Fastenal Company
MX ˙ BMV ˙ US3119001044
SecurityMX:FAST / Fastenal Company
InstitutionMorgan Stanley
Latest Disclosed Ownership25,737,011 shares
Latest Disclosed Value $ 1,194,197,402
Morgan Stanley reports 24.61% increase in ownership of FAST / Fastenal Company

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 25,737,011 shares of Fastenal Company (MX:FAST) valued at $1,194,197,402 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 20,654,311 shares of Fastenal Company. This represents a change in shares of 24.61% 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 25,737,011 5,082,700 24.61 1,194,197 44.08 0.0719
2026-05-27 2025-12-31 13F/A-1 FASTENAL COM 311900104 20,654,311 -4,056,334 -16.42 828,858 -31.60 0.0495
2026-02-13 2025-12-31 13F FASTENAL COM 311900104 20,654,311 -4,056,334 828,858 0.0495
2026-05-27 2025-09-30 13F/A-1 FASTENAL COM 311900104 24,710,645 2,103,749 9.31 1,211,810 27.63 0.0734
2025-11-14 2025-09-30 13F FASTENAL COM 311900104 24,710,645 2,103,749 1,211,810 0.0734
2025-08-15 2025-06-30 13F FASTENAL COM 311900104 22,606,896 11,330,420 100.48 949,490 8.58 0.0619
2025-05-15 2025-03-31 13F FASTENAL COM 311900104 11,276,476 729,881 6.92 874,491 15.31 0.0625
2025-05-15 2024-12-31 13F/A-1 FASTENAL COM 311900104 10,546,595 1,108,556 11.75 758,406 12.51 0.0531
2025-02-14 2024-12-31 13F FASTENAL COM 311900104 10,546,595 1,108,556 758,406 0.0531
2025-05-14 2024-09-30 13F/A-2 FASTENAL COM 311900104 9,438,039 113,621 1.22 674,065 15.04 0.0489
2025-02-14 2024-09-30 13F/A-1 FASTENAL COM 311900104 9,438,039 113,621 674,065 0.0489
2024-11-14 2024-09-30 13F FASTENAL COM 311900104 9,438,039 113,621 674,065 0.0058
2025-05-14 2024-06-30 13F/A-2 FASTENAL COM 311900104 9,324,418 290,991 3.22 585,947 -15.91 0.0453
2024-10-17 2024-06-30 13F/A-1 FASTENAL COM 311900104 9,324,418 290,991 585,947 0.0453
2024-08-14 2024-06-30 13F FASTENAL COM 311900104 9,324,418 290,991 585,947 0.0453
2024-10-17 2024-03-31 13F/A-2 FASTENAL COM 311900104 9,033,427 -518,205 -5.43 696,839 12.64 0.0559
2024-08-16 2024-03-31 13F/A-1 FASTENAL COM 311900104 9,033,427 -518,205 696,839 0.0559
2024-05-15 2024-03-31 13F FASTENAL COM 311900104 9,033,427 -518,205 696,839 0.0559
2024-08-16 2023-12-31 13F/A-1 FASTENAL COM 311900104 9,551,632 968,963 11.29 618,659 31.92 0.0545
2024-02-13 2023-12-31 13F FASTENAL COM 311900104 9,551,632 968,963 618,659 0.0545
2023-11-15 2023-09-30 13F FASTENAL COM 311900104 8,582,669 337,168 4.09 468,957 -3.59 0.0477
2023-08-14 2023-06-30 13F FASTENAL COM 311900104 8,245,501 24,145 0.29 486,402 9.68 0.0479
2023-05-15 2023-03-31 13F FASTENAL COM 311900104 8,221,356 -870,851 -9.58 443,460 3.07 0.0475
2023-02-14 2022-12-31 13F FASTENAL COM 311900104 9,092,207 2,492,722 37.77 430,243 41.60 0.0489
2022-11-14 2022-09-30 13F FASTENAL COM 311900104 6,599,485 -581,257 -8.09 303,840 -15.24 0.0414
2022-10-27 2022-06-30 13F/A-1 FASTENAL COM 311900104 7,180,742 3,107,325 76.28 358,462 48.15 0.0465
2022-08-15 2022-06-30 13F FASTENAL COM 311900104 7,180,742 3,107,325 358,462 0.0465
2022-10-27 2022-03-31 13F/A-1 FASTENAL COM 311900104 4,073,417 -1,379,290 -25.30 241,961 -30.73 0.0326
2022-05-13 2022-03-31 13F FASTENAL COM 311900104 4,073,417 -1,379,290 241,961 0.0326
2022-02-14 2021-12-31 13F FASTENAL COM 311900104 5,452,707 405,278 8.03 349,301 34.09 0.0431
2021-11-15 2021-09-30 13F FASTENAL COM 311900104 5,047,429 -630,409 -11.10 260,497 -11.77 0.0351
2021-08-23 2021-06-30 13F/A-1 FASTENAL COM 311900104 5,677,838 2,766,806 95.05 295,246 101.72 0.0389
2021-08-16 2021-06-30 13F FASTENAL COM 311900104 5,677,838 2,766,806 295,246 0.0081
2021-05-17 2021-03-31 13F FASTENAL COM 311900104 2,911,032 -3,157,078 -52.03 146,366 -50.60 0.0215
