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AI Earnings Predictions for Tandem Diabetes Care Inc. (TNDM)

Machine learning predictions based on historical earnings data and price patterns

Latest Prediction

BUY

1-Day Prediction

+13.62%

$21.04

100% positive prob.

5-Day Prediction

+14.20%

$21.15

100% positive prob.

20-Day Prediction

+28.62%

$23.82

95% positive prob.

Price at prediction: $18.52 Confidence: 99.6% Model AUC: 1.0000 Quarter: Q4 2025

Earnings Transcripts

SEC 8-K filings with transcript text

View All
2025
Q4

Q4 2025 Earnings

8-K BUY

Feb 19, 2026 · 100% conf.

AI Prediction BUY

1D

+13.62%

$21.04

Act: +32.67%

5D

+14.20%

$21.15

Act: +39.25%

20D

+28.62%

$23.82

Price: $18.52 Prob +5D: 100% AUC: 1.000
0001438133-26-000009

tndm-202602190001438133FALSE00014381332026-02-192026-02-19

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 19, 2026


Tandem Diabetes Care, Inc. (Exact name of registrant as specified in its charter)


Delaware001-3618920-4327508 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.) 12400 High Bluff Drive92130 San Diego California (Zip Code) (Address of principal executive offices)

Registrant’s telephone number, including area code: (858) 366-6900 N/A (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: ☐    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 ClassTrading SymbolName of Each Exchange on Which Registered Common Stock, par value $0.001 per shareTNDMNASDAQ Global 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 19, 2026, we issued a press release reporting our financial results for the quarter and year ended December 31, 2025. This press release has been furnished as Exhibit 99.1 to this report and is incorporated herein by this reference.

The information under this Item 2.02 and Exhibit 99.1 hereto is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise subject to the liabilities of that section, nor shall they be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits. (d)     Exhibits.

Number Description

99.1Press release of Tandem Diabetes Care, Inc. dated February 19, 2026.

104Cover Page Interactive Data File (embedded within the Inline XBRL document).

2

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.

Tandem Diabetes Care, Inc.

By:/s/ SHANNON M. HANSEN Shannon M. Hansen Executive Vice President, Chief Legal, Privacy & Compliance Officer and Secretary

Date: February 19, 2026 3

2025
Q3

Q3 2025 Earnings

8-K

Nov 6, 2025

0001438133-25-000186

tndm-202511060001438133FALSE00014381332025-11-062025-11-06

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 6, 2025


Tandem Diabetes Care, Inc. (Exact name of registrant as specified in its charter)


Delaware001-3618920-4327508 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.) 12400 High Bluff Drive92130 San Diego California (Zip Code) (Address of principal executive offices)

Registrant’s telephone number, including area code: (858) 366-6900 N/A (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: ☐    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 ClassTrading SymbolName of Each Exchange on Which Registered Common Stock, par value $0.001 per shareTNDMNASDAQ Global 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 November 6, 2025, we issued a press release reporting our financial results for the quarter ended September 30, 2025. This press release has been furnished as Exhibit 99.1 to this report and is incorporated herein by this reference.

The information under this Item 2.02 and Exhibit 99.1 hereto is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise subject to the liabilities of that section, nor shall they be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits. (d)     Exhibits.

Number Description

99.1Press release of Tandem Diabetes Care, Inc. dated September 30, 2025.

104Cover Page Interactive Data File (embedded within the Inline XBRL document).

2

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.

Tandem Diabetes Care, Inc.

