TickerFacts.

Inspire Medical Systems, Inc. (INSP): Shares Outstanding

Annual figures by period end, from SEC filings.

28.58M
As of 2025-12-31
28.91M
As of 2026-06-30
-0.5%
3-year compound annual growth
+1.1%
5-year compound annual growth
29.74M2017-12-31: 1.27M2018-12-31: 23.40M2019-12-31: 24.11M2020-12-31: 27.07M2021-12-31: 27.42M2022-12-31: 29.01M2023-12-31: 29.56M2024-12-31: 29.74M2025-12-31: 28.58M28.58M
2017-12-31 Shares Outstanding (shares) 2025-12-31
Period endedShares OutstandingChange YoYSource filing
2025-12-3128.58M-3.9%2026-02-13, Balance as of period end
2024-12-3129.74M+0.6%2026-02-13, Balance as of period end
2023-12-3129.56M+1.9%2025-02-10, Balance as of period end
2022-12-3129.01M+5.8%2024-02-09, Balance as of period end
2021-12-3127.42M+1.3%2023-02-10, Balance as of period end
2020-12-3127.07M+12.3%2022-02-15, Balance as of period end
2019-12-3124.11M+3.0%2021-02-24, Balance as of period end
2018-12-3123.40Mn/m2020-02-25, Balance as of period end
2017-12-311.27Mn/a2019-02-26, Balance as of period end