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GOSS Overview

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$
0.000
0.000(0.000%)
At close
0.000(0.000%)Aft-market
ET
$
0.000
0.000(0.000%)
At close
0.000(0.000%)Aft-market
ET
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Intellectia

Loading chart...

High
0.427
Open
0.368
VWAP
0.40
Vol
3.96M
Mkt Cap
87.21M
Low
0.368
Amount
1.60M
EV/EBITDA(TTM)
--
Total Shares
234.70M
EV
147.59M
EV/OCF(TTM)
--
P/S(TTM)
1.75
Gossamer Bio, Inc. is a late-stage, clinical biopharmaceutical company, which is focused on the development and commercialization of seralutinib for the treatment of pulmonary arterial hypertension and pulmonary hypertension associated with interstitial lung disease (PH-ILD). Seralutinib, also known as GB002, is an investigational inhaled, small-molecule, platelet-derived growth factor receptor (PDGFR), colony-stimulating factor 1 receptor (CSF1R), and c-KIT inhibitor, being evaluated in a Phase III clinical trial for the treatment of PAH. Seralutinib is designed to target the mechanisms that underlie pulmonary hypertension and to be delivered to the site of disease, via dry powder inhaler. Seralutinib is being evaluated in a Phase III clinical trial for the treatment of pulmonary arterial hypertension (PAH). Inhaled seralutinib, which is designed to act on both isoforms of the PDGFR, α and β, as well as the CSF1R and c-KIT pathways.
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Events Timeline

(ET)
2026-03-23
09:10:00
U.S. Stock Futures Rise, Airline Stocks Benefit
select
2026-03-17 (ET)
2026-03-17
16:10:00
Gossamer Bio Q4 Revenue $13.799M, Exceeds Expectations
select
2026-02-24 (ET)
2026-02-24
16:40:00
Major Averages Bounce Back, Investors Focus on AI News
select
2026-02-24
12:00:00
Major Averages Bounce Back, Investors Focus on AI News
select