By:/s/ SHANNON M. HANSEN Shannon M. Hansen Executive Vice President, Chief Legal, Privacy & Compliance Officer and Secretary

Date: November 6, 2025 3

2025
Q2

Q2 2025 Earnings

8-K

Aug 6, 2025

0001438133-25-000155

tndm-202508060001438133FALSE00014381332025-04-302025-04-30

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): August 6, 2025


Tandem Diabetes Care, Inc. (Exact name of registrant as specified in its charter)


Delaware001-3618920-4327508 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.) 12400 High Bluff Drive92130 San Diego California (Zip Code) (Address of principal executive offices)

Registrant’s telephone number, including area code: (858) 366-6900 N/A (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: ☐    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 ClassTrading SymbolName of Each Exchange on Which Registered Common Stock, par value $0.001 per shareTNDMNASDAQ Global 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 June 30, 2025, we issued a press release reporting our financial results for the quarter ended June 30, 2025. This press release has been furnished as Exhibit 99.1 to this report and is incorporated herein by this reference.

The information under this Item 2.02 and Exhibit 99.1 hereto is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise subject to the liabilities of that section, nor shall they be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits. (d)     Exhibits.

Number Description

99.1Press release of Tandem Diabetes Care, Inc. dated June 30, 2025.

104Cover Page Interactive Data File (embedded within the Inline XBRL document).

2

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.

Tandem Diabetes Care, Inc.

By:/s/ SHANNON M. HANSEN Shannon M. Hansen Executive Vice President, Chief Legal, Privacy & Compliance Officer and Secretary

Date: August 6, 2025 3

2025
Q1

Q1 2025 Earnings

8-K

Apr 30, 2025

0001438133-25-000068

tndm-202504300001438133FALSE00014381332025-04-302025-04-30

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): April 30, 2025


Tandem Diabetes Care, Inc. (Exact name of registrant as specified in its charter)


Delaware001-3618920-4327508 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.) 12400 High Bluff Drive92130 San Diego California (Zip Code) (Address of principal executive offices)

Registrant’s telephone number, including area code: (858) 366-6900 N/A (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: ☐    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 ClassTrading SymbolName of Each Exchange on Which Registered Common Stock, par value $0.001 per shareTNDMNASDAQ Global 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 April 30, 2025, we issued a press release reporting our financial results for the quarter ended March 31, 2025. This press release has been furnished as Exhibit 99.1 to this report and is incorporated herein by this reference.

The information under this Item 2.02 and Exhibit 99.1 hereto is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise subject to the liabilities of that section, nor shall they be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits. (d)     Exhibits.

Number Description

99.1Press release of Tandem Diabetes Care, Inc. dated April 30, 2025.

104Cover Page Interactive Data File (embedded within the Inline XBRL document).

2

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.

Tandem Diabetes Care, Inc.

By:/s/ SHANNON M. HANSEN Shannon M. Hansen Executive Vice President, Chief Legal, Privacy & Compliance Officer and Secretary

Date: April 30, 2025 3

2024
Q4

Q4 2024 Earnings

8-K

Feb 26, 2025

0001438133-25-000035

tndm-202502260001438133FALSE00014381332025-02-262025-02-26

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, 2025


Tandem Diabetes Care, Inc. (Exact name of registrant as specified in its charter)


Delaware001-3618920-4327508 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.) 12400 High Bluff Drive92130 San Diego California (Zip Code) (Address of principal executive offices)

Registrant’s telephone number, including area code: (858) 366-6900 N/A (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: ☐    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 ClassTrading SymbolName of Each Exchange on Which Registered Common Stock, par value $0.001 per shareTNDMNASDAQ Global 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, 2025, we issued a press release reporting our financial results for the quarter and year ended December 31, 2024. This press release has been furnished as Exhibit 99.1 to this report and is incorporated herein by this reference.

The information under this Item 2.02 and Exhibit 99.1 hereto is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise subject to the liabilities of that section, nor shall they be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits. (d)     Exhibits.

Number Description

99.1Press release of Tandem Diabetes Care, Inc. dated February 26, 2025.

104Cover Page Interactive Data File (embedded within the Inline XBRL document).

2

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.

Tandem Diabetes Care, Inc.

