Features Pricing Learn Reverse Splits Tracker Shelf & ATM Tracker Warrant Tracker PIPE Deal Tracker Weekly Report FAQ API Sign In →
50 /100
MEDIUM RISK
Score updated Oct 13, 2026

GOSS — Gossamer Bio, Inc. Dilution Risk Tracker

Track GOSS 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.

🔔 Track GOSS — Get alerts when the score changes →

As of October 13, 2026, Gossamer Bio, Inc. (GOSS) has a DilutionWatch DilutionScore of 50/100, rated MEDIUM dilution risk. Gossamer Bio, Inc. has a market capitalization of $4.54B, 488.85M shares outstanding, 193 institutional holders tracked. Stored dilution-related fields include 30.68M outstanding warrants.

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
32
💰 Cash Runway
85
📊 Float Risk
34
⚠️ Warrant Exposure
30
🔄 Convertible Debt
15

Dilution Forecast

⛈️
Warning
High probability of dilution event
model est. 48%
🔄 Reverse Split model est. 70%
• 50-day avg $0.34 below $1 exchange minimum
• Only 4 months cash — financial pressure
💰 Capital Raise model 35%
• Low cash runway: 4 months remaining
📜 Warrant Exercise model 15%
• Warrant overhang: 6.3% of shares outstanding
🔔 Track GOSS — Get forecast alerts →

Market Data

Market Cap$4.54B
Shares Outstanding488.85M
Float227.18M
Cash$57.03M
Debt$11.61M
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
DilutionScore50/100DilutionWatch score record
Shares Outstanding488.85MVerified float table or market cache
Public Float227.18MVerified float table or market cache
Market Cap$4.54BMarket data cache
Cash Runway3.7 monthsDilutionWatch score inputs
Shelf CapacityNone in current score inputsSEC-derived dilution fields
ATM CapacityNone in current score inputsSEC-derived dilution fields
Outstanding Warrants30.68MSEC-derived dilution fields

Recent source-backed SEC insight records available on this page: 2.

Recent SEC source mix: XBRL 2.

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: ↑ 3.1% shares (2026Q1 vs prior)
193 institutional holders · 203.27M shares
#1 VANGUARD CAPITAL MANAGEMENT LLC 18.79M shares
#2 Kalehua Capital Management LLC 17.71M shares
#3 BlackRock, Inc. 16.83M 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 Interest1.24M
Days to Cover3.5
% of Float0.5%
FINRA data as of Sep 30, 2026

Recent SEC Activity

xbrl XBRL WARRANT 2026-08-13
xbrl XBRL CONVERTIBLE 2023-03-17
Full SEC filing analysis available with free account →

Recent News

No recent news available for this ticker.

Factual GOSS Dilution Snapshot

Gossamer Bio, Inc. (GOSS) has a DilutionScore of 50/100, rated Medium 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

GOSS's DilutionScore is currently 50/100 (Medium risk), with 4 score changes tracked over 90 days. The score deteriorated from 57/100 (High risk).

Period Score Risk Level Duration
Oct 09 – Oct 13, 202650/100MEDIUM5 days
Sep 29 – Oct 08, 202657/100HIGH10 days
Aug 17 – Sep 28, 202660/100HIGH43 days
Aug 14 – Aug 16, 202647/100MEDIUM3 days
Jul 16 – Aug 13, 202649/100MEDIUM29 days

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

Share Dilution History

GOSS shares outstanding have increased 1.4% from 231.46M (Feb 2026) to 234.70M (May 2026). Each increase represents potential dilution to existing shareholders.

Date Shares Outstanding Public Float Change
May 23, 2026234.70M227.18M▲ 0.01%
May 18, 2026234.70M227.15M▲ 7.14%
May 09, 2026234.70M212.01M▲ 0.41%
Mar 22, 2026234.70M211.16M▲ 0.16%
Mar 20, 2026231.46M210.83M▲ 1.40%
Feb 14, 2026231.46M187.91M—
Feb 13, 2026231.46M187.91M—

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

Track GOSS Dilution Risk in Real-Time
DilutionWatch monitors SEC filings 24/7 and alerts you the moment GOSS files a shelf registration, ATM offering, warrant notice, or convertible note. Free tier available — no credit card required.
Start Tracking GOSS — Free
Email alert within minutes of any SEC filing Daily DilutionScore™ recalculation Score history & trend tracking Tracks 8,000+ tickers simultaneously

Related Stocks — MEDIUM Risk

Other MEDIUM dilution risk stocks tracked by DilutionWatch with similar profiles:

→ Biotech / Pharma sector dilution risk overview

Browse all 8,490+ tracked stocks →

📖 Dilution Education
→ Complete Dilution Guide for Retail Investors → Anti-Dilution Provisions Explained → Stock Dilution Red Flags to Watch → Understanding Shelf Registrations
More Research for GOSS
GOSS FDA Catalyst Timeline & Biotech Grade — BiotechSigns

Part of the Guerilla Finance research network. Cross-reference multiple data sources for better due diligence.