Fastenal Company
MX ˙ BMV ˙ US3119001044
SecurityMX:FAST / Fastenal Company
InstitutionPeak6 Llc
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Peak6 Llc ownership in FAST / Fastenal Company

On March 12, 2026 - Peak6 Llc filed a 13F-HR/A form disclosing ownership of 0 shares of Fastenal Company (MX:FAST) valued at $0 USD as of December 31, 2025. The entity filed a previous 13F-HR/A on March 30, 2026 disclosing 14,405 shares of Fastenal Company. This represents a change in shares of -100.00% during the quarter.

Peak6 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 202,200 of underlying shares valued at $9,382,080 USD and put options representing 8,400 of underlying shares valued at $389,760 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)
2026-03-12 2025-12-31 13F/A-1 FASTENAL COM 311900104 0 -14,405 -100.00 0 -100.00
2026-02-13 2025-12-31 13F FASTENAL COM 311900104 0 -14,405 0
2026-03-30 2025-09-30 13F/A-1 FASTENAL COM 311900104 14,405 14,405 706 0.0010
2025-11-14 2025-09-30 13F FASTENAL COM 311900104 14,405 14,405 706 0.0010
2026-03-26 2025-06-30 13F/A-2 FASTENAL COM 311900104 0 -9,267 -100.00 0 -100.00
2025-11-13 2025-06-30 13F/A-1 FASTENAL COM 311900104 0 -9,267 0
2025-08-14 2025-06-30 13F FASTENAL COM 311900104 0 -9,267 0
2025-05-14 2025-03-31 13F FASTENAL COM 311900104 9,267 -127,691 -93.23 719 -92.71 0.0016
2025-02-13 2024-12-31 13F FASTENAL COM 311900104 136,958 136,958 9,849 0.0207
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 COM Call 202,200 158.57 9,382 198.98 n/a n/a n/a
2026-03-12 2025-12-31 13F/A FASTENAL COM Call 78,200 104.18 3,138 67.09 n/a n/a n/a
2026-02-13 2025-12-31 13F FASTENAL COM Call 78,200 3,138 n/a n/a n/a
2026-03-30 2025-09-30 13F/A FASTENAL COM Call 38,300 -48.45 1,878 -39.81 n/a n/a n/a
2025-11-14 2025-09-30 13F FASTENAL COM Call 38,300 1,878 n/a n/a n/a
2025-11-13 2025-06-30 13F/A FASTENALCO COM Call 74,300 3,121 n/a n/a n/a
2026-03-26 2025-06-30 13F/A FASTENALCO COM Call 74,300 65.48 3,121 -10.37 n/a n/a n/a
2025-08-14 2025-06-30 13F FASTENALCO COM Call 74,300 3,121 n/a n/a n/a
2025-05-14 2025-03-31 13F FASTENAL COM Call 44,900 -49.21 3,482 -45.23 n/a n/a n/a
2025-02-13 2024-12-31 13F FASTENAL COM Call 88,400 6,357 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 COM Put 8,400 -83.88 390 -81.39 n/a n/a n/a
2026-03-12 2025-12-31 13F/A FASTENAL COM Put 52,100 -62.33 2,091 -69.18 n/a n/a n/a
2026-02-13 2025-12-31 13F FASTENAL COM Put 52,100 2,091 n/a n/a n/a
2026-03-30 2025-09-30 13F/A FASTENAL COM Put 138,300 476.25 6,782 572.82 n/a n/a n/a
2025-11-14 2025-09-30 13F FASTENAL COM Put 138,300 6,782 n/a n/a n/a
2025-11-13 2025-06-30 13F/A FASTENALCO COM Put 24,000 1,008 n/a n/a n/a
2026-03-26 2025-06-30 13F/A FASTENALCO COM Put 24,000 -70.59 1,008 -84.07 n/a n/a n/a
2025-08-14 2025-06-30 13F FASTENALCO COM Put 24,000 1,008 n/a n/a n/a
2025-05-14 2025-03-31 13F FASTENAL COM Put 81,600 -76.62 6,328 -74.78 n/a n/a n/a
2025-02-13 2024-12-31 13F FASTENAL COM Put 349,000 25,097 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.