INSMED Inc 4

Insmed Inc. Chief Medical Officer Martina Flammer, M.D. exercised 12,302 stock options and sold 12,302 shares of INSM common stock on July 6, 2026 under a Rule 10b5‑1 plan, reducing her direct holdings to 60,486 shares.

On July 6, 2026, Insmed Inc. Chief Medical Officer Martina Flammer, M.D. exercised two tranches of stock options to acquire a total of 12,302 shares of common stock (7,945 shares at a $29.13 strike price and 4,357 shares at a $19.74 strike price) and on the same day sold 12,302 shares of common stock in two open‑market transactions under a pre‑arranged Rule 10b5‑1 trading plan—4,854 shares at a weighted average price of $109.02 and 7,448 shares at a weighted average price of $110.60—resulting in a net reduction of her directly held common stock from 72,788 to 60,486 shares, while the related options positions were fully exercised and reduced to zero. The sales appear structured as a cashless exercise and sale, with the options having previously vested according to a standard 4‑year vesting schedule, and the filing describes price ranges for the weighted average sale prices and confirms the existence of the 10b5‑1 plan adopted on February 27, 2025.

Filing Facts

CIK

1104506

Ticker

INSM

Form

4

Source Type

fda

Accession

0001796960-26-000018

Alert Tier

6