Fastenal Company
US ˙ NasdaqGS ˙ US3119001044

SecurityFAST / Fastenal Company
InstitutionParallel Advisors, LLC
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Parallel Advisors, LLC ownership in FAST / Fastenal Company

On June 2, 2026 - Parallel Advisors, LLC filed a 13F-HR/A form disclosing ownership of 0 shares of Fastenal Company (US:FAST) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 28,025 shares of Fastenal Company. This represents a change in shares of -100.00% during the quarter. The current value of the position is $0 USD.

Parallel Advisors, LLC 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 0 of underlying shares valued at $0 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.

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)
2026-06-02 2026-03-31 13F/A-1 FASTENAL Stock 311900104 0 -28,025 -100.00 0 -100.00
2026-02-11 2025-12-31 13F FASTENAL Stock 311900104 28,025 -1,850 -6.19 1,125 -23.28 0.0206
2025-11-13 2025-09-30 13F FASTENAL Stock 311900104 29,875 926 3.20 1,465 20.58 0.0268
2025-07-08 2025-06-30 13F FASTENAL Stock 311900104 28,949 15,091 108.90 1,216 13.13 0.0243
2025-04-08 2025-03-31 13F FASTENAL Stock 311900104 13,858 650 4.92 1,074 13.17 0.0242
2025-02-10 2024-12-31 13F FASTENAL Stock 311900104 13,208 704 5.63 950 6.27 0.0214
2024-11-13 2024-09-30 13F FASTENAL Stock 311900104 12,504 1,070 9.36 893 24.37 0.0210
2024-08-08 2024-06-30 13F FASTENAL Stock 311900104 11,434 -747 -6.13 719 -23.54 0.0184
2024-05-06 2024-03-31 13F FASTENAL Stock 311900104 12,181 1,696 16.18 940 38.29 0.0255
2024-02-12 2023-12-31 13F FASTENAL Stock 311900104 10,485 2,495 31.23 679 55.73 0.0201
2024-05-20 2023-09-30 13F/A-1 FASTENAL Stock 311900104 7,990 357 4.68 437 -3.11 0.0145
2023-11-14 2023-09-30 13F FASTENAL Stock 311900104 7,990 357 437 0.0145
2024-05-20 2023-06-30 13F/A-1 FASTENAL Stock 311900104 7,633 238 3.22 450 13.07 0.0145
2023-08-04 2023-06-30 13F FASTENAL Stock 311900104 7,633 238 450 0.0145
2024-05-20 2023-03-31 13F/A-1 FASTENAL Stock 311900104 7,395 1,010 15.82 399 31.79 0.0134
2023-04-25 2023-03-31 13F FASTENAL Stock 311900104 7,395 1,010 399 0.0134
2023-02-06 2022-12-31 13F FASTENAL Stock 311900104 6,385 471 7.96 302 11.03 0.0131
2022-11-10 2022-09-30 13F FASTENAL Stock 311900104 5,914 -156 -2.57 272 -10.23 0.0125
2022-08-01 2022-06-30 13F FASTENAL Stock 311900104 6,070 144 2.43 303 -14.41 0.0139
2022-04-28 2022-03-31 13F FASTENAL Stock 311900104 5,926 -451 -7.07 354 -13.45 0.0140
2022-01-20 2021-12-31 13F FASTENAL Stock 311900104 6,377 888 16.18 409 44.52 0.0152
2021-11-02 2021-09-30 13F/A-1 FASTENAL Stock 311900104 5,489 616 12.64 283 11.86 0.0114
2021-08-06 2021-06-30 13F FASTENAL Stock 311900104 4,873 374 8.31 253 11.95 0.0107
2021-04-23 2021-03-31 13F FASTENAL Stock 311900104 4,499 666 17.38 226 20.86 0.0107
2021-02-02 2020-12-31 13F FASTENAL Stock 311900104 3,833 202 5.56 187 14.02 0.0102
2020-10-27 2020-09-30 13F FASTENAL Stock 311900104 3,631 146 4.19 164 10.07 0.0101
2020-07-16 2020-06-30 13F FASTENAL Stock 311900104 3,485 325 10.28 149 52.04 0.0097
2020-04-27 2020-03-31 13F FASTENAL Stock 311900104 3,160 811 34.53 98 12.64 0.0079
2020-01-30 2019-12-31 13F FASTENAL Stock 311900104 2,349 738 45.81 87 64.15 0.0065
2019-11-01 2019-09-30 13F FASTENAL Stock 311900104 1,611 -380 -19.09 53 -18.46 0.0045
2019-08-05 2019-06-30 13F FASTENAL Stock 311900104 1,991 818 69.74 65 -13.33 0.0063
2019-05-01 2019-03-31 13F FASTENAL Stock 311900104 1,173 69 6.25 75 31.58 0.0084
2019-02-05 2018-12-31 13F FASTENAL Stock 311900104 1,104 -156 -12.38 57 -21.92 0.0079
2018-11-01 2018-09-30 13F FASTENAL Stock 311900104 1,260 -29 -2.25 73 17.74 0.0091
2018-07-30 2018-06-30 13F FASTENAL Stock 311900104 1,289 995 338.44 62 287.50 0.0089
2018-05-08 2018-03-31 13F FASTENAL Stock 311900104 294 0 0.00 16 0.00 0.0025
2018-02-13 2017-12-31 13F FASTENAL CO COM Stock 311900104 294 0 0.00 16 14.29 0.0026
2017-11-15 2017-09-30 13F/A-1 FASTENAL CO COM Stock 311900104 294 -89 -23.24 14 -12.50 0.0024
2017-08-07 2017-06-30 13F FASTENAL CO COM Stock 311900104 383 30 8.50 16 0.00 0.0030
2017-05-12 2017-03-31 13F/A-1 FASTENAL CO COM Stock 311900104 353 258 271.58 16 300.00 0.0032
2017-05-12 2017-03-31 13F FASTENAL CO COM Stock 311900104 353 16
2017-02-14 2016-12-31 13F FASTENAL CO COM Stock 311900104 95 95 4 0.0009
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
(%)
2022-01-19 2021-12-31 13F FASTENAL Stock Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-10-22 2021-09-30 13F FASTENAL Stock Call 4,873 253 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.