Insider trades › William Lewis
William Lewis
A corporate insider: an officer, director or owner of more than 10% of a company. Insiders report their trades to the SEC on Form 4The form insiders use to report each purchase or sale of their company's stock. It is due within two business days of the trade. · Last filing Jul 24, 2026
Companies
2
where this person reports as an insider
Open-market buys
0
among the latest 100 trades
Open-market sales
100
among the latest 100 trades
Ask your AI about this
Connect Claude, ChatGPT, Gemini or Grok (Microsoft 365 Copilot coming soon) to 13F.ai and ask in plain English. Copy a question to get started:
Using 13F.ai, list William Lewis's open-market buys and sells across companies in the last two years, with the Form 4 links.
Using 13F.ai, how did the stocks William Lewis bought perform after the purchase compared with the S&P 500?
Using 13F.ai, are other insiders at the same companies buying or selling at the same time as William Lewis?
Connect your AI · Plans and the 7-day free trial (card required)
Buying and selling by quarter
Dollars bought and sold on the open market over the last two years.
Bought Sold
By trade date, using the shares and price reported for each trade. Stock grants, option exercises and shares withheld for tax are left out.
Roles
The companies where this person reports as an insider, and their position at each, most recent first.
Latest open-market trades
Purchases and sales at every company, most recent filing first.
| How the stock has done since the trade date, measured against the S&P 500 over the same days. It describes the stock, not the trader's actual gain or loss. | Filing | ||||||
|---|---|---|---|---|---|---|---|
| Jul 23, 2026 | INSM Insmed Incorporated | Sale | 4,828 | $105.62 | $509.9K | +10.6% | Form 4 ↗ |
| Jul 23, 2026 | INSM Insmed Incorporated | Sale | 5,872 | $106.43 | $625.0K | +10.6% | Form 4 ↗ |
| Jul 9, 2026 | INSM Insmed Incorporated | Sale | 5,005 | $116.55 | $583.3K | +2.1% | Form 4 ↗ |
| Jul 9, 2026 | INSM Insmed Incorporated | Sale | 2,335 | $117.62 | $274.6K | +2.1% | Form 4 ↗ |
| Jul 9, 2026 | INSM Insmed Incorporated | Sale | 3,359 | $118.52 | $398.1K | +2.1% | Form 4 ↗ |
| Jun 25, 2026 | INSM Insmed Incorporated | Sale | 12,091 | $102.34 | $1.2M | +13.2% | Form 4 ↗ |
| Jun 25, 2026 | INSM Insmed Incorporated | Sale | 1,836 | $103.10 | $189.3K | +13.2% | Form 4 ↗ |
| Jun 25, 2026 | INSM Insmed Incorporated | Sale | 3,723 | $104.28 | $388.2K | +13.2% | Form 4 ↗ |
| Jun 25, 2026 | INSM Insmed Incorporated | Sale | 2,456 | $105.27 | $258.5K | +13.2% | Form 4 ↗ |
| Jun 25, 2026 | INSM Insmed Incorporated | Sale | 1,292 | $106.27 | $137.3K | +13.2% | Form 4 ↗ |
| Jun 8, 2026 | INSM Insmed Incorporated | Sale | 6,515 | $94.03 | $612.6K | +26.6% | Form 4 ↗ |
| Jun 3, 2026 | INSM Insmed Incorporated | Sale | 7,605 | $102.27 | $777.8K | +16.6% | Form 4 ↗ |
| May 18, 2026 | INSM Insmed Incorporated | Sale | 5,753 | $105.32 | $605.9K | +10.9% | Form 4 ↗ |
