Fastenal Company
MX ˙ BMV ˙ US3119001044
SecurityMX:FAST / Fastenal Company
InstitutionRockefeller Capital Management L.P.
Latest Disclosed Ownership189,649 shares
Latest Disclosed Value $ 8,799,827
Rockefeller Capital Management L.P. reports 0.97% increase in ownership of FAST / Fastenal Company

On May 14, 2026 - Rockefeller Capital Management L.P. filed a 13F-HR form disclosing ownership of 189,649 shares of Fastenal Company (MX:FAST) valued at $8,799,827 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on March 16, 2026 disclosing 187,824 shares of Fastenal Company. This represents a change in shares of 0.97% 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 189,649 1,825 0.97 8,800 16.74 0.0081
2026-03-16 2025-12-31 13F/A-1 FASTENAL COM 311900104 187,824 29,189 18.40 7,537 -3.11 0.0136
2026-02-14 2025-12-31 13F FASTENAL COM 311900104 187,831 29,196 7,538 0.0069
2025-11-14 2025-09-30 13F FASTENAL COM 311900104 158,635 21,038 15.29 7,779 4.84 0.0152
2025-08-14 2025-06-30 13F/A-1 FASTENAL COM 311900104 137,597 17,221 14.31 7,421 -20.51 0.0163
2025-08-08 2025-06-30 13F FASTENAL COM 311900104 137,597 17,221 7,421 0.0094
2025-05-14 2025-03-31 13F FASTENAL COM 311900104 120,376 32,217 36.54 9,335 47.22 0.0230
2025-02-13 2024-12-31 13F FASTENAL COM 311900104 88,159 4,012 4.77 6,342 5.47 0.0164
2024-11-14 2024-09-30 13F FASTENAL COM 311900104 84,147 -375 -0.44 6,012 13.09 0.0162
2024-08-12 2024-06-30 13F FASTENAL COM 311900104 84,522 -16,284 -16.15 5,317 -31.64 0.0151
2024-05-14 2024-03-31 13F FASTENAL COM 311900104 100,806 17,351 20.79 7,776 43.87 0.0227
2024-02-14 2023-12-31 13F FASTENAL COM 311900104 83,455 1,356 1.65 5,405 20.51 0.0181
2023-11-14 2023-09-30 13F FASTENAL COM 311900104 82,099 -3,101 -3.64 4,486 -10.75 0.0173
2023-08-14 2023-06-30 13F FASTENAL COM 311900104 85,200 26,621 45.44 5,026 167,400.00 0.0195
2023-05-16 2023-03-31 13F FASTENAL COM 311900104 58,579 2,331 4.14 3 -99.89 0.0136
2023-03-06 2022-12-31 13F FASTENAL COM 311900104 56,248 -1,865 -3.21 2,661 -0.52 0.0134
2022-11-02 2022-09-30 13F FASTENAL COM 311900104 58,113 41,652 253.03 2,675 225.82 0.0138
2022-08-12 2022-06-30 13F FASTENAL COM 311900104 16,461 3,282 24.90 821 5.12 0.0044
2022-05-13 2022-03-31 13F FASTENAL COM 311900104 13,179 515 4.07 781 -3.58 0.0038
2022-02-14 2021-12-31 13F FASTENAL COM 311900104 12,664 746 6.26 810 31.92 0.0038
2021-11-12 2021-09-30 13F FASTENAL COM 311900104 11,918 -466 -3.76 614 -4.51 0.0032
2021-08-10 2021-06-30 13F FASTENAL COM 311900104 12,384 -1,968 -13.71 643 -10.82 0.0036
2021-05-11 2021-03-31 13F FASTENAL COM 311900104 14,352 2,181 17.92 721 21.59 0.0049
2021-02-12 2020-12-31 13F FASTENAL COM 311900104 12,171 154 1.28 593 9.61 0.0045
2020-11-13 2020-09-30 13F FASTENAL COM 311900104 12,017 -311 -2.52 541 2.46 0.0051
2020-08-12 2020-06-30 13F FASTENAL COM 311900104 12,328 1,686 15.84 528 58.56 0.0055
2020-05-12 2020-03-31 13F FASTENAL COM 311900104 10,642 -4,292 -28.74 333 -39.67 0.0044
2020-02-07 2019-12-31 13F FASTENAL COM 311900104 14,934 5,714 61.97 552 83.39 0.0069
2019-11-12 2019-09-30 13F FASTENAL COM 311900104 9,220 2,599 39.25 301 39.35 0.0041
2019-08-09 2019-06-30 13F FASTENAL COM 311900104 6,621 -9,078 -57.83 216 -78.61 0.0030
2019-05-10 2019-03-31 13F FASTENAL COM 311900104 15,699 15,699 1,010 0.0144
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.