13D Filings
CYCLERION THERAPEUTICS, INC.
CYCN
Amendment
Ownership

27.90%

Total Shares

1,028,086

Issuer CIK

1755237

CUSIP

23255M204

Event Date

Mar 24, 2025

Accepted

Mar 28, 2025, 09:47 PM

Reporting Persons (1)
NameType% of ClassAggregateSole VotingShared Voting
Peter M. Hecht
Individual
27.90%1,028,0861,028,0860
Disclosure Items (4)

Security Title

Common Stock, no par value

Issuer Name

CYCLERION THERAPEUTICS, INC.

Issuer Address

245 First Street, 18th Floor, Cambridge, MA, 02142

Item 4 of the Original Statement is hereby supplemented by adding the following: On March 25, 2025, the Reporting Person purchased directly from the Issuer 181,818 shares of Common Stock for a total purchase price of approximately $500,000 (or $2.75 per share) in a private placement transaction pursuant to the Stock Purchase Agreement.

Percentage of Class

Item 5 of the Original Statement is hereby amended and restated in its entirety to read as follows: As calculated in accordance with Rule 13d-3 under the Securities Exchange Act of 1934, as amended, the Reporting Person beneficially owns an aggregate of 1,028,086 shares of Common Stock, representing (i) 559,203 shares of Common Stock held directly (inclusive of the 181,818 shares of Common Stock purchased pursuant to the Stock Purchase Agreement), (ii) an additional 117,846 shares of Common Stock that underlie stock options that are currently exercisable or will be exercisable within 60 days, and (iii) 351,037 shares of Common Stock that may be issued upon conversion of shares of Preferred Stock issued to the Reporting Person under the Stock Purchase Agreement.

Number of Shares

The information in Items 7 through 10 of the cover page is incorporated by reference into this Item 5(b).

Transactions

Except as described in this Statement, the Reporting Person has not effected any transactions in the Common Stock during the past 60 days.

Shareholders

Not applicable.

Date of 5% Ownership

Not applicable.

Item 7 of the Original Statement is hereby supplemented as follows: Exhibit 4 Stock Purchase Agreement, dated March 21, 2025, by and among the Issuer and the investors party thereto (incorporated by reference to Exhibit 10.1 to the Issuer's Current Report on Form 8-K filed with the Securities and Exchange Commission on March 25, 2025).