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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
0.300
Open
0.300
VWAP
0.22
Vol
58.02M
Mkt Cap
79.80M
Low
0.162
Amount
12.67M
EV/EBITDA(TTM)
--
Total Shares
234.70M
EV
179.34M
EV/OCF(TTM)
--
P/S(TTM)
1.41
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)
2026-05-18
16:20:00
Stocks Open Mixed as Rising Oil Prices Raise Concerns
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2026-05-18
12:10:00
U.S. Stocks Mostly Lower at Noon as Oil Prices Climb
select
2026-05-18
09:10:00
Surging Oil Prices Impact Stock Futures Volatility
select
2026-05-18
07:20:00
Gossamer Bio Launches Exchange Offer for Up to $72 Million
select
2026-05-18
07:10:00
Gossamer Bio Reports Q1 Revenue of $17M
select
2026-05-18
07:10:00
Cash and Cash Equivalents Total $99.2 Million
select
2026-03-23 (ET)
2026-03-23
09:10:00
U.S. Stock Futures Rise, Airline Stocks Benefit
select

News

Newsfilter
8.5
05-18Newsfilter
PinnedGossamer Bio Launches Exchange Offer for Convertible Notes
  • Exchange Offer Initiated: Gossamer Bio has launched an exchange offer for its existing 5.00% Convertible Senior Notes, proposing to exchange them for up to $72 million in new 7.50% Convertible Senior Secured Notes, which is expected to improve the company's capital structure and reduce financial costs.
  • High Support from Noteholders: Approximately 75.2% of existing noteholders have signed a transaction support agreement to back the exchange offer, reflecting market confidence in the company's restructuring plan and enhancing the liquidity of the bonds.
  • Advantages of New Bond Terms: The new bonds will mature in 2030 with an interest rate of 7.50% and conversion rights, which are expected to attract more investors and enhance the company's financing capabilities and market competitiveness.
  • Key Timeline: The exchange offer will expire on June 16, 2026, with an early tender deadline of June 1, 2026, ensuring timely participation will enable the company to successfully complete its debt restructuring and optimize its capital structure.
PRnewswire
7.0
04:56 AMPRnewswire
Reminder for Gossamer Bio Securities Class Action
  • Class Action Notice: Rosen Law Firm reminds investors who purchased Gossamer Bio securities between June 16, 2025, and February 20, 2026, to apply as lead plaintiffs by June 1, 2026, to participate in the class action and seek compensation.
  • Fee Arrangement: Investors joining the class action will incur no upfront costs, as the law firm operates on a contingency fee basis, which alleviates financial burdens and encourages more victims to participate.
  • Lawsuit Background: The lawsuit alleges that Gossamer Bio provided overly optimistic statements while concealing significant adverse facts regarding the study design of its Phase 3 PROSERA study, resulting in investor losses when the truth emerged.
  • Law Firm Credentials: Rosen Law Firm specializes in securities class actions and has achieved the largest securities class action settlement against a Chinese company, demonstrating its expertise and success in the field, which enhances investor confidence in their representation.
Globenewswire
7.0
00:47 AMGlobenewswire
Notice of Class Action Lawsuit for Gossamer Bio Securities
  • Class Action Notice: Rosen Law Firm reminds investors who purchased Gossamer Bio securities between June 16, 2025, and February 20, 2026, that they must apply to be lead plaintiff by June 1, 2026, to participate in the class action without any out-of-pocket fees.
  • Lawsuit Background: The lawsuit alleges that Gossamer made overwhelmingly positive statements while concealing material adverse facts regarding the Phase 3 PROSERA study, particularly concerning the placebo response at Latin American testing sites, resulting in investor losses.
  • Law Firm Credentials: Rosen Law Firm specializes in securities class actions and has achieved the largest securities class action settlement against a Chinese company, recovering over $438 million for investors in 2019 alone, showcasing its strong track record in this field.
  • Participation Instructions: Investors can visit the Rosen Law Firm website or call the toll-free number for more information, emphasizing the importance of selecting qualified counsel to protect their interests before the class is certified.
seekingalpha
9.5
05-18seekingalpha
Gossamer Bio Q1 2026 Earnings Call Insights
  • Clinical Data Interpretation: CEO Faheem Hasnain highlighted that PROSERA demonstrated a clinically meaningful improvement of 13.3 meters in 6-minute walk distance at week 24, with a p-value of 0.032, which, while statistically significant, did not meet the pre-specified 0.025 threshold, potentially impacting future regulatory approval.
  • Cost Control Measures: The company implemented significant layoffs affecting approximately half of its workforce and sharply reduced operating expenses as PROSERA winds down, a strategy aimed at enhancing financial stability and optimizing resource allocation.
