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Cyclerion Therapeutics, Inc.

For the period ended Dec 31, 2025. Filed Mar 30, 2026.

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About this filing

A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Mar 30, 2026

KRSA$31.17+0.4%Stored close · as of Nov 9, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

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Contents

Item 9B. Other Information

(a)None

(b) Director and Officer Trading Arrangements

None of our directors or officers adopted or terminated a Rule 10b5-1 trading arrangement or adopted or terminated a non-Rule 10b5-1 trading arrangement (as defined in Item 408(c) of Regulation S-K) during the fourth quarter ended December 31, 2025.

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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.