By:/s/ SHANNON M. HANSEN Shannon M. Hansen Executive Vice President, Chief Legal, Privacy & Compliance Officer and Secretary

Date: February 26, 2025 3

2024
Q3

Q3 2024 Earnings

8-K

Nov 6, 2024

0001438133-24-000200

tndm-202411060001438133FALSE00014381332024-11-062024-11-06

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 6, 2024


Tandem Diabetes Care, Inc. (Exact name of registrant as specified in its charter)


Delaware001-3618920-4327508 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.) 12400 High Bluff Drive92130 San Diego California (Zip Code) (Address of principal executive offices)

Registrant’s telephone number, including area code: (858) 366-6900 N/A (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: ☐    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 ClassTrading SymbolName of Each Exchange on Which Registered Common Stock, par value $0.001 per shareTNDMNASDAQ Global 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 November 6, 2024, we issued a press release reporting our financial results for the quarter ended September 30, 2024. This press release has been furnished as Exhibit 99.1 to this report and is incorporated herein by this reference.

The information under this Item 2.02 and Exhibit 99.1 hereto is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise subject to the liabilities of that section, nor shall they be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits. (d)     Exhibits.

Number Description

99.1Press release of Tandem Diabetes Care, Inc. dated November 6, 2024.

104Cover Page Interactive Data File (embedded within the Inline XBRL document).

2

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.

Tandem Diabetes Care, Inc.

By:/s/ SHANNON M. HANSEN Shannon M. Hansen Executive Vice President, Chief Legal, Privacy & Compliance Officer and Secretary

Date: November 6, 2024 3

2024
Q2

Q2 2024 Earnings

8-K

Aug 1, 2024

0001438133-24-000176

tndm-202408010001438133FALSE00014381332024-08-012024-08-01

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): August 1, 2024


Tandem Diabetes Care, Inc. (Exact name of registrant as specified in its charter)


Delaware001-3618920-4327508 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.) 12400 High Bluff Drive92130 San Diego California (Zip Code) (Address of principal executive offices)

Registrant’s telephone number, including area code: (858) 366-6900 N/A (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: ☐    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 ClassTrading SymbolName of Each Exchange on Which Registered Common Stock, par value $0.001 per shareTNDMNASDAQ Global 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 August 1, 2024, we issued a press release reporting our financial results for the quarter ended June 30, 2024. This press release has been furnished as Exhibit 99.1 to this report and is incorporated herein by this reference.

The information under this Item 2.02 and Exhibit 99.1 hereto is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise subject to the liabilities of that section, nor shall they be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits. (d)     Exhibits.

Number Description

99.1Press release of Tandem Diabetes Care, Inc. dated August 1, 2024.

104Cover Page Interactive Data File (embedded within the Inline XBRL document).

2

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.

Tandem Diabetes Care, Inc.

By:/s/ SHANNON M. HANSEN Shannon M. Hansen Executive Vice President, Chief Legal, Privacy & Compliance Officer and Secretary

Date: August 1, 2024 3

2024
Q1

Q1 2024 Earnings

8-K

May 2, 2024

0001438133-24-000085

tndm-202405020001438133FALSE00014381332024-05-022024-05-02

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): May 2, 2024


Tandem Diabetes Care, Inc. (Exact name of registrant as specified in its charter)


Delaware001-3618920-4327508 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.) 12400 High Bluff Drive92130 San Diego California (Zip Code) (Address of principal executive offices)

Registrant’s telephone number, including area code: (858) 366-6900 N/A (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: ☐    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 ClassTrading SymbolName of Each Exchange on Which Registered Common Stock, par value $0.001 per shareTNDMNASDAQ Global 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 May 2, 2024, we issued a press release reporting our financial results for the quarter ended March 31, 2024. This press release has been furnished as Exhibit 99.1 to this report and is incorporated herein by this reference.

The information under this Item 2.02 and Exhibit 99.1 hereto is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise subject to the liabilities of that section, nor shall they be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits. (d)     Exhibits.

Number Description

99.1Press release of Tandem Diabetes Care, Inc. dated May 2, 2024.

104Cover Page Interactive Data File (embedded within the Inline XBRL document).

2

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.

Tandem Diabetes Care, Inc.

