Insider at

04

Insider transactions

05
0 buys (P) 9 sells (S) Net: $-21,113,483 + 48 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

48 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Jan. 2, 2026 INSM S 10b5-1 31,030 $174.28 $5,407,908 98,014 Direct -24.05% Disposed -39.6% (price as of 2026-10-06)
Jan. 2, 2026 INSM S 10b5-1 34,103 $175.17 $5,973,823 63,911 Direct -34.79% Disposed -39.9% (price as of 2026-10-06)
Jan. 2, 2026 INSM S 10b5-1 12,832 $176.08 $2,259,459 51,079 Direct -20.08% Disposed -40.2% (price as of 2026-10-06)
Jan. 2, 2026 INSM S 10b5-1 9,125 $177.17 $1,616,676 41,954 Direct -17.86% Disposed -40.6% (price as of 2026-10-06)
Jan. 2, 2026 INSM S 10b5-1 200 $177.78 $35,556 41,754 Direct -0.48% Disposed -40.8% (price as of 2026-10-06)
Nov. 12, 2025 INSM S 4,078 $192.45 $784,811 62,383 Direct -6.14% Disposed -45.3% (price as of 2026-10-06)
Nov. 12, 2025 INSM S 6,575 $193.64 $1,273,183 55,808 Direct -10.54% Disposed -45.7% (price as of 2026-10-06)
Nov. 12, 2025 INSM S 19,183 $194.44 $3,729,943 36,625 Direct -34.37% Disposed -45.9% (price as of 2026-10-06)
Nov. 12, 2025 INSM S 164 $195.88 $32,124 36,461 Direct -0.45% Disposed -46.3% (price as of 2026-10-06)
Sept. 12, 2025 INSM S 10b5-1 32,091 $144.60 $4,640,359 80,890 Direct -28.40% Disposed -27.2% (price as of 2026-10-06)
Sept. 12, 2025 INSM S 10b5-1 30,967 $145.67 $4,510,963 49,923 Direct -38.28% Disposed -27.8% (price as of 2026-10-06)
Sept. 12, 2025 INSM S 10b5-1 7,304 $146.57 $1,070,547 42,619 Direct -14.63% Disposed -28.2% (price as of 2026-10-06)
Sept. 12, 2025 INSM S 10b5-1 6,158 $147.46 $908,059 36,461 Direct -14.45% Disposed -28.6% (price as of 2026-10-06)
Aug. 14, 2025 INSM S 3,554 $126.57 $449,830 86,210 Direct -3.96% Disposed -16.9% (price as of 2026-10-06)
Aug. 14, 2025 INSM S 5,746 $127.71 $733,822 80,464 Direct -6.67% Disposed -17.6% (price as of 2026-10-06)
Aug. 14, 2025 INSM S 700 $128.16 $89,712 79,764 Direct -0.87% Disposed -17.9% (price as of 2026-10-06)
June 11, 2025 INSM S 10b5-1 35,072 $91.68 $3,215,401 153,507 Direct -18.60% Disposed 14.8% (price as of 2026-10-06)
June 11, 2025 INSM S 10b5-1 18,319 $92.73 $1,698,721 135,188 Direct -11.93% Disposed 13.5% (price as of 2026-10-06)
June 11, 2025 INSM S 10b5-1 10,781 $93.48 $1,007,808 124,407 Direct -7.97% Disposed 12.6% (price as of 2026-10-06)
June 11, 2025 INSM S 10b5-1 34,500 $95.49 $3,294,405 89,907 Direct -27.73% Disposed 10.2% (price as of 2026-10-06)
June 11, 2025 INSM S 10b5-1 500 $96.02 $48,010 89,407 Direct -0.56% Disposed 9.6% (price as of 2026-10-06)
June 10, 2025 INSM S 10b5-1 38,300 $88.64 $3,394,912 118,579 Direct -24.41% Disposed 18.7% (price as of 2026-10-06)
June 3, 2025 INSM S 1,642 $71.50 $117,403 118,579 Direct -1.37% Disposed 47.2% (price as of 2026-10-06)
May 14, 2025 INSM S 1,236 $65.61 $81,094 114,643 Direct -1.07% Disposed 60.4% (price as of 2026-10-06)
May 13, 2025 INSM S 4,999 $67.81 $338,982 115,879 Direct -4.14% Disposed 55.2% (price as of 2026-10-06)
