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Equillium, Inc.

For the period ended Dec 31, 2025. Filed Mar 25, 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 25, 2026

EQ$1.50-0.7%Stored close · as of Nov 9, 2026

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

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Item 9B. Other Information

Trading Arrangements

During the three months ended December 31, 2025, an officer (as defined in Rule 16a-1(f) under the Exchange Act) adopted a contract, instruction or written plan for the sale of our securities set forth in the table below:

Type of Trading Arrangement · Total Sharesof Common
Name and Position · Action · Adoption/TerminationDate · Rule10b5-1(1) · Non-Rule10b5-1(2) · Stock to beSold · Expiration Date
Penny Tom, SVP Finance & Principal Accounting OfficerAdoption(3)October 10, 2025X351,948October 10, 2026

(1) Contract, instruction or written plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act.

(2) “Non-Rule 10b5-1 trading arrangement” as defined in Item 408(c) of Regulation S-K under the Exchange Act.

(3)Represents the adoption of a written plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) adopted on December 12, 2023.

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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.