6,709 -0.86 0.0350
2021-02-12 2020-12-31 13F FASTENAL COM 311900104 138,589 -34,538 -19.95 6,767 -13.31 0.0390
2020-11-12 2020-09-30 13F FASTENAL COM 311900104 173,127 27,635 18.99 7,806 25.24 0.0491
2020-08-11 2020-06-30 13F FASTENAL CO COM COM 311900104 145,492 -5,654 -3.74 6,233 31.97 0.0414
2020-04-27 2020-03-31 13F FASTENAL COM 311900104 151,146 -32,274 -17.60 4,723 -30.31 0.0385
2020-02-10 2019-12-31 13F FASTENAL COM 311900104 183,420 -10,701 -5.51 6,777 6.86 0.0478
2019-11-12 2019-09-30 13F FASTENAL COM 311900104 194,121 -7,542 -3.74 6,342 -3.50 0.0503
2019-08-12 2019-06-30 13F FASTENAL COM 311900104 201,663 103,358 105.14 6,572 3.95 0.0537
2019-05-15 2019-03-31 13F/A-1 FASTENAL COM 311900104 98,305 -8,308 -7.79 6,322 13.42 0.0553
2019-05-15 2019-03-31 13F FASTENAL COM 311900104 98,305 -8,308 6,322
2019-02-13 2018-12-31 13F/A-1 FASTENAL COM 311900104 106,613 25,688 31.74 5,574 18.72 0.0550
2019-02-13 2018-12-31 13F FASTENAL COM 311900104 106,613 25,688 5,574
2018-11-13 2018-09-30 13F FASTENAL COM 311900104 80,925 -38,374 -32.17 4,695 -18.22 0.0413
2018-08-14 2018-06-30 13F/A-1 FASTENAL COM 311900104 119,299 -175,972 -59.60 5,741 -64.38 0.0548
2018-08-14 2018-06-30 13F FASTENAL COM 311900104 119,299 5,741
2018-05-10 2018-03-31 13F FASTENAL COM 311900104 295,271 -1,945 -0.65 16,119 -0.83 0.1591
2018-02-14 2017-12-31 13F FASTENAL COM 311900104 297,216 28,019 10.41 16,254 32.48 0.1655
2017-11-14 2017-09-30 13F FASTENAL COM 311900104 269,197 37,213 16.04 12,269 21.50 0.1296
2017-07-27 2017-06-30 13F FASTENAL COM 311900104 231,984 106,599 85.02 10,098 56.39 0.1093
2017-05-12 2017-03-31 13F FASTENAL COM 311900104 125,385 -3,144 -2.45 6,457 6.94 0.0715
2017-02-07 2016-12-31 13F FASTENAL COM 311900104 128,529 113,453 752.54 6,038 858.41 0.0726
2016-11-04 2016-09-30 13F FASTENAL COM 311900104 15,076 -19,623 -56.55 630 -59.09 0.0082
2016-08-01 2016-06-30 13F FASTENAL COM 311900104 34,699 8,448 32.18 1,540 19.75 0.0213
2016-05-06 2016-03-31 13F FASTENAL COM 311900104 26,251 9,050 52.61 1,286 83.19 0.0192
2016-02-12 2015-12-31 13F FASTENAL COM 311900104 17,201 -16,658 -49.20 702 -43.39 0.0115
2015-11-12 2015-09-30 13F FASTENAL COM 311900104 33,859 -1,468 -4.16 1,240 -16.78 0.0215
2015-08-14 2015-06-30 13F FASTENAL COM 311900104 35,327 13,622 62.76 1,490 65.74 0.0253
2015-05-15 2015-03-31 13F FASTENAL COM 311900104 21,705 -8,664 -28.53 899 -37.74 0.0158
2015-02-05 2014-12-31 13F FASTENAL COM 311900104 30,369 1,986 7.00 1,444 13.34 0.0270
2014-11-03 2014-09-30 13F FASTENAL COM 311900104 28,383 -156 -0.55 1,274 -9.77 0.0256
2014-08-13 2014-06-30 13F FASTENAL COM 311900104 28,539 1,238 4.53 1,412 4.90 0.0202
2014-05-13 2014-03-31 13F FASTENAL COM 311900104 27,301 6,653 32.22 1,346 37.21 0.0207
2014-02-12 2013-12-31 13F FASTENAL COM 311900104 20,648 3,540 20.69 981 14.07 0.0161
2013-10-30 2013-09-30 13F FASTENAL COM 311900104 17,108 -31,081 -64.50 860 -61.02 0.0158
2013-07-19 2013-06-30 13F FASTENAL COM 311900104 48,189 48,189 2,206 0.0440
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.