Feb. 6, 2025 INSM S 23,500 $80.90 $1,901,150 120,878 Direct -16.28% Disposed 30.1% (price as of 2026-10-06)
Jan. 30, 2025 INSM S 10b5-1 91,140 $80.00 $7,291,200 97,083 Direct -48.42% Disposed 31.5% (price as of 2026-10-06)
Jan. 14, 2025 INSM S 10b5-1 872 $68.72 $59,924 97,083 Direct -0.89% Disposed 53.1% (price as of 2026-10-06)
Jan. 10, 2025 INSM S 965 $63.87 $61,635 101,047 Direct -0.95% Disposed 64.8% (price as of 2026-10-06)
Jan. 10, 2025 INSM S 10b5-1 3,092 $63.62 $196,713 97,955 Direct -3.06% Disposed 65.4% (price as of 2026-10-06)
Jan. 8, 2025 INSM S 1,209 $65.84 $79,601 96,306 Direct -1.24% Disposed 59.8% (price as of 2026-10-06)
Jan. 7, 2025 INSM S 2,596 $65.88 $171,024 97,515 Direct -2.59% Disposed 59.7% (price as of 2026-10-06)
Sept. 10, 2024 INSM S 10b5-1 27,993 $71.37 $1,997,860 109,682 Direct -20.33% Disposed 47.4% (price as of 2026-10-06)
Sept. 10, 2024 INSM S 10b5-1 9,582 $71.88 $688,754 100,100 Direct -8.74% Disposed 46.4% (price as of 2026-10-06)
Aug. 12, 2024 INSM S 9,469 $72.49 $686,408 100,100 Direct -8.64% Disposed 45.2% (price as of 2026-10-06)
June 3, 2024 INSM S 10b5-1 55,000 $55.33 $3,043,150 108,760 Direct -33.59% Disposed 90.2% (price as of 2026-10-06)
May 28, 2024 INSM S 10b5-1 27,500 $49.53 $1,362,075 108,760 Direct -20.18% Disposed 112.5% (price as of 2026-10-06)
May 14, 2024 INSM S 6,508 $25.53 $166,149 108,760 Direct -5.65% Disposed 312.2% (price as of 2026-10-06)
Jan. 9, 2024 INSM S 10b5-1 503 $29.56 $14,869 105,149 Direct -0.48% Disposed 256.0% (price as of 2026-10-06)
Jan. 9, 2024 INSM S 3,165 $28.74 $90,962 101,984 Direct -3.01% Disposed 266.1% (price as of 2026-10-06)
Jan. 5, 2024 INSM S 1,457 $29.28 $42,661 105,149 Direct -1.37% Disposed 259.4% (price as of 2026-10-06)
Dec. 28, 2023 INSM S 10b5-1 22,288 $32.00 $713,216 94,549 Direct -19.08% Disposed 228.8% (price as of 2026-10-06)
May 17, 2023 INSM S 1,972 $18.16 $35,812 93,525 Direct -2.06% Disposed 479.5% (price as of 2026-10-06)
May 16, 2023 INSM S 1,217 $18.45 $22,454 95,497 Direct -1.26% Disposed 470.4% (price as of 2026-10-06)
May 15, 2023 INSM S 1,830 $19.22 $35,173 96,714 Direct -1.86% Disposed 447.5% (price as of 2026-10-06)
Jan. 10, 2023 INSM S 2,435 $17.95 $43,708 72,159 Direct -3.26% Disposed 486.2% (price as of 2026-10-06)
Jan. 5, 2023 INSM S 1,448 $19.73 $28,569 68,262 Direct -2.08% Disposed 433.4% (price as of 2026-10-06)
May 17, 2022 INSM S 1,670 $20.27 $33,851 68,822 Direct -2.37% Disposed 419.1% (price as of 2026-10-06)
May 16, 2022 INSM S 1,114 $18.41 $20,509 70,492 Direct -1.56% Disposed 471.6% (price as of 2026-10-06)
Jan. 11, 2022 INSM S 925 $25.11 $23,227 56,961 Direct -1.60% Disposed 319.1% (price as of 2026-10-06)
Jan. 6, 2022 INSM S 1,612 $26.00 $41,912 48,428 Direct -3.22% Disposed 304.7% (price as of 2026-10-06)
Jan. 5, 2022 INSM S 1,503 $27.61 $41,498 50,040 Direct -2.92% Disposed 281.1% (price as of 2026-10-06)

