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INSMED Inc — Director's Dealing 2025
Dec 3, 2025
30150_dirs_2025-12-03_eac0ec6a-889b-49ac-adea-05b0b3f2bb16.zip
Director's Dealing
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SEC Form 4 — Statement of Changes in Beneficial Ownership
Issuer: INSMED Inc (INSM)
CIK: 0001104506
Period of Report: 2025-12-01
Reporting Person: Flammer Martina M.D. (Chief Medical Officer)
Non-Derivative Transactions
| Date | Security | Code | Shares | Price | A/D | Holdings After | Ownership |
|---|---|---|---|---|---|---|---|
| 2025-12-01 | Common Stock | M | 8895 | $25.83 | Acquired | 92006 | Direct |
| 2025-12-01 | Common Stock | S | 1450 | $205.98 | Disposed | 90556 | Direct |
| 2025-12-01 | Common Stock | S | 5886 | $207.03 | Disposed | 84670 | Direct |
| 2025-12-01 | Common Stock | S | 1559 | $207.73 | Disposed | 83111 | Direct |
Derivative Transactions
| Date | Security | Exercise Price | Code | Shares | A/D | Expiration | Underlying | Ownership |
|---|---|---|---|---|---|---|---|---|
| 2025-12-01 | Stock Option (right to buy) | $25.83 | M | 8895 | Disposed | 2034-05-13 | Common Stock (8895) | Direct |
Footnotes
F1: This transaction was effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on February 27, 2025, in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.
F2: This is the weighted average sales price representing 1,450 shares sold at prices ranging from $205.45 to $206.39 per share. The Reporting Person undertakes to provide to the SEC staff, the issuer, or a security holder of the issuer the number of shares sold at each price within the price range upon request.
F3: This is the weighted average sales price representing 5,886 shares sold at prices ranging from $206.48 to $207.47 per share. The Reporting Person undertakes to provide to the SEC staff, the issuer, or a security holder of the issuer the number of shares sold at each price within the price range upon request.
F4: This is the weighted average sales price representing 1,559 shares sold at prices ranging from $207.49 to $208.17 per share. The Reporting Person undertakes to provide to the SEC staff, the issuer, or a security holder of the issuer the number of shares sold at each price within the price range upon request.
F5: The options become exercisable based on the following vesting schedule: 25% vest on the first day of the first month following the first anniversary of the date of grant (the Initial Vesting Date) and 12.5% vest on each sixth month anniversary date thereafter through the fourth anniversary of the Initial Vesting Date.