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.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Advisors Asset Management, Inc. | Sell | -200 | -100.0% | 0 | $0.00 | Q4 2025 | Aug 26, 2026 |
| Ensign Peak Advisors, Inc | Sell | -4,300 | -71.9% | 1,677 | $154.67K | Q4 2025 | Aug 18, 2026 |
| Algert Global Llc | Buy | +22,763 | +96.9% | 46,250 | $4.27M | Q4 2025 | Aug 11, 2026 |
| Hsbc Holdings Plc | Buy | +43,328 | — | 43,328 | $4.00M | Q4 2025 | Mar 06, 2026 |
| Shp Wealth Management | Buy | +3 | — | 3 | $277.00 | Q4 2025 | Mar 04, 2026 |
| Bell Investment Advisors, Inc | Buy | +20 | — | 20 | $1.84K | Q4 2025 | Feb 24, 2026 |
| Virtu Financial Llc | Buy | +5,712 | — | 5,712 | $527.00K | Q4 2025 | Feb 23, 2026 |
| Mv Capital Management, Inc. | Buy | +8 | +800.0% | 9 | $831.00 | Q4 2025 | Feb 23, 2026 |
| Corient Private Wealth Llc | Buy | +3,653 | — | 3,653 | $336.92K | Q4 2025 | Feb 19, 2026 |
| Birchwood Financial Partners, Inc. | Buy | +40 | — | 40 | $3.69K | Q4 2025 | Feb 19, 2026 |
| Regal Partners Ltd | Buy | +211,304 | — | 211,304 | $19.49M | Q4 2025 | Feb 18, 2026 |
| Raymond James Financial Inc | Buy | +30,622 | — | 30,622 | $2.82M | Q4 2025 | Feb 18, 2026 |
| State Of Tennessee, Department Of Treasury | Buy | +16,697 | — | 16,697 | $1.27M | Q4 2025 | Feb 18, 2026 |
| Caitlin John, Llc | Buy | +5 | — | 5 | $461.00 | Q4 2025 | Feb 18, 2026 |
| Wellington Management Group Llp | Buy | +2,211,091 | — | 2,211,091 | $203.93M | Q4 2025 | Feb 17, 2026 |
| Deerfield Management Company, L.P. | Buy | +1,505,872 | — | 1,505,872 | $138.89M | Q4 2025 | Feb 17, 2026 |
| D. E. Shaw & Co., Inc. | Buy | +1,212,162 | — | 1,212,162 | $111.80M | Q4 2025 | Feb 17, 2026 |
| Artisan Partners Limited Partnership | Buy | +785,742 | — | 785,742 | $72.47M | Q4 2025 | Feb 17, 2026 |
| Janus Henderson Group Plc | Buy | +562,331 | — | 562,331 | $51.86M | Q4 2025 | Feb 17, 2026 |
| Braidwell Lp | Buy | +540,890 | — | 540,890 | $49.89M | Q4 2025 | Feb 17, 2026 |
| Citadel Advisors Llc | Buy | +511,318 | — | 511,318 | $47.16M | Q4 2025 | Feb 17, 2026 |
| Amundi | Buy | +364,622 | — | 364,622 | $33.63M | Q4 2025 | Feb 17, 2026 |
| Driehaus Capital Management Llc | Buy | +348,500 | — | 348,500 | $32.14M | Q4 2025 | Feb 17, 2026 |
| Bamco Inc | Buy | +337,486 | — | 337,486 | $31.13M | Q4 2025 | Feb 17, 2026 |
| Price T Rowe Associates Inc | Buy | +308,171 | — | 308,171 | $28.42M | Q4 2025 | Feb 17, 2026 |
| Jain Global Llc | Buy | +268,250 | — | 268,250 | $24.74M | Q4 2025 | Feb 17, 2026 |
| Trexquant Investment Lp | Buy | +213,249 | — | 213,249 | $19.67M | Q4 2025 | Feb 17, 2026 |
| Bank Of America Corp | Buy | +210,126 | — | 210,126 | $19.38M | Q4 2025 | Feb 17, 2026 |
| Millennium Management Llc | Buy | +202,140 | — | 202,140 | $18.64M | Q4 2025 | Feb 17, 2026 |
| Northern Trust Corp | Buy | +197,456 | — | 197,456 | $18.21M | Q4 2025 | Feb 17, 2026 |
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.
Related INSP Institutional Insights
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- INSP Insider Trading & SEC Form 4 Activity
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