FAST Fastenal Company

FORM 4 [ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES                                                                                   
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940                       

1. Name and Address of Reporting Person * Jansen James C	2. Issuer Name and Ticker or Trading Symbol FASTENAL CO [ FAST ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director                    _____ 10% Owner __X__ Officer (give title below)    _____ Other (specify below) Executive Vice President
(Last)          (First)          (Middle) 2001 THEURER BLVD.	3. Date of Earliest Transaction (MM/DD/YYYY) 5/18/2020
(Street) WINONA, MN 55987 (City)        (State)        (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)	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. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. 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	5/18/2020		M		10000	A	$27	35176	D
Common Stock	5/18/2020		S		10000	D	$40.1374	25176 (4)	D
Common Stock	5/18/2020		M		15000	A	$27	40176	D
Common Stock	5/18/2020		S		15000	D	$40.1481	25176 (4)	D
Common Stock								17582 (3)	I	Held in 401(K) Plan
Common Stock								160 (5)	I	Held in custodian account for children

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. 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		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 of Derivative Security: 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
Employee Stock Option (Right to Buy)	$27 (2)	5/18/2020		M			25000 (2)	(1)	5/31/2021	Common Stock	25000 (2)	$0	50000 (2)	D

Explanation of Responses:
(1)	The option will fully vest and become exercisable over a period of five years, with 50% vesting and becoming exercisable halfway through the relevant vesting period, and the remainder vesting and becoming exercisable incrementally (20%, 20% and 10%) each year thereafter.
(2)	The option was previously reported in a filing on 4/21/2016 as covering 37,500 securities at an exercise price of $54 and the amounts reported were adjusted to reflect a 2-for-1 stock split on May 22, 2019.
(3)	On May 22, 2019, the common stock of Fastenal Company split 2-for-1 resulting in the reporting person acquiring indirectly an additional 9,247 shares since his holdings report filed on May 17, 2018, which additional shares consist of split shares and new money.
(4)	On May 22, 2019, the common stock of Fastenal Company split 2-for-1 resulting the reporting person acquiring an additional 12,588 shares since the reporting person's report filed on May 17, 2018.
(5)	On May 22, 2019, the common stock of Fastenal Company split 2-for-1 resulting in the acquisition of an additional 80 shares in this custodian account for his children since the reporting person's prior holdings report filed on January 5, 2017.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Jansen James C 2001 THEURER BLVD. WINONA, MN 55987			Executive Vice President

Signatures
John Milek, Attorney-in-Fact		5/20/2020
**Signature of Reporting Person		Date