Fastenal Company
MX ˙ BMV ˙ US3119001044
SecurityMX:FAST / Fastenal Company
InstitutionCapital Fund Management S.a.
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Capital Fund Management S.a. ownership in FAST / Fastenal Company

On May 14, 2026 - Capital Fund Management S.a. filed a 13F-HR form disclosing ownership of 0 shares of Fastenal Company (MX:FAST) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 196,602 shares of Fastenal Company. This represents a change in shares of -100.00% during the quarter.

Capital Fund Management S.a. has a history of taking positions in derivatives of the underlying security (FAST) in the form of stock options. The firm currently holds call options representing 68,800 of underlying shares valued at $3,192,320 USD and put options representing 41,600 of underlying shares valued at $1,930,240 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:FAST / Fastenal Company Historical Put/Call Ratio
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 CO COM FASTENAL CO COM 311900104 0 -196,602 -100.00 0 -100.00
2026-02-17 2025-12-31 13F FASTENAL CO COM FASTENAL CO COM 311900104 196,602 196,602 7,890 0.0219
2024-08-13 2024-06-30 13F FASTENAL COM 311900104 0 -16,048 -100.00 0 -100.00
2024-05-15 2024-03-31 13F FASTENAL COM 311900104 16,048 16,048 1,238 0.0036
2021-08-12 2021-06-30 13F FASTENAL COM 311900104 0 -28,895 -100.00 0 -100.00
2021-05-14 2021-03-31 13F FASTENAL COM 311900104 28,895 28,895 1,453 0.0160
2020-05-13 2020-03-31 13F Fastenal COM 311900104 0 -15,169 -100.00 0 -100.00
2020-02-13 2019-12-31 13F Fastenal COM 311900104 15,169 -22,574 -59.81 560 -54.58 0.0044
2019-11-13 2019-09-30 13F Fastenal COM 311900104 37,743 37,743 1,233 0.0111
2019-02-13 2018-12-31 13F Fastenal COM 311900104 0 -168,335 -100.00 0 -100.00
2018-11-14 2018-09-30 13F Fastenal COM 311900104 168,335 168,335 9,767 0.0533
2017-11-13 2017-09-30 13F Fastenal COM 311900104 0 -364,324 -100.00 0 -100.00
2017-08-10 2017-06-30 13F Fastenal COM 311900104 364,324 364,324 15,859 0.1279
2017-02-08 2016-12-31 13F Fastenal COM 311900104 0 -140,875 -100.00 0 -100.00
2016-10-31 2016-09-30 13F Fastenal COM 311900104 140,875 -252,845 -64.22 5,886 -66.32 0.0540
2016-07-27 2016-06-30 13F Fastenal COM 311900104 393,720 393,720 0.00 17,477 0.1637
2016-05-02 2016-03-31 13F Fastenal COM 311900104 0 0 0 0.0000
2016-01-28 2015-12-31 13F Fastenal COM 311900104 0 0 0 0.0000
2015-10-27 2015-09-30 13F Fastenal COM 311900104 0 -165,632 -100.00 0 -100.00
2015-07-28 2015-06-30 13F Fastenal COM 311900104 165,632 9,415 6.03 6,986 7.93 0.0886
2015-04-28 2015-03-31 13F Fastenal COM 311900104 156,217 151,913 3,529.58 6,473 3,073.04 0.0883
2014-01-31 2013-12-31 13F Fastenal COM 311900104 4,304 -74,793 -94.56 204 -94.38 0.0025
2013-07-31 2013-06-30 13F Fastenal COM 311900104 79,097 79,097 3,627 0.0554
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-14 2026-03-31 13F FASTENAL CO COM FASTENAL CO COM Call 68,800 -24.40 3,192 -12.57 n/a n/a n/a
