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Today's Brief

Korsana Biosciences, Inc.

private/Cyclerion Therapeutics, Inc.private

Cyclerion to Merge with Korsana in Stock-for-Stock Transaction

StockDefinitive Proxymedium confidence

Merger Arbeconomics, downside, days

Deal value

stock

Per-share offer

Premium

Days to close

Term fee

ConsiderationStock
AnnouncedApr 24, 2026
Days outstanding84d
Expected close
Termination fee
Reverse term fee
Go-shop period
Fiduciary out
Financing condition
Debt commitment
Insider lock-up

No structured deal economics extracted yet. Re-run the scanner or fall back to the source filing below.


Timelineannounced → close
  1. Announced

    Apr 24, 2026

  2. Preliminary Proxy

  3. Definitive Proxy

  4. Record date

  5. Shareholder vote

  6. Expected close


Vote Mechanicsrecord / mailing / vote
Vote required
Vote date
Record date
Mailing date
Record → vote
Threshold
Min approvalparsed
Shares outstanding
Insider lock-up

Regulatory & ConditionsHSR / EU / CFIUS / MAC

No regulatory or closing-conditions data extracted yet. The merger agreement Exhibit 10.1 contains this in the “Conditions to Closing” and “Regulatory Approvals” articles.


Closing Conditionsapprovals · vote · financing · lockups

No closing-condition data extracted.


Interloper Riskcompeting bids, activist filers

No competing-bidder, activist, or dissident-proxy signals in the database for this target.


Advisors

Acquirer side· Cyclerion Therapeutics, Inc.

Legal

Ropes & Gray LLP

  • · William J. Michener
  • · Zachary Blume
William J. Michener, Esq. Zachary Blume, Esq. Ropes & Gray LLP Prudential Tower 800 Boylston Street Boston, Massachusetts 02199 (617) 951-7000

Target side· Korsana Biosciences, Inc.

Legal

Gibson, Dunn & Crutcher LLP

  • · Ryan A. Murr
  • · Branden C. Berns
Ryan A. Murr, Esq. Branden C. Berns, Esq. Gibson, Dunn & Crutcher LLP One Embarcadero Center, Suite 2600 San Francisco, California 94111 (415) 393-8373

Counterparty Historyprior deals in DB
FirmRoleSideDeals in DB
Gibson, Dunn & Crutcher LLPLegalTarget5View deals →
Ropes & Gray LLPLegalAcquirer1View deals →

Sources

Cyclerion Therapeutics, Inc. and Korsana Biosciences, Inc. entered into a Merger Agreement on April 1, 2026 (amended April 17, 2026) pursuant to which Korsana shareholders will receive Cyclerion common stock, preferred stock, warrants, and options in exchange for their Korsana securities based on an exchange ratio. The combined company will be renamed Korsana Biosciences, Inc. with Korsana operating as a wholly-owned subsidiary. The transaction requires approval from shareholders of both companies.

Item id: c70e1607-fd0c-418a-adfe-129f7367fc47 · ingested Apr 24, 2026