Fastenal Co (FAST) director exercises 1,500 stock options and updates holdings

Rhea-AI Filing Summary

Fastenal Co director reported exercising stock options to acquire 1,500 shares of common stock on 12/12/2025, coded as an option exercise (transaction code M) at a reported price of $42.01. Following this transaction, the director beneficially owns 57,690 common shares directly and 13,008 shares indirectly through a 401(k) plan. The direct holdings include shares in a revocable trust shared with the director’s spouse and in a self-directed IRA, and the option exercise reduced the related stock option grant, which had an exercise price of $13.75, leaving 11,448 derivative securities outstanding.

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

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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)
12/12/2025

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	12/12/2025		M		1,500	A	$42.01	57,690	D(1)
Common Stock								13,008	I(2)	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)	$13.75	12/12/2025		M			1,500	01/02/2018(3)	12/31/2027	Common Stock	1,500	$0	11,448	D

Explanation of Responses:

1. The amount includes 45,668 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 reporting person's self-directed IRA.

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

3. 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 was immediately exercisable.

Remarks:

	/s/ John J. Milek, Attorney-in-Fact	12/15/2025
	** 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 insider transaction did Fastenal (FAST) disclose in this Form 4?

A Fastenal Co director reported exercising stock options, acquiring 1,500 shares of common stock on 12/12/2025 under transaction code M (option exercise).

How many Fastenal (FAST) shares does the director own after the reported transaction?

After the transaction, the director beneficially owns 57,690 Fastenal common shares directly and 13,008 shares indirectly through a 401(k) Retirement Savings Plan.

What were the key terms of the Fastenal (FAST) stock option exercised?

The exercised instrument was a Stock Option (Right to Buy) with an exercise price of $13.75 per share, covering 1,500 underlying common shares, and an expiration date of 12/31/2027.

What price was reported for the Fastenal (FAST) common stock acquired?

The Form 4 reports that the 1,500 common shares acquired on 12/12/2025 had a transaction price of $42.01.

How many Fastenal (FAST) stock options does the director hold after this exercise?

Following the option exercise, the director holds 11,448 derivative securities (stock options) directly, as shown in Table II.

How are the director’s direct Fastenal (FAST) share holdings structured?

The direct holdings include 45,668 shares in a revocable trust over which the director and spouse share voting and investment power, and 12,022 shares in the director’s self-directed IRA.