InsiderTrades

Form 4 for INSM INSMED Inc

Accepted 2026-01-06 00:00:00 ET · period of report 2026-01-02 · accession 0001402051-26-000003 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
D 2026-01-06 2026-01-02 INSM Lewis William COB, CEO, Dir A - Grant — +21.2K 325.1K +7% —
D 2026-01-06 2026-01-02 INSM Lewis William COB, CEO, Dir A - Grant $0.00 +110.4K 110.4K New $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-01-02 A A 21,172 — 325,083 D — — (F1) Represents Restricted Stock Units (RSUs), each representing a contingent right to receive one share of Common Stock, granted pursuant to the Company's Amended and Restated 2019 Incentive Plan, as amended. The RSUs vest as follows: 25% on the first day of the first month following the first anniversary of the date of grant (the Initial Vesting Date) and 25% on each anniversary of the Initial Vesting Date until fully vested. (F2) Each RSU was granted on January 2, 2026 for no consideration.
2 Derivative Stock Option (right to buy) 2026-01-02 A A 110,400 $0.00 110,400 D $177.12 · — to 2036-01-02 110,400 Common Stock (F3) These stock options were granted under the Company's Amended and Restated 2019 Incentive Plan, as amended. The options become exercisable based on the following vesting schedule: 25% vest on the Initial Vesting Date and an additional 12.5% vest every six months thereafter until fully vested.