Lewis William

Insmed Incorporated ยท Chair and CEO

Lewis William is listed in public filings as director, officer: Chair and CEO. This Lewis William insider trading page organizes Form 4 disclosures, reported purchases and sales, transaction dates, share amounts, related issuers, and historical insider activity so readers can review the person's public trading record in one place. Companies and tickers connected to this insider trading profile include Insmed Incorporated (INSM), and NewAmsterdam Pharma Company N.V. (NAMS). Investors use Lewis William's insider trading disclosures to study buying and selling patterns, position changes, company-specific activity, and the source evidence behind each reported transaction.

Latest Actions

CompanyHolding ValueLast TransactionAmountTransaction PriceCurrent Price
Insmed IncorporatedINSM$27M265.4k sharesSellJun 3, 2026$777.8K7.6k shares$102.27--

Insider Trades History

CompanyHolding ValueLast TransactionAmountTransaction PriceCurrent Price
Insmed IncorporatedINSM$30M281k sharesSellMay 18, 2026$1.3M11.8k shares$106.39--
Insmed IncorporatedINSM$29M273k sharesSellMay 18, 2026$853.1K8k shares$106.97--
Insmed IncorporatedINSM$31M292.8k sharesSellMay 18, 2026$605.9K5.8k shares$105.32--
Insmed IncorporatedINSM$763k25k sharesGrant / ExerciseMay 18, 2026$190.6K6.3k shares$30.46--
Insmed IncorporatedINSM$305k17.8k sharesGrant / ExerciseMay 18, 2026$76.2K4.4k shares$17.16--
Insmed IncorporatedINSM$33M287.9k sharesSellMay 13, 2026$1.5M13.3k shares$116.18--
Insmed IncorporatedINSM$42M305.5k sharesSellMay 4, 2026$728.6K5.3k shares$137.01--
Insmed IncorporatedINSM$42M302.8k sharesSellMay 4, 2026$375.1K2.7k shares$137.86--
Insmed IncorporatedINSM$953k31.3k sharesGrant / ExerciseMay 4, 2026$190.6K6.3k shares$30.46--
Insmed IncorporatedINSM$42M301.6k sharesSellMay 4, 2026$173.4K1.2k shares$139.09--
Insmed IncorporatedINSM$42M310.9k sharesSellMay 4, 2026$81.0K599 shares$135.18--
Insmed IncorporatedINSM$381k22.2k sharesGrant / ExerciseMay 4, 2026$76.2K4.4k shares$17.16--
Insmed IncorporatedINSM$42M311.5k sharesSellMay 4, 2026$58.1K433 shares$134.18--
Insmed IncorporatedINSM$42M301.2k sharesSellMay 4, 2026$53.2K381 shares$139.60--
Insmed IncorporatedINSM$44M304.3k sharesSellApr 16, 2026$772.7K5.4k shares$143.81--
Insmed IncorporatedINSM$44M302k sharesSellApr 16, 2026$326.2K2.3k shares$144.66--
Insmed IncorporatedINSM$44M309.6k sharesSellApr 16, 2026$321.2K2.2k shares$142.99--
Insmed IncorporatedINSM$1.1M37.6k sharesGrant / ExerciseApr 16, 2026$190.6K6.3k shares$30.46--
Insmed IncorporatedINSM$44M301.2k sharesSellApr 16, 2026$120.3K825 shares$145.79--
Insmed IncorporatedINSM$457k26.6k sharesGrant / ExerciseApr 16, 2026$76.2K4.4k shares$17.16--
Insmed IncorporatedINSM$49M302.6k sharesSellApr 6, 2026$1.4M8.5k shares$163.23--
Insmed IncorporatedINSM$49M301.2k sharesSellApr 6, 2026$235.2K1.4k shares$164.01--
Insmed IncorporatedINSM$1.3M43.8k sharesGrant / ExerciseApr 6, 2026$190.6K6.3k shares$30.46--
Insmed IncorporatedINSM$50M311.1k sharesSellApr 6, 2026$127.3K787 shares$161.73--
Insmed IncorporatedINSM$533k31.1k sharesGrant / ExerciseApr 6, 2026$76.2K4.4k shares$17.16--
Insmed IncorporatedINSM$43M301.2k sharesSellMar 19, 2026$653.3K4.5k shares$144.11--
Insmed IncorporatedINSM$44M305.7k sharesSellMar 19, 2026$650.7K4.5k shares$143.42--
Insmed IncorporatedINSM$44M310.3k sharesSellMar 19, 2026$231.6K1.6k shares$142.17--
Insmed IncorporatedINSM$1.5M50.1k sharesGrant / ExerciseMar 19, 2026$190.6K6.3k shares$30.46--
Insmed IncorporatedINSM$610k35.5k sharesGrant / ExerciseMar 19, 2026$76.2K4.4k shares$17.16--
Insmed IncorporatedINSM$44M303.3k sharesSellMar 5, 2026$571.8K3.9k shares$146.66--
Insmed IncorporatedINSM$45M307.2k sharesSellMar 5, 2026$376.1K2.6k shares$145.27--
Insmed IncorporatedINSM$44M301.2k sharesSellMar 5, 2026$314.0K2.1k shares$147.54--
Insmed IncorporatedINSM$45M309.8k sharesSellMar 5, 2026$300.4K2.1k shares$144.23--
