INSM INSMED Inc
Price Chart
Executive Summary
Five C-suite insiders at INSMED Inc, including the CEO and CFO, collectively sold $1.75M in open-market sales over a 7-day window. The total value is ~0.008% of the $22.7B market cap, making the cluster economically trivial and consistent with routine portfolio diversification or tax planning rather than a bearish signal.
Key Financial Metrics
Actionable Insight
Five C-suite insiders at INSMED Inc, including the CEO and CFO, collectively sold $1.75M in open-market sales over a 7-day window. The total value is ~0.008% of the $22.7B market cap, making the cluster economically trivial and consistent with routine portfolio diversification or tax planning rather than a bearish signal.
Key Facts
- 5 insiders sold a total of $1.75M in open-market transactions from May 27 to June 3, 2026.
- CEO Lewis William sold $778K; CFO Sara Bonstein sold $246K; COO Roger Adsett sold $242K; CMO Martina Flammer sold $262K; CLO Michael Smith sold $221K.
- Total sales represent ~0.008% of INSM's $22.7B market cap — well below the 0.1% materiality threshold.
- All sales occurred at ~$102.27 per share, suggesting a coordinated window rather than opportunistic timing.
- Prior 30-day insider activity shows $3.2M in total sells, consistent with ongoing routine selling patterns.
Financial Impact
Insider sales of $1.75M represent ~0.008% of market cap — immaterial.
Risk Factors
- No material risk identified from this cluster; sales are too small to signal distress.
- Historical performance on INSM reports shows poor predictive accuracy (0% win rate T+20), but this cluster is too small to drive meaningful price action regardless.
Market Snapshot
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-INSM-1780690693321 |
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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