SENS

SENSEONICS HOLDINGS, INC._March 2, 2026 0001616543false00016165432026-03-022026-03-02

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): March 2, 2026 ​

SENSEONICS HOLDINGS, INC.

(Exact Name of Registrant as Specified in its Charter)

​ ​

​

​

​

​

Delaware ​ 001-37717 ​ 47-1210911

(State or Other Jurisdiction of Incorporation) ​ (Commission File Number) ​ (IRS Employer Identification No.)

​ ​

20451 Seneca Meadows Parkway Germantown, MD 20876-7005

(Address of Principal Executive Office) (Zip Code)

​ Registrant's telephone number, including area code: (301) 515-7260 Not Applicable 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

SENS

Nasdaq Stock Market LLC

​ 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 March 2, 2026, Senseonics Holdings, Inc. (the “Company”) issued a press release announcing its financial results for the fourth quarter and full year ended December 31, 2025, as well as information regarding a conference call to discuss these financial results and the Company’s recent corporate highlights and outlook. This press release has been furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by this reference. The information in this Current Report on Form 8-K, including Exhibit 99.1 attached hereto, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) or otherwise subject to the liabilities of that section. The information contained herein and in the accompanying exhibit is not incorporated by reference in any filing of the Company under the Securities Act of 1933, as amended, or the Exchange Act, whether made before or after the date hereof and irrespective of any general incorporation language in any filings. Item 9.01. Financial Statements and Exhibits. ​ (d) Exhibits.

Exhibit ​ ​

Number

Description

99.1

Press Release of Senseonics Holdings, Inc. dated March 2, 2026. ​ ​

104

Cover Page Interactive Data (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. ay

​

​

Date: March 2, 2026

SENSEONICS HOLDINGS, INC.

​ ​ ​

​ ​ ​

​ ​ ​

​ By: /s/ Rick Sullivan

​ Name: Rick Sullivan

​ Title: Chief Financial Officer

​ ​ ​ ​

​

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0001616543

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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): January 12, 2026

SENSEONICS

HOLDINGS, INC.

(Exact Name of Registrant as Specified in its Charter)

Delaware

001-37717

47-1210911

(State or Other

Jurisdiction of Incorporation)

(Commission File Number)

(IRS Employer

Identification No.)

20451 Seneca Meadows Parkway

Germantown, MD 20876-7005

(Address of Principal Executive Office) (Zip Code)

Registrant's telephone number, including area code: (301) 515-7260

Not Applicable

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

SENS

Nasdaq Stock Market LLC

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 January 12, 2026, Senseonics Holdings, Inc. (the “Company”) issued a press release announcing, among other things, business updates, including certain preliminary, unaudited financial information for the year ended December 31, 2025. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and incorporated by reference herein.

The information set forth in this Item 2.02 and contained in the press release furnished as Exhibit 99.1 shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and is not incorporated by reference into any of the Company's filings under the Securities Act of 1933, as amended, or the Exchange Act, whether made before or after the date hereof, except as shall be expressly set forth by specific reference in any such filing.

Item 8.01 Other Events.

On January 12, 2026, the Company also reported the following preliminary unaudited financial information:

·The Company generated preliminary unaudited revenue of approximately $14.2 million for the fourth quarter of 2025 and preliminary unaudited revenue of approximately $35.2 million for the year ended December 31, 2025.

·The Company’s unaudited balance of cash, cash equivalents and restricted cash as of December 31, 2025, is expected to be approximately $94.3 million.

The Company also reported the following operational information:

·The Company’s patient base increased 103% in the fourth quarter of 2025, compared to the fourth quarter of 2024.

Forward Looking Statements

Any statements in this report about future expectations, plans and prospects for the Company, including the anticipated level of fourth quarter 2025 and full year 2025 revenue and cash, cash equivalents and restricted cash as of December 31, 2025 constitute forward-looking statements within the meaning of The Private Securities Litigation Reform Act of 1995. Actual results may differ materially from those indicated by such forward-looking statements as a result of various important factors, including: uncertainties inherent in the financial close process in connection with the finalization of the Company’s 2025 financial statements, as well as the audit of such financial statements by the Company’s independent registered public accounting firm and such other factors as are set forth in the risk factors detailed in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024, the Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2025, and subsequent reports filed with the Securities and Exchange Commission under the heading "Risk Factors." The forward-looking statements included in this report represent the Company’s views as of the date hereof. The Company anticipates t

SENSEONICS HOLDINGS, INC._November 5, 2025 0001616543false00016165432025-11-052025-11-05

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): November 5, 2025 ​

SENSEONICS HOLDINGS, INC.

(Exact Name of Registrant as Specified in its Charter)

​ ​

​

​

​

​

Delaware ​ 001-37717 ​ 47-1210911

(State or Other Jurisdiction of Incorporation) ​ (Commission File Number) ​ (IRS Employer Identification No.)

​ ​

20451 Seneca Meadows Parkway Germantown, MD 20876-7005

(Address of Principal Executive Office) (Zip Code)

​ Registrant's telephone number, including area code: (301) 515-7260 Not Applicable 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

SENS

NYSE American

​ 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 November 5, 2025, Senseonics Holdings, Inc. (the “Company”) issued a press release announcing its financial results for the quarter ended September 30, 2025, as well as information regarding a conference call to discuss these financial results and the Company’s recent corporate highlights and outlook. This press release has been furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by this reference. The information in this Current Report on Form 8-K, including Exhibit 99.1 attached hereto, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) or otherwise subject to the liabilities of that section. The information contained herein and in the accompanying exhibit is not incorporated by reference in any filing of the Company under the Securities Act of 1933, as amended, or the Exchange Act, whether made before or after the date hereof and irrespective of any general incorporation language in any filings. Item 9.01. Financial Statements and Exhibits. ​ (d) Exhibits.

Exhibit ​ ​

Number

Description

99.1

Press Release of Senseonics Holdings, Inc. dated November 5, 2025. ​ ​

104

Cover Page Interactive Data (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. ay

​

​

Date: November 5, 2025

SENSEONICS HOLDINGS, INC.

​ ​ ​

​ ​ ​

​ ​ ​

​ By: /s/ Rick Sullivan

​ Name: Rick Sullivan

​ Title: Chief Financial Officer

​ ​ ​ ​

​