Donnalee Kathleen Papenfuss - 05 Jun 2025 Form 4 Insider Report for FASTENAL CO (FAST)

Role: EVP-Strategy and Communication
Signature: /s/ John J. Milek, Attorney-in-Fact
Issuer symbol: FAST
Transactions as of: 05 Jun 2025
Net transactions value: -$84,522
Form type: 4
Filing time: 09 Jun 2025, 16:01:33 UTC
Previous filing: 06 Jan 2025
Next filing: 06 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Papenfuss Donnalee Kathleen	EVP-Strategy and Communication	26753 COUNTY ROAD 3, WINONA	/s/ John J. Milek, Attorney-in-Fact	09 Jun 2025	0002043506

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	FAST	Common Stock	Options Exercise	$18,706	+1,592		$11.75	1,592	05 Jun 2025	Direct
transaction	FAST	Common Stock	Sale	$65,650	-1,592	-100%	$41.24	0	05 Jun 2025	Direct
transaction	FAST	Common Stock	Options Exercise	$18,755	+1,364		$13.75	1,364	05 Jun 2025	Direct
transaction	FAST	Common Stock	Sale	$56,334	-1,364	-100%	$41.30	0	05 Jun 2025	Direct
holding	FAST	Common Stock						466	05 Jun 2025	Held in 401(K) Plan	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	FAST	Employee Stock Option (Right to Buy)	Options Exercise	$0	-1,592	-100%	$0.000000	0	05 Jun 2025	Common Stock	1,592	$11.75	Direct	F2, F3
transaction	FAST	Employee Stock Option (Right to Buy)	Options Exercise	$0	-1,364	-50%	$0.000000	1,364	05 Jun 2025	Common Stock	1,364	$13.75	Direct	F2, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Shares attributed to reporting person's account within issuer's 401(K) Plan and includes an additional 152 (adjusted for stock split on 5/21/2025) shares acquired since the reporting person's Form 3 filed on 11/6/2024.
F2	The option was previously reported in a Form 3 filing on 11/6/2024 and the amounts reported on this Form 4 are adjusted to reflect a 2-for-1 stock split on May 21, 2025.
F3	The option will vest and become exercisable over a period of eight years, with 25% of the option vesting and becoming exercisable two year after the relevant vesting period, and the remainder vesting and becoming exercisable proportionately (12.5%) each year thereafter.