Tandem Diabetes Care Inc SEC filings TNDM
Tandem Diabetes Care Inc has 1,004 filings in SEC EDGAR's recent list, going back to Dec 16, 2016. Its latest annual report, Form ARS, was filed on Apr 8, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 6, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Aug 6, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Oct 29, 2026 | Oct 27, 2026 |
| 144 | Notice of proposed sale | Oct 27, 2026 | — |
| 4 | Insider transaction | Oct 19, 2026 | Oct 15, 2026 |
| 144 | Notice of proposed sale | Sep 17, 2026 | — |
| 4 | Insider transaction | Aug 18, 2026 | Aug 15, 2026 |
| 4 | Insider transaction | Aug 18, 2026 | Aug 15, 2026 |
| 4 | Insider transaction | Aug 18, 2026 | Aug 15, 2026 |
| 4 | Insider transaction | Aug 18, 2026 | Aug 15, 2026 |
| 4 | Insider transaction | Aug 18, 2026 | Aug 15, 2026 |
| 4 | Insider transaction | Aug 18, 2026 | Aug 15, 2026 |
| 4 | Insider transaction | Aug 18, 2026 | Aug 15, 2026 |
| 144 | Notice of proposed sale | Aug 18, 2026 | — |
| 10-Q | Quarterly report | Aug 6, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2026 | Aug 6, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 6, 2026 | — |
| 4 | Insider transaction | Jul 17, 2026 | Jul 15, 2026 |
| 144 | Notice of proposed sale | Jun 17, 2026 | — |
| 4 | Insider transaction | Jun 4, 2026 | Jun 2, 2026 |
| 4 | Insider transaction | Jun 2, 2026 | May 29, 2026 |
| 4 | Insider transaction | Jun 2, 2026 | May 29, 2026 |
| 4 | Insider transaction | Jun 2, 2026 | May 29, 2026 |
| 4 | Insider transaction | Jun 2, 2026 | May 29, 2026 |
| 4 | Insider transaction | Jun 2, 2026 | May 29, 2026 |
| 4 | Insider transaction | Jun 2, 2026 | May 29, 2026 |
| 4 | Insider transaction | Jun 2, 2026 | May 29, 2026 |
| SD | Specialized disclosure (conflict minerals) | May 28, 2026 | — |
| S-8 | Employee stock plan registration | May 27, 2026 | — |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 8-K |
Current report
Change to shareholder rights, Officer or director change, Shareholder vote results
|
May 21, 2026 | May 20, 2026 |
| 144 | Notice of proposed sale | May 19, 2026 | — |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 8-K |
Current report
Officer or director change
|
May 15, 2026 | May 11, 2026 |
| 10-Q | Quarterly report | May 7, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 7, 2026 | May 7, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | May 5, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 30, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 29, 2026 | — |
| 4 | Insider transaction | Apr 17, 2026 | Apr 15, 2026 |
| ARS | Annual report to shareholders | Apr 8, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Apr 7, 2026 | — |
| DEF 14A | Proxy statement | Apr 7, 2026 | Dec 31, 2025 |
| PRE 14A | Preliminary proxy statement | Mar 27, 2026 | Dec 31, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 27, 2026 | — |
| 4 | Insider transaction | Mar 18, 2026 | Mar 16, 2026 |
| 144 | Notice of proposed sale | Mar 17, 2026 | — |
| 4 | Insider transaction | Mar 9, 2026 | Mar 5, 2026 |
| 144 | Notice of proposed sale | Mar 5, 2026 | — |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale, Other events
|
Feb 27, 2026 | Feb 23, 2026 |
| 4 | Insider transaction | Feb 19, 2026 | Feb 17, 2026 |
| 4 | Insider transaction | Feb 19, 2026 | Feb 17, 2026 |
| 4 | Insider transaction | Feb 19, 2026 | Feb 17, 2026 |
| 4 | Insider transaction | Feb 19, 2026 | Feb 17, 2026 |
| 4 | Insider transaction | Feb 19, 2026 | Feb 17, 2026 |
| 4 | Insider transaction | Feb 19, 2026 | Feb 17, 2026 |
| 4 | Insider transaction | Feb 19, 2026 | Feb 17, 2026 |
| 10-K | Annual report | Feb 19, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 19, 2026 | Feb 19, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| 4 | Insider transaction | Jan 20, 2026 | Jan 15, 2026 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Dec 30, 2025 | Dec 26, 2025 |
