Cyclerion Therapeutics (CYCN) investor reports 19.4% stake and preferred share conversion
Rhea-AI Filing Summary
Peter M. Hecht has updated his beneficial ownership in Cyclerion Therapeutics, Inc. common stock. He now beneficially owns 910,240 shares of Common Stock, representing 19.4% of the outstanding class, with sole voting and sole dispositive power over all of these shares.
The ownership change reflects the forfeiture of options to purchase 110,984 shares of Common Stock and the conversion of 351,037 shares of non-voting Series A Convertible Preferred Stock into 351,037 shares of Common Stock. The 19.4% figure is based on 4,681,351 shares of Common Stock outstanding, consisting of 4,330,314 shares outstanding as of June 30, 2026 plus 351,037 shares issued on July 16, 2026 upon Hecht’s conversion election. Apart from the events described, he reports no other transactions in the company’s common stock during the past 60 days.
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Filing Explained
The filing records an amendment to a major-holder ownership report; the
Key Figures
Beneficial ownership: 910,240 shares of Common Stock
Ownership percentage: 19.4%
Shares outstanding basis: 4,681,351 shares of Common Stock
+4 more
7 metrics
Beneficial ownership
910,240 shares of Common Stock
Shares beneficially owned by Peter M. Hecht under Rule 13d-3
Ownership percentage
19.4%
Percent of Cyclerion Common Stock class represented by 910,240 shares
Shares outstanding basis
4,681,351 shares of Common Stock
Total shares outstanding used to calculate the 19.4% ownership
Common shares previously outstanding
4,330,314 shares of Common Stock
Shares outstanding as of June 30, 2026 from the issuer’s Form S-4
New shares from conversion
351,037 shares of Common Stock
Shares issued July 16, 2026 upon conversion of Preferred Stock
Preferred shares converted
351,037 shares of Preferred Stock
Non-voting Series A Convertible Preferred Stock converted into Common Stock
Options forfeited
110,984 options
Options to purchase 110,984 shares of Common Stock forfeited by the reporting person
Key Terms
beneficially owns, Rule 13d-3, non-voting Series A Convertible Preferred Stock, Sole Voting Power, +1 more
5 terms
beneficially owns financial
"As calculated in accordance with Rule 13d-3 , as amended, the Reporting Person beneficially owns 910,240"
Beneficially owns means a person or entity enjoys the economic benefits and control of a security even if the legal title or registration is held in another name. Think of it like having the keys and profits from a car that is registered to a friend: you use it, benefit from it, and make decisions about it even though the official paperwork lists someone else. For investors, this matters because it reveals who truly controls shares, affects voting power, potential conflicts of interest, and regulatory disclosure obligations.
Rule 13d-3 regulatory
"As calculated in accordance with Rule 13d-3 , as amended, the Reporting Person beneficially owns"
Rule 13d-3 defines who is treated as the beneficial owner of a company’s shares for U.S. securities disclosure rules — essentially anyone who has the power to vote or direct how shares are voted, or the power to buy or sell them, even if they don’t hold the certificates. For investors this matters because crossing certain ownership thresholds triggers public filing and disclosure obligations and signals potential control or influence, much like having the keys to a car implies you can drive it even if it’s registered to someone else.
non-voting Series A Convertible Preferred Stock financial
"conversion of 351,037 shares of non-voting Series A Convertible Preferred Stock of the Issuer"
Sole Voting Power financial
"Number of Shares Beneficially Owned by Each Reporting Person With: | 7 | Sole Voting Power 910,240.00"
Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.
Sole Dispositive Power financial
"9 | Sole Dispositive Power 910,240.00 10 | Shared Dispositive Power 0.00"
Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.
AI-generated analysis. How Rhea-AI works. Not financial advice.
FAQ
What percentage of Cyclerion Therapeutics (CYCN) does Peter M. Hecht own?
Peter M. Hecht’s beneficial ownership represents 19.4% of Cyclerion’s outstanding Common Stock. This percentage is based on 4,681,351 common shares outstanding, including new shares issued upon his preferred stock conversion.
What corporate actions changed Peter M. Hecht’s CYCN ownership in this amendment?
The update reflects two actions: the forfeiture of options to purchase 110,984 shares of Common Stock and the conversion of 351,037 non-voting Series A Convertible Preferred shares into 351,037 Common shares of Cyclerion Therapeutics (CYCN).
Were there other recent CYCN stock transactions by Peter M. Hecht?
Apart from the option forfeiture and preferred stock conversion described in this amendment, Peter M. Hecht reports no additional transactions in Cyclerion Therapeutics (CYCN) Common Stock during the past 60 days.