PHIO
Phio Pharmaceuticals Corp. Common Stock
Nasdaq · usd
Phio Pharmaceuticals Corp. Common Stock (PHIO) trades at $0.8587 (+0.74%) as of 2:22:04 PM EDT on Oct 26, 2026, -14.95% over the past month. Market cap is $9.9M, with 1.0 days to cover in short interest.
Stock performance
How Phio Pharmaceuticals Corp. Common Stock (PHIO) stock has performed from one day to one year, with its 52-week range.
- 1D
- +0.77%
- 1W
- -1.14%
- 1M
- -14.95%
- YTD
- -18.19%
- 1Y
- -60.27%
- 52-wk range
- $0.81 – $4.19
Key statistics
Today's trading snapshot for PHIO: day range, open, previous close, volume and market cap.
- Day range
- $0.85 – $0.90
- Open
- $0.88
- Prev close
- $0.85
- Volume
- 38.44K
- Market cap
- $9.9M
- Shares out
- 11.62M
Valuation and profitability ratios: P/E, P/S, ROE
Valuation and profitability ratios for Phio Pharmaceuticals Corp. Common Stock: P/E, P/S, P/B, ROE and more.
- P/E
- —
- P/S
- —
- P/B
- 0.78
- P/FCF
- —
- ROE
- -102.4%
- ROA
- -90.2%
- Debt/Equity
- 0.00
- Div yield
- 0.00%
As of Oct 23, 2026
8-K filings
Material corporate events Phio Pharmaceuticals Corp. Common Stock has disclosed to the SEC on Form 8-K.
- Annual meeting resultsSep 28, 2026
At the Annual Meeting, the Company's stockholders voted and: (1) elected each of the six directors to serve until the Company's 2027 Annual Meeting of Stockholders; (2) ratified the appointment of Grant Thornton, LLP as the Company's independent registered public accounting firm for the year ending December 31, 2026; and (3) approved the Plan Amendment to increase the number of shares of common stock available for issuance under the 2020 Plan by 1,500,000.
- Director appointmentJul 21, 2026
Effective as of July 20, 2026, the Board of Directors (the "Board") of Phio Pharmaceuticals Corp. (the "Company") increased the size of the Board to six members and appointed R. Todd Plott, M.D. to serve on the Board until the 2026 annual meeting of stockholders. Dr. Plott was also appointed to serve as a member of the Board's Governance Committee. Dr. Plott is a board-certified dermatologist, accomplished researcher, inventor, and former FDA advisory committee member with more than 30 years of experience in dermatologic care and innovation.
- Public offeringApr 8, 2026
On April 8, 2026, Phio Pharmaceuticals Corp. (the "Company") entered into an At The Market Offering Agreement (the "Sales Agreement") with H.C. Wainwright & Co., LLC, as sales agent (the "Sales Agent"), pursuant to which the Company may offer and sell, from time to time, through the Sales Agent, shares of the Company's common stock, par value $0.0001 per share (the "Shares"). The offering and sale of up to $6,360,000 of the Shares pursuant to the Sales Agreement is being registered under the Securities Act of 1933, as amended (the "Securities Act"), pursuant to the Company's shelf registration statement on Form S-3.
- Executive compensation changeFeb 18, 2026
The Second Amendment (i) amends the severance provision in the Existing Employment Agreement to provide that, in the event of a termination by the Company without "cause" or by Mr. Bitterman for "good reason", Mr. Bitterman is entitled to severance in the amount of twelve (12) months of his base salary and (ii) provides that Mr. Bitterman's annual target bonus opportunity shall be 50% of his base salary (increased from 40% in the Existing Employment Agreement).
- Clinical trial resultsFeb 10, 2026
On February 10, 2026, the Company issued a press release announcing the Safety Medical Committee's formal conclusion with respect to the Company's Phase 1b clinical trial of PH-762 and updates with respect to the clinical trial's response rates.
Dividend history and stock splits
Phio Pharmaceuticals Corp. Common Stock's recent dividend payments and stock splits.
Dividends
No recent dividends.
Splits
- 1-for-9Jul 5, 2024
- 1-for-12Jan 26, 2023
- 1-for-55Jan 15, 2020
PHIO short interest
How heavily PHIO is shorted: shares short, days to cover and average daily volume.
- Days to cover
- 1.0
- Short interest
- 89.45K
- Avg volume
- 114.6K
As of · reported to FINRA twice monthly.
PHIO news
The latest news and headlines about Phio Pharmaceuticals Corp. Common Stock (PHIO).
- Merkel Cell Carcinoma Market Set for Rapid Growth in the Coming 10 Years Across the 7MM | DelveInsightpositiveGlobeNewswire Inc.· Aug 20, 2025
- Phio Posts Wider Loss in Fiscal Q2neutralThe Motley Fool· Aug 14, 2025
- Retinoblastoma Treatment Market to Surpass $2 Billion in 2024, Exhibiting a CAGR of 5.5% - Global Long-term Forecasts to 2028 and 2033positiveGlobeNewswire Inc.· Aug 23, 2024
- Phio Pharmaceuticals Secures New InvestorGlobeNewswire Inc.· May 17, 2024
- Phio Pharmaceuticals Announces Completion of Dosing in First Patient Cohort in PH-762 Phase 1b Dose-Escalation StudyGlobeNewswire Inc.· May 15, 2024
Frequently asked questions
What is the Phio Pharmaceuticals Corp. Common Stock (PHIO) stock price today?
Phio Pharmaceuticals Corp. Common Stock (PHIO) is trading at $0.8587 (+0.74% on the day) as of 2:22:04 PM EDT on Oct 26, 2026. Prices are delayed at least 15 minutes; real-time quotes are available from the Massive API.
What is Phio Pharmaceuticals Corp. Common Stock?
Phio Pharmaceuticals Corp is a clinical-stage biopharmaceutical company whose proprietary INTASYL small-interfering RNA gene silencing technology is designed to make immune cells more effective in killing tumor cells. Its pipeline programs are PH-762 and PH-894.
What is the short interest in PHIO?
As of Sep 30, 2026, PHIO has 89.45K shares short and 1.0 days to cover.
What exchange is PHIO listed on?
Phio Pharmaceuticals Corp. Common Stock (PHIO) trades on Nasdaq in USD, in the PHARMACEUTICAL PREPARATIONS industry.
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