Insmed IncorporatedINSM$1.7M56.3k sharesGrant / ExerciseMar 5, 2026$190.6K6.3k shares$30.46--
Insmed IncorporatedINSM$686k40k sharesGrant / ExerciseMar 5, 2026$76.2K4.4k shares$17.16--
Insmed IncorporatedINSM$46M304.6k sharesSellFeb 19, 2026$515.8K3.4k shares$151.12--
Insmed IncorporatedINSM$46M302.2k sharesSellFeb 19, 2026$361.1K2.4k shares$151.92--
Insmed IncorporatedINSM$46M309.9k sharesSellFeb 19, 2026$296.6K2k shares$149.17--
Insmed IncorporatedINSM$46M308k sharesSellFeb 19, 2026$283.8K1.9k shares$150.10--
Insmed IncorporatedINSM$1.9M62.6k sharesGrant / ExerciseFeb 19, 2026$190.6K6.3k shares$30.46--
Insmed IncorporatedINSM$46M301.2k sharesSellFeb 19, 2026$158.0K1k shares$153.38--
Insmed IncorporatedINSM$762k44.4k sharesGrant / ExerciseFeb 19, 2026$76.2K4.4k shares$17.16--
Insmed IncorporatedINSM$45M302.5k sharesSellFeb 9, 2026$1.1M7.2k shares$148.02--
Insmed IncorporatedINSM$46M309.7k sharesSellFeb 9, 2026$719.4K4.9k shares$147.17--
Insmed IncorporatedINSM$45M301.2k sharesSellFeb 9, 2026$191.5K1.3k shares$148.83--
Insmed IncorporatedINSM$2.1M68.9k sharesGrant / ExerciseFeb 9, 2026$190.6K6.3k shares$30.46--
Insmed IncorporatedINSM$838k48.8k sharesGrant / ExerciseFeb 9, 2026$76.2K4.4k shares$17.16--
Insmed IncorporatedINSM$48M303.9k sharesSellFeb 3, 2026$470.4K3k shares$156.34--
Insmed IncorporatedINSM$49M309.4k sharesSellJan 20, 2026$948.7K6k shares$158.99--
Insmed IncorporatedINSM$49M307.1k sharesSellJan 20, 2026$356.3K2.2k shares$159.85--
Insmed IncorporatedINSM$50M315.3k sharesSellJan 20, 2026$196.9K1.2k shares$158.37--
Insmed IncorporatedINSM$2.3M75.1k sharesGrant / ExerciseJan 20, 2026$190.6K6.3k shares$30.46--
Insmed IncorporatedINSM$50M316.6k sharesSellJan 20, 2026$157.7K1k shares$156.80--
Insmed IncorporatedINSM$914k53.3k sharesGrant / ExerciseJan 20, 2026$76.2K4.4k shares$17.16--
Insmed IncorporatedINSM$49M306.9k sharesSellJan 20, 2026$40.8K254 shares$160.70--
Insmed IncorporatedINSM$53M315k sharesSellJan 12, 2026$1.2M7.2k shares$168.63--
Insmed IncorporatedINSM$52M308k sharesSellJan 12, 2026$1.2M7k shares$169.57--
Insmed IncorporatedINSM$54M322.1k sharesSellJan 12, 2026$666.6K4k shares$167.73--
Insmed IncorporatedINSM$2.5M81.4k sharesGrant / ExerciseJan 12, 2026$190.6K6.3k shares$30.46--
Insmed IncorporatedINSM$990k57.7k sharesGrant / ExerciseJan 12, 2026$76.2K4.4k shares$17.16--
Insmed IncorporatedINSM$54M306.9k sharesSellJan 12, 2026$55.1K315 shares$174.86--
Insmed IncorporatedINSM$53M307.2k sharesSellJan 12, 2026$51.2K297 shares$172.36--
Insmed IncorporatedINSM$53M307.5k sharesSellJan 12, 2026$50.9K297 shares$171.31--
Insmed IncorporatedINSM$52M307.8k sharesSellJan 12, 2026$27.2K160 shares$170.24--
Insmed IncorporatedINSM$55M315.4k sharesSellJan 8, 2026$561.4K3.2k shares$174.17--
NewAmsterdam Pharma Company N.V.NAMS$542k15.3k sharesGrant / ExerciseJan 7, 2026$542.4K15.3k shares$35.45--
Insmed IncorporatedINSM$56M318.6k sharesSellJan 7, 2026$412.6K2.4k shares$175.07--
NewAmsterdam Pharma Company N.V.NAMS--10.4k sharesGrant / ExerciseJan 7, 2026Disclosure amount unavailable3.4k shares----
Insmed IncorporatedINSM$56M321k sharesSellJan 6, 2026$710.0K4.1k shares$173.33--
Insmed IncorporatedINSM$20M110.4k sharesGrant / ExerciseJan 2, 2026$19.6M110.4k shares$177.12--
Insmed IncorporatedINSM--325.1k sharesGrant / ExerciseJan 2, 2026Disclosure amount unavailable21.2k shares----
Insmed IncorporatedINSM$52M306.3k sharesSellDec 18, 2025$366.6K2.2k shares$168.54--
Insmed IncorporatedINSM$52M304.3k sharesSellDec 18, 2025$328.6K1.9k shares$169.58--
Insmed IncorporatedINSM$52M309.9k sharesSellDec 18, 2025$297.0K1.8k shares$166.60--
Insmed IncorporatedINSM$52M308.4k sharesSellDec 18, 2025$239.4K1.4k shares$167.29--
Insmed IncorporatedINSM$51M312.8k sharesSellDec 18, 2025$239.1K1.5k shares$163.19--
Insmed IncorporatedINSM$2.7M87.6k sharesGrant / ExerciseDec 18, 2025$190.6K6.3k shares$30.46--
Insmed IncorporatedINSM$51M311.7k sharesSellDec 18, 2025$115.2K697 shares$165.21--