Lewis William — SEC Form 4 filings
SEC reporting owner CIK 1402051. 48 Form 4 filings on record with FilingPulse; latest filed 2026-07-24.
Transaction summary — filings shown
Covers all 48 filings on record, filed 2024-01-10 to 2026-07-24. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 172 legs across 43 filings — 871,052 shares, $80,779,028 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 130.
- Largest priced transaction: sale of 79,350 shares @ $80.90 ($6,419,415) in INSMED Inc, filed 2025-02-07.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| INSMED Inc (INSM) | Chair and CEO, Director | 46 | — | 172 legs · 871,052 sh · $80,779,028 | 126 |
| NewAmsterdam Pharma Co N.V. (NAMS) | Director | 2 | — | — | 4 |
Form 4 filings — Lewis William
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-07-24 | 4 | INSMED Inc (INSM) | Option exercise (M): 6,260 @ $30.46 · Option exercise (M): 4,440 @ $17.16 · Sale (S): 4,828 @ $105.62 · Sale (S): 5,872 @ $106.43 · Option exercise (M): 6,260 (derivative) @ $0 · Option exercise (M): 4,440 (derivative) @ $0 | EDGAR |
| 2026-07-10 | 4 | INSMED Inc (INSM) | Option exercise (M): 6,259 @ $30.46 · Option exercise (M): 4,440 @ $17.16 · Sale (S): 5,005 @ $116.55 · Sale (S): 2,335 @ $117.62 · Sale (S): 3,359 @ $118.52 · Option exercise (M): 6,259 (derivative) @ $0 · +1 more | EDGAR |
| 2026-06-26 | 4 | INSMED Inc (INSM) | Option exercise (M): 12,518 @ $30.46 · Option exercise (M): 8,880 @ $17.16 · Sale (S): 12,091 @ $102.34 · Sale (S): 1,836 @ $103.10 · Sale (S): 3,723 @ $104.28 · Sale (S): 2,456 @ $105.27 · +3 more | EDGAR |
| 2026-06-10 | 4 | INSMED Inc (INSM) | Sale (S): 6,515 @ $94.03 | EDGAR |
| 2026-06-05 | 4 | INSMED Inc (INSM) | Sale (S): 7,605 @ $102.27 | EDGAR |
| 2026-05-20 | 4 | INSMED Inc (INSM) | Option exercise (M): 6,259 @ $30.46 · Option exercise (M): 4,440 @ $17.16 · Sale (S): 5,753 @ $105.32 · Sale (S): 11,836 @ $106.39 · Sale (S): 7,975 @ $106.97 · Option exercise (M): 6,259 (derivative) @ $0 · +1 more | EDGAR |
| 2026-05-15 | 4 | INSMED Inc (INSM) | Sale (S): 13,283 @ $116.18 | EDGAR |
| 2026-05-06 | 4 | INSMED Inc (INSM) | Option exercise (M): 6,259 @ $30.46 · Option exercise (M): 4,440 @ $17.16 · Sale (S): 433 @ $134.18 · Sale (S): 599 @ $135.18 · Sale (S): 5,318 @ $137.01 · Sale (S): 2,721 @ $137.86 · +4 more | EDGAR |
| 2026-04-17 | 4 | INSMED Inc (INSM) | Option exercise (M): 6,259 @ $30.46 · Option exercise (M): 4,440 @ $17.16 · Sale (S): 2,246 @ $142.99 · Sale (S): 5,373 @ $143.81 · Sale (S): 2,255 @ $144.66 · Sale (S): 825 @ $145.79 · +2 more | EDGAR |