By:/s/ SHANNON M. HANSEN Shannon M. Hansen Chief Legal, Privacy & Compliance Officer; Secretary

Date: May 2, 2024 3

2023
Q4

Q4 2023 Earnings

8-K

Feb 21, 2024

0001438133-24-000026

tndm-202402210001438133FALSE00014381332024-02-212024-02-21

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 21, 2024


Tandem Diabetes Care, Inc. (Exact name of registrant as specified in its charter)


Delaware001-3618920-4327508 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.) 12400 High Bluff Drive92130 San Diego California (Zip Code) (Address of principal executive offices)

Registrant’s telephone number, including area code: (858) 366-6900 N/A (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: ☐    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 ClassTrading SymbolName of Each Exchange on Which Registered Common Stock, par value $0.001 per shareTNDMNASDAQ Global 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 21, 2024, we issued a press release reporting our financial results for the quarter and year ended December 31, 2023. This press release has been furnished as Exhibit 99.1 to this report and is incorporated herein by this reference.

The information under this Item 2.02 and Exhibit 99.1 hereto is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise subject to the liabilities of that section, nor shall they be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits. (d)     Exhibits.

Number Description

99.1Press release of Tandem Diabetes Care, Inc. dated February 21, 2024.

104Cover Page Interactive Data File (embedded within the Inline XBRL document).

2

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.

Tandem Diabetes Care, Inc.

By:/s/ SHANNON M. HANSEN Shannon M. Hansen Chief Legal, Privacy & Compliance Officer; Secretary

Date: February 21, 2024 3

2023
Q3

Q3 2023 Earnings

8-K

Nov 1, 2023

0001438133-23-000206

tndm-202311010001438133FALSE00014381332023-11-012023-11-01

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 1, 2023


Tandem Diabetes Care, Inc. (Exact name of registrant as specified in its charter)


Delaware001-3618920-4327508 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.) 12400 High Bluff Drive92130 San Diego California (Zip Code) (Address of principal executive offices)

Registrant’s telephone number, including area code: (858) 366-6900 N/A (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: ☐    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 ClassTrading SymbolName of Each Exchange on Which Registered Common Stock, par value $0.001 per shareTNDMNASDAQ Global 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 November 1, 2023, we issued a press release reporting our financial results for the quarter ended September 30, 2023. This press release has been furnished as Exhibit 99.1 to this report and is incorporated herein by this reference.

The information under this Item 2.02 and Exhibit 99.1 hereto is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise subject to the liabilities of that section, nor shall they be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits. (d)     Exhibits.

Number Description

99.1Press release of Tandem Diabetes Care, Inc. dated November 1, 2023.

104Cover Page Interactive Data File (embedded within the Inline XBRL document).

2

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.

Tandem Diabetes Care, Inc.

By:/s/ SHANNON M. HANSEN Shannon M. Hansen Chief Legal, Privacy & Compliance Officer; Secretary

Date: November 1, 2023 3

2023
Q2

Q2 2023 Earnings

8-K

Aug 3, 2023

0001438133-23-000152

tndm-202308030001438133FALSE00014381332023-08-032023-08-03

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): August 3, 2023


Tandem Diabetes Care, Inc. (Exact name of registrant as specified in its charter)


Delaware001-3618920-4327508 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.) 12400 High Bluff Drive92130 San Diego California (Zip Code) (Address of principal executive offices)

Registrant’s telephone number, including area code: (858) 366-6900 N/A (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: ☐    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 ClassTrading SymbolName of Each Exchange on Which Registered Common Stock, par value $0.001 per shareTNDMNASDAQ Global 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 August 3, 2023, we issued a press release reporting our financial results for the quarter ended June 30, 2023. This press release has been furnished as Exhibit 99.1 to this report and is incorporated herein by this reference.

The information under this Item 2.02 and Exhibit 99.1 hereto is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise subject to the liabilities of that section, nor shall they be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits. (d)     Exhibits.

