William Lewis is Chair and Chief Executive Officer of INSMED Inc (INSM). The company reported total compensation of $14,467,393 for fiscal year 2025.
| Salary | $854,550 |
|---|---|
| Bonus | $0 |
| Stock awards | $2,999,940 |
| Option awards | $9,000,033 |
| Non-equity incentive plan | $1,495,463 |
| Pension and non-qualified deferred compensation | $0 |
| All other compensation | $117,407 |
| Total | $14,467,393 |
A dash means the company reported no figure in that column; 0 means it reported zero. Figures are as printed, without adjustment.
Cited to the compensation disclosure INSMED Inc filed April 1, 2026, accession 0001104506-26-000022.
| Fiscal year | Role | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension / NQDC | All other | Total |
|---|---|---|---|---|---|---|---|---|---|
| FY2025 | Chair and Chief Executive Officer | $854,550 | $0 | $2,999,940 | $9,000,033 | $1,495,463 | $0 | $117,407 | $14,467,393 |
| FY2024 | CEO | $810,000 | — | $2,206,246 | $6,618,734 | $1,215,000 | — | $93,591 | $10,943,571 |
| FY2023 | CEO | $780,000 | — | $2,206,232 | $6,616,654 | $702,000 | — | $106,374 | $10,411,260 |
Totals as disclosed in each year's own compensation disclosure for INSMED Inc.
| Peer-group chief executive median | $17,991,247 |
|---|---|
| Difference from that median | $-3,523,853 |
| Percentile within the disclosed peer group | 33rd |
| Peers with a disclosed figure | 11 |
Medians and percentiles are computed across the peer group INSMED Inc discloses in its own compensation disclosure.
| Named executive officer | Role | FY2025 total |
|---|---|---|
| William Lewis this page | Chair and Chief Executive Officer | $14,467,393 |
| Martina Flammer | Chief Medical Officer | $4,716,513 |
| Roger Adsett | Chief Operating Officer | $4,691,405 |
| Sara Bonstein | Chief Financial Officer | $4,617,429 |
| Michael Smith | Chief Legal Officer | $4,138,160 |
The company's named executive officers for fiscal year 2025, and what it reported for each. See the full INSMED Inc compensation brief.
William Lewis's compensation sits inside INSMED Inc's full executive and board picture — the peer group, pay against peers, incentive design and the board itself.