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 |
|---|---|---|---|---|---|---|
| Griffin Jerry C | Director | SELL | $100K–$500K | 529 | $307.52 | May 24, 2023 |
| Griffin Jerry C | Director | EXERCISE | $15K–$50K | 1K | $16.00 | May 24, 2023 |
| Griffin Jerry C | Director | EXERCISE | $15K–$50K | 1K | $16.00 | May 18, 2023 |
| Griffin Jerry C | Director | SELL | $100K–$500K | 529 | $293.91 | May 18, 2023 |
| Jandrich Steven | VP, Human Resources | EXERCISE | $100K–$500K | 5K | $71.00 | May 16, 2023 |
| Jandrich Steven | VP, Human Resources | SELL | $1M+ | 5K | $292.84 | May 16, 2023 |
| Jandrich Steven | VP, Human Resources | SELL | $100K–$500K | 2K | $280.12 | May 11, 2023 |
| Jandrich Steven | VP, Human Resources | EXERCISE | $50K–$100K | 2K | $42.15 | May 11, 2023 |
| Griffin Jerry C | Director | EXERCISE | $15K–$50K | 1K | $16.00 | May 11, 2023 |
| Griffin Jerry C | Director | SELL | $100K–$500K | 529 | $280.00 | May 11, 2023 |
| Jandrich Steven | VP, Human Resources | EXERCISE | $100K–$500K | 8K | $42.15 | May 3, 2023 |
| Jandrich Steven | VP, Human Resources | SELL | $1M+ | 8K | $271.02 | May 3, 2023 |
| Herbert Timothy P. | CEO and President | SELL | $1M+ | 32K | $275.39 | Mar 13, 2023 |
| Ban Randy | Chief Commercial O… | EXERCISE | $1K–$15K | 10K | $0.94 | Mar 3, 2023 |
| Ban Randy | Chief Commercial O… | SELL | $1M+ | 10K | $8353.11 | Mar 3, 2023 |
| Ebeling Philip | COO | EXERCISE | $1M+ | 7K | $194.82 | Feb 21, 2023 |
| Ebeling Philip | COO | SELL | $1M+ | 7K | $275.00 | Feb 21, 2023 |
| Herbert Timothy P. | CEO and President | SELL | $500K+ | 3K | $275.05 | Feb 15, 2023 |
| Herbert Timothy P. | CEO and President | SELL | $1M+ | 11K | $275.08 | Feb 10, 2023 |
| Rondoni John | CTO | SELL | $1M+ | 6K | $257.67 | Feb 8, 2023 |
| Buchholz Richard | CFO | SELL | $1M+ | 13K | $250.03 | Jan 13, 2023 |
| Rondoni John | CTO | SELL | $100K–$500K | 1K | $256.00 | Jan 10, 2023 |
| Ban Randy | Chief Commercial O… | SELL | $1M+ | 10K | $252.10 | Jan 6, 2023 |
| Ban Randy | Chief Commercial O… | EXERCISE | $1K–$15K | 10K | $0.94 | Jan 6, 2023 |
| Rondoni John | CTO | SELL | $100K–$500K | 678 | $251.72 | Dec 21, 2022 |
| NELSON MARILYN C | Director | SELL | $1M+ | 25K | $244.77 | Dec 20, 2022 |
| Ban Randy | Chief Commercial O… | EXERCISE | $1K–$15K | 10K | $0.94 | Dec 6, 2022 |
| Ban Randy | Chief Commercial O… | SELL | $1M+ | 10K | $235.87 | Dec 6, 2022 |
| Griffin Jerry C | Director | SELL | $1M+ | 9K | $221.42 | Nov 15, 2022 |
| Griffin Jerry C | Director | EXERCISE | $1K–$15K | 11K | $0.94 | Nov 15, 2022 |
| NELSON MARILYN C | Director | SELL | $1M+ | 10K | $267.50 | Apr 8, 2022 |
| Buchholz Richard | CFO | SELL | $1M+ | 15K | $258.67 | Apr 5, 2022 |
| Herbert Timothy P. | CEO and President | SELL | $1M+ | 130K | $250.52 | Mar 30, 2022 |
| NELSON MARILYN C | Director | SELL | $1M+ | 15K | $255.01 | Mar 30, 2022 |
| Herbert Timothy P. | CEO and President | SELL | $1M+ | 20K | $225.40 | Mar 21, 2022 |
| Ban Randy | Chief Commercial O… | SELL | $1M+ | 10K | $241.60 | Jan 6, 2022 |
| Ban Randy | Chief Commercial O… | EXERCISE | $15K–$50K | 10K | $1.88 | Jan 6, 2022 |
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