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14 /100
LOW RISK
Score updated Oct 13, 2026

RYTM — Rhythm Pharmaceuticals, Inc. Dilution Risk Tracker

Track RYTM dilution risk with DilutionWatch's stock tracker. DilutionScore™ measures dilution risk across 5 factors — lower scores indicate higher risk of share dilution.

⚠️ Not financial advice. Do your own research before making any investment decisions.

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As of October 13, 2026, Rhythm Pharmaceuticals, Inc. (RYTM) has a DilutionWatch DilutionScore of 14/100, rated LOW dilution risk. Rhythm Pharmaceuticals, Inc. has a market capitalization of $6.18B, 68.85M shares outstanding, 288 institutional holders tracked.

This page includes automatically generated factual summaries from DilutionWatch data. It is not financial advice, not investment research, and not a recommendation. Do your own research. Read the full disclaimer and terms of service.

Score Breakdown

📋 Offering Ability
20
💰 Cash Runway
10
📊 Float Risk
10
⚠️ Warrant Exposure
15
🔄 Convertible Debt
15

Dilution Forecast

☀️
Clear
No significant dilution signals
model est. 0%
No significant dilution signals detected for RYTM.
🔔 Track RYTM — Get forecast alerts →

Market Data

Market Cap$6.18B
Shares Outstanding68.85M
Float55.70M
Cash$330.90M
Debt$106.10M
Short InterestN/A

Source-Backed Evidence Depth

This public preview uses stored DilutionWatch fields and linked SEC/market records only. Missing values are not estimated.

FieldCurrent ValueBasis
DilutionScore14/100DilutionWatch score record
Shares Outstanding68.85MVerified float table or market cache
Public Float55.70MVerified float table or market cache
Market Cap$6.18BMarket data cache
Cash Runway24.6 monthsDilutionWatch score inputs
Shelf CapacityNone in current score inputsSEC-derived dilution fields
ATM CapacityNone in current score inputsSEC-derived dilution fields
Outstanding WarrantsNone in current score inputsSEC-derived dilution fields

Recent source-backed SEC insight records available on this page: 6.

Recent SEC source mix: FORM 4 5, XBRL 1.

The page does not infer future share issuance, financing probability, cash needs, management intent, or price impact when source fields are absent.

Institutional Holdings

QoQ: ↑ 15.4% shares (2026Q1 vs prior)
288 institutional holders · 86.26M shares
#1 RA CAPITAL MANAGEMENT, L.P. 6.67M shares
#2 BlackRock, Inc. 6.24M shares
#3 VANGUARD CAPITAL MANAGEMENT LLC 5.94M shares
+ 17 more holders Sign up free to view →

Institutional holder totals are aggregated from ownership filings and may use a different share basis or reporting date than public float. They are not a reconciliation against tradeable float.

Short Interest

Short Interest10.77M
Days to Cover14.1
% of Float19.3%
FINRA data as of Sep 30, 2026

Recent SEC Activity

xbrl XBRL CONVERTIBLE 2026-02-26
Form 4 INSIDER TRANSACTION 2026-09-14
Form 4 INSIDER TRANSACTION 2026-09-14
Form 4 INSIDER TRANSACTION 2026-09-14
Form 4 INSIDER TRANSACTION 2026-09-14
Full SEC filing analysis available with free account →

Recent News

No recent news available for this ticker.

Factual RYTM Dilution Snapshot

Rhythm Pharmaceuticals, Inc. (RYTM) has a DilutionScore of 14/100, rated Low dilution risk. Score date: October 13, 2026.

This automatically generated snapshot is assembled from stored DilutionWatch data fields and may contain data-source errors or omissions. It is not financial advice, not investment research, and not a recommendation. Do your own research and review the full disclaimer and terms of service.

DilutionScore History — Last 90 Days

RYTM's DilutionScore has held steady at 14/100 (Low risk) for 89 consecutive days across the tracked period.

Period Score Risk Level Duration
Jul 16 – Oct 13, 202614/100LOW89 days

Score recalculated daily from SEC filings and market data. Sign up free for real-time score change alerts.

Share Dilution History

RYTM shares outstanding have increased 2.7% from 66.74M (Mar 2026) to 68.53M (May 2026). Each increase represents potential dilution to existing shareholders.

Date Shares Outstanding Public Float Change
May 10, 202668.53M55.70M▲ 0.03%
May 09, 202668.53M55.68M▲ 0.05%
May 08, 202668.53M55.65M▲ 0.13%
May 07, 202668.53M55.58M▲ 0.23%
Apr 07, 202668.29M55.45M▼ 0.02%
Mar 05, 202666.74M55.47M▼ 0.01%

Share counts sourced from verified regulatory filings. Increases indicate dilution events.

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