COMPANY

Phio Pharmaceuticals

HQ: King Of Prussia, PA source · phiopharma.com ↗

Keywords: RNA therapeutics siRNA oncology skin squamous cell carcinoma melanoma Squamous Cell Carcinoma of the Skin Malignant Melanoma of Skin Merkel Cell Carcinoma of Skin PH-762

Location: King Of Prussia, PA · source · Sep 28, 2026

Profile checked Oct 10, 2026

1Trials (company is sponsor)

Funding and NIH signals

SEC Form D raise Raised $1.42M (Form D filed Nov 12, 2025). SEC Form D 0001123292-25-000633 (Nov 12, 2025)
Evidence (1 event)
- Nov 12, 2025 · SEC Form D 0001123292-25-000633
  Name of Issuer: Phio Pharmaceuticals Corp.; CIK: 1533040; Address: King OF Prussia, PA; Submission type: D; Filing date: 2025-11-12; Industry Group: Biotechnology; Date of First Sale: 2025-11-04; Types of Securities Offered: Option/warrant, Security to be acquired; Business combination transaction: false; Total Offering Amount: 25931342; Total Amount Sold: 1415796; Federal exemptions: 06b

Job counts as of Oct 18, 2026. All funding and NIH signals

Timeline

Nov 7, 2023 Trial start Phase 1: Intratumoral PH-762 for Cutaneous Carcinoma source ↗

Clinical trials (lead sponsor) 1

Record	Title	Phase	Status	Start	Primary completion
NCT06014086	Intratumoral PH-762 for Cutaneous Carcinoma	Phase 1	Completed	Nov 7, 2023	Dec 29, 2025 (actual)

Raises and investors new

Form D raises come from the company’s own SEC filing (last 2 years).

2025-11-12 Raise Private raise (SEC Form D): $1.4M sold of $25.9M offered; issuer “Phio Pharmaceuticals Corp.”. Verified from the SEC filing. SEC filing ↗
2025-08-04 Raise Private raise (SEC Form D): $232K sold of $5.1M offered; issuer “Phio Pharmaceuticals Corp.”. Verified from the SEC filing. SEC filing ↗
2025-01-28 Raise Private raise (SEC Form D): $152K sold of $3.7M offered; issuer “Phio Pharmaceuticals Corp.”. Verified from the SEC filing. SEC filing ↗
2025-01-28 Raise Private raise (SEC Form D): $208K sold of $5.0M offered; issuer “Phio Pharmaceuticals Corp.”. Verified from the SEC filing. SEC filing ↗
2025-01-28 Raise Private raise (SEC Form D): $266K sold of $6.4M offered; issuer “Phio Pharmaceuticals Corp.”. Verified from the SEC filing. SEC filing ↗
2025-01-07 Raise Private raise (SEC Form D): $30K sold of $480K offered; issuer “Phio Pharmaceuticals Corp.”. Verified from the SEC filing. SEC filing ↗
2025-01-03 Raise Private raise (SEC Form D): $55K sold of $1.3M offered; issuer “Phio Pharmaceuticals Corp.”. Verified from the SEC filing. SEC filing ↗