# Luna Diabetes

> Luna Diabetes (Luna Health Inc.) is a San Diego medical device company building the first automated insulin delivery system designed for the more than 90% of insulin-requiring people who dose with an insulin pen rather than a full-time pump. Its flagship product, Luna, pairs what the company calls the world's smallest insulin patch pump with a fully closed-loop algorithm to automate micro-doses of rapid-acting insulin overnight, when most of the glucose benefit from pump therapy occurs. Founded in 2020 by diabetes-industry veterans John Sjolund, Jon Brilliant and Sean Saint, the company raised a $23.6M Series A in August 2025 and is running a pivotal clinical trial using Time in Range as its primary endpoint.

- **Founded:** 2020
- **Headquarters:** San Diego, California, United States
- **Founders:** John Sjolund (Co-Founder & CEO), Jon Brilliant (Co-Founder), Sean Saint (Co-Founder)
- **Team size:** ~16 employees
- **Products:** Luna (Automated Insulin Delivery System)
- **Notable:** Closed a $23.6M Series A in August 2025 led by Vensana Capital., Launched a pivotal clinical trial in fall 2024 using Time in Range (TIR) as the primary endpoint., Developed what the company describes as the world's smallest insulin patch pump.

## Products & services

- **Luna (Automated Insulin Delivery System)** — An investigational automated insulin delivery system that pairs a small wearable insulin patch pump - described by the company as the world's smallest - with a fully closed-loop dosing algorithm and a continuous glucose monitor. It delivers automated micro-doses of rapid-acting insulin during sleep, targeting the overnight window where the company says over 80% of the glucose improvement from traditional pump-based automated insulin delivery occurs, without requiring users to abandon their daytime insulin pen.

## Achievements

- Closed a $23.6M Series A in August 2025 led by Vensana Capital.
- Launched a pivotal clinical trial in fall 2024 using Time in Range (TIR) as the primary endpoint.
- Developed what the company describes as the world's smallest insulin patch pump.
- Assembled a founding team behind widely used diabetes products including Timesulin, InPen, Companion Medical, Bigfoot Biomedical and Welldoc BlueStar.

## Latest updates

- **2025-08** — Announced the close of a $23.6M Series A financing led by Vensana Capital with participation from Swiss Diabetes Venture Fund, Ascensia Diabetes Care and Winklevoss Capital.
- **2024-10** — Announced the start of its pivotal study to bring automated insulin delivery to insulin pen users, using Time in Range as the primary endpoint.

## Links

- Website: https://lunadiabetes.com
- LinkedIn: https://www.linkedin.com/company/lunadiabetes

---

Profile page: https://yespress.io/luna-diabetes
Published by YesPress — https://yespress.io
Last updated: 2026-06-14