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Phio Pharmaceuticals Corp.

For the period ended Sep 30, 2025. Filed Nov 13, 2025.

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About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 30, 2025 · Filed Nov 13, 2025

PHIO$0.84+4.8%Stored close · as of Nov 9, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

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Item 6. Exhibits

ITEM 6.EXHIBITS

EXHIBIT INDEX

Exhibit NumberDescriptionDate
3.1Amended and Restated Certificate of Incorporation of Phio Pharmaceuticals Corp.November 19, 2018
3.2Certificate of Amendment to the Amended and Restated Certificate of Incorporation of Phio Pharmaceuticals Corp.January 14, 2020
3.3Certificate of Amendment to the Amended and Restated Certificate of Incorporation of Phio Pharmaceuticals Corp.January 25, 2023
3.4Certificate of Amendment to the Amended and Restated Certificate of Incorporation of Phio Pharmaceuticals Corp.July 2, 2024
3.5Certificate of Designation of Series D Preferred Stock, dated November 16, 2022.November 16, 2022
3.6Amended and Restated Bylaws of Phio Pharmaceuticals Corp.May 2, 2022
4.1Form of Warrant.September 28, 2018
4.2Form of Warrant.April 2, 2020
4.3Form of Common Stock Warrant.January 25, 2021
4.4Form of Placement Agent Warrant.February 17, 2021
4.5Form of Placement Agent Warrant.December 8, 2023
4.6Form of Series C/D Warrant.July 12, 2024
4.7Form of Placement Agent Warrant.July 12, 2024
4.8Form of Placement Agent Warrant.December 20, 2024
4.9Form of Placement Agent Warrant.December 26, 2024
4.10Form of Placement Agent Warrant.January 14, 2025
4.11Form of Placement Agent Warrant.January 15, 2025
4.12Form of Placement Agent Warrant.January 17, 2025
4.13Form of Series J/K WarrantJuly 30, 2025
4.14Form of Placement Agent WarrantJuly 30, 2025
4.15Form of Series A WarrantNovember 6, 2025
4.16Form of Placement Agent Warrant*
10.1#Form of Inducement Letter Agreement dated November 3, 2025, by and between Phio Pharmaceuticals Corp. and the Holders*
10.2#Separation Agreement and General Release of Claims, dated August 11, 2025, by and between the Company and Robert Infarinato.August 14, 2025
31.1Sarbanes-Oxley Act Section 302 Certification of Principal Executive Officer.*
31.2Sarbanes-Oxley Act Section 302 Certification of Principal Financial Officer.*
32.1Sarbanes-Oxley Act Section 906 Certification of Principal Executive Officer and Principal Financial Officer.**
101.INSInline XBRL Instance Document.*
101.SCHInline XBRL Taxonomy Extension Schema Document.*
101.CALInline XBRL Taxonomy Extension Calculation Linkbase Document.*
101.DEFInline XBRL Taxonomy Extension Definition Linkbase Document.*
101.LABInline XBRL Taxonomy Extension Label Linkbase Document.*
101.PREInline XBRL Taxonomy Extension Presentation Linkbase Document.*
104The cover page for this report, formatted in Inline XBRL (included in Exhibit 101).*
*Filed herewith.
**Furnished herewith and not deemed “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liability of that Section or incorporated by reference into any filing under the Securities Act or the Exchange Act.
#Indicates a management contract or compensatory plan or arrangement.
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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.