INSMED INC insider transactions

What is a Form 4?

Animation: what a Form 4 is, shown with one real example. Sonic Automotive (SAH) reporting owner Paul P. Rusnak bought 13,701 shares at $59.78 on Wednesday, October 7, 2026, transaction code P, an open-market purchase (S is a sale and A is an award from the company). A timeline marks the SEC's two-business-day filing deadline, which ends Friday, October 9. The SEC accepted the Form 4 at 4:33:21 PM ET on October 9, and NexusTrade treats it as public one minute later, at 4:34:21 PM ET. A lamp for NexusTrade's InsiderTrades indicator stays off from the trade date until that moment, then counts one purchase worth 13,701 × $59.78 = $819,045.78. — In this example the shares were bought on Oct 7, 2026, and NexusTrade's InsiderTrades indicator can count the purchase starting at 4:34:21 PM ET on Oct 9, one minute after the SEC accepted the Form 4.

A Form 4 is the SEC filing a company insider, such as an officer, director or 10% owner, uses to report a trade in the company's stock, generally within two business days. The animation follows one real filing as an example: Paul P. Rusnak's purchase of Sonic Automotive (SAH) shares on October 7, 2026.

The same reading applies to every row on this page. The trade date is when the shares changed hands. The available date is when NexusTrade treats the filing as public, and a NexusTrade InsiderTrades indicator counts a purchase (code P) or sale (code S) only from that moment. Code A awards are not counted as purchases.

Read one actual disclosure before using it

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2026-09-11	2026-09-09	Brennan David R	S	25,000	$124	Not reported

First displayed source row from Recent insider disclosures. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-09-09 and its public availability date is 2026-09-11. Subtracting those calendar dates gives 2 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC accession 0001609305-26-000009 ↗SEC accession 0001182633-26-000010 ↗SEC accession 0001685904-26-000014 ↗

Recent insider disclosures

This table includes purchases, sales and awards in the public filing record. Awards and open-market purchases are distinct transaction codes. For historical research, use the public availability date to determine when the transaction was knowable.

Read code P as a purchase, S as a sale and A as an award. An award is an acquisition, but it is not an open-market purchase. Open the filing receipt to check the transaction details.

Show the table · 7 rows, 7 columns

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2026-09-11	2026-09-09	Brennan David R	S	25,000	$124	Not reported
2026-08-20	2026-08-17	SHAROKY MELVIN MD	S	5,000	$127.53	Not reported
2026-08-13	2026-08-10	Adsett Roger	S	239,850	$133.27	Not reported
2026-08-08	2026-08-06	Flammer Martina M.D.	S	18,278	$129.4	Not reported
2026-08-08	2026-08-06	Flammer Martina M.D.	S	8,895	$127	Not reported
2026-07-25	2026-07-23	Lewis William	S	5,872	$106.43	Not reported
2026-07-25	2026-07-23	Lewis William	S	4,828	$105.62	Not reported

Most recent 90-day source activity, up to 50 rows. No rows means no matching recent records, not no historical activity.

Officers and directors in the directory

Inspect all 29 displayed rows: Officers and directors in the directory

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LEE LEO	0001740789	6
SHAROKY MELVIN MD	0001182633	67
MCGIRR DAVID W J	0001219023	37
Brennan David R	0001609305	3
ENGELSEN STEINAR J	0001218860	15
Adsett Roger	0001685904	46
Wise John Drayton	0001930805	19
Smith Michael Alexander	0001870278	58
Schaeffer Orlov S Nicole	0001401017	64
Lewis William	0001402051	226
HAYDEN DONALD J JR	0001202285	40
POTTER MYRTLE S	0001214130	16
Glover Stephen C.	0001304406	7
Drechsler Andrew T	0001324734	7
Pellizzari Christine A	0001127430	24
ALTOMARI ALFRED	0001285644	22
ALLAN GEOFFREY	0001218856	1
ANDERSON ELIZABETH M	0001758247	10
Bonstein Sara	0001604019	46
CROOKE GRAHAM K	0001218859	1
Desjardins Clarissa	0001793390	2
Drucker Andrea Holtzman	0001526664	1
Flammer Martina M.D.	0001796960	88
GUPTA RENU	0001269592	4
Quigley Mark	0001608778	2
SORIANO JOHN	0001740947	7
TULLY KEVIN P	0001218865	3
WHITCOMB RANDALL W	0001218867	2
Whitten Timothy	0001506413	2

Which transactions qualify for the company tracker

The company strategy uses verified officers and directors with qualifying acquisitions at this issuer. Other reporting owners may appear in source records without becoming strategy signals.

This issuer meets the currently published company-strategy eligibility rules.

Historical follower simulations are separate from these source transactions. They do not establish live trading results.