  • Financial Status Update: As of March 31, 2026, Gossamer reported cash and cash equivalents and marketable securities totaling $99 million, with an expected cash runway extending into the first quarter of 2027, indicating a healthy short-term financial position.
  • NDA Submission Plan: The company plans to submit its New Drug Application (NDA) in September 2026 and has scheduled a pre-NDA meeting with the FDA, with potential approval expected in the third quarter of 2027, laying the groundwork for future market launch.
Globenewswire
7.0
05-18Globenewswire
Gossamer Bio Investors Class Action Reminder
  • Lawsuit Deadline: Investors in Gossamer Bio must file a lead plaintiff motion by June 1, 2026, to participate in a class action lawsuit concerning securities purchased between June 16, 2025, and February 20, 2026, aimed at recovering losses from the stock price collapse.
  • Stock Price Collapse: On February 23, 2026, Gossamer disclosed that its Phase 3 PROSERA study for pulmonary arterial hypertension failed to meet its primary endpoint, resulting in a stock price drop of $1.71, or 80.3%, closing at $0.42 per share, which severely impacted investors.
  • False Statements Allegation: The class action lawsuit alleges that throughout the class period, the company made materially false and misleading statements and failed to disclose significant adverse facts about its business and operations, particularly regarding the treatment status of patients in Latin America.
  • Legal Consultation Information: Investors seeking more information or wishing to participate in the lawsuit can contact Glancy Prongay Wolke & Rotter LLP, providing their contact details for further legal support and inquiries.
PRnewswire
7.0
05-18PRnewswire
Gossamer Bio Faces Class Action Lawsuit Over Trial Failures
  • Lawsuit Background: Gossamer Bio, Inc. (NASDAQ:GOSS) is facing a class action lawsuit following its February 23, 2026 announcement that the PROSERA study failed to meet its primary endpoint, covering the period from June 16, 2025, to February 20, 2026, indicating significant investor dissatisfaction with the company's transparency.
  • Stock Price Plunge: Following the trial results announcement, Gossamer's stock price plummeted by 80%, which not only undermined investor confidence but also prompted investigations by shareholder rights firms like Hagens Berman, potentially affecting the company's future financing capabilities.
  • Trial Design Controversy: The lawsuit alleges that Gossamer had issues with trial design, particularly regarding patient recruitment and monitoring, as management previously claimed the drug could be a “first-in-class treatment for PAH,” yet failed to disclose potential flaws in the trial adequately.
  • Listing Compliance Risks: On April 9, 2026, Gossamer revealed that it had not met the minimum share bid price ($1) required for continued listing on the Nasdaq Global Select Market since February 24, 2026, which could lead to delisting risks and further exacerbate investor concerns.
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
Barclays
Eliana Merle
Underweight
downgrade
AI Analysis
2026-05-19
New
Reason
Barclays
Eliana Merle
Price Target
AI Analysis
2026-05-19
New
downgrade
Underweight
Reason
Barclays analyst Eliana Merle lowered the firm's price target on Gossamer Bio to 28c from 30c and keeps an Underweight rating on the shares. The company's exchange offer for its 2027 notes reduced debt and extends maturity, which is positive, but is meaningfully equity dilutive, the analyst tells investors in a research note.
Cantor Fitzgerald
Overweight -> Neutral
downgrade
2026-03-23
Reason
Cantor Fitzgerald
Price Target
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.
Unlock Full Analyst Thesis, Get the complete breakdown of rating reason for GOSS
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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 -2.49. 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
-2.49
Current PE
0.00
Overvalued PE
-1.14
Undervalued PE
-3.85

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
-2.30
Current EV/EBITDA
-1.84
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
14.23
Current PS
1.61
Overvalued PS
72.74
Undervalued PS
-44.28

Financials

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Whales Holding GOSS

A
Artal Group S.A.
Holding
GOSS
+9.77%
3M Return
N
New Enterprise Associates, Inc.
Holding
GOSS
+2.36%
3M Return
R
Rock Springs Capital Management LP
Holding
GOSS
+0.18%
3M Return

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Frequently Asked Questions

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

The current price of GOSS is 0.1927 USD — it has decreased -43.24

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 16.95M USD, increased 71.45

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 25.00

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

Gossamer Bio Inc (GOSS) has 161 emplpoyees as of May 19 2026.

What is Gossamer Bio Inc (GOSS) market cap?

Today GOSS has the market capitalization of 79.80M USD.