INSP · Insider trading · 13F holders · Congress trades
Inspire Medical Systems, Inc. (INSP)
Who is buying and selling INSP: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 7
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $57K
- Congress trades, 12 months
- 1
INSP at a glance
- Between Aug 1, 2026 and Oct 29, 2026, 1 INSP insider filed 1 sale worth $57K on SEC Form 4, and no open-market purchases.
- 7 13F filers hold INSP among their 50 largest positions, worth $195.4M combined, including James Flynn. The biggest bets by portfolio weight are Soleus Capital Management, L.P. (3.0%), Bullseye Asset Management LLC (1.2%) and Braidwell LP (1.2%). In their latest 13Fs, 0 managers opened a new position and 1 added to one.
- Members of Congress have disclosed 1 INSP trade since 2023, 0 purchases and 1 sale in the past year; the latest was Daniel S. Goldman (D-NY), selling $1K–15K on Apr 10, 2023.
- INSP last closed at $71.18 on Oct 29, 2026.
INSP insider trading
Between Aug 1, 2026 and Oct 29, 2026, 1 INSP insider filed 1 sale worth $57K on SEC Form 4, and no open-market purchases.
| Filed | Insider | Role | Trade | Shares | Price | Value | Form 4 |
|---|---|---|---|---|---|---|---|
| Aug 11, 2026 | Kelly Jason P | See Remarks | Sale | 963 | $59.55 | $57K | SEC |
Who owns INSP? Hedge funds and superinvestors
7 13F filers hold INSP among their 50 largest positions, worth $195.4M combined, including James Flynn. The biggest bets by portfolio weight are Soleus Capital Management, L.P. (3.0%), Bullseye Asset Management LLC (1.2%) and Braidwell LP (1.2%). In their latest 13Fs, 0 managers opened a new position and 1 added to one.
Superinvestors holding INSP: James Flynn 0.7%
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Soleus Capital Management, L.P.Hedge fund | 3.0% | $86.2M | 1,931,436 | +235.1% shares | Q2 2026 |
| James FlynnHedge fund | 0.7% | $57.9M | 1,296,862 | -52.0% shares | Q2 2026 |
| Braidwell LPHedge fund | 1.2% | $30.2M | 677,570 | +0.0% shares | Q2 2026 |
| ADAR1 Capital Management, LLCHedge fund | 0.8% | $16.7M | 374,617 | -7.5% shares | Q2 2026 |
| Bullseye Asset Management LLCInstitutional asset manager | 1.2% | $2.3M | 52,230 | +2.2% shares | Q2 2026 |
| Brown Capital Management LLCMutual fund manager | 0.3% | $1.7M | 25,094 | -42.9% shares | Q3 2026 |
| Palo Alto Investors LPHedge fund | 0.1% | $391K | 8,772 | +0.0% shares | Q2 2026 |
Each manager counts with its latest 13F (Q3 2026: 1, Q2 2026: 6). Screen INSP in the grand portfolio →
INSP stock trades by members of Congress
Members of Congress have disclosed 1 INSP trade since 2023, 0 purchases and 1 sale in the past year; the latest was Daniel S. Goldman (D-NY), selling $1K–15K on Apr 10, 2023.
| Filed | Member | Trade | Amount | Traded | Since |
|---|---|---|---|---|---|
| May 19, 2023 | Daniel S. GoldmanD-NY · House | Sale | $1K–15K | Apr 10, 2023 | -69.7% |
INSP questions and answers
Are insiders buying INSP stock?
Between Aug 1, 2026 and Oct 29, 2026, 1 INSP insider filed 1 sale worth $57K on SEC Form 4, and no open-market purchases.
Which hedge funds own INSP?
7 13F filers hold INSP among their 50 largest positions, worth $195.4M combined, including James Flynn. The biggest bets by portfolio weight are Soleus Capital Management, L.P. (3.0%), Bullseye Asset Management LLC (1.2%) and Braidwell LP (1.2%). In their latest 13Fs, 0 managers opened a new position and 1 added to one.
Has Congress traded INSP?
Members of Congress have disclosed 1 INSP trade since 2023, 0 purchases and 1 sale in the past year; the latest was Daniel S. Goldman (D-NY), selling $1K–15K on Apr 10, 2023.
Who is the largest holder of INSP?
Among 13F filers, Soleus Capital Management, L.P. reports the largest INSP position, $86.2M (1,931,436 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Soleus Capital Management, L.P.'s: 3.0% of its portfolio.
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