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$INSM
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Company Executives

$INSM Management Team

Dr. Martina Flammer

Chief Medical Officer

Age 61
Compensation $4.115M USD
Sex Female

Mr. Michael Smith

Chief Legal Officer

Age 48
Compensation -
Sex Male

Mr. William Lewis

Chairman of the Board

Chief Executive Officer

Age 56
Compensation $10.94M USD
Sex Male

Ms. Sara Bonstein

Chief Financial Officer

Age 44
Compensation $4.012M USD
Sex Female

Mr. Roger Adsett

Chief Operating Officer

Age 58
Compensation $4.256M USD
Sex Male

Ms. S. Nicole Schaeffer

Chief People Strategy Officer

Age 56
Compensation $2.661M USD
Sex Female

Mr. Bryan Dunn

Vice President

Investor Relations

Age -
Compensation -
Sex Male

Board of Directors

From the proxy statement filed Apr 1, 2026
Directors
8
serving now
Independent
4 of 4
stated in the proxy; 4 not stated
Average tenure
11.6 years
from year joined
CEO also chairs the board
Yes
William H. Lewis
Director Age On board Independent Committees Other public boards 2025 pay Source
Elizabeth McKee Anderson
68 2018
8 years
 Independent
Audit Nominations and Governance · Chair
GSK plc $432,864
Clarissa Desjardins, Ph.D.
59 2019
7 years
 Independent
Science and Technology · Chair
None stated $425,000
David W.J. McGirr Leaving at the meeting
71 2013
13 years
 Independent
Audit · Chair
None stated $430,000
David R. Brennan
Lead independent director
 72 2014
12 years
 Not stated
Compensation · Chair
None stated $465,000
Leo Lee
56 2018
8 years
 Independent
Compensation Science and Technology
None stated $425,000
William H. Lewis
Board chair, CEO
 57 2012
14 years
 Not stated None stated NewAmsterdam Pharma Company N.V. Paid as CEO
Carol A. Schafer
62 2020
6 years
 Not stated
Audit Nominations and Governance
Kura Oncology, Inc. $427,500
Melvin Sharoky, M.D.
75 2001
25 years
 Not stated
Nominations and Governance Science and Technology
None stated $425,000

Each director opens the passage of the proxy that names them. "Not stated" means the proxy does not say; it never means "no". Pay is the proxy's Director Compensation table; the CEO is paid as an executive.

Related-party transactions

No related-party transactions disclosed

The proxy filed Apr 1, 2026 states there were none.

Read it in the proxy

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