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COLLEGIUM PHARMACEUTICAL, INC

For the period ended Dec 31, 2025. Filed Feb 26, 2026.

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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 Feb 26, 2026

COLL$24.71+2.1%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

Rule 10b5-1 Trading Plans

The following table shows the “Rule 10b5-1 trading arrangements” or “non-Rule 10b5-1 trading arrangements” (as each term is defined in Item 408(a) of Regulation S-K)adopted, amended, orterminated by our directors and officers during the three months ended December 31, 2025:

Trading Arrangement
Name · Title · Action · Effective Date · Rule 10b5-1 · Non-Rule 10b5-1 · Scheduled Expiration Date of Trading Plan(1) · Maximum Shares Subject to Trading Plan
David DieterExecutive Vice President, General Counsel and Corporate SecretaryAdoptionDecember 8, 2025XMarch 31, 202628,683
Colleen TupperExecutive Vice President and Chief Financial OfficerAdoptionNovember 17, 2025XOctober 30, 202655,175

(1) A trading arrangement may expire on an earlier date if all contemplated transactions are completed before such trading arrangement’s expiration date, upon termination by broker or the holder of the trading arrangement, or as otherwise provided in the trading arrangement.

Each Rule 10b5-1 trading arrangement described above was adopted in compliance with Rule 10b5-1(c) under the Exchange Act.

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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.