SEC Form 4 reporting owner

Smith Michael Alexander

Smith Michael Alexander has filed 17 Form 4 transactions reported between January 2, 2026 and June 22, 2026, as Chief Legal Officer of INSMED Inc.

Name as filed: Smith Michael Alexander

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$9.0M

12 lines

Companies

with Form 4 filings

Latest transaction

Jun 22, 2026

transaction date

Roles and reported holdings

INSMINSMED Inc
Jan 2, 2026 – Jun 22, 2026
Chief Legal Officer
Held directly37,648 sh as of Jun 22, 2026 · Form 4
24 months: $9.0M sold

Transaction history

All 17 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
Jun 22, 2026	INSMChief Legal Officer	Open-market saleCode S · direct	1,806	$95.82	$173K@ $95.82	37,648	Form 4
Jun 3, 2026	INSMChief Legal Officer	Open-market saleCode S · direct	2,159	$102.27	$221K@ $102.27	39,454	Form 4
May 22, 2026	INSMChief Legal Officer	Open-market saleCode S · direct	6,149	$108.47	$667K@ $108.47	41,613	Form 4
May 13, 2026	INSMChief Legal Officer	Open-market saleCode S · direct	4,109	$116.18	$477K@ $116.18	47,762	Form 4
Mar 30, 2026	INSMChief Legal Officer	Open-market saleCode S · direct	19,638	$150.98	$3.0M@ $150.98	51,871	Form 4
Mar 30, 2026	INSMChief Legal Officer	Option exerciseCode M · direct	13,989	$27.89	$390K@ $27.89	71,509	Form 4
Mar 30, 2026	INSMChief Legal Officer	Option exerciseCode M · direct	5,649	$17.07	$96K@ $17.07	57,520	Form 4
Feb 24, 2026	INSMChief Legal Officer	Open-market saleCode S · direct	15,771	$156.53	$2.5M@ $156.53	51,871	Form 4
Feb 24, 2026	INSMChief Legal Officer	Open-market saleCode S · direct	4,151	$155.06	$644K@ $155.06	67,642	Form 4
Feb 24, 2026	INSMChief Legal Officer	Open-market saleCode S · direct	4,852	$153.93	$747K@ $153.93	71,793	Form 4
Feb 24, 2026	INSMChief Legal Officer	Option exerciseCode M · direct	20,248	$17.07	$346K@ $17.07	76,645	Form 4
Feb 3, 2026	INSMChief Legal Officer	Open-market saleCode S · direct	640	$156.27	$100K@ $156.27	56,397	Form 4
Jan 8, 2026	INSMChief Legal Officer	Open-market saleCode S · direct	1,053	$174.17	$183K@ $174.17	57,037	Form 4
Jan 7, 2026	INSMChief Legal Officer	Open-market saleCode S · direct	709	$175.07	$124K@ $175.07	58,090	Form 4
Jan 6, 2026	INSMChief Legal Officer	Open-market saleCode S · direct	1,396	$173.33	$242K@ $173.33	58,799	Form 4
Jan 2, 2026	INSMChief Legal Officer	Grant or awardCode A · direct	27,600	—	—	27,600	Form 4
Jan 2, 2026	INSMChief Legal Officer	Grant or awardCode A · direct	5,293	—	—	60,195	Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.