| 4 | Insider transaction | Dec 17, 2025 | Dec 15, 2025 |
| 4 | Insider transaction | Dec 17, 2025 | Dec 15, 2025 |
| 4 | Insider transaction | Dec 8, 2025 | Dec 4, 2025 |
| 4 | Insider transaction | Nov 25, 2025 | Nov 7, 2025 |
| 3 | Initial insider ownership | Nov 25, 2025 | Nov 7, 2025 |
| 4 | Insider transaction | Nov 19, 2025 | Nov 17, 2025 |
| 4 | Insider transaction | Nov 19, 2025 | Nov 17, 2025 |
| 4 | Insider transaction | Nov 19, 2025 | Nov 17, 2025 |
| 4 | Insider transaction | Nov 19, 2025 | Nov 17, 2025 |
| 4 | Insider transaction | Nov 19, 2025 | Nov 17, 2025 |
| 4 | Insider transaction | Nov 19, 2025 | Nov 17, 2025 |
| 4 | Insider transaction | Nov 19, 2025 | Nov 17, 2025 |
| 4 | Insider transaction | Nov 19, 2025 | Nov 17, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Nov 13, 2025 | — |
| 8-K |
Current report
Officer or director change
|
Nov 12, 2025 | Nov 7, 2025 |
| 10-Q | Quarterly report | Nov 6, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 6, 2025 | Nov 6, 2025 |
| 4 | Insider transaction | Oct 17, 2025 | Oct 15, 2025 |
| 4 | Insider transaction | Sep 16, 2025 | Sep 15, 2025 |
| 4 | Insider transaction | Sep 16, 2025 | Sep 15, 2025 |
| 4 | Insider transaction | Aug 19, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Aug 19, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Aug 19, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Aug 19, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Aug 19, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Aug 19, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Aug 19, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Aug 11, 2025 | Aug 11, 2025 |
| 4 | Insider transaction | Aug 11, 2025 | Aug 8, 2025 |
| 8-K |
Current report
Other events
|
Aug 7, 2025 | Aug 6, 2025 |
| 10-Q | Quarterly report | Aug 6, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2025 | Aug 6, 2025 |
| 4 | Insider transaction | Jul 17, 2025 | Jul 15, 2025 |
| UPLOAD | Letter from the SEC | Jun 26, 2025 | — |
| CORRESP | Letter to the SEC | Jun 25, 2025 | — |
| 4 | Insider transaction | Jun 18, 2025 | Jun 16, 2025 |
| 4 | Insider transaction | Jun 18, 2025 | Jun 16, 2025 |
| 4 | Insider transaction | Jun 18, 2025 | Jun 16, 2025 |
| 4 | Insider transaction | Jun 18, 2025 | Jun 16, 2025 |
| UPLOAD | Letter from the SEC | Jun 11, 2025 | — |
| 4 | Insider transaction | Jun 5, 2025 | May 30, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | May 30, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | May 30, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | May 30, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | May 30, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | May 30, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | May 30, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | May 30, 2025 |
| 4 | Insider transaction | Jun 4, 2025 | Jun 2, 2025 |
| 4 | Insider transaction | Jun 2, 2025 | May 29, 2025 |
| SD | Specialized disclosure (conflict minerals) | May 29, 2025 | — |
| 8-K |
Current report
Material agreement, Shareholder vote results
|
May 23, 2025 | May 21, 2025 |
| CORRESP | Letter to the SEC | May 23, 2025 | — |
| 4 | Insider transaction | May 23, 2025 | May 21, 2025 |
| 4 | Insider transaction | May 23, 2025 | May 21, 2025 |
| 4 | Insider transaction | May 23, 2025 | May 21, 2025 |
| 4 | Insider transaction | May 23, 2025 | May 21, 2025 |
| 4 | Insider transaction | May 23, 2025 | May 21, 2025 |
| 4 | Insider transaction | May 23, 2025 | May 21, 2025 |
| 4 | Insider transaction | May 23, 2025 | May 21, 2025 |
| 4 | Insider transaction | May 23, 2025 | May 21, 2025 |
| 8-K |
