Inspire Medical Systems, Inc.
Total Trades
87
Buys
2
Sells
55
Largest Trade
N/A
Insiders
11
Institutional Funds
279
Inst. Value
$1M+
Activist Filings
21
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Rondoni John | See Remarks | SELL | $1K–$15K | 109 | $100.00 | Jan 12, 2026 |
| mcCormick Shawn | Director | SELL | $100K–$500K | 1K | $139.00 | Dec 4, 2025 |
| mcCormick Shawn | Director | SELL | $100K–$500K | 2K | $127.48 | Dec 1, 2025 |
| Curet Myriam | Director | SELL | <$1K | 6 | $102.59 | Nov 25, 2025 |
| Curet Myriam | Director | BUY | <$1K | 5 | $160.72 | Nov 25, 2025 |
| Buchholz Richard | CFO | SELL | $1M+ | 11K | $93.39 | Sep 3, 2025 |
| Rondoni John | See Remarks | SELL | $100K–$500K | 2K | $149.38 | May 21, 2025 |
| mcCormick Shawn | Director | SELL | $50K–$100K | 360 | $160.00 | May 5, 2025 |
| mcCormick Shawn | Director | GRANT | N/A | 1K | — | May 5, 2025 |
| Rondoni John | CTO | SELL | $1K–$15K | 58 | $215.00 | Jan 10, 2025 |
| Rondoni John | CTO | SELL | $1M+ | 9K | $193.47 | Nov 5, 2024 |
| Rondoni John | CTO | EXERCISE | $500K+ | 9K | $61.38 | Nov 5, 2024 |
| Rondoni John | CTO | SELL | $500K+ | 5K | $189.83 | Aug 23, 2024 |
| Rondoni John | CTO | EXERCISE | $100K–$500K | 5K | $71.00 | Aug 23, 2024 |
| Ban Randy | Chief Commercial O… | SELL | $1M+ | 21K | $192.04 | Aug 20, 2024 |
| Ban Randy | Chief Commercial O… | EXERCISE | $500K+ | 21K | $42.15 | Aug 20, 2024 |
| Buchholz Richard | CFO | SELL | $1M+ | 15K | $230.03 | Apr 18, 2024 |
| Herbert Timothy P. | CEO and President | SELL | $1M+ | 40K | $205.09 | Apr 3, 2024 |
| Griffin Jerry C | Director | EXERCISE | $1K–$15K | 296 | $16.00 | Apr 3, 2024 |
| Griffin Jerry C | Director | SELL | $1K–$15K | 32 | $213.99 | Apr 3, 2024 |
| Griffin Jerry C | Director | EXERCISE | $15K–$50K | 1K | $16.00 | Mar 27, 2024 |
| Griffin Jerry C | Director | SELL | $100K–$500K | 554 | $197.81 | Mar 27, 2024 |
| Rondoni John | CTO | SELL | $500K+ | 4K | $194.40 | Mar 27, 2024 |
| Griffin Jerry C | Director | SELL | $100K–$500K | 554 | $193.53 | Mar 20, 2024 |
| Griffin Jerry C | Director | EXERCISE | $15K–$50K | 1K | $16.00 | Mar 20, 2024 |
| Rondoni John | CTO | SELL | $1M+ | 9K | $179.25 | Mar 4, 2024 |
| Ban Randy | Chief Commercial O… | SELL | $1M+ | 15K | $184.70 | Feb 28, 2024 |
| Ban Randy | Chief Commercial O… | EXERCISE | $100K–$500K | 15K | $11.72 | Feb 28, 2024 |
| Sparks Charisse Y | Chief Medical Offi… | BUY | $15K–$50K | 100 | $153.50 | Jan 24, 2024 |
| Herbert Timothy P. | CEO and President | SELL | N/A | 48K | — | Sep 13, 2023 |
| Griffin Jerry C | Director | SELL | $100K–$500K | 529 | $290.47 | Aug 1, 2023 |
| Griffin Jerry C | Director | EXERCISE | $15K–$50K | 1K | $16.00 | Aug 1, 2023 |
| Griffin Jerry C | Director | EXERCISE | $15K–$50K | 1K | $16.00 | Jul 26, 2023 |
| Griffin Jerry C | Director | SELL | $100K–$500K | 529 | $304.99 | Jul 26, 2023 |
| Griffin Jerry C | Director | SELL | $100K–$500K | 529 | $326.84 | Jul 19, 2023 |
| Griffin Jerry C | Director | EXERCISE | $15K–$50K | 1K | $16.00 | Jul 19, 2023 |
| Griffin Jerry C | Director | SELL | $100K–$500K | 529 | $310.42 | Jul 12, 2023 |
