Microcap Ledger

Tickers · $PHIO

Phio Pharmaceuticals Corp. $PHIO

By Microcap Ledger desk · CIK 0001533040

Facts as of . Built from SEC filings and our own data. Small caps move fast; check the latest filings.

Snapshot

Exchange
Nasdaq Capital Market
Sector
Pharmaceutical Preparations
Headquarters
King Of Prussia, PA
Fiscal year end
December 31
Shares outstanding
11,617,250 [10-Q 2026-08-06]
as of 2026-08-04

Sources: [10-K 2026-03-05]

What the company doesAI summary of filing

Phio Pharmaceuticals Corp. is a clinical-stage biopharmaceutical company developing cancer immunotherapy treatments using its proprietary INTASYL small interfering RNA technology. The company's INTASYL compounds are designed to silence genes that help tumors evade the immune system, with a lead candidate, PH-762, currently in a Phase 1b clinical trial for cutaneous squamous cell carcinoma, melanoma, and Merkel cell carcinoma. The company does not manufacture products and relies on contract manufacturers; it currently has no product revenue and is dependent on raising capital to fund its research and development activities. [10-K 2026-03-05]

Segments: PH-762 (PD-1 targeting siRNA for intratumoral injection), PH-894 (BRD4 targeting siRNA in preclinical development)

Financial health

From XBRL company facts (USD)
PeriodRevenueNet incomeOperating cash flowCashFiling
6 months to Jun 2026—−$8.14M −$8.04M$13.00M[10-Q 2026-08-06]
FY ended Dec 2025—−$8.70M −$7.98M$21.03M[DEF 14A 2026-08-14]
FY ended Dec 2024—−$7.15M −$7.11M$5.38M[DEF 14A 2026-08-14]
Quarterly cash burn
−$4.02M
Cash runway Estimate
~9.7 months

Estimate: cash at the end of the period (6 months to Jun 2026) divided by the average monthly operating cash outflow over that period. Ignores any cash raised or spent since, and any financing.

Capital structure and dilution

Summary only. How these instruments work: Dilution & financing desk.

Share count
DateShares outstandingFiling
2024-11-141,055,219[10-Q 2024-11-14]
2025-03-204,778,154[10-K 2025-03-31]
2025-05-154,798,154[10-Q 2025-05-15]
2025-08-125,726,750[10-Q 2025-08-14]
2025-11-1110,764,428[10-Q 2025-11-13]
2026-03-0211,617,250[10-K 2026-03-05]
2026-05-0511,617,250[10-Q 2026-05-07]
2026-08-0411,617,250[10-Q 2026-08-06]
Shelf registration
S-3 filed 2025-11-20; declared effective 2025-12-03 [S-3 2025-11-20]

Listing status

Current status: No Form 8-K Item 3.01 (listing notice) filings in the last 24 months, as of 2026-10-11.

More on deficiency notices and uplistings: Listing status desk.

Who owns it

Recent Form 4 transactions
DateInsiderTypeSharesPriceFiling
2026-09-29Plott Ronald Toddbuy5,000$1.04[4 2026-09-30]
2026-09-28Plott Ronald Toddbuy5,000$1.03[4 2026-09-30]
2026-09-28Carson Lisa Cabottgrant108,000—[4 2026-09-29]
2026-09-28Bitterman Robert Jgrant400,000—[4 2026-09-29]
2026-09-28Plott Ronald Toddgrant17,000—[4 2026-09-29]
2026-09-24Bradford Patricia Abuy6,500$1.01[4 2026-09-25]
2026-09-22Bitterman Robert Jbuy2,000$1.03[4 2026-09-23]
2026-09-15Bradford Patricia Abuy12,000$1.03[4 2026-09-16]
2026-09-11Carson Lisa Cabottother12,888$1.03[4 2026-09-15]

Catalysts and calendar

Recent filings and releases
DateTypeTitle
2026-09-288-KDirector or officer change; Shareholder vote results
2026-09-148-KOther events
2026-08-14DEF 14AProxy statement
2026-08-068-KResults of operations
2026-08-0610-QQuarterly report
2026-07-218-KDirector or officer change; Other events
2026-05-0710-QQuarterly report
2026-05-078-KResults of operations
2026-04-088-KMaterial agreement entered
2026-04-08424B5Prospectus or prospectus supplement
2026-03-308-KOther events
2026-03-0510-KAnnual report

Facts as of . Small caps move fast; check the latest filings.