8-K

UNITED STATESSECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

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FORM 8-K

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CURRENT REPORT

Pursuant to Section 13 or 15(d) of theSecurities Exchange Act of 1934

January20, 2023 Date of Report (date of earliest event reported)

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OpGen, Inc.

(Exact name of Registrant as specified in its charter)

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9717Key West Ave**, Suite 100** Rockville , MD

20850

(Address of principal executive offices)(Zip code)

(301) 869-9683

(Registrant's telephone number, including area code)

Not Applicable(Former name or former address, if changed since last report)

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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 (see General Instruction A.2. below):

☐  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))

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

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, on February 28, 2022, OpGen, Inc. (the “Company”) received a notice from The Nasdaq Stock Market LLC (“Nasdaq”) notifying the Company that it was not in compliance with the minimum bid price requirement set forth in Nasdaq Listing Rule 5550(a)(2) for continued listing (the “Minimum Bid Price Rule”). The Company was originally provided until August 29, 2022, which was subsequently extended until February 28, 2023, to regain compliance with the Minimum Bid Price Rule.

On January 20, 2023, the Company received written notice from Nasdaq confirming that, for the last ten (10) consecutive business days, from January 5, 2023 to January 19, 2023, the closing bid price of the Company’s common stock had been at $1.00 per share or greater and that, as a result, the Company had regained compliance with the Minimum Bid Price Rule.

Item 9.01  Financial Statements and Exhibits.

(d) Exhibits

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.