Number Description

99.1Press release of Tandem Diabetes Care, Inc. dated August 3, 2023.

104Cover Page Interactive Data File (embedded within the Inline XBRL document).

2

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.

Tandem Diabetes Care, Inc.

By:/s/ SHANNON M. HANSEN Shannon M. Hansen Senior Vice President, General Counsel, Corporate Secretary & Chief Compliance Officer

Date: August 3, 2023 3

2023
Q1

Q1 2023 Earnings

8-K

May 3, 2023

0001438133-23-000066

tndm-202305030001438133FALSE00014381332023-05-032023-05-03

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): May 3, 2023


Tandem Diabetes Care, Inc. (Exact name of registrant as specified in its charter)


Delaware001-3618920-4327508 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.) 12400 High Bluff Drive92130 San Diego California (Zip Code) (Address of principal executive offices)

Registrant’s telephone number, including area code: (858) 366-6900 N/A (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: ☐    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 ClassTrading SymbolName of Each Exchange on Which Registered Common Stock, par value $0.001 per shareTNDMNASDAQ Global 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 May 3, 2023, we issued a press release reporting our financial results for the quarter ended March 31, 2023. This press release has been furnished as Exhibit 99.1 to this report and is incorporated herein by this reference.

The information under this Item 2.02 and Exhibit 99.1 hereto is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise subject to the liabilities of that section, nor shall they be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits. (d)     Exhibits.

Number Description

99.1Press release of Tandem Diabetes Care, Inc. dated May 3, 2023.

104Cover Page Interactive Data File (embedded within the Inline XBRL document).

2

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.

Tandem Diabetes Care, Inc.

By:/s/ SHANNON M. HANSEN Shannon M. Hansen Senior Vice President, General Counsel, Corporate Secretary & Chief Compliance Officer

Date: May 3, 2023 3

2022
Q4

Q4 2022 Earnings

8-K

Feb 22, 2023

0001438133-23-000032

tndm-202302170001438133FALSE00014381332023-02-172023-02-17

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 17, 2023


Tandem Diabetes Care, Inc. (Exact name of registrant as specified in its charter)


Delaware001-3618920-4327508 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.) 11075 Roselle Street92121 San Diego California (Zip Code) (Address of principal executive offices)

Registrant’s telephone number, including area code: (858) 366-6900 N/A (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: ☐    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 ClassTrading SymbolName of Each Exchange on Which Registered Common Stock, par value $0.001 per shareTNDMNASDAQ Global 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 22, 2023, we issued a press release reporting our financial results for the quarter and year ended December 31, 2022. This press release has been furnished as Exhibit 99.1 to this report and is incorporated herein by this reference.

The information under this Item 2.02 and Exhibit 99.1 hereto is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise subject to the liabilities of that section, nor shall they be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On February 22, 2023, the Company issued a press release announcing that Rebecca Robertson will succeed Kim D. Blickenstaff as Chair of the Board of Directors (the “Board”), effective March 1, 2023. Mr. Blickenstaff will continue as a member of the Board.

This press release has been furnished as Exhibit 99.2 to this report and is incorporated herein by this reference. This press release is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act or the Exchange Act, except as expressly set forth by specific reference in such filing.

Appointment of Chair of the Board

On February 22, 2023, the following appointments were approved by the Board, effective March 1, 2023:

•Mr. Blickenstaff will transition from the role of Chair of the Board to a member of the Board, where he has served as one of the Company’s directors since September 2007. Mr. Blickenstaff served as Chair since March 2020, and Executive Chairman from March 2019 - March 2020. Mr. Blickenstaff was the Company’s President and Chief Executive Officer from September 2007 to February 2019,

•Ms. Robertson will transition to the role of Chair. Ms. Robertson has served as a member of the Board since January 2019.

