FALSE 0001267565 0001267565 2026-02-26 2026-02-26

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
Date of Report (Date of earliest event reported): February 26, 2026
COLLEGIUM PHARMACEUTICAL, INC.
(Exact name of registrant as specified in its charter)

Virginia | 001-37372 | 03-0416362
(State or other jurisdiction of incorporation) | (Commission File Number) | (IRS Employer Identification No.)
| 100 Technology Center Drive |
| Suite 300 |
| Stoughton, MA 02072 |
| (Address of principal executive offices) (Zip Code) |

Registrant’s telephone number, including area code: (781) 713-3699
(Former name or former address, if changed since last report.)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class | Trading Symbol(s) | Name of each exchange on which registered
Common stock, par value $0.001 per share | COLL | The NASDAQ Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02 Results of Operations and Financial Condition.
On February 26, 2026, Collegium Pharmaceutical, Inc. (the “Company”) issued a press release announcing its financial results for the quarterly period and fiscal year ended December 31, 2025. The full text of the press release issued in connection with the announcement is attached hereto as Exhibit 99.1 and is being furnished, not filed, under Item 2.02 of this Current Report on Form 8-K.
Item 7.01 Regulation FD Disclosure.
On February 26, 2026, Collegium Pharmaceutical, Inc. released an earnings presentation. The presentation is attached hereto as Exhibit 99.2 and is being furnished, not filed, under Item 7.01 of this Current Report on Form 8-K.
Item 9.01 Financial Statements and Exhibits.
(d)Exhibits

EXHIBIT TABLE
| Exhibit No. |  | Description
| 99.1 |  | Press Release, dated February 26, 2026
| 99.2 |  | Earnings Presentation, dated February 26, 2026
| 104 |  | Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

| Collegium Pharmaceutical, Inc.
| By: | /s/ Colleen Tupper
|  | Colleen Tupper
|  | Executive Vice President and Chief Financial Officer

Dated: February 26, 2026