STOCK TITAN

Shareholders back charter changes and equity plan at Tandem Diabetes (NASDAQ: TNDM)

Filing Impact
(Moderate)
Filing Sentiment
(Neutral)
Form Type
8-K

Rhea-AI Filing Summary

Tandem Diabetes Care, Inc. reported results of its 2026 annual stockholder meeting and related governance changes. Stockholders approved amendments to the Amended and Restated Certificate of Incorporation to allow removal of directors with or without cause and to limit officer liability to the maximum extent permitted by Delaware law.

They also approved an amendment to the 2023 Long-Term Incentive Plan increasing the shares of common stock authorized for issuance under the plan by 3,260,000 shares. All nine director nominees were elected, executive compensation was approved on a non-binding advisory basis, and Ernst & Young LLP was ratified as independent registered public accounting firm for the fiscal year ending December 31, 2026.

There were 68,504,233 shares of common stock outstanding on the March 23, 2026 record date, and 57,964,375 shares were present virtually or by proxy at the meeting, reflecting strong stockholder participation in the governance and compensation decisions.

Positive

  • None.

Negative

  • None.
Item 3.03 Material Modification to Rights of Security Holders Securities
A change was made that materially affects the rights of existing shareholders (e.g., dividend rights, voting rights).
Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers Governance
Key personnel changes including departures, elections, or appointments of directors and executive officers.
Item 5.07 Submission of Matters to a Vote of Security Holders Governance
Results of a shareholder vote on proposals at an annual or special meeting.
Item 9.01 Financial Statements and Exhibits Exhibits
Financial statements, pro forma financial information, and exhibit attachments filed with this report.
LTIP share increase 3,260,000 shares Additional common shares authorized under 2023 Long-Term Incentive Plan
Shares outstanding 68,504,233 shares Common stock outstanding on March 23, 2026 record date
Shares present at meeting 57,964,375 shares Common stock present virtually or by proxy at 2026 annual meeting
Votes for director removal amendment 57,818,029 shares Proposal 4 to allow director removal with or without cause
Votes for officer exculpation amendment 45,926,405 shares Proposal 5 limiting officer liability and updating charter
Votes for auditor ratification 57,493,084 shares Ratification of Ernst & Young LLP for fiscal year ending December 31, 2026
Say-on-pay support 53,460,747 shares for Non-binding advisory vote on executive compensation
Amended and Restated Certificate of Incorporation regulatory
"approved amendments to the Company’s Amended and Restated Certificate of Incorporation to: (i) provide for removal of directors"
A company’s amended and restated certificate of incorporation is an updated version of its foundational legal charter that replaces the older document and folds in all changes into one clear copy; it spells out corporate structure, classes of stock, shareholder rights and key governance rules. Investors care because it can change who controls the company, how votes are counted, what claims shareholders have on assets or dividends, and can introduce or remove protections against takeovers—like updating a house title after a major renovation to show who owns what and under what rules.
Section 141(k) of the Delaware General Corporation Law regulatory
"provide for removal of directors with or without cause, as required by Section 141(k) of the Delaware General Corporation Law"
Section 102(b)(7) of the DGCL regulatory
"limit the liability of officers of the Company to the maximum extent permitted by law as permitted pursuant to Section 102(b)(7) of the DGCL"
non-binding, advisory basis financial
"To approve, on a non-binding, advisory basis, the compensation of the Company’s named executive officers"
broker non-votes financial
"For | Against | Abstain | Broker Non-Votes 53,460,747 | 1,481,027 | 43,520 | 2,979,081"
Broker non-votes occur when a brokerage firm is unable to vote on a shareholder’s behalf during a company election or decision because the shareholder has not given specific voting instructions, and the broker is not allowed or chooses not to vote on certain matters. They are important because they can affect the outcome of votes, especially when the results are close, by effectively reducing the total number of votes cast.
independent registered public accounting firm financial
"To ratify the appointment of Ernst & Young LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026"
An independent registered public accounting firm is an outside accounting company officially registered with the government regulator to examine and report on a public company's financial records and controls. Investors treat its reports like an impartial inspector’s certificate — they add credibility to financial statements, help spot errors or misleading claims, and reduce the risk that shareholders are relying on unchecked or biased numbers.
0001438133FALSE00014381332026-05-202026-05-20


 
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 20, 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: (858366-6900
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 3.03 Material Modification to Rights of Security Holders.

