SEC Insider Transactions from Smith Michael Alexander.

Last updated: 2026-03-31 21:08 UTC | Total transactions: 82

Smith Michael Alexander, Chief Legal Officer at Insmed Inc. ($INSM), sold about 15.6 million dollars worth of company shares in 29 open market transactions over the last year. His most recent sale occurred on February 24, 2026. These sales rank him 811th among 11,678 individual insiders by total value sold, above the average of 8.6 million dollars per insider and 6.4 transactions. He made no open market purchases in this period.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
March 30, 2026 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer M Stock Option (right to buy) 13989 $0.00 18,561.0000 215,551,896 42.98% 0.01%
March 30, 2026 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer M Common Stock 5649 $17.07 57,520.0000 215,551,896 10.89% 0.00%
March 30, 2026 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer M Common Stock 13989 $27.89 71,509.0000 215,551,896 24.32% 0.01%
March 30, 2026 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 19638 $150.98 51,871.0000 215,551,896 27.46% 0.01%
March 30, 2026 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer M Stock Option (right to buy) 5649 $0.00 8,633.0000 215,551,896 39.55% 0.00%
Feb. 24, 2026 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 15771 $156.53 51,871.0000 215,551,896 23.32% 0.01%
Feb. 24, 2026 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer M Stock Option (right to buy) 20248 $0.00 14,282.0000 215,551,896 58.64% 0.01%
Feb. 24, 2026 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer M Common Stock 20248 $17.07 76,645.0000 215,551,896 35.90% 0.01%
Feb. 24, 2026 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 4852 $153.93 71,793.0000 215,551,896 6.33% 0.00%
Feb. 24, 2026 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 4151 $155.06 67,642.0000 215,551,896 5.78% 0.00%
Feb. 3, 2026 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 640 $156.27 56,397.0000 213,273,469 1.12% 0.00%
Jan. 6, 2026 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 1396 $173.33 58,799.0000 213,273,469 2.32% 0.00%
Jan. 8, 2026 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 1053 $174.17 57,037.0000 213,273,469 1.81% 0.00%
Jan. 7, 2026 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 709 $175.07 58,090.0000 213,273,469 1.21% 0.00%
Jan. 2, 2026 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer A Common Stock 5293 $0.00 60,195.0000 213,273,469 9.64% 0.00%
Jan. 2, 2026 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer A Stock Option (right to buy) 27600 $0.00 27,600.0000 213,273,469 9999.99% 0.01%
Nov. 3, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 3243 $184.91 61,510.0000 213,273,469 5.01% 0.00%
Nov. 3, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 4032 $183.92 64,753.0000 213,273,469 5.86% 0.00%
Nov. 3, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 4286 $182.60 68,785.0000 213,273,469 5.87% 0.00%
Nov. 3, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 1342 $181.01 80,690.0000 213,273,469 1.64% 0.00%
Nov. 3, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer M Common Stock 27130 $23.75 82,032.0000 213,273,469 49.42% 0.01%
Nov. 3, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 7619 $181.88 73,071.0000 213,273,469 9.44% 0.00%
Nov. 3, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer M Stock Option (right to buy) 27130 $0.00 0.0000 213,273,469 100.00% 0.01%
Nov. 3, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 1572 $187.15 56,302.0000 213,273,469 2.72% 0.00%
Nov. 3, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 1400 $187.97 54,902.0000 213,273,469 2.49% 0.00%
Nov. 3, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 3636 $185.93 57,874.0000 213,273,469 5.91% 0.00%
Sept. 2, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 1100 $142.06 76,720.0000 180,999,350 1.41% 0.00%
Sept. 2, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer M Common Stock 12780 $30.46 79,174.0000 180,999,350 19.25% 0.01%
Sept. 2, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer M Stock Option (right to buy) 12780 $0.00 0.0000 180,999,350 100.00% 0.01%
Sept. 2, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 1183 $145.89 54,902.0000 180,999,350 2.11% 0.00%
Sept. 2, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 4944 $145.18 56,085.0000 180,999,350 8.10% 0.00%
Sept. 2, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 8300 $144.16 61,029.0000 180,999,350 11.97% 0.00%
Sept. 2, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 7391 $143.16 69,329.0000 180,999,350 9.63% 0.00%
Sept. 2, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 1354 $141.16 77,820.0000 180,999,350 1.71% 0.00%
July 15, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 933 $102.51 66,394.0000 180,999,350 1.39% 0.00%
July 11, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 748 $96.41 67,327.0000 180,999,350 1.10% 0.00%
June 5, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 1879 $73.50 67,718.0000 180,999,350 2.70% 0.00%
June 3, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 1448 $71.50 69,597.0000 180,999,350 2.04% 0.00%
May 30, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 20000 $70.00 71,045.0000 180,999,350 21.97% 0.01%
