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KRSA

Korsana Biosciences, Inc. Common Stock

KRSA

Market cap $1.37B

30.14 USD

-0.08

0.26%

At close Updated Oct 30, 4:00 PM EDT

1 day

-0.26%

5 days

-3.18%

1 month

-5.81%

3 months

23.02%

6 months

30.08%

Year to date

221.32%

1 year

124.26%

5 years

-91.81%

10 years

-98.51%

About: Korsana Biosciences Inc is a biopharmaceutical company developing therapeutics to treat neurodegenerative diseases beginning with Alzheimer's disease (AD. The company's flagship product candidate, KRSA-028, is an anti-amyloid beta antibody that combines the proprietary Therapeutic Targeting (THETA) platform with well-validated aspects from other anti-Ab products that have achieved regulatory approval or are in late-stage clinical trials.

Healthcare Biotechnology

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Korsana Biosciences Completes Closing of Merger with Cyclerion Therapeutics and Previously Announced Private Placement of $380 Million

Advancing lead program KRSA-028 toward the clinic, with Phase 1 healthy volunteer data expected mid-2027 and interim proof-of-concept data in Alzheimer's patients anticipated by year-end 2027 or first quarter of 2028

Korsana Biosciences Completes Closing of Merger with Cyclerion Therapeutics and Previously Announced Private Placement of $380 Million

SHAREHOLDER ALERT: The M&A Class Action Firm Announces An Investigation of Cyclerion Therapeutics, Inc. (NASDAQ: CYCN)

NEW YORK, April 2, 2026 /PRNewswire/ -- Class Action Attorney Juan Monteverde with Monteverde & Associates PC (the "M&A Class Action Firm"), has recovered millions of dollars for shareholders and is recognized as a Top 50 Firm in the 2025 ISS Securities Class Action Services Report. The firm is headquartered at the Empire State Building in New York City and is investigating Cyclerion Therapeutics, Inc. (NASDAQ: CYCN ) related to its merger with Korsana Biosciences, Inc. Upon the closing of the proposed transaction, Cyclerion shareholders are expected to own approximately 1.5% of the combined company.

SHAREHOLDER ALERT: The M&A Class Action Firm Announces An Investigation of Cyclerion Therapeutics, Inc. (NASDAQ: CYCN)

CYCN Stock Alert: Halper Sadeh LLC is Investigating Whether Cyclerion Therapeutics, Inc. is Obtaining a Fair Price for its Shareholders

NEW YORK--(BUSINESS WIRE)--Halper Sadeh LLC, an investor rights law firm, is investigating the merger of Cyclerion Therapeutics, Inc. (NASDAQ: CYCN) and Korsana Biosciences, Inc. Upon closing of the proposed transaction, Cyclerion shareholders are expected to own approximately 1.5% of the combined company. Halper Sadeh encourages Cyclerion shareholders to click here to learn more about their rights and options or contact Daniel Sadeh or Zachary Halper free of charge at (212) 763-0060 or sadeh@h.

CYCN Stock Alert: Halper Sadeh LLC is Investigating Whether Cyclerion Therapeutics, Inc. is Obtaining a Fair Price for its Shareholders

Shareholder Alert: Ademi LLP investigates whether Cyclerion Therapeutics Inc. is obtaining a Fair Price for Public Shareholders

MILWAUKEE, April 1, 2026 /PRNewswire/ -- Ademi LLP is investigating Cyclerion (NASDAQ: CYCN) for possible breaches of fiduciary duty and other violations of law in its recently announced transaction with Korsana. Click here to learn how to join our investigation and obtain additional information or contact us at [email protected] or toll-free: 866-264-3995.

Shareholder Alert: Ademi LLP investigates whether Cyclerion Therapeutics Inc. is obtaining a Fair Price for Public Shareholders

Cyclerion Therapeutics Stock Soars 350% On Korsana Merger, $380 Million Financing

Under the deal, the combined company is expected to operate as Korsana Biosciences and trade on the Nasdaq under the ticker symbol KRSA. The move appears to be driving enthusiasm because it gives public-market investors exposure to Korsana's lead program, KRSA-028, a next-generation shuttled monoclonal antibody targeting amyloid beta for the treatment of Alzheimer's disease.