On May 20, 2026, at the 2026 Annual Meeting of Stockholders (the Annual Meeting) of Tandem Diabetes Care, Inc. (the Company), upon recommendation of the Company’s Board of Directors (the Board), the Company’s stockholders approved amendments to the Company’s Amended and Restated Certificate of Incorporation to: (i) provide for removal of directors with or without cause, as required by Section 141(k) of the Delaware General Corporation Law (DGCL); and (ii) among other things, (x) limit the liability of officers of the Company to the maximum extent permitted by law as permitted pursuant to Section 102(b)(7) of the DGCL and (y) implement certain other changes based on updates to the DGCL (together, the Charter Amendments). The descriptions of the Charter Amendments are set forth in the Company’s Definitive Proxy Statement on Schedule 14A, filed with the U.S. Securities and Exchange Commission on April 7, 2026 (the Proxy Statement), in the sections titled “Proposal 4: Section 141(k) Amendment” and “Proposal 5: Officer Exculpation Amendment” and are incorporated by reference herein.

Following stockholder approval at the Annual Meeting, on May 21, 2026, the Company filed an Amended and Restated Certificate of Incorporation (the Amended and Restated Charter) integrating the Charter Amendments with the Secretary of State of the State of Delaware.

The description of the Charter Amendments contained herein and in the Proxy Statement are qualified in their entirety by reference to the Amended and Restated Charter, a copy of which is filed as Exhibit 3.1 hereto and incorporated herein by reference.

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

At the Annual Meeting, the Company’s stockholders also approved the Company’s 2023 Long-Term Incentive Plan, as amended, to, among other things, increase the number of shares of the Company’s common stock (Common Stock) authorized for issuance under the plan by 3,260,000 shares (as so amended, the Amended Plan). The Amended Plan was previously approved by the Board, subject to stockholder approval at the Annual Meeting. A description of the Amended Plan is set forth in the Proxy Statement in the section titled “Proposal 3: 2023 Long-Term Incentive Plan.”

The description of the Amended Plan contained herein and in the Proxy Statement are qualified in their entirety by reference to the Amended Plan, a copy of which is attached hereto as Exhibit 10.1 and incorporated herein by reference.

Item 5.07 Submission of Matters to a Vote of Security Holders.

On May 20, 2026, the Company held the Annual Meeting. There were 68,504,233 shares of Common Stock outstanding on March 23, 2026, the record date for the Annual Meeting, and 57,964,375 shares of Common Stock were present virtually or represented by proxy at the Annual Meeting.

The following tables set forth the final results of the voting for the matters voted upon at the Annual Meeting. These matters are described in more detail in the Proxy Statement.

Proposal 1: To elect nine directors for a one-year term expiring at the 2027 annual meeting of stockholders. The stockholders elected nine directors by the following votes:

Name of DirectorForAgainstAbstainBroker Non-Votes
Rebecca Robertson54,160,282799,31025,7022,979,081
Sandra Beaver54,607,191348,05030,0532,979,081
Myoungil Cha54,456,358502,29026,6462,979,081
Peyton Howell54,179,597773,22032,4772,979,081
Joao Malagueira54,454,159499,74731,3882,979,081
Kathleen McGroddy-Goetz54,312,399641,72631,1692,979,081
John Sheridan54,432,569536,16416,5612,979,081
2


Rajwant Sodhi54,328,131621,29535,8682,979,081
Christopher Twomey47,921,6557,034,20829,4312,979,081