May 30, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 6327 $68.56 91,045.0000 180,999,350 6.50% 0.00%
May 15, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer A Stock Option (right to buy) 27100 $0.00 27,100.0000 180,999,350 9999.99% 0.01%
May 15, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer A Common Stock 5578 $0.00 97,372.0000 180,999,350 6.08% 0.00%
May 14, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 409 $65.61 91,794.0000 180,999,350 0.44% 0.00%
May 13, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 4407 $67.81 92,203.0000 180,999,350 4.56% 0.00%
Feb. 5, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer A Common Stock 47295 $0.00 117,260.0000 0 67.60% 0.00%
Feb. 6, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 20650 $80.90 96,610.0000 0 17.61% 0.00%
Jan. 8, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer A Stock Option (right to buy) 27370 $0.00 27,370.0000 0 9999.99% 0.00%
Jan. 7, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 2306 $65.98 65,642.0000 0 3.39% 0.00%
Jan. 8, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 1064 $66.21 64,578.0000 0 1.62% 0.00%
Jan. 8, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer A Common Stock 5706 $0.00 70,284.0000 0 8.84% 0.00%
Jan. 10, 2025 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 319 $63.38 69,965.0000 0 0.45% 0.00%
Sept. 13, 2024 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 9000 $74.75 67,856.0000 0 11.71% 0.00%
Sept. 13, 2024 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer M Common Stock 7000 $22.76 95,727.0000 0 7.89% 0.00%
Sept. 13, 2024 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 18871 $74.16 76,856.0000 0 19.71% 0.00%
Sept. 13, 2024 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer M Stock Option (right to buy) 7000 $0.00 0.0000 0 100.00% 0.00%
Aug. 12, 2024 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer M Stock Option (right to buy) 41640 $0.00 0.0000 0 100.00% 0.00%
Aug. 12, 2024 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer M Common Stock 11900 $17.16 100,627.0000 0 13.41% 0.00%
Aug. 12, 2024 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer M Common Stock 41640 $13.91 142,267.0000 0 41.38% 0.00%
Aug. 12, 2024 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer M Common Stock 34530 $17.07 176,797.0000 0 24.27% 0.00%
Aug. 12, 2024 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 67655 $72.75 109,142.0000 0 38.27% 0.00%
Aug. 12, 2024 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 20415 $73.65 88,727.0000 0 18.70% 0.00%
Aug. 12, 2024 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer M Stock Option (right to buy) 11900 $0.00 0.0000 0 100.00% 0.00%
Aug. 12, 2024 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer M Stock Option (right to buy) 34530 $0.00 34,530.0000 0 50.00% 0.00%
July 8, 2024 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer F Common Stock 730 $70.05 88,727.0000 0 0.82% 0.00%
May 28, 2024 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer M Stock Option (right to buy) 14810 $0.00 0.0000 0 100.00% 0.00%
May 28, 2024 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer M Common Stock 7000 $16.07 101,579.0000 0 7.40% 0.00%
May 28, 2024 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer M Common Stock 10000 $16.16 111,579.0000 0 9.84% 0.00%
May 28, 2024 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer M Common Stock 3691 $10.85 115,270.0000 0 3.31% 0.00%
May 28, 2024 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer M Common Stock 3470 $11.38 118,740.0000 0 3.01% 0.00%
May 28, 2024 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer M Common Stock 14810 $13.67 133,550.0000 0 12.47% 0.00%
May 28, 2024 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 44722 $49.53 88,828.0000 0 33.49% 0.00%
May 28, 2024 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer M Stock Option (right to buy) 7000 $0.00 0.0000 0 100.00% 0.00%
May 28, 2024 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer M Stock Option (right to buy) 10000 $0.00 0.0000 0 100.00% 0.00%
May 28, 2024 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer M Stock Option (right to buy) 3691 $0.00 0.0000 0 100.00% 0.00%
May 28, 2024 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer M Stock Option (right to buy) 3470 $0.00 0.0000 0 100.00% 0.00%
May 13, 2024 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer A Stock Option (right to buy) 65230 $0.00 65,230.0000 0 9999.99% 0.00%
May 13, 2024 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer A Common Stock 13308 $0.00 99,672.0000 0 15.41% 0.00%
May 14, 2024 INSMED Inc $INSM Smith Michael Alexander Chief Legal Officer S Common Stock 5093 $25.40 94,579.0000 0 5.11% 0.00%
Jan. 9, 2024 INSMED Inc $INSM Smith Michael Alexander General Counsel, Senior VP S Common Stock 2373 $28.76 86,364.0000 0 2.67% 0.00%
Jan. 4, 2024 INSMED Inc $INSM Smith Michael Alexander General Counsel, Senior VP A Stock Option (right to buy) 58260 $0.00 58,260.0000 0 9999.99% 0.00%
Jan. 4, 2024 INSMED Inc $INSM Smith Michael Alexander General Counsel, Senior VP A Common Stock 11800 $0.00 89,364.0000 0 15.21% 0.00%
Jan. 5, 2024 INSMED Inc $INSM Smith Michael Alexander General Counsel, Senior VP S Common Stock 627 $29.31 88,737.0000 0 0.70% 0.00%