| May 18, 2026 | INSM Insmed Incorporated | Sale | 11,836 | $106.39 | $1.3M | +10.9% | Form 4 ↗ |
| May 18, 2026 | INSM Insmed Incorporated | Sale | 7,975 | $106.97 | $853.1K | +10.9% | Form 4 ↗ |
| May 13, 2026 | INSM Insmed Incorporated | Sale | 13,283 | $116.18 | $1.5M | +1.1% | Form 4 ↗ |
| May 4, 2026 | INSM Insmed Incorporated | Sale | 433 | $134.18 | $58.1K | -18.5% | Form 4 ↗ |
| May 4, 2026 | INSM Insmed Incorporated | Sale | 599 | $135.18 | $81.0K | -18.5% | Form 4 ↗ |
| May 4, 2026 | INSM Insmed Incorporated | Sale | 5,318 | $137.01 | $728.6K | -18.5% | Form 4 ↗ |
| May 4, 2026 | INSM Insmed Incorporated | Sale | 2,721 | $137.86 | $375.1K | -18.5% | Form 4 ↗ |
| May 4, 2026 | INSM Insmed Incorporated | Sale | 1,247 | $139.09 | $173.4K | -18.5% | Form 4 ↗ |
| May 4, 2026 | INSM Insmed Incorporated | Sale | 381 | $139.60 | $53.2K | -18.5% | Form 4 ↗ |
| Apr 16, 2026 | INSM Insmed Incorporated | Sale | 2,246 | $142.99 | $321.2K | -22.7% | Form 4 ↗ |
| Apr 16, 2026 | INSM Insmed Incorporated | Sale | 5,373 | $143.81 | $772.7K | -22.7% | Form 4 ↗ |
| Apr 16, 2026 | INSM Insmed Incorporated | Sale | 2,255 | $144.66 | $326.2K | -22.7% | Form 4 ↗ |
| Apr 16, 2026 | INSM Insmed Incorporated | Sale | 825 | $145.79 | $120.3K | -22.7% | Form 4 ↗ |
| Apr 6, 2026 | INSM Insmed Incorporated | Sale | 787 | $161.73 | $127.3K | -40.5% | Form 4 ↗ |
| Apr 6, 2026 | INSM Insmed Incorporated | Sale | 8,478 | $163.23 | $1.4M | -40.5% | Form 4 ↗ |
| Apr 6, 2026 | INSM Insmed Incorporated | Sale | 1,434 | $164.01 | $235.2K | -40.5% | Form 4 ↗ |
| Mar 19, 2026 | INSM Insmed Incorporated | Sale | 1,629 | $142.17 | $231.6K | -30.2% | Form 4 ↗ |
| Mar 19, 2026 | INSM Insmed Incorporated | Sale | 4,537 | $143.42 | $650.7K | -30.2% | Form 4 ↗ |
| Mar 19, 2026 | INSM Insmed Incorporated | Sale | 4,533 | $144.11 | $653.3K | -30.2% | Form 4 ↗ |
| Mar 5, 2026 | INSM Insmed Incorporated | Sale | 2,589 | $145.27 | $376.1K | -26.3% | Form 4 ↗ |
| Mar 5, 2026 | INSM Insmed Incorporated | Sale | 2,083 | $144.23 | $300.4K | -26.3% | Form 4 ↗ |
| Mar 5, 2026 | INSM Insmed Incorporated | Sale | 3,899 | $146.66 | $571.8K | -26.3% | Form 4 ↗ |
| Mar 5, 2026 | INSM Insmed Incorporated | Sale | 2,128 | $147.54 | $314.0K | -26.3% | Form 4 ↗ |
| Feb 19, 2026 | INSM Insmed Incorporated | Sale | 1,988 | $149.17 | $296.5K | -35.0% | Form 4 ↗ |
| Feb 19, 2026 | INSM Insmed Incorporated | Sale | 1,891 | $150.10 | $283.8K | -35.0% | Form 4 ↗ |
| Feb 19, 2026 | INSM Insmed Incorporated | Sale | 3,413 | $151.12 | $515.8K | -35.0% | Form 4 ↗ |
| Feb 19, 2026 | INSM Insmed Incorporated | Sale | 2,377 | $151.92 | $361.1K | -35.0% | Form 4 ↗ |
| Feb 19, 2026 | INSM Insmed Incorporated | Sale | 1,030 | $153.38 | $158.0K | -35.0% | Form 4 ↗ |
| Feb 9, 2026 | INSM Insmed Incorporated | Sale | 4,888 | $147.17 | $719.4K | -27.7% | Form 4 ↗ |
| Feb 9, 2026 | INSM Insmed Incorporated | Sale | 7,221 | $148.02 | $1.1M | -27.7% | Form 4 ↗ |
| Feb 9, 2026 | INSM Insmed Incorporated | Sale | 1,287 | $148.83 | $191.5K | -27.7% | Form 4 ↗ |
