INSULIN Act of 2026
The source supplies the latest action, but no lifecycle stage.
Latest action (7 Aug 2026): Placed on Senate Legislative Calendar under General Orders. Calendar No. 552.
What this bill does
The INSULIN Act of 2026 (S. 4189) aims to lower out-of-pocket insulin costs and increase market competition and transparency. As reported, the bill would require group health plans and health insurance issuers to cover at least one form of each major insulin type, waive deductibles for these products, and cap patient cost-sharing at $35 per 30-day supply (or, starting in 2028, the lesser of $35 or 25% of the negotiated net price). It would also limit prior authorization requirements for these insulin products, require pharmacy benefit managers and related entities to pass through 100% of insulin-related rebates and fees to health plans within 90 days, and includes provisions—summarized only in title form in the available text—addressing generic and biosimilar insulin competition and programs to help uninsured individuals access affordable insulin, including a pilot program, a GAO study, and a resource hotline.
The bill primarily affects people with diabetes who rely on insulin, along with employer-sponsored and individually purchased health plans, insurers, pharmacy benefit managers, and plan sponsors who would face new coverage, cost-sharing, and rebate-disclosure requirements. Uninsured individuals would be affected by the proposed pilot program and support services, subject to further study and implementation.
The bill was introduced in March 2026 and referred to the Senate Committee on Health, Education, Labor, and Pensions. On August 7, 2026, the committee reported it favorably with an amendment in the nature of a substitute, meaning the original text was replaced with a revised version. It now awaits further action by the full Senate before it could proceed to the House and, ultimately, the President.
Plain-English summary generated by Bill100 AI from the official record. Always verify against the source below.
Timeline
7 Aug 2026
Placed on Senate Legislative Calendar under General Orders. Calendar No. 552.
Common questions
- What does S. 4189 do?
- The INSULIN Act of 2026 (S. 4189) aims to lower out-of-pocket insulin costs and increase market competition and transparency. As reported, the bill would require group health plans and health insurance issuers to cover at least one form of each major insulin type, waive deductibles for these products, and cap patient cost-sharing at $35 per 30-day supply (or, starting in 2028, the lesser of $35 or 25% of the negotiated net price). It would also limit prior authorization requirements for these insulin products, require pharmacy benefit managers and related entities to pass through 100% of insulin-related rebates and fees to health plans within 90 days, and includes provisions—summarized only in title form in the available text—addressing generic and biosimilar insulin competition and programs to help uninsured individuals access affordable insulin, including a pilot program, a GAO study, and a resource hotline. The bill primarily affects people with diabetes who rely on insulin, along with employer-sponsored and individually purchased health plans, insurers, pharmacy benefit managers, and plan sponsors who would face new coverage, cost-sharing, and rebate-disclosure requirements. Uninsured individuals would be affected by the proposed pilot program and support services, subject to further study and implementation. The bill was introduced in March 2026 and referred to the Senate Committee on Health, Education, Labor, and Pensions. On August 7, 2026, the committee reported it favorably with an amendment in the nature of a substitute, meaning the original text was replaced with a revised version. It now awaits further action by the full Senate before it could proceed to the House and, ultimately, the President.
- Has S. 4189 become law?
- The source does not supply a confirmed lifecycle stage for S. 4189. Check the latest action and official source below.
- Who sponsored S. 4189?
- S. 4189 was sponsored by Sen. Shaheen, Jeanne [D-NH] (D-NH), with 28 cosponsors.
- What's the latest action on S. 4189?
- Placed on Senate Legislative Calendar under General Orders. Calendar No. 552. (7 Aug 2026).
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