2026-02-17 2025-12-31 13F FASTENAL CO COM FASTENAL CO COM Call 91,000 -13.17 3,652 -28.96 n/a n/a n/a
2025-11-13 2025-09-30 13F FASTENAL COM Call 104,800 120.17 5,139 157.08 n/a n/a n/a
2025-08-13 2025-06-30 13F FASTENAL COM Call 47,600 -9.33 1,999 -50.90 n/a n/a n/a
2025-05-14 2025-03-31 13F FASTENAL COM Call 52,500 -64.72 4,071 -61.95 n/a n/a n/a
2025-02-13 2024-12-31 13F FASTENAL COM Call 148,800 -40.60 10,700 -40.19 n/a n/a n/a
2024-11-13 2024-09-30 13F FASTENAL COM Call 250,500 23.89 17,891 40.80 n/a n/a n/a
2024-08-13 2024-06-30 13F FASTENAL COM Call 202,200 46.42 12,706 19.27 n/a n/a n/a
2024-05-15 2024-03-31 13F FASTENAL COM Call 138,100 260.57 10,653 329.56 n/a n/a n/a
2024-02-14 2023-12-31 13F FASTENAL COM Call 38,300 -63.31 2,481 -56.52 n/a n/a n/a
2023-11-14 2023-09-30 13F FASTENAL COM Call 104,400 -5.26 5,704 -12.25 n/a n/a n/a
2023-08-14 2023-06-30 13F FASTENAL COM Call 110,200 46.35 6,501 60.06 n/a n/a n/a
2023-05-15 2023-03-31 13F FASTENAL COM Call 75,300 82.32 4,062 107.83 n/a n/a n/a
2023-02-13 2022-12-31 13F FASTENAL COM Call 41,300 27.86 1,954 31.41 n/a n/a n/a
2022-11-14 2022-09-30 13F FASTENAL COM Call 32,300 8.75 1,487 0.34 n/a n/a n/a
2022-08-12 2022-06-30 13F FASTENAL COM Call 29,700 -25.19 1,483 -37.15 n/a n/a n/a
2022-05-12 2022-03-31 13F FASTENAL COM Call 39,700 -1.24 2,358 -8.43 n/a n/a n/a
2022-02-10 2021-12-31 13F FASTENAL COM Call 40,200 2,575 n/a n/a n/a
2021-05-14 2021-03-31 13F FASTENAL COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-12 2020-12-31 13F FASTENAL COM Call 118,400 -21.85 5,781 -15.37 n/a n/a n/a
2020-11-13 2020-09-30 13F FASTENAL COM Call 151,500 6,831 n/a n/a n/a
2020-05-13 2020-03-31 13F Fastenal COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-13 2019-12-31 13F Fastenal COM Call 10,800 -36.47 399 -28.11 n/a n/a n/a
2019-11-13 2019-09-30 13F Fastenal COM Call 17,000 -39.50 555 -39.41 n/a n/a n/a
2019-08-12 2019-06-30 13F Fastenal COM Call 28,100 269.74 916 87.32 n/a n/a n/a
2019-05-13 2019-03-31 13F/A Fastenal COM Call 7,600 489 n/a n/a n/a
2018-08-14 2018-06-30 13F Fastenal COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-05-15 2018-03-31 13F Fastenal COM Call 13,300 101.52 726 101.11 n/a n/a n/a
2018-02-09 2017-12-31 13F Fastenal COM Call 6,600 -32.65 361 -19.24 n/a n/a n/a
2017-11-13 2017-09-30 13F Fastenal COM Call 9,800 -58.47 447 -56.48 n/a n/a n/a
2017-08-10 2017-06-30 13F Fastenal COM Call 23,600 2.61 1,027 -13.33 n/a n/a n/a
2017-05-03 2017-03-31 13F Fastenal COM Call 23,000 109.09 1,185 129.21 n/a n/a n/a
2017-02-08 2016-12-31 13F Fastenal COM Call 11,000 -40.22 517 -40.85 n/a n/a n/a
2014-01-31 2013-12-31 13F Fastenal COM Call 18,400 -12.38 874 -17.16 n/a n/a n/a
2013-10-31 2013-09-30 13F Fastenal COM Call 21,000 1,055 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-14 2026-03-31 13F FASTENAL CO COM FASTENAL CO COM Put 41,600 -67.27 1,930 -62.16 n/a n/a n/a
