INSM INSMED Inc
Price Chart
Executive Summary
Three top INSM insiders—CEO, CFO, and CMO—collectively sold $1.29M in open-market sales over a 7-day window. The total value is ~0.006% of INSM's $22.7B market cap, well below the 0.1% materiality threshold, making this a routine liquidity-driven cluster. Historical calibration shows prior INSM reports have underperformed significantly (avg T+20 alpha -21.65%), reinforcing that this filing warrants a neutral, low-impact read.
Key Financial Metrics
Actionable Insight
This cluster is too small relative to market cap to warrant a directional trade. Monitor for any upcoming INSM earnings or pipeline catalysts that could explain the timing, but treat these sales as routine portfolio diversification. No bearish signal.
Key Facts
- CEO Lewis William sold 7,605 shares for ~$778K on June 3, 2026
- CFO Bonstein Sara sold 2,404 shares for ~$246K on June 3, 2026
- CMO Flammer Martina sold 4,424 shares total (~$455K) across June 3 and June 5, 2026
- Total cluster value of $1.29M represents ~0.006% of INSM's $22.7B market cap
- All sales were open-market (code S), with no 10b5-1 plan disclosure in the filing
Financial Impact
Total insider sales of $1.29M, equivalent to ~0.006% of market cap — immaterial
Risk Factors
- Insider sales could accelerate if a negative catalyst (e.g., FDA setback) emerges, but current volume is negligible
- Historical INSM reports show poor predictive accuracy (0% win rate at T+20), so even a larger cluster would need independent confirmation
Market Snapshot
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-INSM-1780690509017 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
|
Jun 5, 2026
9d ago
|
Insider Cluster
| $94.15 awaiting T+5 | awaiting T+5 | — | $97.85 (+3.93%) |
|
Jun 5, 2026
9d ago
|
Insider Cluster
| $103.78 awaiting T+5 | awaiting T+5 | — | $97.85 (−5.71%) |
|
May 16, 2026
29d ago
|
ANALYST-UPGRADE
| $153.32 $163.03 | ▲ +6.33% | ▲ +2.03% | $97.85 (−36.18%) |
|
May 15, 2026
4w ago
|
S-3ASR
| $107.15 $108.87 | ▲ +1.61% | ▼ −0.01% | $97.85 (−8.68%) |
|
May 15, 2026
4w ago
|
Insider Cluster
| $107.15 $108.87 | ▲ +1.61% | ▼ −0.01% | $97.85 (−8.68%) |
|
May 13, 2026
4w ago
|
144
| $115.62 $109.53 | ▼ −5.27% | ▼ −4.55% | $97.85 (−15.37%) |
|
May 7, 2026
5w ago
|
8-K
| $105.00 $117.99 | ▲ +12.37% | ▲ +10.87% | $97.85 (−6.81%) |
|
May 4, 2026
6w ago
|
Insider Cluster
| $140.01 $103.89 | ▼ −25.80% | ▼ −28.73% | $97.85 (−30.11%) |
|
Apr 16, 2026
8w ago
|
ANALYST-UPGRADE
| $142.79 $143.83 | ▲ +0.73% | ▼ −0.26% | $97.85 (−31.47%) |
|
Apr 16, 2026
8w ago
|
ANALYST-UPGRADE
| $142.79 $143.83 | ▲ +0.73% | ▼ −0.26% | $97.85 (−31.47%) |
US Market Status
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