Cyclerion Therapeutics Stock Soars 350% On Korsana Merger, $380 Million Financing

Cyclerion Therapeutics, Inc. (CYCN) M&A Call Prepared Remarks Transcript

Cyclerion Therapeutics, Inc. (CYCN) M&A Call Prepared Remarks Transcript

Cyclerion Therapeutics, Inc. (CYCN) M&A Call Prepared Remarks Transcript

Cyclerion Therapeutics and Korsana Biosciences Announce Merger Agreement

WALTHAM, Mass.--(BUSINESS WIRE)---- $CYCN--Cyclerion Therapeutics, Inc. (“Cyclerion”) (Nasdaq: CYCN) and Korsana Biosciences, Inc. (“Korsana”), a privately-held biotechnology company discovering and developing novel therapies to reduce the burden of neurodegenerative diseases, today announced that they have entered into a definitive merger agreement for an all-stock transaction. Upon completion of the transaction, the combined company plans to operate under the name Korsana Biosciences, Inc. and trade on.

Cyclerion Therapeutics and Korsana Biosciences Announce Merger Agreement

Cyclerion Therapeutics Announces Progress Toward CYC-126 Phase 2 Proof-of-Concept Study with FDA Feedback and Formation of Clinical Advisory Board

–Received Positive Pre-Investigational New Drug (“IND”) Written Feedback from the U.S. Food and Drug Administration (“FDA”)– –Clinical Advisory Board (“CAB”) Includes Key Leaders across Neuropsychiatry, Anesthesiology, and Clinical Development – –Remain On Track to Initiate CYC-126's Phase 2 Proof-of-Concept (“POC”) Study in Treatment Resistant Depression (“TRD”) in the Second Half of 2026 – CAMBRIDGE, Mass., Feb. 17, 2026 (GLOBE NEWSWIRE) -- Cyclerion Therapeutics, Inc. (Nasdaq: CYCN) (“Cyclerion” or "Company”), a biopharmaceutical company pioneering neuropsychiatric therapies, today announced it has received positive written regulatory feedback and responses from the FDA on CYC-126's Phase 2 POC study in TRD and its path to potential regulatory approval.

Cyclerion Therapeutics Announces Progress Toward CYC-126 Phase 2 Proof-of-Concept Study with FDA Feedback and Formation of Clinical Advisory Board

Cyclerion Therapeutics, Inc. (CYCN) Discusses Medsteer Development Collaboration and Updates on Phase 2 Proof-of-Concept Study in Treatment-Resistant Depression Prepared Remarks Transcript

Cyclerion Therapeutics, Inc. (CYCN) Discusses Medsteer Development Collaboration and Updates on Phase 2 Proof-of-Concept Study in Treatment-Resistant Depression Prepared Remarks Transcript

Cyclerion Therapeutics, Inc. (CYCN) Discusses Medsteer Development Collaboration and Updates on Phase 2 Proof-of-Concept Study in Treatment-Resistant Depression Prepared Remarks Transcript

Cyclerion Therapeutics Announces Strategic Agreement with Medsteer and Progress Toward Initiating Phase 2 Proof-of-Concept Study for CYC-126 in Treatment-Resistant Depression

– Cyclerion Strengthens Development of Closed-Loop Anesthetic Platform through Strategic Collaboration Agreement with Medsteer – – Comprehensive Business Update and Path to Initiating Phase 2 Proof-of-Concept (“POC”) Study in the Second Half of 2026 – – Webcast Being Held on January 6, 2026 at 8:00 a.m. ET, Featuring Key Opinion Leader, Dr. Husseini Manji – CAMBRIDGE, Mass.

Cyclerion Therapeutics Announces Strategic Agreement with Medsteer and Progress Toward Initiating Phase 2 Proof-of-Concept Study for CYC-126 in Treatment-Resistant Depression

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