The insider sales are too small to be informative. Focus on the strong Q1 earnings and BRINSUPRI launch trajectory as the primary catalysts. Monitor for any larger insider sales in the coming weeks that could signal a change in sentiment.
Price Chart
Executive Summary
Insmed's CEO and CMO sold a combined $1.27M in stock within a week of a strong Q1 2026 earnings beat (revenue up 230% YoY, EPS beat). The CMO's sale ($1.22M) is a cash-out following option exercises; the CEO's sale ($58K) is routine. At 0.005% of market cap, the total is trivial and likely liquidity-driven, not a bearish signal.
Key Financial Metrics
Key Facts
- CEO William Lewis sold 433 shares for ~$58K on May 4, 2026.
- CMO Martina Flammer sold 12,119 shares for ~$1.22M on May 11, 2026, following option exercises.
- Total cluster value of $1.27M represents ~0.005% of INSM's $25.1B market cap.
- Q1 2026 revenue of $306M (up 230% YoY) and EPS beat consensus; BRINSUPRI guidance reiterated at ≥$1B.
- All cross-filing context pairs are AMPLIFIERS, but the dollar amount is too small to warrant escalation.
Financial Impact
Total insider sales of $1.27M, negligible relative to $25.1B market cap.
Risk Factors
- Insider sales could accelerate if the stock continues to rally post-earnings.
- Any negative news on BRINSUPRI reimbursement or competition could reverse recent gains.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-INSM-1778705432876 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Aug 19, 2026 6w ago | Insider Cluster | $130.66 $119.92 | ▼ −8.22% | ▼ −6.70% | $111.12 (−14.95%) |
Aug 12, 2026 7w ago | Insider Cluster | $126.33 $129.41 | ▲ +2.44% | ▲ +4.19% | $111.12 (−12.04%) |
Aug 6, 2026 8w ago | 8-K | $132.55 $126.68 | ▼ −4.43% | ▼ −5.03% | $111.12 (−16.17%) |
Jul 24, 2026 10w ago | Institutional Cluster | $106.92 $125.77 | ▲ +17.63% | ▲ +14.00% | $111.12 (+3.93%) |
Jul 21, 2026 10w ago | ANALYST-UPGRADE | $108.62 $128.46 | ▲ +18.27% | ▲ +15.70% | $111.12 (+2.30%) |
Jul 16, 2026 11w ago | 8-K | $107.46 $126.33 | ▲ +17.56% | ▲ +13.94% | $111.12 (+3.41%) |
Jun 26, 2026 14w ago | Insider Cluster | $104.74 $106.92 | ▲ +2.08% | ▲ +2.36% | $111.12 (+6.09%) |
Jun 5, 2026 17w ago | Insider Cluster | $94.17 $111.54 | ▲ +18.45% | ▲ +16.81% | $111.12 (+18.00%) |
Jun 5, 2026 17w ago | Insider Cluster | $94.17 $111.54 | ▲ +18.45% | ▲ +16.81% | $111.12 (+18.00%) |
May 15, 2026 19w ago | S-3ASR | $107.15 $95.52 | ▼ −10.85% | ▼ −12.44% | $111.12 (+3.71%) |
US Market Status
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