Proposal 2: To approve, on a non-binding, advisory basis, the compensation of the Company’s named executive officers as described in the Proxy Statement. This proposal was approved and the voting results were as follows:
ForAgainstAbstainBroker Non-Votes
53,460,7471,481,02743,5202,979,081

Proposal 3: To approve the Amended Plan to, among other things, increase the number of shares authorized for issuance under the plan. This proposal was approved and the voting results were as follows:

ForAgainstAbstainBroker Non-Votes
53,846,6961,108,52930,0692,979,081

Proposal 4: To approve an amendment to the Company’s Amended and Restated Certificate of Incorporation to provide for removal of directors with or without cause, as required by Section 141(k) of the DGCL. This proposal was approved and the voting results were as follows:

ForAgainstAbstainBroker Non-Votes
57,818,029126,02520,3210

Proposal 5: To approve an amendment to the Company’s Amended and Restated Certificate of Incorporation to, among other things, (i) limit the liability of officers of the Company to the maximum extent permitted by law as permitted pursuant to Section 102(b)(7) of the DGCL, and (ii) implement certain other changes based on updates to the DGCL. This proposal was approved and the voting results were as follows:

ForAgainstAbstainBroker Non-Votes
45,926,4059,043,83115,0582,979,081

Proposal 6: To ratify the appointment of Ernst & Young LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026. This proposal was approved and the voting results were as follows:

ForAgainstAbstainBroker Non-Votes
57,493,084454,73516,5560

Item 9.01 Financial Statements and Exhibits

(d) Exhibits
 Number
Description
3.1
Amended and Restated Certificate of Incorporation (as amended and currently in effect).
10.1
Tandem Diabetes Care, Inc. 2023 Long-Term Incentive Plan, as amended.
104Cover Page Interactive Data File (embedded within the Inline XBRL document).
3



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: May 21, 2026
4

FAQ

What governance changes did Tandem Diabetes Care (TNDM) stockholders approve at the 2026 annual meeting?

Stockholders approved charter amendments allowing removal of directors with or without cause and limiting officer liability to the maximum extent permitted by Delaware law. These changes align the company’s charter with updated provisions of the Delaware General Corporation Law and clarify director and officer protections.

How did Tandem Diabetes Care (TNDM) change its 2023 Long-Term Incentive Plan?

Stockholders approved an amendment to the 2023 Long-Term Incentive Plan increasing shares of common stock authorized for issuance under the plan by 3,260,000 shares. The Board had previously approved the amendment, subject to stockholder approval, to support ongoing equity-based compensation programs.

Were Tandem Diabetes Care (TNDM) director nominees elected at the 2026 annual meeting?

Yes, nine directors were elected to one-year terms expiring at the 2027 annual meeting. Each nominee received a majority of votes cast, with broker non-votes reported separately, confirming continued stockholder support for the company’s current board composition and leadership structure.

Did Tandem Diabetes Care (TNDM) stockholders approve executive compensation on a say-on-pay basis?

Yes, stockholders approved, on a non-binding advisory basis, the compensation of the company’s named executive officers. The vote totaled 53,460,747 shares for, 1,481,027 against, and 43,520 abstentions, with 2,979,081 broker non-votes recorded on this advisory compensation proposal.

Who is Tandem Diabetes Care’s (TNDM) independent auditor for fiscal 2026?

Stockholders ratified Ernst & Young LLP as the independent registered public accounting firm for the fiscal year ending December 31, 2026. The ratification vote was 57,493,084 shares for, 454,735 against, and 16,556 abstentions, reflecting broad support for the company’s chosen audit firm.

What was Tandem Diabetes Care’s (TNDM) stockholder participation at the 2026 annual meeting?

There were 68,504,233 shares of common stock outstanding on the March 23, 2026 record date, and 57,964,375 shares were present virtually or represented by proxy. This level of participation provided a strong quorum for voting on directors, compensation, charter amendments, and auditor ratification.

Filing Exhibits & Attachments

5 documents