News

PRnewswire
7.0
11:57 AMPRnewswire
Class Action Lawsuit Filed Against Gossamer Bio by Shareholders
  • Class Action Initiation: Wolf Haldenstein Adler Freeman & Herz LLP has announced a class action lawsuit on behalf of shareholders who purchased Gossamer Bio (NASDAQ:GOSS) securities between June 16, 2025, and February 20, 2026, with a deadline for lead plaintiff applications set for June 1, 2026, highlighting significant concerns over the company's financial transparency.
  • Allegations of Misrepresentation: The filed complaint alleges that throughout the class period, defendants made materially false and misleading statements and failed to disclose adverse facts regarding the company's business, operations, and prospects, indicating severe deficiencies in corporate governance and information disclosure.
  • Clinical Trial Failure: On February 23, 2026, Gossamer disclosed that its Phase 3 PROSERA study of seralutinib for pulmonary arterial hypertension failed to meet its primary endpoint, resulting in an 80.3% stock price drop, which triggered a crisis of confidence among investors regarding the company's future.
  • Law Firm's Background: Founded in 1888, Wolf Haldenstein Adler Freeman & Herz LLP boasts over 125 years of legal expertise in securities litigation, dedicated to pursuing justice for investors harmed by misrepresentations, showcasing its professionalism and reliability in protecting investor rights.
Globenewswire
7.0
04-09Globenewswire
Class Action Filed Against Gossamer Bio for Securities Violations
  • Class Action Initiated: Bronstein, Gewirtz & Grossman, LLC has announced a class action lawsuit against Gossamer Bio, seeking damages for investors who purchased securities between June 16, 2025, and February 20, 2026, highlighting potential violations of federal securities laws.
  • False Statements Allegations: The complaint alleges that Gossamer Bio made materially false and misleading statements during the class period, failing to disclose significant flaws in the design of its Phase 3 PROSERA study, which led investors to buy shares at artificially inflated prices.
  • Investor Losses: The lawsuit claims that due to the failure to adequately control for placebo response at Latin American testing sites, Gossamer's securities traded at inflated levels, resulting in losses for investors, with the lawsuit aiming to recover these damages.
  • Legal Fee Arrangement: The law firm operates on a contingency fee basis, meaning they will only seek reimbursement for expenses and attorney fees from the court if they are successful, thereby reducing the financial burden on investors pursuing the lawsuit.
Newsfilter
7.0
04-08Newsfilter
Gossamer Bio Investors Reminder for Upcoming Lawsuit Deadline
  • Lawsuit Deadline: Investors must file a lead plaintiff motion by June 1, 2026, to participate in the class action regarding losses incurred from Gossamer Bio (NASDAQ:GOSS) securities purchased between June 16, 2025, and February 20, 2026.
  • Stock Price Plunge: On February 23, 2026, Gossamer's stock plummeted by $1.71, or 80.3%, closing at $0.42 per share after the company disclosed that its Phase 3 PROSERA study failed to meet its primary endpoint, significantly harming investors.
  • False Statements Allegation: The lawsuit alleges that throughout the class period, the company made materially false and misleading statements and failed to disclose critical information about the treatment of patients in Latin America, leading to misleading assessments of the company's prospects.
  • Legal Consultation Channels: Investors can contact the Law Offices of Howard G. Smith via email or phone to learn about their rights and the process for participating in the lawsuit, ensuring their legal interests are protected.
Globenewswire
7.0
04-06Globenewswire
Class Action Reminder for New Era Energy and Gossamer Bio
  • New Era Energy Lawsuit: A class action lawsuit against New Era Energy (NUAI) alleges that the company failed to disclose material facts regarding its Texas Critical Data Centers project from November 6, 2024, to December 29, 2025, resulting in significant investor losses, with a deadline of June 1, 2026, to apply as lead plaintiff.
  • Gossamer Bio Lawsuit: A class action lawsuit against Gossamer Bio (GOSS) claims that the company made misleading statements regarding its Phase 3 PROSERA study between June 16, 2025, and February 20, 2026, with the same June 1, 2026, deadline for investors to seek lead plaintiff status.
  • Law Firm Credentials: Holzer & Holzer, LLC, recognized as an ISS top-rated securities litigation firm from 2021 to 2025, is dedicated to vigorously representing shareholders and investors, having recovered hundreds of millions of dollars for victims of corporate misconduct since its inception in 2000.
  • Investor Rights Advocacy: The firm encourages investors who purchased shares during the specified periods and suffered losses to contact their attorneys to understand their legal rights, ensuring they receive the necessary protection and support in the litigation process.
Globenewswire
7.0
04-06Globenewswire
Gossamer Bio Accused of Misleading Investors in Class Action
  • Class Action Filed: Robbins LLP reminds shareholders that a class action has been initiated on behalf of investors who purchased Gossamer Bio (NASDAQ: GOSS) securities between June 16, 2025, and February 20, 2026, alleging the company misled investors regarding its PROSERA study, causing shareholders to buy securities at artificially inflated prices.
  • Study Results Fail: On February 23, 2026, Gossamer announced that its Phase 3 PROSERA study failed to meet its primary endpoint, achieving only a +13.3 meter placebo-adjusted gain in six-minute walk distance (6MWD), which did not meet the required 0.025 alpha threshold, leading to a stock price drop of over 80% in a single day.
  • Investor Confidence Eroded: The concealment of issues related to placebo response control in the study design severely undermined investor confidence, with the stock price plummeting from $2.13 per share on February 20, 2026, to $0.42 per share on February 23, reflecting a pessimistic outlook on the company's future prospects.
  • Shareholder Action Guidance: Shareholders wishing to serve as lead plaintiffs in the class action must submit their papers by June 1, 2026, with Robbins LLP offering contingency fee representation, ensuring shareholders can potentially recover losses without upfront costs.
Globenewswire
7.0
04-06Globenewswire
Class Action Lawsuit Filed Against Gossamer Bio, Inc.
  • Lawsuit Background: Bronstein, Gewirtz & Grossman, LLC has filed a class action lawsuit against Gossamer Bio, Inc., alleging violations of federal securities laws on behalf of all investors who purchased or acquired Gossamer securities between June 16, 2025, and February 20, 2026.
  • False Statements Allegation: The complaint claims that Gossamer's executives concealed significant adverse facts regarding the Phase 3 PROSERA study while promoting positive results, particularly their failure to adequately control for placebo response at Latin American testing sites, which led to artificially inflated stock prices.
  • Investor Action: Affected investors are encouraged to apply to be lead plaintiffs by June 1, 2026, to share in any potential recovery, with the assurance that participation does not require serving as lead plaintiff.
  • Law Firm's Advantage: Bronstein, Gewirtz & Grossman, LLC is a nationally recognized firm specializing in securities fraud class actions, having recovered hundreds of millions for investors, emphasizing their commitment to restoring investor capital and ensuring corporate accountability.
Wall Street analysts forecast GOSS stock price to rise
4 Analyst Rating
Wall Street analysts forecast GOSS stock price to rise
3 Buy
1 Hold
0 Sell
Strong Buy
Current: 0.000
sliders
Low
10.00
Averages
12.33
High
15.00
Current: 0.000
sliders
Low
10.00
Averages
12.33
High
15.00
Cantor Fitzgerald
Overweight -> Neutral
downgrade
AI Analysis
2026-03-23
Reason
Cantor Fitzgerald
Price Target
AI Analysis
2026-03-23
downgrade
Overweight -> Neutral
Reason
Cantor Fitzgerald on Friday downgraded Gossamer Bio to Neutral from Overweight without a price target. The firm cites the negative Phase 3 readout for PROSERA and an unclear regulatory path forward for seralutinib in pulmonary arterial hypertension for the downgrade. It is challenging to have conviction in whether Gossamer has a strong case for a path to commercialization, the analyst tells investors in a research note.
Cantor Fitzgerald
Overweight -> Neutral
downgrade
2026-03-20
Reason
Cantor Fitzgerald
Price Target
2026-03-20
downgrade
Overweight -> Neutral
Reason
Cantor Fitzgerald downgraded Gossamer Bio to Neutral from Overweight.
Unlock Full Analyst Thesis, Get the complete breakdown of rating reason for GOSS
Unlock Now