Showing latest 100 of 158 transactions

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Jan. 2, 2026 INSM Stock Option (right to buy) Common Stock (27,600) $177.12 Jan. 2, 2036 27,600 Acquired
Jan. 2, 2026 INSM Stock Option (right to buy) Common Stock (87,290) $13.91 Jan. 3, 2029 87,290 Disposed
Nov. 12, 2025 INSM Stock Option (right to buy) Common Stock (30,000) $26.46 May 12, 2031 30,000 Disposed
Sept. 12, 2025 INSM Stock Option (right to buy) Common Stock (56,520) $23.75 Jan. 3, 2030 56,520 Disposed
June 11, 2025 INSM Stock Option (right to buy) Common Stock (70,000) $13.91 Jan. 3, 2029 70,000 Disposed
June 10, 2025 INSM Stock Option (right to buy) Common Stock (38,300) $17.16 May 17, 2027 38,300 Disposed
May 15, 2025 INSM Stock Option (right to buy) Common Stock (27,100) $67.22 May 15, 2035 27,100 Acquired
Jan. 30, 2025 INSM Stock Option (right to buy) Common Stock (50,000) $16.16 Jan. 7, 2026 50,000 Disposed
Jan. 30, 2025 INSM Stock Option (right to buy) Common Stock (41,140) $13.67 Jan. 5, 2027 41,140 Disposed
Jan. 8, 2025 INSM Stock Option (right to buy) Common Stock (27,370) $65.72 Jan. 8, 2035 27,370 Acquired
Sept. 10, 2024 INSM Stock Option (right to buy) Common Stock (37,575) $10.85 May 19, 2026 37,575 Disposed
June 3, 2024 INSM Stock Option (right to buy) Common Stock (13,750) $16.07 Jan. 8, 2025 13,750 Disposed
June 3, 2024 INSM Stock Option (right to buy) Common Stock (41,250) $22.76 May 21, 2025 41,250 Disposed
May 28, 2024 INSM Stock Option (right to buy) Common Stock (27,500) $12.58 June 2, 2024 27,500 Disposed
May 13, 2024 INSM Stock Option (right to buy) Common Stock (65,230) $25.83 May 13, 2034 65,230 Acquired
Jan. 9, 2024 INSM Stock Option (right to buy) Common Stock (503) $20.49 Jan. 10, 2024 503 Disposed
Jan. 4, 2024 INSM Stock Option (right to buy) Common Stock (58,260) $29.13 Jan. 4, 2034 58,260 Acquired
Dec. 28, 2023 INSM Stock Option (right to buy) Common Stock (22,288) $20.49 Jan. 4, 2024 22,288 Disposed
May 11, 2023 INSM Stock Option (right to buy) Common Stock (121,850) $18.95 May 11, 2033 121,850 Acquired
Jan. 5, 2023 INSM Stock Option (right to buy) Common Stock (29,050) $19.74 Jan. 5, 2033 29,050 Acquired
May 11, 2022 INSM Stock Option (right to buy) Common Stock (69,060) $17.07 May 11, 2032 69,060 Acquired
Jan. 6, 2022 INSM Stock Option (right to buy) Common Stock (45,700) $26.43 Jan. 6, 2032 45,700 Acquired
Nov. 1, 2021 INSM Stock Option (right to buy) Common Stock (25,000) $12.44 May 23, 2023 25,000 Disposed
Nov. 1, 2021 INSM Stock Option (right to buy) Common Stock (36,000) $12.44 May 23, 2023 36,000 Disposed
