Sec Form 4 Filing - LUNDQUIST NICHOLAS J @ FASTENAL CO - 2019-04-25

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 Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL OMB Number: 3235-0287 Expires: November 30, 2011 Estimated average burden hours per response... 0.5

1. Name and Address of Reporting Person LUNDQUIST NICHOLAS J 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) Senior Executive VP (Last) (First) (Middle) 2001 THEURER BOULEVARD 3. Date of Earliest Transaction (MM/DD/YY) 04/25/2019 (Street) WINONA, MN55987 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 04/25/2019 M 37,500 A $ 54 253,500 D Common Stock 04/25/2019 S 37,500 D $ 70.4848 216,000 D Common Stock 28,000 I Owned by Spouse Common Stock 8,470 ( 2 ) I Held in 401(K) Plan Common Stock 512 ( 3 ) I Owned by father

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 7. Title and Amount of Underlying Securities (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) $ 54 04/25/2019 M 37,500 ( 1 ) 05/31/2021 Common Stock 37,500 $ 0 0 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other LUNDQUIST NICHOLAS J 2001 THEURER BOULEVARD WINONA, MN55987 Senior Executive VP Signatures /s/ John Milek, Attorney-in-Fact 04/29/2019 Signature of Reporting Person Date

Explanation of Responses:

( 1 )These options 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 remainder vesting and becoming exercisable incrementally (20%, 20% and 10%) each year thereafter. ( 2 )Shares attributed to reporting person's account within issuer's 401(K) Plan as of April 25, 2019 and includes 101 shares added to the account since the reporting person's prior holdings report filed on February 1, 2019. ( 3 )Shares are owned by reporting person's father and the reporting person, along with his siblings, were provided a power of attorney in April of 2018 to share, among other things, investment and voting power over these shares. Reporting person disclaims beneficial ownership over these shares.

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.