INSPIRE MEDICAL SYSTEMS INC (INSP) Institutional Ownership Changes & 13F Activity

INSPIRE MEDICAL SYSTEMS INC (INSP). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q4 2025). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Wellington Management Group Llp, Deerfield Management Company, L.P., D. E. Shaw & Co., Inc., Artisan Partners Limited Partnership, and Janus Henderson Group Plc.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Advisors Asset Management, Inc.Sell-200-100.0%0$0.00Q4 2025Aug 26, 2026
Ensign Peak Advisors, IncSell-4,300-71.9%1,677$154.67KQ4 2025Aug 18, 2026
Algert Global LlcBuy+22,763+96.9%46,250$4.27MQ4 2025Aug 11, 2026
Hsbc Holdings PlcBuy+43,328—43,328$4.00MQ4 2025Mar 06, 2026
Shp Wealth ManagementBuy+3—3$277.00Q4 2025Mar 04, 2026
Bell Investment Advisors, IncBuy+20—20$1.84KQ4 2025Feb 24, 2026
Virtu Financial LlcBuy+5,712—5,712$527.00KQ4 2025Feb 23, 2026
Mv Capital Management, Inc.Buy+8+800.0%9$831.00Q4 2025Feb 23, 2026
Corient Private Wealth LlcBuy+3,653—3,653$336.92KQ4 2025Feb 19, 2026
Birchwood Financial Partners, Inc.Buy+40—40$3.69KQ4 2025Feb 19, 2026
Regal Partners LtdBuy+211,304—211,304$19.49MQ4 2025Feb 18, 2026
Raymond James Financial IncBuy+30,622—30,622$2.82MQ4 2025Feb 18, 2026
State Of Tennessee, Department Of TreasuryBuy+16,697—16,697$1.27MQ4 2025Feb 18, 2026
Caitlin John, LlcBuy+5—5$461.00Q4 2025Feb 18, 2026
Wellington Management Group LlpBuy+2,211,091—2,211,091$203.93MQ4 2025Feb 17, 2026
Deerfield Management Company, L.P.Buy+1,505,872—1,505,872$138.89MQ4 2025Feb 17, 2026
D. E. Shaw & Co., Inc.Buy+1,212,162—1,212,162$111.80MQ4 2025Feb 17, 2026
Artisan Partners Limited PartnershipBuy+785,742—785,742$72.47MQ4 2025Feb 17, 2026
Janus Henderson Group PlcBuy+562,331—562,331$51.86MQ4 2025Feb 17, 2026
Braidwell LpBuy+540,890—540,890$49.89MQ4 2025Feb 17, 2026
Citadel Advisors LlcBuy+511,318—511,318$47.16MQ4 2025Feb 17, 2026
AmundiBuy+364,622—364,622$33.63MQ4 2025Feb 17, 2026
Driehaus Capital Management LlcBuy+348,500—348,500$32.14MQ4 2025Feb 17, 2026
Bamco IncBuy+337,486—337,486$31.13MQ4 2025Feb 17, 2026
Price T Rowe Associates IncBuy+308,171—308,171$28.42MQ4 2025Feb 17, 2026
Jain Global LlcBuy+268,250—268,250$24.74MQ4 2025Feb 17, 2026
Trexquant Investment LpBuy+213,249—213,249$19.67MQ4 2025Feb 17, 2026
Bank Of America CorpBuy+210,126—210,126$19.38MQ4 2025Feb 17, 2026
Millennium Management LlcBuy+202,140—202,140$18.64MQ4 2025Feb 17, 2026
Northern Trust CorpBuy+197,456—197,456$18.21MQ4 2025Feb 17, 2026
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Frequently asked questions about INSP activity

  • Which institutional owners are buying INSP?

    Institutional owners buying INSP include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in INSP activity?

    "Buy" means an investor increased their reported position in INSP compared to the prior reporting period. This reflects growing exposure to INSPIRE MEDICAL SYSTEMS INC (INSP) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in INSP increasing?

    Institutional interest in INSP can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.

INSP Institutional Ownership Changes and 13F Activity Q4 2025 | InsiderSet