Ms. Robertson, age 62, has extensive experience helping medical device companies scale in her roles as an engineer, entrepreneur, corporate executive and board member. She is a founder and General Partner at Versant Ventures where she has specialized in investing in the areas of medical devices and diagnostics since 1999. In addition, through Longridge Business Advisors, she has provided business advisory services and board services since April 2017. Prior to V

2022
Q4

Q4 2022 Earnings

8-K

Jan 10, 2023

0001438133-23-000005

tndm-202301100001438133FALSE00014381332023-01-102023-01-10

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 10, 2023


Tandem Diabetes Care, Inc. (Exact name of registrant as specified in its charter)


Delaware001-3618920-4327508 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.) 11075 Roselle Street92121 San Diego California (Zip Code) (Address of principal executive offices)

Registrant’s telephone number, including area code: (858) 366-6900 N/A (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: ☐    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 ClassTrading SymbolName of Each Exchange on Which Registered Common Stock, par value $0.001 per shareTNDMNasdaq Global 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 January 10, 2023, the Company issued a press release announcing its unaudited, preliminary financial results for the quarter and full year ended December 31, 2022, as well as its preliminary financial guidance for the full year ending December 31, 2023. A copy of the press release is attached as Exhibit 99.1 to this Current Report on Form 8-K.

The 2022 unaudited financial results contained in the press release are preliminary and subject to adjustment. The final, audited financial results will be included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2022 to be filed with the Securities and Exchange Commission.

The information provided under this Item 2.02, including Exhibit 99.1 hereto, is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise subject to the liabilities of that section, nor shall they be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits. (d) Exhibits.

Number  Description 99.1Press release of Tandem Diabetes Care, Inc. dated January 10, 2023

104Cover Page Interactive Data File (embedded within the Inline XBRL document).

2

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.

Tandem Diabetes Care, Inc.

By:/s/ Leigh A. Vosseller

Leigh A. Vosseller Executive Vice President, Chief Financial Officer and Treasurer

Date: January 9, 2023 3

2022
Q3

Q3 2022 Earnings

8-K

Nov 2, 2022

0001438133-22-000220

tndm-202211020001438133FALSE00014381332022-11-022022-11-02

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): November 2, 2022


Tandem Diabetes Care, Inc. (Exact name of registrant as specified in its charter)


Delaware001-3618920-4327508 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.) 11075 Roselle Street92121 San Diego California (Zip Code) (Address of principal executive offices)

Registrant’s telephone number, including area code: (858) 366-6900 N/A (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: ☐    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 ClassTrading SymbolName of Each Exchange on Which Registered Common Stock, par value $0.001 per shareTNDMNASDAQ Global 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 November 2, 2022, we issued a press release reporting our financial results for the quarter ended September 30, 2022. This press release has been furnished as Exhibit 99.1 to this report and is incorporated herein by this reference.

The information under this Item 2.02 and Exhibit 99.1 hereto is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise subject to the liabilities of that section, nor shall they be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits. (d)     Exhibits.

Number Description

99.1Press release of Tandem Diabetes Care, Inc. dated November 2, 2022.

104Cover Page Interactive Data File (embedded within the Inline XBRL document).

2

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.

Tandem Diabetes Care, Inc.

By:/s/ SHANNON M. HANSEN Shannon M. Hansen Senior Vice President, General Counsel, Corporate Secretary & Chief Compliance Officer

Date: November 2, 2022 3

2022
Q2

Q2 2022 Earnings

8-K

Aug 3, 2022

0001438133-22-000180

tndm-202208030001438133FALSE00014381332022-08-032022-08-03

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): August 3, 2022


Tandem Diabetes Care, Inc. (Exact name of registrant as specified in its charter)


Delaware001-3618920-4327508 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.) 11075 Roselle Street92121 San Diego California (Zip Code) (Address of principal executive offices)

Registrant’s telephone number, including area code: (858) 366-6900 N/A (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: ☐    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 ClassTrading SymbolName of Each Exchange on Which Registered Common Stock, par value $0.001 per shareTNDMNASDAQ Global 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 August 3, 2022, we issued a press release reporting our financial results for the quarter ended June 30, 2022. This press release has been furnished as Exhibit 99.1 to this report and is incorporated herein by this reference.