May 12, 2021 INSM Stock Option (right to buy) Common Stock (45,760) $26.46 May 12, 2031 45,760 Acquired
March 8, 2021 INSM Stock Option (right to buy) Common Stock (4,709) $20.49 Jan. 4, 2024 4,709 Acquired
Jan. 7, 2021 INSM Stock Option (right to buy) Common Stock (36,480) $34.03 Jan. 7, 2031 36,480 Acquired
Aug. 12, 2020 INSM Stock Option (right to buy) Common Stock (4,000) $12.44 May 23, 2023 4,000 Disposed
Aug. 12, 2020 INSM Stock Option (right to buy) Common Stock (465) $6.96 Jan. 2, 2023 465 Disposed
Aug. 11, 2020 INSM Stock Option (right to buy) Common Stock (3,761) $6.96 Jan. 2, 2023 3,761 Disposed
Jan. 3, 2020 INSM Stock Option (right to buy) Common Stock (56,520) $23.75 Jan. 3, 2030 56,520 Acquired
June 6, 2019 INSM Stock Option (right to buy) Common Stock (12,000) $6.96 Jan. 2, 2023 12,000 Disposed
Jan. 3, 2019 INSM Stock Option Common Stock (157,290) $13.91 Jan. 3, 2029 157,290 Acquired
Sept. 28, 2018 INSM Stock Option Common Stock $12.44 May 23, 2023 12,500 Acquired
May 30, 2018 INSM Stock Option (right to buy) Common Stock (25,991) $10.85 May 19, 2026 25,991 Disposed
May 29, 2018 INSM Stock Option (right to buy) Common Stock (11,584) $10.85 May 19, 2026 11,584 Disposed
Jan. 4, 2018 INSM Stock Option Common Stock (55,400) $30.46 Jan. 4, 2028 55,400 Acquired
May 17, 2017 INSM Stock Option Common Stock (38,300) $17.16 May 17, 2027 38,300 Acquired
Jan. 5, 2017 INSM Stock Option Common Stock (41,140) $13.67 Jan. 5, 2027 41,140 Acquired
Nov. 9, 2016 INSM Stock Option Common Stock (8,009) $6.96 Jan. 2, 2023 8,009 Disposed
Nov. 7, 2016 INSM Stock Option Common Stock (23,265) $6.96 Jan. 2, 2023 23,265 Disposed
Nov. 7, 2016 INSM Stock Option Common Stock (37,500) $6.96 Jan. 2, 2023 37,500 Disposed
May 19, 2016 INSM Stock Option Common Stock (75,150) $10.85 May 19, 2026 75,150 Acquired
Jan. 7, 2016 INSM Stock Option Common Stock (50,000) $16.16 Jan. 7, 2026 50,000 Acquired
May 21, 2015 INSM Stock Option Common Stock (41,250) $22.76 May 21, 2025 41,250 Acquired
Feb. 26, 2015 INSM Stock Option Common Stock (12,500) $12.44 May 23, 2023 12,500 Acquired
Jan. 8, 2015 INSM Stock Option Common Stock (13,750) $16.07 Jan. 8, 2025 13,750 Acquired
June 2, 2014 INSM Stock Option Common Stock (27,500) $12.58 June 2, 2024 27,500 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 4 holdings

07

Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
June 4, 2014 INSM Stock Option→ Common Stock (85,000) 85,000 Direct
June 4, 2014 INSM Stock Option→ Common Stock (40,000) 40,000 Direct
June 4, 2014 INSM Stock Option→ Common Stock (25,000) 25,000 Direct
June 4, 2014 INSM Stock Option→ Common Stock (27,500) 27,500 Direct