Lewis William
- SEC CIK
- 0001402051
In the past year, 20 open-market sale filings worth $32.8M and no purchases.
Current role at each company
- INSM INSMED IncChair and CEOas of Jul 24, 2026
- NAMS NewAmsterdam Pharma Co N.V.Directoras of Jan 9, 2026
Open-market trades in the past year
Open-market purchases (P) and sales (S) filed in the last 365 days, not counting derivative securities or duplicate filings. Values leave out price outliers.
- Bought
- –
- 0 filings
- Sold
- $32.8M
- 20 filings
- Net
- −$32.8M
- Bought minus sold
- Companies
- 1
- With open-market trades
Trades
Every Form 4 that lists Lewis William as a reporting owner, including filings made jointly with others, grouped by company. Each row adds up one type of transaction in one filing. Only open-market purchases (P) and sales (S) are shown by default.
INSM INSMED Inc
Chair and CEO67 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 2021 (view filing) | Sep 30 | 1 day | Lewis WilliamChair and CEO | SSale | −96.6K | $27.36 | −$2.64M | −32.3%202.2K after | 2 lots |
| Dec 28, 2021 (view filing)4:08 PM ET | Dec 23-27 | 5 days | Lewis WilliamChair and CEO | SSale | −96.6K | $27.97 | −$2.70M | −32.3%202.2K after | 3 lots |
| Jan 7, 2022 (view filing) | Jan 5-6 | 2 days | Lewis WilliamChair and CEO | SSale | −12.5K | $26.92 | −$335.5K | −6.2%189.8K after | 2 lots |
| Jan 13, 2022 (view filing) | Jan 11 | 2 days | Lewis WilliamChair and CEO | SSale | −2.87K | $25.11 | −$72.1K | −1.3%217.6K after | |
| Mar 25, 2022 (view filing) | Mar 23 | 2 days | Lewis WilliamChair and CEO | SSale | −96.6K | $23.16 | −$2.24M | −30.7%217.6K after | 3 lots |
| May 18, 2022 (view filing) | May 16-17 | 2 days | Lewis WilliamChair and CEO | SSale | −9.39K | $19.52 | −$183.4K | −3.5%255.8K after | 2 lots |
| Jul 8, 2022 (view filing) | Jul 7 | 1 day | Lewis WilliamChair and CEO | SSale | −96.6K | $23.00 | −$2.22M | −27.3%256.7K after | |
| Aug 10, 2022 (view filing) | Aug 8 | 2 days | Lewis WilliamChair and CEO | SSale | −216.8K | $27.84 | −$6.04M | −100.0%0 after | 4 lots |
| Jan 6, 2023 (view filing) | Jan 5 | 1 day | Lewis WilliamChair and CEO | SSale | −7.01K | $19.80 | −$138.8K | −2.7%249.7K after | |
| Jan 12, 2023 (view filing) | Jan 10 | 2 days | Lewis WilliamChair and CEO | SSale | −6.99K | $18.00 | −$125.9K | −2.6%265.1K after |