Valuation Metrics

The current forward P/E ratio for Gossamer Bio Inc (GOSS.O) is 0.00, compared to its 5-year average forward P/E of -2.50. For a more detailed relative valuation and DCF analysis to assess Gossamer Bio Inc's fair value, Click here.

Forward PE

The forward P/E ratio is a valuation metric that divides a company's current stock price by its estimated future earnings per share over the next 12 months.
StronglyUndervaluedUndervaluedFairOvervaluedStronglyOvervalueddotted line Image
N/A
5Y Average PE
-2.50
Current PE
0.00
Overvalued PE
-1.16
Undervalued PE
-3.84

Forward EV/EBITDA

The forward EV/EBITDA ratio is a valuation metric that divides a company's enterprise value (EV) by its estimated future earnings before interest, taxes, depreciation, and amortization (EBITDA) over the next 12 months.
StronglyUndervaluedUndervaluedFairOvervaluedStronglyOvervalueddotted line Image
N/A
5Y Average EV/EBITDA
-2.29
Current EV/EBITDA
-1.29
Overvalued EV/EBITDA
-0.45
Undervalued EV/EBITDA
-4.14

Forward PS

The forward P/S ratio is a valuation metric that divides a company's current stock price by its estimated future sales (or revenue) per share over the next 12 months.
StronglyUndervaluedUndervaluedFairOvervaluedStronglyOvervalueddotted line Image
N/A
5Y Average PS
22.37
Current PS
1.43
Overvalued PS
101.29
Undervalued PS
-56.55

Financials

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Quarterly

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Whales Holding GOSS

A
Artal Group S.A.
Holding
GOSS
+16.55%
3M Return
N
New Enterprise Associates, Inc.
Holding
GOSS
+3.64%
3M Return

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Frequently Asked Questions

What is Gossamer Bio Inc (GOSS) stock price today?

The current price of GOSS is 0.4179 USD — it has increased 12.38

What is Gossamer Bio Inc (GOSS)'s business?

Gossamer Bio, Inc. is a late-stage, clinical biopharmaceutical company, which is focused on the development and commercialization of seralutinib for the treatment of pulmonary arterial hypertension and pulmonary hypertension associated with interstitial lung disease (PH-ILD). Seralutinib, also known as GB002, is an investigational inhaled, small-molecule, platelet-derived growth factor receptor (PDGFR), colony-stimulating factor 1 receptor (CSF1R), and c-KIT inhibitor, being evaluated in a Phase III clinical trial for the treatment of PAH. Seralutinib is designed to target the mechanisms that underlie pulmonary hypertension and to be delivered to the site of disease, via dry powder inhaler. Seralutinib is being evaluated in a Phase III clinical trial for the treatment of pulmonary arterial hypertension (PAH). Inhaled seralutinib, which is designed to act on both isoforms of the PDGFR, α and β, as well as the CSF1R and c-KIT pathways.

What is the price predicton of GOSS Stock?

Wall Street analysts forecast GOSS stock price to rise over the next 12 months. According to Wall Street analysts, the average 1-year price target for GOSS is12.33 USD with a low forecast of 10.00 USD and a high forecast of 15.00 USD. However, analyst price targets are subjective and often lag stock prices, so investors should focus on the objective reasons behind analyst rating changes, which better reflect the company's fundamentals.

What is Gossamer Bio Inc (GOSS)'s revenue for the last quarter?

Gossamer Bio Inc revenue for the last quarter amounts to 13.80M USD, increased 47.13

What is Gossamer Bio Inc (GOSS)'s earnings per share (EPS) for the last quarter?

Gossamer Bio Inc. EPS for the last quarter amounts to -0.20 USD, increased 33.33

How many employees does Gossamer Bio Inc (GOSS). have?

Gossamer Bio Inc (GOSS) has 161 emplpoyees as of April 10 2026.

What is Gossamer Bio Inc (GOSS) market cap?

Today GOSS has the market capitalization of 87.21M USD.