인스파이어 메디컬 시스템즈, Inc.
US ˙ NYSE ˙ US4577301090

SecurityINSP / Inspire Medical Systems, Inc.
InstitutionWasatch Advisors Inc
Latest Disclosed Ownership135,914 shares
Ownership 0.50%
Wasatch Advisors Inc ownership in INSP / Inspire Medical Systems, Inc.

2025-11-12 - Wasatch Advisors Inc has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 135,914 shares of Inspire Medical Systems, Inc. (US:INSP). This represents 0.5 percent ownership of the company. In their previous filing dated 2025-05-13 , Wasatch Advisors Inc had reported owning 1,524,107 shares, indicating a decrease of -91.08 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date
Effective
Date
Form Prev
Shares
Latest
Shares
ΔShares
(Percent)
Ownership
(Percent)
ΔOwnership
(Percent)
2025-11-12 2025-11-12 13G/A 1,524,107 135,914 -91.08 0.50 -90.20
2025-05-13 2025-05-13 13G 1,524,107 5.10

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-04-21 2026-03-31 13F INSPIRE MED SYS COM 457730109 138,603 22,535 19.42 7,149 -33.21 0.0475
2026-02-12 2025-12-31 13F INSPIRE MED SYS COM 457730109 116,068 -19,846 -14.60 10,705 6.15 0.0636
2025-11-14 2025-09-30 13F INSPIRE MED SYS COM 457730109 135,914 -1,498,481 -91.68 10,085 -95.25 0.0543
2025-08-14 2025-06-30 13F INSPIRE MED SYS COM 457730109 1,634,395 110,288 7.24 212,095 -12.63 1.1104
2025-05-15 2025-03-31 13F INSPIRE MED SYS COM 457730109 1,524,107 202,342 15.31 242,760 -0.93 1.3544
2025-02-13 2024-12-31 13F INSPIRE MED SYS COM 457730109 1,321,765 -1,705 -0.13 245,029 -12.28 1.2130
2024-11-14 2024-09-30 13F INSPIRE MED SYS COM 457730109 1,323,470 20,481 1.57 279,318 60.18 1.3690
2024-08-14 2024-06-30 13F INSPIRE MED SYS COM 457730109 1,302,989 200,122 18.15 174,379 -26.39 0.9327
2024-04-18 2024-03-31 13F INSPIRE MED SYS COM 457730109 1,102,867 5,522 0.50 236,885 6.12 1.2388
2024-02-14 2023-12-31 13F INSPIRE MED SYS COM 457730109 1,097,345 119,738 12.25 223,233 15.07 1.2297
2023-11-14 2023-09-30 13F INSPIRE MED SYS COM 457730109 977,607 481,320 96.98 193,996 20.41 1.2258
2023-08-08 2023-06-30 13F INSPIRE MED SYS COM 457730109 496,287 -87,319 -14.96 161,115 17.94 0.9754
2023-05-12 2023-03-31 13F INSPIRE MED SYS COM 457730109 583,606 35,478 6.47 136,605 -1.06 0.8504
2023-02-14 2022-12-31 13F INSPIRE MED SYS COM 457730109 548,128 -57,270 -9.46 138,062 28.57 0.9293
2022-11-14 2022-09-30 13F INSPIRE MED SYS COM 457730109 605,398 -13,022 -2.11 107,379 -4.95 0.7461
2022-08-12 2022-06-30 13F INSPIRE MED SYS COM 457730109 618,420 -5,758 -0.92 112,967 -29.49 0.7142
2022-05-13 2022-03-31 13F INSPIRE MED SYS COM 457730109 624,178 -67,271 -9.73 160,220 0.72 0.7888
2022-02-15 2021-12-31 13F Inspire Medical Systems COM 457730109 691,449 -35,693 -4.91 159,075 -6.06 0.6489
2021-11-12 2021-09-30 13F INSPIRE MED SYS COM 457730109 727,142 73,275 11.21 169,337 34.01 0.6882
2021-08-12 2021-06-30 13F INSPIRE MED SYS COM 457730109 653,867 2,918 0.45 126,366 -6.21 0.5130
2021-05-10 2021-03-31 13F INSPIRE MED SYS COM 457730109 650,949 -115,006 -15.01 134,739 -6.48 0.6050
2021-02-12 2020-12-31 13F INSPIRE MED SYS COM 457730109 765,955 -367,883 -32.45 144,068 -1.54 0.7090
2020-11-10 2020-09-30 13F INSPIRE MED SYS COM 457730109 1,133,838 -6,146 -0.54 146,322 47.50 0.9306
2020-08-12 2020-06-30 13F INSPIRE MED SYS COM 457730109 1,139,984 255,313 28.86 99,201 86.02 0.7177
2020-05-08 2020-03-31 13F INSPIRE MED SYS COM 457730109 884,671 230,870 35.31 53,328 9.91 0.5553
2020-02-13 2019-12-31 13F INSPIRE MED SYS COM 457730109 653,801 34,792 5.62 48,519 28.45 0.3979
2019-11-14 2019-09-30 13F INSPIRE MED SYS COM 457730109 619,009 -61,865 -9.09 37,772 -8.53 0.3599
2019-08-07 2019-06-30 13F INSPIRE MED SYS COM 457730109 680,874 466,590 217.74 41,295 239.40 0.4023
2019-05-08 2019-03-31 13F INSPIRE MED SYS COM 457730109 214,284 61,722 40.46 12,167 88.75 0.1326
2019-02-14 2018-12-31 13F INSPIRE MED SYS COM 457730109 152,562 117,556 335.82 6,446 337.61 0.0859
2018-11-07 2018-09-30 13F Inspire Medical Systems COM 457730109 35,006 5,149 17.25 1,473 38.31 0.0168
2018-08-02 2018-06-30 13F Inspire Medical Systems COM 457730109 29,857 29,857 1,065 0.0128
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.