Chief Financial Officer · INSMED Inc (INSM)

Sara Bonstein

A named executive officer of INSMED in every fiscal year CompBrief holds from FY2020 to FY2025. Every figure below is printed as the company filed it and cited to the filing it came from.

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Total disclosed compensation, FY2025

$4,617,429

FY2024: $4,012,005

4th of 5 named executive officers at Insmed by FY2025 total.

5 named officers on file for INSMED, FY2025

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What this number hides

The filing gives the total. INSMED’s full Executive Compensation Report gives every award, the disclosed peer set and what the total leaves out — the pair adds the board’s.

Compensation figures as of the proxy filed April 1, 2026 (DEF 14A). Insider transactions since that proxy, current to 2026-11-07.

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Sara Bonstein compensation by year

INSMED Summary Compensation Table · all 6 fiscal years held
In US dollars, as INSMED reports it. Most recent year shaded. Totals are the company’s disclosed totals.
ComponentFY2020FY2021FY2022FY2023FY2024FY2025
Salary$386,615$460,320$477,580$511,010$530,170$583,190
Bonus$75,000$0$0$0$0$0
Stock awards$0$687,489$687,487$1,312,464$749,990$874,966
Option awards$2,024,075$2,062,368$2,061,581$2,436,713$2,250,057$2,624,787
Non-equity incentive$224,700$227,000$191,100$276,000$462,250$510,292
Pension and deferred compensation$0$0$0$0$0$0
All other$11,400$14,900$15,500$23,395$19,538$24,194
Total$2,721,790$3,452,077$3,433,248$4,559,582$4,012,005$4,617,429

Each year as stated in that year's proxy. A dash means the company reported no figure in that column. Source: INSMED Inc DEF 14A filed April 1, 2026, accession 0001104506-26-000022, and prior-year filings.

How this page was built: the INSMED Inc filed document, accession 0001104506-26-000022. Every figure is read from that document and cited to the page and table it appears in. Filed April 1, 2026.

$2.7M
$3.5M
$3.4M
$4.6M
$4.0M
$4.6M
FY20
FY21
FY22
FY23
FY24
FY25
SalaryBonusNon-equity incentiveStock awardsOption awardsAll other

Equity holdings

unvested awards at FY2025 year-end
TypeUnvested unitsValue at year-endExercise price
RSU71,989$12,528,966—
PSU3,237$563,367—
Option31,610—$67.22
Option14,160—$19.74
Option44,475—$25.83
Option31,930—$65.72
Option59,404—$18.95
Option39,725—$29.13
Option7,855—$26.43
Option11,870—$17.07

Per the Outstanding Equity Awards at Fiscal Year-End table in INSMED Inc's FY2025 proxy; value at the fiscal year-end close, as the company printed it.

Insider transactions since the last proxy

2 Form 4 lines since the FY2025 proxy (filed April 1, 2026)
current to 2026-11-07 · updated nightly
DateTransactionPlanSharesPriceHeld after
2026-06-03Sale—2,404$102.2769,082
2026-05-13Sale—8,272$116.1871,486

The 2 most recent of 2 lines, each as reported on the Form 4. "10b5-1" marks a trade the filing reports under a pre-arranged trading plan. View every Form 4 filing on EDGAR →

Change-in-control & termination

estimated payments INSMED discloses, by trigger · FY2025
TriggerCash severanceAccelerated equityBenefits continuationTotal as disclosed
Change in control and involuntary termination$1,312,178$47,259,693$150$48,863,616
Resignation for good reason, no change in control$583,190$24,699,781$100$25,574,666
Change in control and resignation for good reason$1,312,178$47,259,693$150$48,863,616
Involuntary termination without cause$583,190$24,699,781$100$25,574,666

Per the Potential Payments Upon Termination or Change in Control table in INSMED Inc's FY2025 proxy. Estimates as the company printed them; a dash means it printed no figure.

INSMED’s named executive officers, FY2025

as the company reported each
Named executive officerRoleFY2025 total
William LewisChair and Chief Executive Officer$14,467,393
Martina FlammerChief Medical Officer$4,716,513
Roger AdsettChief Operating Officer$4,691,405
Sara Bonstein · this pageChief Financial Officer$4,617,429
Michael SmithChief Legal Officer$4,138,160

The full INSMED compensation record

free company brief

This page is one person within INSMED's record. The company brief lists every named executive, each linking to their own page.

Peer companies

named in the INSMED proxy · each links to its own free brief

Compensation, the day it’s disclosed

The CompBrief Daily Digest lists the newest executive and director compensation disclosures as companies file them. Or order INSMED's full Executive Compensation Report with peer benchmarking.

How this record is built

Every figure on this page is one figure from a public SEC filing, printed as the filing states it and cited to the document. Compensation totals are INSMED's own disclosed totals, not summed by Velarion. Insider transactions are read from Form 4 filings and cover every line filed since the most recent proxy. Nothing is estimated by Velarion; where the company does not disclose a value the cell reads "—", and a section appears only where the company discloses the data. Corrections: records@velarion.ai.

Sara Bonstein's compensation dossier