| 2026-04-08 | 4 | INSMED Inc (INSM) | Option exercise (M): 6,259 @ $30.46 · Option exercise (M): 4,440 @ $17.16 · Sale (S): 787 @ $161.73 · Sale (S): 8,478 @ $163.23 · Sale (S): 1,434 @ $164.01 · Option exercise (M): 6,259 (derivative) @ $0 · +1 more | EDGAR |
| 2026-03-20 | 4 | INSMED Inc (INSM) | Option exercise (M): 6,259 @ $30.46 · Option exercise (M): 4,440 @ $17.16 · Sale (S): 1,629 @ $142.17 · Sale (S): 4,537 @ $143.42 · Sale (S): 4,533 @ $144.11 · Option exercise (M): 6,259 (derivative) @ $0 · +1 more | EDGAR |
| 2026-03-05 | 4 | INSMED Inc (INSM) | Option exercise (M): 6,259 @ $30.46 · Option exercise (M): 4,440 @ $17.16 · Sale (S): 2,083 @ $144.23 · Sale (S): 2,589 @ $145.27 · Sale (S): 3,899 @ $146.66 · Sale (S): 2,128 @ $147.54 · +2 more | EDGAR |
| 2026-02-23 | 4 | INSMED Inc (INSM) | Option exercise (M): 6,259 @ $30.46 · Option exercise (M): 4,440 @ $17.16 · Sale (S): 1,988 @ $149.17 · Sale (S): 1,891 @ $150.10 · Sale (S): 3,413 @ $151.12 · Sale (S): 2,377 @ $151.92 · +3 more | EDGAR |
| 2026-02-11 | 4 | INSMED Inc (INSM) | Option exercise (M): 4,440 @ $17.16 · Option exercise (M): 6,259 @ $30.46 · Sale (S): 4,888 @ $147.17 · Sale (S): 7,221 @ $148.02 · Sale (S): 1,287 @ $148.83 · Option exercise (M): 4,440 (derivative) @ $0 · +1 more | EDGAR |
| 2026-02-04 | 4 | INSMED Inc (INSM) | Sale (S): 3,009 @ $156.34 | EDGAR |
| 2026-01-22 | 4 | INSMED Inc (INSM) | Option exercise (M): 6,259 @ $30.46 · Option exercise (M): 4,440 @ $17.16 · Sale (S): 1,006 @ $156.80 · Sale (S): 1,243 @ $158.37 · Sale (S): 5,967 @ $158.99 · Sale (S): 2,229 @ $159.85 · +3 more | EDGAR |
| 2026-01-13 | 4 | INSMED Inc (INSM) | Option exercise (M): 6,259 @ $30.46 · Option exercise (M): 4,440 @ $17.16 · Sale (S): 3,974 @ $167.73 · Sale (S): 7,176 @ $168.63 · Sale (S): 6,996 @ $169.57 · Sale (S): 160 @ $170.24 · +5 more | EDGAR |
| 2026-01-09 | 4 | NewAmsterdam Pharma Co N.V. (NAMS) | Grant/award (A): 3,400 · Grant/award (A): 15,300 (derivative) @ $0 | EDGAR |
| 2026-01-08 | 4 | INSMED Inc (INSM) | Sale (S): 4,096 @ $173.33 · Sale (S): 2,357 @ $175.07 · Sale (S): 3,223 @ $174.17 | EDGAR |
| 2026-01-06 | 4 | INSMED Inc (INSM) | Grant/award (A): 21,172 · Grant/award (A): 110,400 (derivative) @ $0 | EDGAR |
| 2025-12-19 | 4 | INSMED Inc (INSM) | Option exercise (M): 4,440 @ $17.16 · Option exercise (M): 6,259 @ $30.46 · Sale (S): 350 @ $162.26 · Sale (S): 1,465 @ $163.19 · Sale (S): 447 @ $164.24 · Sale (S): 697 @ $165.21 · +8 more | EDGAR |
| 2025-12-05 | 4 | INSMED Inc (INSM) | Option exercise (M): 6,259 @ $30.46 · Option exercise (M): 4,440 @ $17.16 · Sale (S): 4,516 @ $204.62 · Sale (S): 2,222 @ $205.66 · Sale (S): 2,921 @ $206.49 · Sale (S): 1,040 @ $207.42 · +2 more | EDGAR |
| 2025-08-20 | 4 | INSMED Inc (INSM) | Option exercise (M): 6,865 @ $10.85 · Sale (S): 2,968 @ $127.59 · Sale (S): 2,481 @ $128.76 · Sale (S): 1,416 @ $129.47 · Option exercise (M): 6,865 (derivative) @ $0 | EDGAR |