The information under this Item 2.02 and Exhibit 99.1 hereto is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise subject to the liabilities of that section, nor shall they be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits. (d)     Exhibits.

Number Description

99.1Press release of Tandem Diabetes Care, Inc. dated August 3, 2022.

104Cover Page Interactive Data File (embedded within the Inline XBRL document).

2

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.

Tandem Diabetes Care, Inc.

By:/s/ SHANNON M. HANSEN Shannon M. Hansen Senior Vice President, General Counsel, Corporate Secretary & Chief Compliance Officer

Date: August 3, 2022 3

2022
Q1

Q1 2022 Earnings

8-K

May 4, 2022

0001438133-22-000059

tndm-202205040001438133FALSE00014381332022-05-042022-05-04

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): May 4, 2022


Tandem Diabetes Care, Inc. (Exact name of registrant as specified in its charter)


Delaware001-3618920-4327508 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.) 11075 Roselle Street92121 San Diego California (Zip Code) (Address of principal executive offices)

Registrant’s telephone number, including area code: (858) 366-6900 N/A (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: ☐    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 ClassTrading SymbolName of Each Exchange on Which Registered Common Stock, par value $0.001 per shareTNDMNASDAQ Global 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 May 4, 2022, we issued a press release reporting our financial results for the quarter ended March 31, 2022. This press release has been furnished as Exhibit 99.1 to this report and is incorporated herein by this reference.

The information under this Item 2.02 and Exhibit 99.1 hereto is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise subject to the liabilities of that section, nor shall they be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits. (d)     Exhibits.

Number Description

99.1Press release of Tandem Diabetes Care, Inc. dated May 4, 2022.

104Cover Page Interactive Data File (embedded within the Inline XBRL document).

2

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.

Tandem Diabetes Care, Inc.

By:/s/ SHANNON M. HANSEN Shannon M. Hansen Senior Vice President & General Counsel

Date: May 4, 2022 3

2021
Q4

Q4 2021 Earnings

8-K

Feb 22, 2022

0001438133-22-000020

tndm-202202030001438133FALSE00014381332022-02-032022-02-03

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 3, 2022


Tandem Diabetes Care, Inc. (Exact name of registrant as specified in its charter)


Delaware001-3618920-4327508 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.) 11075 Roselle Street92121 San Diego California (Zip Code) (Address of principal executive offices)

Registrant’s telephone number, including area code: (858) 366-6900 N/A (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: ☐    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 ClassTrading SymbolName of Each Exchange on Which Registered Common Stock, par value $0.001 per shareTNDMNASDAQ Global 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 22, 2022, we issued a press release reporting our financial results for the quarter and year ended December 31, 2021. This press release has been furnished as Exhibit 99.1 to this report and is incorporated herein by this reference.

The information under this Item 2.02 and Exhibit 99.1 hereto is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise subject to the liabilities of that section, nor shall they be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

(c) Appointment of Officer

On February 3, 2022, the Board of Directors appointed David B. Berger, age 52, to serve as the Company’s Executive Vice President, Chief Operating Officer and Assistant Secretary. Mr. Berger previously served as our Chief Business Operations and Compliance Officer since November 2020, as our Executive Vice President, Chief Legal and Compliance Officer since April 2019, and as General Counsel since August 2013. From January 2008 until August 2013, Mr. Berger was employed at Senomyx, Inc., a taste science company, where he most recently served as Senior Vice President and General Counsel. From April 2003 until October 2007, Mr. Berger was responsible for all commercial aspects of legal affairs at Biosite Incorporated, a provider of medical diagnostic products, most recently serving as Vice President, Legal Affairs. Previously, Mr. Berger was an attorney at Cooley Godward LLP and Amylin Pharmaceuticals, Inc. Mr. Berger holds a B.A. in Economics from the University of California, Berkeley and a J.D. from Stanford Law School.