2026-02-17 2025-12-31 13F FASTENAL CO COM FASTENAL CO COM Put 127,100 10.91 5,101 -9.24 n/a n/a n/a
2025-11-13 2025-09-30 13F FASTENAL COM Put 114,600 162.24 5,620 206.21 n/a n/a n/a
2025-08-13 2025-06-30 13F FASTENAL COM Put 43,700 -5.62 1,835 -48.89 n/a n/a n/a
2025-05-14 2025-03-31 13F FASTENAL COM Put 46,300 -60.12 3,591 -57.00 n/a n/a n/a
2025-02-13 2024-12-31 13F FASTENAL COM Put 116,100 -23.11 8,349 -22.59 n/a n/a n/a
2024-11-13 2024-09-30 13F FASTENAL COM Put 151,000 14.22 10,784 29.82 n/a n/a n/a
2024-08-13 2024-06-30 13F FASTENAL COM Put 132,200 -0.38 8,307 -18.85 n/a n/a n/a
2024-05-15 2024-03-31 13F FASTENAL COM Put 132,700 375.63 10,236 466.46 n/a n/a n/a
2024-02-14 2023-12-31 13F FASTENAL COM Put 27,900 -69.17 1,807 -63.45 n/a n/a n/a
2023-11-14 2023-09-30 13F FASTENAL COM Put 90,500 -11.71 4,945 -18.23 n/a n/a n/a
2023-08-14 2023-06-30 13F FASTENAL COM Put 102,500 3.85 6,046 13.58 n/a n/a n/a
2023-05-15 2023-03-31 13F FASTENAL COM Put 98,700 191.15 5,324 231.86 n/a n/a n/a
2023-02-13 2022-12-31 13F FASTENAL COM Put 33,900 46.75 1,604 50.89 n/a n/a n/a
2022-11-14 2022-09-30 13F FASTENAL COM Put 23,100 120.00 1,064 102.86 n/a n/a n/a
2022-08-12 2022-06-30 13F FASTENAL COM Put 10,500 -75.18 524 -79.14 n/a n/a n/a
2022-05-12 2022-03-31 13F FASTENAL COM Put 42,300 -2.76 2,513 -9.83 n/a n/a n/a
2022-02-10 2021-12-31 13F FASTENAL COM Put 43,500 2,787 n/a n/a n/a
2021-05-14 2021-03-31 13F FASTENAL COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-12 2020-12-31 13F FASTENAL COM Put 40,900 293.27 1,997 326.71 n/a n/a n/a
2020-11-13 2020-09-30 13F FASTENAL COM Put 10,400 469 n/a n/a n/a
2020-05-13 2020-03-31 13F Fastenal COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-13 2019-12-31 13F Fastenal COM Put 13,300 -6.99 491 5.14 n/a n/a n/a
2019-11-13 2019-09-30 13F Fastenal COM Put 14,300 7.52 467 7.85 n/a n/a n/a
2019-08-12 2019-06-30 13F Fastenal COM Put 13,300 303.03 433 104.25 n/a n/a n/a
2019-05-13 2019-03-31 13F/A Fastenal COM Put 3,300 -62.07 212 -53.41 n/a n/a n/a
2019-05-13 2019-03-31 13F Fastenal COM Put 8,700 455 n/a n/a n/a
2019-02-13 2018-12-31 13F Fastenal COM Put 8,700 85.11 455 66.67 n/a n/a n/a
2018-11-14 2018-09-30 13F Fastenal COM Put 4,700 6.82 273 28.77 n/a n/a n/a
2018-08-14 2018-06-30 13F Fastenal COM Put 4,400 -60.36 212 -65.02 n/a n/a n/a
2018-05-15 2018-03-31 13F Fastenal COM Put 11,100 -37.64 606 -37.72 n/a n/a n/a
2018-02-09 2017-12-31 13F Fastenal COM Put 17,800 973 n/a n/a n/a
2017-11-13 2017-09-30 13F Fastenal COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2017-08-10 2017-06-30 13F Fastenal COM Put 10,000 435 n/a n/a n/a
2017-05-03 2017-03-31 13F Fastenal COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2017-02-08 2016-12-31 13F Fastenal COM Put 6,900 -62.30 324 -62.72 n/a n/a n/a
2014-01-31 2013-12-31 13F Fastenal COM Put 18,300 13.66 869 7.42 n/a n/a n/a
2013-10-31 2013-09-30 13F Fastenal COM Put 16,100 809 n/a n/a n/a
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.