| 2025-08-06 | 4 | INSMED Inc (INSM) | Option exercise (M): 6,830 @ $10.85 · Sale (S): 1,693 @ $108.80 · Sale (S): 3,199 @ $109.68 · Sale (S): 1,938 @ $110.91 · Option exercise (M): 6,830 (derivative) @ $0 | EDGAR |
| 2025-07-15 | 4 | INSMED Inc (INSM) | Option exercise (M): 6,830 @ $10.85 · Sale (S): 2,168 @ $101.71 · Sale (S): 4,492 @ $102.66 · Sale (S): 170 @ $103.32 · Option exercise (M): 6,830 (derivative) @ $0 | EDGAR |
| 2025-07-02 | 4 | INSMED Inc (INSM) | Option exercise (M): 6,830 @ $10.85 · Sale (S): 3,666 @ $97.73 · Sale (S): 2,349 @ $98.83 · Sale (S): 815 @ $99.61 · Option exercise (M): 6,830 (derivative) @ $0 | EDGAR |
| 2025-06-18 | 4 | INSMED Inc (INSM) | Sale (S): 442 @ $98.51 · Sale (S): 1,558 @ $99.65 · Sale (S): 2,300 @ $100.70 · Sale (S): 904 @ $101.39 · Option exercise (M): 129,805 @ $10.85 · Sale (S): 7,000 @ $98.50 · +4 more | EDGAR |
| 2025-06-04 | 4 | INSMED Inc (INSM) | Option exercise (M): 6,830 @ $10.85 · Sale (S): 1,000 @ $70.23 · Sale (S): 4,400 @ $71.35 · Sale (S): 1,430 @ $71.94 · Sale (S): 5,472 @ $71.50 · Option exercise (M): 6,830 (derivative) @ $0 | EDGAR |
| 2025-05-22 | 4 | INSMED Inc (INSM) | Sale (S): 9,489 @ $66.87 · Sale (S): 4,480 @ $67.96 · Sale (S): 7,088 @ $68.49 · Option exercise (M): 6,830 @ $10.85 · Sale (S): 2,863 @ $66.90 · Sale (S): 2,251 @ $68.13 · +2 more | EDGAR |
| 2025-05-19 | 4 | INSMED Inc (INSM) | Grant/award (A): 22,314 @ $0 · Grant/award (A): 108,380 (derivative) @ $0 | EDGAR |
| 2025-05-15 | 4 | INSMED Inc (INSM) | Sale (S): 9,743 @ $66.40 · Sale (S): 7,699 @ $67.70 · Sale (S): 3,771 @ $65.61 | EDGAR |
| 2025-05-02 | 4 | INSMED Inc (INSM) | Option exercise (M): 6,830 @ $10.85 · Sale (S): 2,629 @ $72.24 · Sale (S): 4,201 @ $72.78 · Option exercise (M): 6,830 (derivative) @ $0 | EDGAR |
| 2025-04-16 | 4 | INSMED Inc (INSM) | Option exercise (M): 6,830 @ $10.85 · Sale (S): 3,334 @ $69.62 · Sale (S): 2,896 @ $70.54 · Sale (S): 600 @ $71.30 · Option exercise (M): 6,830 (derivative) @ $0 | EDGAR |
| 2025-04-03 | 4 | INSMED Inc (INSM) | Option exercise (M): 6,830 @ $10.85 · Sale (S): 3,021 @ $72.29 · Sale (S): 772 @ $73.44 · Sale (S): 2,232 @ $74.78 · Sale (S): 805 @ $75.26 · Option exercise (M): 6,830 (derivative) @ $0 | EDGAR |
| 2025-03-19 | 4 | INSMED Inc (INSM) | Option exercise (M): 18,750 @ $22.76 · Sale (S): 4,727 @ $75.91 · Sale (S): 5,907 @ $76.87 · Sale (S): 8,116 @ $77.79 · Option exercise (M): 6,830 @ $10.85 · Sale (S): 2,023 @ $76 · +4 more | EDGAR |
| 2025-03-05 | 4 | INSMED Inc (INSM) | Option exercise (M): 18,750 @ $22.76 · Sale (S): 7,317 @ $76.24 · Sale (S): 758 @ $77.75 · Sale (S): 7,763 @ $78.61 · Sale (S): 2,785 @ $79.43 · Sale (S): 127 @ $80.90 · +8 more | EDGAR |
