Dyne Therapeutics, Inc.
Dyne Therapeutics, Inc. (DYN) Shares Outstanding — Overview
Basic and diluted weighted average shares, YoY change, float context, and historical trend from SEC filings and FMP.
DYN · shares outstanding · updated Jun 8, 2026
Key metrics
as of Dec 31, 2025Shares Outstanding Growth Rate
CAGR · weighted avg basic sharesNegative CAGR typically indicates share buyback or retirement activity. Interpret alongside Splits and Financials tabs. Splits / Financials
Shares outstanding history
Annual shares outstanding by year
Healthcare sector shares outstanding comparison
Shares Outstanding for similar companies or competitors in the Healthcare sector.
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LLYDYN/company-screener · per-peer /income-statement · cache 86400s
Understanding Shares Outstanding
Basic · Diluted · FloatWhat Are Shares Outstanding? (Basic)
Dyne Therapeutics, Inc. (DYN) shares outstanding is the total number of issued shares held by shareholders — the basis for Basic EPS and market capitalization. As of December 31, 2025, Dyne Therapeutics, Inc. reports 128.4M basic shares outstanding (weighted average).
Basic vs. Diluted Shares Outstanding
Dyne Therapeutics, Inc.'s basic shares outstanding (128.4M) represents currently issued shares. Diluted shares outstanding (128.4M) also includes potential shares from stock options, RSUs, and convertibles. Dilution spread: +0.00%.
Shares Outstanding vs. Float (Free Float)
Dyne Therapeutics, Inc.'s float is 132.0M (79.8% of total shares outstanding) — shares freely available for public trading, excluding insider-held and restricted shares.
ⓘ Float data from /shares-float reflects the most recent SEC filing period-end. The weighted average shares (from /income-statement) may differ — this is a normal reporting window difference, not a data error.
FMP /income-statement · /shares-float · SEC EDGAR · USD
About shares outstanding & methodology
Dyne Therapeutics, Inc. (DYN) shares outstanding history from 2007 to 2025. Shares outstanding can be defined as the total number of shares held by all shareholders — including institutional investors, retail investors, and company insiders — assuming conversion of all convertible debt, securities, warrants, and options. This metric excludes the company's treasury shares.
Dyne Therapeutics, Inc. shares outstanding for the fiscal year ending December 31, 2025 were 128.4M, a 36.43% increase year-over-year. Dyne Therapeutics, Inc. FY 2025 shares outstanding were 128.4M, a +36.43% increase from FY 2024.
Dyne Therapeutics, Inc. is a leading company operating in the Healthcare sector. The company's share count trajectory — with a 10-year CAGR of +0.3% — is a key signal for investors evaluating capital return policy, EPS accretion, and long-term shareholder value creation.
Frequently asked questions
DYN shares outstanding · 4 questionsAs of December 31, 2025, Dyne Therapeutics, Inc. (DYN) has approximately 128.4M basic shares outstanding and 128.4M diluted shares outstanding. This represents a +36.43% year-over-year increase from FY 2024 (94.1M). The increase may reflect equity compensation issuances or secondary offerings.
▸ Data: FMP /income-statement · /shares-float · SEC EDGAR · weighted average basis · Dyne Therapeutics, Inc. SEC 10-K & 10-Q filings · US GAAP · Last updated: 2026-06-08