Lewis William
SEC insider (Form 3/4/5 filer). CIK 0001402051. Chair and CEO at INSMED Inc (INSM) and 1 other issuer. 231 reported Form 4/5 transactions since Sep 2024; latest on Jul 23, 2026. Located in BRIDGEWATER, NJ.
Companies Lewis William has filed insider reports for
- INSMED Inc (INSM): Director, Officer, Chair and CEO
- NewAmsterdam Pharma Co N.V. (NAMS): Director
Lewis William
CIK: 0001402051
Transaction Breakdown
Open Market Buys (P)0 (0.0%)
High conviction signal
Open Market Sales (S)168 (72.7%)
Position reduction
Option Exercises (M)56 (24.2%)
Derivative conversions
Awards (A)7 (3.0%)
Compensation grants
Other (G, F, J, C, D, …)0 (0.0%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (231 total)
- Jul 23, 2026INSM
INSMED Inc
SaleDirect4.8K shares at avg. $105.62$510K - Jul 23, 2026INSM
INSMED Inc
SaleDirect5.9K shares at avg. $106.43$625K - Jul 23, 2026INSM
INSMED Inc
ExerciseDirect6.3K shares at avg. $30.46$191K - Jul 23, 2026INSM
INSMED Inc
ExerciseDirect4.4K shares at avg. $17.16$76K - Jul 9, 2026INSM
INSMED Inc
ExerciseDirect6.3K shares at avg. $30.46$191K - Jul 9, 2026INSM
INSMED Inc
SaleDirect3.4K shares at avg. $118.52$398K - Jul 9, 2026INSM
INSMED Inc
SaleDirect5K shares at avg. $116.55$583K - Jul 9, 2026INSM
INSMED Inc
ExerciseDirect4.4K shares at avg. $17.16$76K - Jul 9, 2026INSM
INSMED Inc
SaleDirect2.3K shares at avg. $117.62$275K - Jun 25, 2026INSM
INSMED Inc
ExerciseDirect12.5K shares at avg. $30.46$381K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jul 23, 2026 |  INSM INSMED Inc | Sale | 4,828 | $105.62 | $509,933 | Direct |
| Jul 23, 2026 | INSM INSMED Inc | Sale | 5,872 | $106.43 | $624,957 | Direct |
| Jul 23, 2026 | INSM INSMED Inc | Exercise | 6,260 | $30.46 | $190,680 | Direct |
| Jul 23, 2026 | INSM INSMED Inc | Exercise | 4,440 | $17.16 | $76,190 | Direct |
| Jul 9, 2026 | INSM INSMED Inc | Exercise | 6,259 | $30.46 | $190,649 | Direct |
| Jul 9, 2026 | INSM INSMED Inc | Sale | 3,359 | $118.52 | $398,109 | Direct |
| Jul 9, 2026 | INSM INSMED Inc | Sale | 5,005 | $116.55 | $583,333 | Direct |
| Jul 9, 2026 | INSM INSMED Inc | Exercise | 4,440 | $17.16 | $76,190 | Direct |
| Jul 9, 2026 | INSM INSMED Inc | Sale | 2,335 | $117.62 | $274,643 | Direct |
| Jun 25, 2026 | INSM INSMED Inc | Exercise | 12,518 | $30.46 | $381,298 | Direct |
1-10 of 231 transactions
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