No Arrangements or Understandings

There are no arrangements or understandings pursuant to which Mr. Berger was appointed to his positions as set forth above.

Family Relationships

There are no family relationships between Mr. Berger and the directors or executive officers of the Company.

No Related Party Transactions

Except as described or referenced herein, or other customary and ordinary benefits offered to our employees, Mr. Berger has not entered into any transactions (i) with the Company, (ii) with any of the Company’s directors or executive officers, (iii) with any security holder who is known to the Company to own of record or beneficially more than five percent (5.0%) of any class of the Company’s voting securities or (iv) with any member of the immediate fam

2021
Q3

Q3 2021 Earnings

8-K

Nov 3, 2021

0001438133-21-000194

tndm-202111030001438133FALSE00014381332021-11-032021-11-03

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 3, 2021


Tandem Diabetes Care, Inc. (Exact name of registrant as specified in its charter)


Delaware001-3618920-4327508 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.) 11075 Roselle Street92121 San Diego California (Zip Code) (Address of principal executive offices)

Registrant’s telephone number, including area code: (858) 366-6900 N/A (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: ☐    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 ClassTrading SymbolName of Each Exchange on Which Registered Common Stock, par value $0.001 per shareTNDMNasdaq Global 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 November 3, 2021, we issued a press release reporting our financial results for the quarter ended September 30, 2021. This press release has been furnished as Exhibit 99.1 to this report and is incorporated herein by this reference.

The information under this Item 2.02 and Exhibit 99.1 hereto is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise subject to the liabilities of that section, nor shall they be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits.

(d)     Exhibits.

Number Description

99.1Press release of Tandem Diabetes Care, Inc. dated November 3, 2021.

104Cover Page Interactive Data File (embedded within the Inline XBRL document).

2

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.

Tandem Diabetes Care, Inc.

By:/s/ David B. Berger David B. Berger Executive Vice President, Chief Business Operations & Compliance Officer

Date: November 3, 2021 3

2021
Q2

Q2 2021 Earnings

8-K

Aug 4, 2021

0001438133-21-000119

tndm-202108040001438133FALSE00014381332021-08-042021-08-04

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): August 4, 2021


Tandem Diabetes Care, Inc. (Exact name of registrant as specified in its charter)


Delaware001-3618920-4327508 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.) 11075 Roselle Street92121 San Diego California (Zip Code) (Address of principal executive offices)

Registrant’s telephone number, including area code: (858) 366-6900 N/A (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: ☐    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 ClassTrading SymbolName of Each Exchange on Which Registered Common Stock, par value $0.001 per shareTNDMNasdaq Global 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 August 4, 2021, we issued a press release reporting our financial results for the quarter ended June 30, 2021. This press release has been furnished as Exhibit 99.1 to this report and is incorporated herein by this reference.

The information under this Item 2.02 and Exhibit 99.1 hereto is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise subject to the liabilities of that section, nor shall they be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits.

(d)     Exhibits.

Number Description

99.1Press release of Tandem Diabetes Care, Inc. dated August 4, 2021.

104Cover Page Interactive Data File (embedded within the Inline XBRL document).

2

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.

Tandem Diabetes Care, Inc.

By:/s/ David B. Berger David B. Berger Executive Vice President, Chief Business Operations & Compliance Officer

Date: August 4, 2021 3

About Tandem Diabetes Care Inc. (TNDM) Earnings

This page provides Tandem Diabetes Care Inc. (TNDM) earnings call transcripts from SEC 8-K filings along with AI-powered predictions for post-earnings price movements. Our machine learning models analyze historical earnings data, pre-earnings price patterns, volume changes, and volatility to predict 1-day, 5-day, and 20-day returns after each earnings release.

Earnings transcripts are sourced directly from SEC EDGAR filings. Predictions are generated using gradient boosting models trained on TNDM's historical earnings reactions. All predicted returns are shown as percentages, and predicted prices are calculated from the closing price at the time of prediction. Past performance does not guarantee future results.

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