2021-02-16 2020-12-31 13F FASTENAL COM 311900104 6,068,110 2,204,659 57.06 296,306 70.09 0.0458
2020-11-13 2020-09-30 13F FASTENAL COM 311900104 3,863,451 1,305,165 51.02 174,203 58.95 0.0337
2020-08-14 2020-06-30 13F FASTENAL COM 311900104 2,558,286 -173,858 -6.36 109,597 28.36 0.0243
2020-05-26 2020-03-31 13F/A-1 FASTENAL COM 311900104 2,732,144 432,559 18.81 85,380 0.48 0.0232
2020-05-15 2020-03-31 13F FASTENAL COM 311900104 2,732,144 432,559 85,380 6,558.9639
2020-02-14 2019-12-31 13F FASTENAL COM 311900104 2,299,585 216,066 10.37 84,971 24.83 0.0198
2019-11-14 2019-09-30 13F FASTENAL COM 311900104 2,083,519 -147,199 -6.60 68,069 -6.37 0.0180
2019-08-14 2019-06-30 13F FASTENAL COM 311900104 2,230,718 1,107,793 98.65 72,699 0.67 0.0193
2019-05-15 2019-03-31 13F FASTENAL COM 311900104 1,122,925 -223,697 -16.61 72,217 2.56 0.0204
2019-02-14 2018-12-31 13F FASTENAL COM 311900104 1,346,622 -782,735 -36.76 70,416 -43.00 0.0211
2019-04-23 2018-09-30 13F/A-2 FASTENAL COM 311900104 2,129,357 -54,913 -2.51 123,547 17.52 0.0309
2018-11-20 2018-09-30 13F/A-1 FASTENAL COM 311900104 2,129,357 0 123,547 0.0309
2018-11-14 2018-09-30 13F FASTENAL COM 311900104 2,129,357 -54,913 123,547
2019-04-23 2018-06-30 13F/A-1 FASTENAL COM 311900104 2,184,270 569,836 35.30 105,130 19.29 0.0284
2018-08-14 2018-06-30 13F FASTENAL COM 311900104 2,184,270 569,836 105,130
2019-04-23 2018-03-31 13F/A-1 FASTENAL COM 311900104 1,614,434 194,052 13.66 88,133 13.46 0.0245
2018-05-14 2018-03-31 13F FASTENAL COM 311900104 1,614,434 194,052 88,133
2019-04-23 2017-12-31 13F/A-1 FASTENAL COM 311900104 1,420,382 97,593 7.38 77,679 28.84 0.0213
2018-02-14 2017-12-31 13F FASTENAL COM 311900104 1,420,382 97,593 77,679
2017-11-14 2017-09-30 13F FASTENAL COM 311900104 1,322,789 -774,636 -36.93 60,292 -33.96 0.0181
2017-08-11 2017-06-30 13F FASTENAL COM 311900104 2,097,425 1,043,096 98.93 91,301 68.15 0.0276
2017-05-22 2017-03-31 13F/A-1 FASTENAL COM 311900104 1,054,329 -7,798 -0.73 54,298 8.82 0.0167
2017-05-12 2017-03-31 13F FASTENAL COM 311900104 1,054,329 54,298
2017-02-22 2016-12-31 13F/A-1 FASTENAL COM 311900104 1,062,127 -1,589,070 -59.94 49,899 -54.95 0.0163
2017-02-13 2016-12-31 13F FASTENAL COM 311900104 1,062,127 49,899
2016-11-10 2016-09-30 13F FASTENAL COM 311900104 2,651,197 681,020 34.57 110,766 26.65 0.0378
2016-08-12 2016-06-30 13F FASTENAL COM 311900104 1,970,177 -359,546 -15.43 87,455 -23.39 0.0316
2016-05-12 2016-03-31 13F FASTENAL COM 311900104 2,329,723 1,349,177 137.59 114,155 185.20 0.0439
2016-02-09 2015-12-31 13F FASTENAL COM 311900104 980,546 -24,679 -2.46 40,026 8.76 0.0145
2016-02-08 2015-09-30 13F/A-1 FASTENAL COM 311900104 1,005,225 204,420 25.53 36,801 8.95 0.0136
2015-11-09 2015-09-30 13F FASTENAL COM 311900104 1,005,225 36,801
2015-08-12 2015-06-30 13F FASTENAL COM 311900104 800,805 154,508 23.91 33,778 26.13 0.0117
2015-05-14 2015-03-31 13F FASTENAL COM 311900104 646,297 162,895 33.70 26,781 16.49 0.0099
2015-02-13 2014-12-31 13F FASTENAL COM 311900104 483,402 9,517 2.01 22,990 8.05 0.0084
2014-12-16 2014-09-30 13F/A-1 FASTENAL COM 311900104 473,885 -2,115 -0.44 21,278 -9.33 0.0082
2014-11-14 2014-09-30 13F FASTENAL COM 311900104 473,885 21,278
2014-05-13 2014-03-31 13F FASTENAL COM 311900104 476,000 -50,825 -9.65 23,467 -6.24 0.0098
2014-02-13 2013-12-31 13F FASTENAL COM 311900104 526,825 46,167 9.60 25,030 3.59 0.0106
2013-11-13 2013-09-30 13F FASTENAL CO COM ST COM 311900104 480,658 -300,692 -38.48 24,163 -32.46 0.0114
2013-08-08 2013-06-30 13F FASTENAL CO COM ST COM 311900104 781,350 781,350 35,777 0.0180
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.