Navidea Biopharmaceuticals Receives Noncompliance Notice From NYSE American

On August 14, 2018, Navidea Biopharmaceuticals, Inc. (NYSE American: NAVB) ("Navidea” or the "Company”), a company focused on the development of precision immunodiagnostic agents and immunotherapeutics, received a letter from NYSE American LLC ("NYSE American” or the "Exchange”) stating that it is not in compliance with the continued listing standards as set forth in Sections 1003(a)(ii) and 1003(f)(v) of the NYSE American Company Guide (the "Company Guide”). In order to maintain its listing, the Company must submit a plan of compliance by September 14, 2018 addressing how it intends to regain compliance with Section 1003(a)(ii) of the Company Guide by February 14, 2020. If the plan is accepted, the Company may be able to continue its listing but will be subject to periodic reviews by the Exchange. If the plan is not accepted or if it is accepted but the Company is not in compliance with the continued listing standards by February 14, 2020, or if the Company does not make progress consistent with the plan, or if the Company does not regain compliance with Section 1003(f)(v) by February 14, 2019, the Exchange will initiate delisting procedures as appropriate. The Company's management is pursuing options to address the deficiencies and intends to submit a compliance plan on or before the deadline set by the Exchange.

About Navidea

Navidea Biopharmaceuticals, Inc. (NYSE American: NAVB) is a biopharmaceutical company focused on the development of precision immunodiagnostic agents and immunotherapeutics. Navidea is developing multiple precision-targeted products based on its Manocept™ platform to enhance patient care by identifying the sites and pathways of disease and enable better diagnostic accuracy, clinical decision-making, and targeted treatment. Navidea’s Manocept platform is predicated on the ability to specifically target the CD206 mannose receptor expressed on activated macrophages. The Manocept platform serves as the molecular backbone of Tc 99m tilmanocept, the first product developed and commercialized by Navidea based on the platform. The development activities of the Manocept immunotherapeutic platform are being conducted by Navidea in conjunction with its subsidiary, Macrophage Therapeutics, Inc. Navidea’s strategy is to deliver superior growth and shareholder return by bringing to market novel products and advancing the Company’s pipeline through global partnering and commercialization efforts.

For more information, please visit www.navidea.com.

Forward-Looking Statements

This release and any oral statements made with respect to the information contained in this release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends affecting the financial condition of our business. These forward-looking statements are subject to a number of risks, uncertainties and assumptions, including, among other things: general economic and business conditions, both nationally and in our markets; our history of losses and uncertainty of future profitability; the final outcome of the CRG litigation in Texas; our ability to successfully complete research and further development of our drug candidates; the timing, cost and uncertainty of obtaining regulatory approvals of our drug candidates; our ability to successfully commercialize our drug candidates; our expectations and estimates concerning future financial performance, financing plans and the impact of competition; our ability to raise capital sufficient to fund our development and commercialization programs; our ability to implement our growth strategy; anticipated trends in our business; advances in technologies; and other risk factors set forth in this report and detailed in our most recent Annual Report on Form 10-K and other SEC filings. You are urged to carefully review and consider the disclosures found in our SEC filings, which are available at www.sec.gov or at http://ir.navidea.com.

Investors are urged to consider statements that include the words "will,” "may,” "could,” "should,” "plan,” "continue,” "designed,” "goal,” "forecast,” "future,” "believe,” "intend,” "expect,” "anticipate,” "estimate,” "project,” and similar expressions, as well as the negatives of those words or other comparable words, to be uncertain forward-looking statements. You are cautioned not to place undue reliance on any forward-looking statements, any of which could turn out to be incorrect. We undertake no obligation to update publicly or revise any forward-looking statements, whether as a result of new information, future events or otherwise after the date of this report. In light of these risks and uncertainties, the forward-looking events and circumstances discussed in this report may not occur and actual results could differ materially from those anticipated or implied in the forward-looking statements.

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