Filed pursuant to Rule 424(b)(3)
Registration No. 333-266777
PROSPECTUS SUPPLEMENT No. 48
(to Prospectus dated August 22, 2022)
PARKERVISION, INC.
16,638,353 Shares of Common Stock
This Prospectus Supplement relates to the prospectus dated August 22, 2022, as amended and supplemented from time to time (the “Prospectus”), which permits the resale by the selling shareholders listed in the Prospectus of up to 16,638,353 shares of our common stock, par value $0.01 per share (“Common Stock”) issuable upon conversion of, and for the payment of interest from time to time at our option for convertible promissory notes dated between May 10, 2022 and August 3, 2022 with a fixed conversion price of $0.13 per share.
This Prospectus Supplement is being filed to update and supplement the information previously included in the Prospectus with the information contained in our Current Report on Form 8-K filed with the Securities and Exchange Commission (the “SEC”) on May 21, 2026. Accordingly, we have attached the 8-K to this prospectus supplement. You should read this prospectus supplement together with the prospectus, which is to be delivered with this prospectus supplement.
Any statement contained in the Prospectus shall be deemed to be modified or superseded to the extent that information in this Prospectus Supplement modifies or supersedes such statement. Any statement that is modified or superseded shall not be deemed to constitute a part of the Prospectus except as modified or superseded by this Prospectus Supplement.
This Prospectus Supplement should be read in conjunction with, and may not be delivered or utilized without, the Prospectus.
Investing in our securities involves a high degree of risk. See “Risk Factors” beginning on page 5 of this prospectus for a discussion of information that should be considered in connection with an investment in our securities.
Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved these securities or determined whether this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.
The date of this Prospectus Supplement is May 21, 2026.
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
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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): May 15, 2026
PARKERVISION, INC.
(Exact Name of Registrant as Specified in Charter)
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Florida
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000-22904
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59-2971472
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(State or Other Jurisdiction of Incorporation)
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(Commission File Number)
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(IRS Employer Identification No.)
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4446-1A Hendricks Avenue Suite 354, Jacksonville, Florida
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32207
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(Address of Principal Executive Offices)
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(Zip Code)
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(904) 732-6100
(Registrant’s Telephone Number, Including Area Code)
N/A
(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):
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Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
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Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
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Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
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Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e 4(c))
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Securities registered pursuant to Section 12(b) of the Act:
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Title of Each Class
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Trading Symbol
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Name of Each Exchange on Which Registered
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None
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Indicate by check mark whether the registrant is an emerging growth company as defined in 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 5.02 - Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.
On May 15, 2026, Mr. Lewis Titterton resigned from the Board of Directors (the “Board”) of ParkerVision, Inc. (the "Company"), and from the Audit and Compensation Committees on which he served. Mr. Titterton’s resignation was due to retirement and not due to any disagreement with the Company or any matter relating to the Company's operations, policies or practices.
On May 19, 2026, the Board unanimously appointed Anthony Bowers to fill the director vacancy created by Mr. Titterton’s resignation. Mr. Bowers was also appointed to the Audit and Compensation Committees of the Board.
Mr. Bowers, age 69, has served as Director of Corporate Sales at Intro-act, LLC since 2017. Prior to joining Intro-act, LLC, Mr. Bowers held positions in corporate and institutional sales, including leadership roles at OTR Global and Goldman Sachs. Mr. Bowers holds an MBA in Accounting and Finance from the Wharton School and a bachelor's degree in economics from Amherst College.
There are no arrangements or understandings between Mr. Bowers and any other persons pursuant to which he was selected as a director. There are no transactions involving Mr. Bowers requiring disclosure under Item 404(a) of Regulation S-K.
Mr. Bowers will receive the Company's standard non-employee director compensation arrangements. The Company entered into its standard indemnification agreement with Mr. Bowers.
The Company issued a press release announcing the resignation of Mr. Titterton and the appointment of Mr. Bowers, a copy of which is furnished herewith as Exhibit 99.1.
Item 9.01. Financial Statements and Exhibits.
(d) Exhibits:
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Exhibit
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Description
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Press Release dated May 21, 2026 |
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Cover Page Interactive Data File (embedded within the Inline XBRL document) |
SIGNATURE
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.
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Dated: May 21, 2026
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PARKERVISION, INC.
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By /s/ Cynthia French
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Cynthia French
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Chief Financial Officer
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