| 2025-02-20 | 4 | INSMED Inc (INSM) | Option exercise (M): 18,750 @ $22.76 · Sale (S): 1,253 @ $79.95 · Sale (S): 16,743 @ $81.08 · Sale (S): 754 @ $81.67 · Option exercise (M): 6,830 @ $10.85 · Sale (S): 456 @ $80 · +4 more | EDGAR |
| 2025-02-07 | 4 | INSMED Inc (INSM) | Grant/award (A): 153,710 @ $0 · Sale (S): 79,350 @ $80.90 | EDGAR |
| 2025-02-05 | 4 | INSMED Inc (INSM) | Option exercise (M): 18,750 @ $22.76 · Sale (S): 241 @ $75.25 · Sale (S): 1,872 @ $76.35 · Sale (S): 9,869 @ $77.97 · Sale (S): 6,768 @ $78.44 · Option exercise (M): 6,830 @ $10.85 · +6 more | EDGAR |
| 2025-01-16 | 4 | INSMED Inc (INSM) | Option exercise (M): 18,750 @ $22.76 · Sale (S): 6,636 @ $69.39 · Sale (S): 22,696 @ $70.32 · Sale (S): 2,473 @ $71.05 · Option exercise (M): 6,830 @ $10.85 · Sale (S): 1,499 @ $69.40 · +4 more | EDGAR |
| 2025-01-10 | 4 | INSMED Inc (INSM) | Sale (S): 8,218 @ $66.02 · Sale (S): 3,999 @ $65.96 · Grant/award (A): 22,824 · Sale (S): 2,978 @ $63.36 · Grant/award (A): 109,490 (derivative) @ $0 | EDGAR |
| 2025-01-08 | 4 | NewAmsterdam Pharma Co N.V. (NAMS) | Grant/award (A): 6,960 · Grant/award (A): 32,500 (derivative) @ $0 | EDGAR |
| 2025-01-03 | 4 | INSMED Inc (INSM) | Option exercise (M): 18,750 @ $22.76 · Sale (S): 18,750 @ $69.84 · Option exercise (M): 6,830 @ $10.85 · Sale (S): 6,830 @ $69.86 · Option exercise (M): 18,750 (derivative) @ $0 · Option exercise (M): 6,830 (derivative) @ $0 | EDGAR |
| 2024-12-20 | 4 | INSMED Inc (INSM) | Option exercise (M): 18,750 @ $22.76 · Sale (S): 13,162 @ $69.65 · Sale (S): 5,588 @ $70.52 · Option exercise (M): 6,830 @ $10.85 · Sale (S): 5,240 @ $69.71 · Sale (S): 1,590 @ $70.61 · +2 more | EDGAR |
| 2024-12-13 | 4 | INSMED Inc (INSM) | Option exercise (M): 18,750 @ $22.76 · Sale (S): 11,504 @ $72.58 · Sale (S): 6,847 @ $73.56 · Sale (S): 399 @ $74.23 · Option exercise (M): 6,830 @ $10.85 · Sale (S): 4,087 @ $72.57 · +4 more | EDGAR |
| 2024-05-15 | 4 | INSMED Inc (INSM) | Grant/award (A): 42,707 · Sale (S): 22,198 @ $25.52 · Grant/award (A): 209,320 (derivative) @ $0 | EDGAR |
| 2024-02-29 | 4 | INSMED Inc (INSM) | Option exercise (M): 50,000 @ $12.58 · Option exercise (M): 50,000 (derivative) @ $0 | EDGAR |
| 2024-01-10 | 4 | INSMED Inc (INSM) | Option exercise (M): 24,951 @ $20.49 · Sale (S): 24,951 @ $29.11 · Option exercise (M): 20,169 @ $20.49 · Sale (S): 20,169 @ $29.88 · Sale (S): 9,887 @ $28.72 · Option exercise (M): 45,120 (derivative) @ $20.49 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-10 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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