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.
| 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% |