Current report
Other events
|
May 20, 2025 | May 16, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | May 15, 2025 | — |
| UPLOAD | Letter from the SEC | May 13, 2025 | — |
| 8-K |
Current report
Other events
|
May 12, 2025 | May 9, 2025 |
| 10-Q | Quarterly report | Apr 30, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
Apr 30, 2025 | Apr 30, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 29, 2025 | — |
| ARS | Annual report to shareholders | Apr 8, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Apr 8, 2025 | — |
| DEF 14A | Proxy statement | Apr 8, 2025 | Dec 31, 2024 |
| CORRESP | Letter to the SEC | Apr 4, 2025 | — |
| UPLOAD | Letter from the SEC | Mar 25, 2025 | — |
| 4 | Insider transaction | Mar 19, 2025 | Mar 17, 2025 |
| 4 | Insider transaction | Mar 19, 2025 | Mar 17, 2025 |
| 4 | Insider transaction | Mar 11, 2025 | Mar 7, 2025 |
| 4 | Insider transaction | Feb 27, 2025 | Feb 25, 2025 |
| 4 | Insider transaction | Feb 27, 2025 | Feb 25, 2025 |
| 4 | Insider transaction | Feb 27, 2025 | Feb 25, 2025 |
| 4 | Insider transaction | Feb 27, 2025 | Feb 25, 2025 |
| 10-K | Annual report | Feb 26, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Feb 26, 2025 | Feb 26, 2025 |
| 4 | Insider transaction | Feb 20, 2025 | Feb 18, 2025 |
| 4 | Insider transaction | Feb 20, 2025 | Feb 18, 2025 |
| 4 | Insider transaction | Feb 20, 2025 | Feb 18, 2025 |
| 4 | Insider transaction | Feb 20, 2025 | Feb 18, 2025 |
| 4 | Insider transaction | Feb 20, 2025 | Feb 18, 2025 |
| 4 | Insider transaction | Feb 20, 2025 | Feb 18, 2025 |
| 4 | Insider transaction | Dec 18, 2024 | Dec 16, 2024 |
| 4 | Insider transaction | Dec 18, 2024 | Dec 16, 2024 |
| 4 | Insider transaction | Nov 22, 2024 | Nov 20, 2024 |
| 144 | Notice of proposed sale | Nov 21, 2024 | — |
| 144 | Notice of proposed sale | Nov 20, 2024 | — |
| 4 | Insider transaction | Nov 19, 2024 | Nov 15, 2024 |
| 4 | Insider transaction | Nov 19, 2024 | Nov 15, 2024 |
| 4 | Insider transaction | Nov 19, 2024 | Nov 15, 2024 |
| 4 | Insider transaction | Nov 19, 2024 | Nov 15, 2024 |
| 4 | Insider transaction | Nov 19, 2024 | Nov 15, 2024 |
| 4 | Insider transaction | Nov 19, 2024 | Nov 15, 2024 |
| 4 | Insider transaction | Nov 19, 2024 | Nov 15, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 8, 2024 | — |
| 10-Q | Quarterly report | Nov 6, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 6, 2024 | Nov 6, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Oct 18, 2024 | — |
| 4 | Insider transaction | Sep 18, 2024 | Sep 16, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Sep 9, 2024 | — |
| 4 | Insider transaction | Aug 19, 2024 | Aug 15, 2024 |
| 4 | Insider transaction | Aug 19, 2024 | Aug 15, 2024 |
| 4 | Insider transaction | Aug 19, 2024 | Aug 15, 2024 |
| 4 | Insider transaction | Aug 19, 2024 | Aug 15, 2024 |
| 4 | Insider transaction | Aug 19, 2024 | Aug 15, 2024 |
| 4 | Insider transaction | Aug 19, 2024 | Aug 15, 2024 |
| 4 | Insider transaction | Aug 9, 2024 | Aug 7, 2024 |
| 10-Q | Quarterly report | Aug 1, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 1, 2024 | Aug 1, 2024 |
| 4 | Insider transaction | Jul 17, 2024 | Jul 15, 2024 |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Industry
- Surgical & Medical Instruments & Apparatus (SIC 3841)
- Listed as
- TNDM (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- San Diego, CA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1438133
Other Surgical & Medical Instruments & Apparatus companies
- Stryker Corp SYK
- 3M Co MMM
- Boston Scientific Corp BSX
- Becton Dickinson & Co BDX
- Medline Inc. MDLN
- Resmed Inc RMD
- Dexcom Inc DXCM
- Fresenius SE & Co. KGaA FSNUY
All 151 Surgical & Medical Instruments & Apparatus companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.