| Feb 3, 2026 | INSM Insmed Incorporated | Sale | 3,009 | $156.34 | $470.4K | -32.3% | Form 4 ↗ |
| Jan 20, 2026 | INSM Insmed Incorporated | Sale | 1,006 | $156.80 | $157.7K | -37.2% | Form 4 ↗ |
| Jan 20, 2026 | INSM Insmed Incorporated | Sale | 1,243 | $158.37 | $196.9K | -37.2% | Form 4 ↗ |
| Jan 20, 2026 | INSM Insmed Incorporated | Sale | 5,967 | $158.99 | $948.7K | -37.2% | Form 4 ↗ |
| Jan 20, 2026 | INSM Insmed Incorporated | Sale | 2,229 | $159.85 | $356.3K | -37.2% | Form 4 ↗ |
| Jan 20, 2026 | INSM Insmed Incorporated | Sale | 254 | $160.70 | $40.8K | -37.2% | Form 4 ↗ |
| Jan 12, 2026 | INSM Insmed Incorporated | Sale | 7,176 | $168.63 | $1.2M | -36.3% | Form 4 ↗ |
| Jan 12, 2026 | INSM Insmed Incorporated | Sale | 3,974 | $167.73 | $666.6K | -36.3% | Form 4 ↗ |
| Jan 12, 2026 | INSM Insmed Incorporated | Sale | 6,996 | $169.57 | $1.2M | -36.3% | Form 4 ↗ |
| Jan 12, 2026 | INSM Insmed Incorporated | Sale | 160 | $170.24 | $27.2K | -36.3% | Form 4 ↗ |
| Jan 12, 2026 | INSM Insmed Incorporated | Sale | 297 | $171.31 | $50.9K | -36.3% | Form 4 ↗ |
| Jan 12, 2026 | INSM Insmed Incorporated | Sale | 297 | $172.36 | $51.2K | -36.3% | Form 4 ↗ |
| Jan 12, 2026 | INSM Insmed Incorporated | Sale | 315 | $174.86 | $55.1K | -36.3% | Form 4 ↗ |
| Jan 8, 2026 | INSM Insmed Incorporated | Sale | 3,223 | $174.17 | $561.3K | -38.2% | Form 4 ↗ |
| Jan 7, 2026 | INSM Insmed Incorporated | Sale | 2,357 | $175.07 | $412.6K | -40.6% | Form 4 ↗ |
| Jan 6, 2026 | INSM Insmed Incorporated | Sale | 4,096 | $173.33 | $710.0K | -39.8% | Form 4 ↗ |
| Dec 18, 2025 | INSM Insmed Incorporated | Sale | 447 | $164.24 | $73.4K | -38.8% | Form 4 ↗ |
| Dec 18, 2025 | INSM Insmed Incorporated | Sale | 697 | $165.21 | $115.2K | -38.8% | Form 4 ↗ |
| Dec 18, 2025 | INSM Insmed Incorporated | Sale | 1,783 | $166.60 | $297.0K | -38.8% | Form 4 ↗ |
| Dec 18, 2025 | INSM Insmed Incorporated | Sale | 1,431 | $167.29 | $239.4K | -38.8% | Form 4 ↗ |
| Dec 18, 2025 | INSM Insmed Incorporated | Sale | 2,175 | $168.54 | $366.6K | -38.8% | Form 4 ↗ |
| Dec 18, 2025 | INSM Insmed Incorporated | Sale | 1,938 | $169.58 | $328.6K | -38.8% | Form 4 ↗ |
| Dec 18, 2025 | INSM Insmed Incorporated | Sale | 362 | $170.26 | $61.6K | -38.8% | Form 4 ↗ |
| Dec 18, 2025 | INSM Insmed Incorporated | Sale | 51 | $171.20 | $8,731 | -38.8% | Form 4 ↗ |
| Dec 18, 2025 | INSM Insmed Incorporated | Sale | 350 | $162.26 | $56.8K | -38.8% | Form 4 ↗ |
| Dec 18, 2025 | INSM Insmed Incorporated | Sale | 1,465 | $163.19 | $239.1K | -38.8% | Form 4 ↗ |
| Dec 4, 2025 | INSM Insmed Incorporated | Sale | 2,222 | $205.66 | $457.0K | -51.1% | Form 4 ↗ |
| Dec 4, 2025 | INSM Insmed Incorporated | Sale | 4,516 | $204.62 | $924.1K | -51.1% | Form 4 ↗ |
| Dec 4, 2025 | INSM Insmed Incorporated | Sale | 2,921 | $206.49 | $603.2K | -51.1% | Form 4 ↗ |
| Dec 4, 2025 | INSM Insmed Incorporated | Sale | 1,040 | $207.42 | $215.7K | -51.1% | Form 4 ↗ |
| Aug 18, 2025 | INSM Insmed Incorporated | Sale | 2,968 | $127.59 | $378.7K | -22.1% | Form 4 ↗ |
