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INSM · INSMED Inc · Proposed Sales

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$121.16 +3.09 (+2.62%) At close · Nov 13 Play latest call Q3 2026 earnings call transcript
Russell 1000 member Rebalance outlook locked
Market Cap
$26.58B
Shares
219.38M
Volume · Nov 13 1.54M Avg daily vol (3M) 2.77M

Notices of intent to sell restricted or control shares, filed with the SEC on Form 144 by insiders and affiliates. A Form 144 signals a planned sale — it does not confirm the shares were actually sold.

Filed Seller Shares
2026-09-10 Brennan David R 25,000
2026-04-06 William Lewis 10,699
2026-04-01 Roger Adsett 88,060
2026-03-30 Michael Smith 19,638
2026-03-19 William Lewis 10,699
2026-03-05 William Lewis 10,699
2026-02-24 Michael Smith 24,774
2026-02-19 William Lewis 10,699
2026-02-09 William Lewis 13,396
2026-02-05 Martina Flammer 869
2026-02-03 Sara Bonstein 748
2026-02-03 William Lewis 3,009
2026-02-03 Michael Smith 640
2026-02-03 Martina Flammer 795
2026-02-03 Roger Adsett 791
2026-02-02 Martina Flammer 7,982
2026-01-20 William Lewis 10,699
2026-01-12 William Lewis 19,215
2026-01-08 Michael Smith 1,053
2026-01-08 Martina Flammer 5,138
2026-01-08 Roger Adsett 2,059
2026-01-08 Martina Flammer 1,660
2026-01-08 William Lewis 3,223
2026-01-08 Sara Bonstein 1,447
2026-01-07 William Lewis 2,357
2026-01-07 Roger Adsett 802
2026-01-07 Martina Flammer 1,434
2026-01-07 Sara Bonstein 1,678
2026-01-07 Michael Smith 709
2026-01-06 Roger Adsett 1,429
2026-01-06 Michael Smith 1,396
2026-01-06 Martina Flammer 1,615
2026-01-06 William Lewis 4,096
2026-01-06 Sara Bonstein 1,517
2026-01-05 Martina Flammer 20,873
2026-01-02 Stacey Nicole Schaeffer Orlov 87,290
2025-12-18 William Lewis 10,699
2025-12-05 MELVIN SHAROKY 20,000
2025-12-04 William Lewis 10,699
2025-12-01 Martina Flammer 8,895
2025-11-24 ANDERSON ELIZABETH M 5,000
2025-11-17 Leo Lee 75,000
2025-11-13 ANDERSON ELIZABETH M 10,000
2025-11-12 Martina Flammer 31,226
2025-11-12 Stacey Nicole Schaeffer Orlov 30,000
2025-11-03 Michael A Smith 27,130
2025-09-12 Schaeffer Orlov S Nicole 76,520
2025-09-12 SHAROKY MELVIN MD 10,000
2025-09-02 Flammer Martina M.D. 186,648
2025-09-02 Smith Michael Alexander 24,272
Showing 1–50 of 200 filings
Key facts CIK 1104506 CUSIP 457669307 13F (30d) 550 filings 499 filers Visit website Investor relations