[6-K] PURPLE BIOTECH LTD. Current Report (Foreign Issuer)

Rhea-AI Filing Summary

Purple Biotech Ltd. furnished a Form 6-K announcing that, on November 14, 2025, it issued a press release titled “Purple Biotech Reports Third Quarter 2025 Financial Results and Provides Business Update,” attached as Exhibit 99.1.

The Form 6-K, including all exhibits, is incorporated by reference into the company’s existing Form F-3 and Form S-8 registration statements, making it part of those filings from the date of submission, to the extent not superseded by later reports.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

Report of Foreign Private Issuer

Pursuant to Rule 13a-16 or 15d-16

of the Securities Exchange Act of 1934

For the month of November 2025

Commission File Number: 001-37643

PURPLE BIOTECH LTD.

(Translation of registrant’s name into English)

4 Oppenheimer Street, Science Park, Rehovot 7670104, Israel

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F. 

Form 20-F ☒        Form 40-F ☐

Purple Biotech

On November 14, 2025, Purple Biotech Ltd. (the “Registrant”) issued a press release “Purple Biotech Reports Third Quarter 2025 Financial Results and Provides Business Update”, which is attached hereto as Exhibit 99.1.

Exhibit
99.1		Purple Biotech Reports Third Quarter 2025 Financial Results and Provides Business Update

Incorporation by Reference

This Report on Form 6-K, including all exhibits attached hereto, is hereby incorporated by reference into each of the Registrant’s Registration Statement on Form S-8 filed with the Securities and Exchange Commission on May 20, 2016 (Registration file number 333-211478), the Registrant’s Registration Statement on Form S-8 filed with the Securities and Exchange Commission on June 6, 2017 (Registration file number 333-218538), the Registrant’s Registration Statement on Form F-3, as amended, originally filed with the Securities and Exchange Commission on July 16, 2018 (Registration file number 333-226195), the Registrant’s Registration Statement on Form S-8 filed with the Securities and Exchange Commission on March 28, 2019 (Registration file number 333-230584), the Registrant’s Registration Statement on Form F-3 filed with the Securities and Exchange Commission on September 16, 2019 (Registration file number 333-233795), the Registrant’s Registration Statement on Form F-3 filed with the Securities and Exchange Commission on May 13, 2020 (Registration file number 333-238229), the Registrant’s Registration Statement on Form S-8 filed with the Securities and Exchange Commission on May 18, 2020 (Registration file number 333-238481), each of the Registrant’s Registration Statements on Form F-3 filed with the Securities and Exchange Commission on July 10, 2020 (Registration file numbers 333-239807 and 333-233793), the Registrant’s Registration Statement on Form S-8 filed with the Securities and Exchange Commission on April 4, 2022 (Registration file number 333-264107), the Registrant’s Registration Statement on Form F-3, originally filed with the Securities and Exchange Commission on December 7, 2022 (Registration file number 333-268710), the Registrant’s Registration Statement on Form F-3 filed with the Securities and Exchange Commission on March 23, 2023 (Registration file number 333-270769), and the Registrant’s Registration Statement on Form F-3, originally  filed with the Securities and Exchange Commission on May 17, 2023 (Registration file number 333-268710), to be a part thereof from the date on which this report is submitted, to the extent not superseded by documents or reports subsequently filed or furnished.

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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. 

November 14, 2025	PURPLE BIOTECH LTD.
	By:	/s/ Gil Efron
		Gil Efron
		Chief Executive Officer

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FAQ

What did Purple Biotech (PPBT) file?

The company furnished a Form 6-K reporting a press release on its third quarter 2025 financial results and business update.

What is included as Exhibit 99.1 in PPBT’s 6-K?

Exhibit 99.1 is the press release titled “Purple Biotech Reports Third Quarter 2025 Financial Results and Provides Business Update.”

When was the press release issued by PPBT?

It was issued on November 14, 2025.

Does this 6-K affect PPBT’s registration statements?

Yes. The 6-K and its exhibits are incorporated by reference into PPBT’s existing Form F-3 and Form S-8 registration statements.

From when does the incorporation by reference apply?

It applies from the date the report is submitted, to the extent not superseded by later filings.

Which registration forms are referenced?

The filing references multiple Form F-3 and Form S-8 registration statements previously filed by the company.