Tandem Diabetes Care (TNDM)Hood River Capital Management LLC exited its position 2.55M shares

2.55M

Prior-quarter shares · no longer reported

Holdings as of

Dec 31, 2025

Filed

Feb 17, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Dec 26, 2025Company filing · Form 8-K · Bylaws or charterChanged its bylaws, charter or fiscal year

What came next

1. Feb 19, 2026Company filing · Form 8-K · ResultsReported its results
2. Feb 23, 2026Company filing · Form 8-K · Material agreement, New debtSigned an important agreement, and took on new debt or obligations (and 2 more items)
3. Mar 3, 2026CongressDisclosed purchase of TNDM — reported range $1,001 - $15,000
4. May 7, 2026Company filing · Form 8-K · ResultsReported its results
5. May 11, 2026Company filing · Form 8-K · Executive changeChanged a top executive or board member“On May 11, 2026, Mark Novara, the Executive Vice President and Chief Commercial Officer of Tandem Diabetes Care, Inc. (the “Company”), was notified that his employment with the Company is being terminated without cause.”
6. May 20, 2026Company filing · Form 8-K · Shareholder rights, Executive changeChanged a top executive or board member, and changed the rights of its shareholders (and 1 more item)“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).”

How to read SEC Form 13F-HR

Form 13F is the quarterly report in which investment managers that oversee $100 million or more list the US-listed stocks and some other securities they held on the last day of the quarter.

Full guide: What is an SEC Form 13F?

What else is on file for Tandem Diabetes Care

For Tandem Diabetes Care, OQRO holds 2 fund holdings reports (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its TNDM page.

How this filing works

• SEC Form 13F

Other disclosures at Tandem Diabetes Care

• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRMay 15, 2026
• SEC Form 13F-HRMay 15, 2026
• House Clerk periodic transaction reportApr 7, 2026
• SEC Form 13F-HROct 28, 2025

Everything OQRO holds on this company is on its TNDM page.