INSP in the 13F filings
Inspire Med Sys Inc · CUSIP 457730109
- Quarter end
- 31 Mar 2024
- the date the book describes
- Filed
- 5 Nov 2026
- latest of these filings; the earliest 1 May 2024
- Managers listing it
- 8
- at least, of 95 tracked, among listed positions
- Comparable managers
- 93
- filed both Q4 2023 and Q1 2024; 7 listed it in both
- Shares listed
- 9,190,978
- combined, among listed positions
- Reported value
- $2.0bn
- combined, at the quarter end
Among the 93 comparable managers: 4 buyers (opened or added shares) and 6 sellers (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.
Managers listing INSP in Q1 2024
8 of 8 holders
| Action | Filing | |||||
|---|---|---|---|---|---|---|
| Fidelity (FMR LLC) | 4,437,765 | $953m | 0.06% | Added | +1,180,221 | 5 Nov 2026 (the filing on sec.gov) |
| Wellington Management Group LLP | 1,952,658 | $419m | 0.07% | Added | +522,392 | 15 May 2024 (the filing on sec.gov) |
| Baillie Gifford & Co | 1,467,613 | $315m | 0.25% | Added | +237,734 | 1 May 2024 (the filing on sec.gov) |
| Farallon Capital Management LLC | 626,854 | $135m | 0.57% | Trimmed | -228,242 | 24 May 2024 (the filing on sec.gov) |
| Artisan Partners LP | 301,174 | $65m | 0.09% | New | new | 13 May 2024 (the filing on sec.gov) |
| Point72 Asset Management LP | 262,301 | $56m | 0.14% | Trimmed | -210,894 | 15 May 2024 (the filing on sec.gov) |
| ExodusPoint Capital Management LP | 79,488 | $17m | 0.13% | Trimmed | -9,276 | 14 May 2024 (the filing on sec.gov) |
| Schonfeld Strategic Advisors LLC | 63,125 | $14m | 0.09% | Trimmed | -44,217 | 15 May 2024 (the filing on sec.gov) |
Largest increases and reductions, by shares
Increases
- Fidelity (FMR LLC)existing position · 4,437,765 shares now+1,180,221
- Wellington Management Group LLPexisting position · 1,952,658 shares now+522,392
- Artisan Partners LPnew position · 301,174 shares now+301,174
- Baillie Gifford & Coexisting position · 1,467,613 shares now+237,734
Reductions
- Farallon Capital Management LLCexisting position · 626,854 shares now-228,242
- Point72 Asset Management LPexisting position · 262,301 shares now-210,894
- Schonfeld Strategic Advisors LLCexisting position · 63,125 shares now-44,217
- ExodusPoint Capital Management LPexisting position · 79,488 shares now-9,276
New positions and exits
New (1)
Exited (2)
- Marshall Wace LLPwas $50m
- Tudor Investment Corpwas $15m
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q2 2018 | 1 | $1.2m | n.a. | n.a. |
| Q4 2018 | 1 | $7.0m | n.a. | n.a. |
| Q1 2019 | 2 | $6.5m | n.a. | n.a. |
| Q2 2019 | 2 | $2.2m | n.a. | n.a. |
| Q4 2019 | 1 | $385k | n.a. | n.a. |
| Q1 2020 | 4 | $7.0m | n.a. | n.a. |
| Q2 2020 | 5 | $422m | n.a. | n.a. |
| Q3 2020 | 8 | $638m | n.a. | n.a. |
| Q4 2020 | 10 | $936m | n.a. | n.a. |
| Q1 2021 | 10 | $790m | n.a. | n.a. |
| Q2 2021 | 11 | $277m | n.a. | n.a. |
| Q3 2021 | 11 | $486m | n.a. | n.a. |
| Q4 2021 | 10 | $282m | n.a. | n.a. |
| Q1 2022 | 14 | $1.3bn | n.a. | n.a. |
| Q2 2022 | 13 | $790m | n.a. | n.a. |
| Q3 2022 | 14 | $436m | n.a. | n.a. |
| Q4 2022 | 15 | $740m | n.a. | n.a. |
| Q1 2023 | 15 | $738m | n.a. | n.a. |
| Q2 2023 | 18 | $1.2bn | n.a. | n.a. |
| Q3 2023 | 13 | $1.1bn | n.a. | n.a. |
| Q4 2023 | 10 | $1.6bn | 9 | 2 |
| Q1 2024 | 8 | $2.0bn | 4 | 6 |
| Q2 2024 | 7 | $666m | 6 | 4 |
| Q3 2024 | 11 | $1.6bn | 7 | 4 |
| Q4 2024 | 11 | $1.2bn | 6 | 6 |
| Q1 2025 | 10 | $627m | 6 | 4 |
| Q2 2025 | 7 | $649m | 4 | 4 |
| Q3 2025 | 8 | $232m | 6 | 3 |
| Q4 2025 | 10 | $554m | 18 | 20 |
| Q1 2026 | 4 | $199m | 14 | 19 |
| Q2 2026 | 3 | $45m | 13 | 15 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
INSP and LLY →INSP and JNJ →INSP and VRTX →Choose a stock to compare with INSP →
How much of the picture this is
A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.
Which funds own INSP, latest filings →Back to the 13F Explorer →