William Lewis

INSM

William Lewis serves as director, officer: Chair and CEO at Insmed Incorporated (INSM). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

56 trades

$100.94M

Net Position

Net Seller

$100.94M

Companies Traded

INSM

Active Period

Mar 2021 – Jul 2026

56 total trades

Most Recent

Sell INSM

Jul 24, 2026 · $1.13M

William Lewis's Insider Trading at Insmed Incorporated (INSM)

Buys

0 · $0.00

Sells

6 · $9.80M

Total Shares Bought

Total Shares Sold

355,178

INSM Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Mar 25, 2022	Sell	96,614	$23.16	$2.24M	217,624
Jan 13, 2022	Sell	2,873	$25.11	$72.1K	217,624
Jan 7, 2022	Sell	12,463	$26.92	$335.5K	195,093
Dec 28, 2021	Sell	96,614	$27.97	$2.70M	202,219
Oct 1, 2021	Sell	96,614	$27.36	$2.64M	215,526
Mar 18, 2021	Sell	50,000	$36.19	$1.81M	205,969