false 0000810509 0000810509 2023-06-29 2023-06-29 0000810509 navb:CommonStockCustomMember 2023-06-29 2023-06-29 0000810509 navb:PreferredStockPurchaseRightsCustomMember 2023-06-29 2023-06-29
Washington, D.C. 20549
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
Date of Report (date of earliest event reported):         June 29, 2023 
(Exact name of registrant as specified in its charter)
(State or other jurisdiction
(IRS Employer
of incorporation)
File Number)
Identification No.)
4995 Bradenton Avenue, Suite 240, Dublin, Ohio
(Address of principal executive offices)
(Zip Code)
Registrant's telephone number, including area code
(614) 793-7500
(Former name or former address, if changed since last report.)
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:
Title of each class
Trading Symbol(s)
Name of exchange on which registered
Common Stock
NYSE American
Preferred Stock Purchase Rights
NYSE American
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934.
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 1.01 Entry into a Material Definitive Agreement.
On June 29, 2023, Navidea Biopharmaceuticals, Inc. (the “Company”) entered into a letter agreement with John K. Scott, Jr. to exchange $1,073,600 principal amount of the $2.5 million Term Note dated April 10, 2022 for 12,200,000 shares of Common Stock based on the closing stock price on June 28, 2023.
The above description of the letter agreement does not purport to be complete and is qualified in its entirety by reference to the letter agreement. A copy of the letter agreement is attached as Exhibit 10.1 hereto and is incorporated herein by reference.
Item 3.02 Unregistered Sales of Equity Securities
The information contained in Item 1.01 of this Current Report on Form 8-K is incorporated herein by reference.
The shares of Common Stock were offered and sold in reliance upon the exemption from the registration requirements under Section 4(a)(2) of the Securities Act of 1933, as amended, and/or Rule 506 of Regulation D promulgated thereunder relating to sales by an issuer not involving any public offering and in reliance on similar exemptions under applicable state laws.
Item 8.01 Other Events
On June 30, 2023, the Company issued a press release disclosing the response of its Board of Directors to the unsolicited proposal from ProPhase Labs, Inc. to acquire certain assets of the Company. The press release is being furnished as Exhibit 99.1 hereto and is incorporated by reference herein.
Item. 9.01 Financial Statements and Exhibits
(d) Exhibits.
Exhibit Description
Letter Agreement dated June 29, 2023 between Navidea Biopharmaceuticals, Inc. and John K. Scott, Jr.
Press Release dated June 30, 2023
Cover Page Interactive Data File (embedded within the Inline XBRL document)
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 hereunto duly authorized.
 Navidea Biopharmaceuticals, Inc.
Date: July 6, 2023
/s/ Joseph W. Meyer
Joseph W. Meyer
Director, Finance and Accounting
(Principal Financial Officer)