| Griffin Jerry C | Director | EXERCISE | $15K–$50K | 1K | $16.00 | Jul 12, 2023 |
| Griffin Jerry C | Director | SELL | $100K–$500K | 529 | $322.09 | Jul 6, 2023 |
| Griffin Jerry C | Director | EXERCISE | $15K–$50K | 1K | $16.00 | Jul 6, 2023 |
| Griffin Jerry C | Director | SELL | $100K–$500K | 529 | $315.87 | Jun 28, 2023 |
| Griffin Jerry C | Director | EXERCISE | $15K–$50K | 1K | $16.00 | Jun 28, 2023 |
| Griffin Jerry C | Director | EXERCISE | $15K–$50K | 1K | $16.00 | Jun 22, 2023 |
| Griffin Jerry C | Director | SELL | $100K–$500K | 529 | $307.64 | Jun 22, 2023 |
| Griffin Jerry C | Director | EXERCISE | $15K–$50K | 1K | $16.00 | Jun 14, 2023 |
| Griffin Jerry C | Director | SELL | $100K–$500K | 529 | $309.03 | Jun 14, 2023 |
| Griffin Jerry C | Director | EXERCISE | $15K–$50K | 1K | $16.00 | Jun 7, 2023 |
| Griffin Jerry C | Director | SELL | $100K–$500K | 529 | $305.69 | Jun 7, 2023 |
| Griffin Jerry C | Director | EXERCISE | $15K–$50K | 1K | $16.00 | Jun 1, 2023 |
| Griffin Jerry C | Director | SELL | $100K–$500K | 529 | $294.90 | Jun 1, 2023 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 279 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 1.2M | $1M+ | SH |
| STATE STREET CORP | 919K | $1M+ | SH |
| FULLER & THALER ASSET MANAGEMENT, INC. | 668K | $1M+ | SH |
| FULLER & THALER ASSET MANAGEMENT, INC. | 668K | $1M+ | SH |
| BRAIDWELL LP | 541K | $1M+ | SH |
| Aberdeen Group plc | 461K | $1M+ | SH |
| BNP PARIBAS FINANCIAL MARKETS | 455K | $1M+ | SH |
| EVENTIDE ASSET MANAGEMENT, LLC | 440K | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 427K | $1M+ | SH |
| RENAISSANCE TECHNOLOGIES LLC | 411K | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 316K | $1M+ | SH |
| Jefferies Financial Group Inc. | 308K | $1M+ | SH |
| Soleus Capital Management, L.P. | 299K | $1M+ | SH |
| Jain Global LLC | 268K | $1M+ | SH |
| Assenagon Asset Management S.A. | 265K | $1M+ | SH |
| Champlain Investment Partners, LLC | 203K | $1M+ | SH |
| KEYBANK NATIONAL ASSOCIATION/OH | 200K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 194K | $1M+ | SH |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | 188K | $1M+ | SH |
| BALYASNY ASSET MANAGEMENT L.P. | 187K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Feb 17, 2026
0.6%
175K shares
Wellington Management Group LLP
SC 13G · Feb 10, 2026
7.6%
2.2M shares
SC 13G/A · Nov 14, 2025
0.0%
0 shares
SC 13G · Nov 13, 2025
5.1%
1.5M shares
SC 13G/A · Nov 12, 2025
0.5%
136K shares
SC 13G/A · Oct 17, 2025
11.3%
3.4M shares
SC 13G/A · Oct 7, 2025
2.5%
741K shares
SC 13G · Oct 6, 2025
4.7%
1.4M shares
SC 13G · Aug 14, 2025
8.0%
2.4M shares
SC 13G · May 13, 2025
5.1%
1.5M shares
SC 13G/A · Apr 30, 2025
12.6%
3.8M shares
SC 13G/A · Feb 12, 2025
8.3%
2.5M shares
SC 13G/A · Nov 12, 2024
9.8%
2.9M shares
SC 13G/A · Oct 7, 2024
13.8%
4.1M shares
SC 13G/A · Oct 4, 2024
10.8%
3.2M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
9.9%
2.9M shares
SC 13G/A · Jan 29, 2024
6.1%
1.8M shares
SC 13G · Nov 13, 2023
11.0%
3.2M shares
SC 13G/A · Jan 31, 2023
7.4%
2.1M shares
The Vanguard Group - 23-1945930
SC 13G/A · Nov 10, 2022
10.0%
2.9M shares
SC 13G/A · Jan 10, 2022
5.6%
1.5M shares