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Diffusion Pharmaceuticals Inc. (DFFN) Stock Analysis

DELISTED 2023

What happened to Diffusion Pharmaceuticals Inc. (DFFN) stock?

Diffusion Pharmaceuticals Inc. (DFFN) no longer trades on public markets. It was delisted in August 2023. The figures below are historical and are not a current quote.

Status:
Delisted — no longer trades
Delisting date:
August 2023
Last recorded price (historical):
$4.40 (last quote on record before the August 2023 delisting; historical, not a current quote)
MCap: $8.98M| Vol: 349.4K| 52-wk range: $4.14 – $14.37

Market cap $8.98M is the value of all shares combined.

Data from FMP · Methodology

For informational purposes only. Not financial advice. Data sources: Financial Modeling Prep, Yahoo Finance, SEC EDGAR

Diffusion Pharmaceuticals Inc. (DFFN). Diffusion Pharmaceuticals Inc. is a clinical-stage biopharmaceutical company focused on developing Trans Sodium Crocetinate (TSC), an investigational therapy designed to enhance oxygen diffusion into tissues.

Last analyzed: Jun 14, 2026
Diffusion Pharmaceuticals Inc. is a clinical-stage biopharmaceutical company focused on developing Trans Sodium Crocetinate (TSC), an investigational therapy designed to enhance oxygen diffusion into tissues. The company is exploring TSC's applications in various conditions, including its ongoing development for COVID-19.

These figures come from statements filed 13 months ago — the most recent this company has published.

Diffusion Pharmaceuticals Inc. (DFFN) Healthcare & Pipeline Overview

Employees13
Model self-rating on this text: 70% (not a measure of the evidence) Updated: Jun 14, 2026

More about this archive record

Can I still buy DFFN shares?

No. DFFN stopped trading on public markets in August 2023, so the shares are not available through a broker. Anything you see quoted for DFFN elsewhere is historical data, not a live market.

Are the figures on this page current?

No. Every number here is the last value recorded before DFFN stopped trading. Nothing on this page updates, and none of it is a current quote.

Why does this page still exist?

Because people still search for what happened to Diffusion Pharmaceuticals Inc.. An archived profile that states the delisting plainly is more useful than a dead link — provided it is labelled as history, which is what this page does.

Disclaimer: This content is for informational purposes only and does not constitute investment advice. Always do your own research and consult a financial advisor.

Official Resources

Analysis updated
Data Sources & Methodology
Figures come from Financial Modeling Prep (FMP). If FMP has no figure for a ticker, a price or fundamental may come from a Yahoo Finance fallback, or a price from an Alpaca fallback. SEC EDGAR is used only for filing links and company identity details (legal name, address), never for figures. Last updated: .

Data provided for informational purposes only.