| Aug 18, 2025 | INSM Insmed Incorporated | Sale | 2,481 | $128.76 | $319.5K | -22.1% | Form 4 ↗ |
| Aug 18, 2025 | INSM Insmed Incorporated | Sale | 1,416 | $129.47 | $183.3K | -22.1% | Form 4 ↗ |
| Aug 4, 2025 | INSM Insmed Incorporated | Sale | 1,693 | $108.80 | $184.2K | -10.6% | Form 4 ↗ |
| Aug 4, 2025 | INSM Insmed Incorporated | Sale | 3,199 | $109.68 | $350.9K | -10.6% | Form 4 ↗ |
| Aug 4, 2025 | INSM Insmed Incorporated | Sale | 1,938 | $110.91 | $214.9K | -10.6% | Form 4 ↗ |
| Jul 15, 2025 | INSM Insmed Incorporated | Sale | 2,168 | $101.71 | $220.5K | -3.5% | Form 4 ↗ |
| Jul 15, 2025 | INSM Insmed Incorporated | Sale | 4,492 | $102.66 | $461.1K | -3.5% | Form 4 ↗ |
| Jul 15, 2025 | INSM Insmed Incorporated | Sale | 170 | $103.32 | $17.6K | -3.5% | Form 4 ↗ |
| Jul 1, 2025 | INSM Insmed Incorporated | Sale | 3,666 | $97.73 | $358.3K | +2.0% | Form 4 ↗ |
| Jul 1, 2025 | INSM Insmed Incorporated | Sale | 2,349 | $98.83 | $232.2K | +2.0% | Form 4 ↗ |
| Jul 1, 2025 | INSM Insmed Incorporated | Sale | 815 | $99.61 | $81.2K | +2.0% | Form 4 ↗ |
| Jun 16, 2025 | INSM Insmed Incorporated | Sale | 1,558 | $99.65 | $155.3K | -5.9% | Form 4 ↗ |
| Jun 16, 2025 | INSM Insmed Incorporated | Sale | 442 | $98.51 | $43.5K | -5.9% | Form 4 ↗ |
| Jun 16, 2025 | INSM Insmed Incorporated | Sale | 2,300 | $100.70 | $231.6K | -5.9% | Form 4 ↗ |
| Jun 16, 2025 | INSM Insmed Incorporated | Sale | 904 | $101.39 | $91.7K | -5.9% | Form 4 ↗ |
| Jun 16, 2025 | INSM Insmed Incorporated | Sale | 7,000 | $98.50 | $689.5K | -5.9% | Form 4 ↗ |
| Jun 16, 2025 | INSM Insmed Incorporated | Sale | 32,490 | $99.51 | $3.2M | -5.9% | Form 4 ↗ |
| Jun 16, 2025 | INSM Insmed Incorporated | Sale | 48,531 | $100.54 | $4.9M | -5.9% | Form 4 ↗ |
| Jun 16, 2025 | INSM Insmed Incorporated | Sale | 41,784 | $101.23 | $4.2M | -5.9% | Form 4 ↗ |
| Jun 3, 2025 | INSM Insmed Incorporated | Sale | 5,472 | $71.50 | $391.2K | +39.2% | Form 4 ↗ |
| Jun 2, 2025 | INSM Insmed Incorporated | Sale | 4,400 | $71.35 | $313.9K | +41.8% | Form 4 ↗ |
| Jun 2, 2025 | INSM Insmed Incorporated | Sale | 1,430 | $71.94 | $102.9K | +41.8% | Form 4 ↗ |
| Jun 2, 2025 | INSM Insmed Incorporated | Sale | 1,000 | $70.23 | $70.2K | +41.8% | Form 4 ↗ |
| May 20, 2025 | INSM Insmed Incorporated | Sale | 2,863 | $66.90 | $191.5K | +49.6% | Form 4 ↗ |
| May 20, 2025 | INSM Insmed Incorporated | Sale | 2,251 | $68.13 | $153.4K | +49.6% | Form 4 ↗ |
Each row links to its Form 4. Since trade compares the stock’s move from the close on the trade date (or the next trading day) to its latest close with the S&P 500 over the same days, adjusted for splits and excluding dividends. It describes the stock, not what the trader made: we don’t know their purchase price, position size or later sales. A dash means the trade isn’t matched to a listed stock, or there is no closing price after it yet.
When several people report on the same filing, we list it under the first one named, so trades by someone usually listed second may be missing here. Information, not investment advice: see the disclaimer.