Form 4: FAST director acquires 2,000 shares via option exercise

Rhea-AI Filing Summary

Fastenal (FAST) director reported an option exercise on 10/14/2025. The filing shows a stock option (right to buy) with a $13.75 exercise price converted into 2,000 common shares. Table I lists the acquired common stock at a reported price of $43.195.

After the transaction, beneficial ownership is 54,190 shares held directly and 13,008 shares held indirectly in a 401(k) plan. The reporting person also lists 14,948 derivative securities (options) beneficially owned following the transaction. Explanatory notes indicate prior 2-for-1 stock splits and that direct holdings include shares in a revocable trust and a self-directed IRA.

Insider Trade Summary

2,000 shares exercised/converted

Mixed 3 txns

Insider Ancius Michael J

Role Director

Type	Security	Shares	Price	Value
Exercise	Stock Option (Right to Buy)	2,000	$0.00	--
Exercise	Common Stock	2,000	$43.195	$86K
holding	Common Stock	--	--	--

Holdings After Transaction: Stock Option (Right to Buy) — 14,948 shares (Direct); Common Stock — 54,190 shares (Direct); Common Stock — 13,008 shares (Indirect, Held in 401(K) Plan)

Footnotes (1)

1. On May 22, 2019 and May 21, 2025, the Common Stock of Fastenal Company split 2-for-1 and the amounts reported have been adjusted to reflect the stock split. This amount includes 42,168 shares held in a revocable trust over which the reporting person and his wife share voting and investment power and 12,022 shares held in the reporting person's self-directed IRA. Shares maintained in a Retirement Savings 401(K) Plan administered by his employer. The option was issued to the reporting person pursuant to the Fastenal Company Non-employee Director Stock Option Plan and in connection with his annual director compensation whereby the option is immediately exercisable.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Ancius Michael J

(Last) (First) (Middle)

2001 THEURER BOULEVARD

(Street)

WINONA MN 55987

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
FASTENAL CO [ FAST ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
10/14/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	10/14/2025		M		2,000	A	$43.195	54,190(1)(2)	D
Common Stock								13,008(1)(3)	I	Held in 401(K) Plan

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (Right to Buy)(4)	$13.75(1)	10/14/2025		M			2,000(1)	01/02/2018(4)	12/31/2027	Common Stock	2,000(1)	$0	14,948(1)	D

Explanation of Responses:

1. On May 22, 2019 and May 21, 2025, the Common Stock of Fastenal Company split 2-for-1 and the amounts reported have been adjusted to reflect the stock split.

2. This amount includes 42,168 shares held in a revocable trust over which the reporting person and his wife share voting and investment power and 12,022 shares held in the reporting person's self-directed IRA.

3. Shares maintained in a Retirement Savings 401(K) Plan administered by his employer.

4. The option was issued to the reporting person pursuant to the Fastenal Company Non-employee Director Stock Option Plan and in connection with his annual director compensation whereby the option is immediately exercisable.

Remarks:

	/s/ John J. Milek, Attorney-in-Fact	10/16/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did Fastenal (FAST) disclose in this Form 4?

A director exercised a stock option for 2,000 shares on 10/14/2025, converting options with a $13.75 exercise price into common stock listed at $43.195.

How many Fastenal shares does the reporting person own after the transaction?

Beneficial ownership totals 54,190 shares directly and 13,008 shares indirectly in a 401(k) plan.

How many Fastenal options remain after this exercise?

The filing shows 14,948 derivative securities (stock options) beneficially owned following the transaction.

What is the relationship of the reporting person to Fastenal (FAST)?

The reporting person is a Director.

Does the filing mention stock splits affecting reported amounts?

Yes. It notes 2-for-1 splits on May 22, 2019 and May 21, 2025, and amounts have been adjusted accordingly.

How are the director’s direct holdings composed?

Direct holdings include shares in a revocable trust (with shared voting/investment power) and shares in a self-directed IRA.