Company Update

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): June 4, 2020 ELECTRO-SENSORS, INC. (Exact name of Registrant as Specified in its Charter) Minnesota 000-09587 41-0943459 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification No.) 6111 Blue Circle Drive Minnetonka, Minnesota 55343-9108 (Address of Principal Executive Offices) (952) 930-0100 (Registrant’s telephone number, including area code) Not Applicable (Former name or former address, if changed since last report) Securities Registered Pursuant to Section 12(b) of the Act: Title of Each Class Trading Symbol Name of each exchange on which registered Common Stock ELSE Nasdaq Capital Market Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2). Emerging Growth Company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Item 8.01. Other Events As previously disclosed by Electro-Sensors, Inc., a Minnesota corporation (the “Company”) in its Quarterly Report on Form 10-Q for the fiscal period ended March 31, 2020, on May 5, 2020, the Company entered into a U.S. Small Business Administration Paycheck Protection Program promissory note in the principal amount of $645,180 (the “PPP Loan”). The PPP Loan was unsecured and was evidenced by a note in favor of US Bank National Association as the lender. Subsequent to receipt of the loan, the Board of Directors (the “Board”) of the Company continued to monitor the Company’s ongoing performance. As a result, the Board determined that given the strength of the Company’s operations and its possible access to additional capital, the Company would repay the entire amount of the PPP Loan. The Company repaid the PPP Loan in full on June 4, 2020. There were no prepayment penalties in connection with this voluntary prepayment. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized. ELECTRO-SENSORS, INC. Date: June 9, 2020 By: /s/ David L. Klenk David L. Klenk Chief Executive Officer and Chief Financial Officer