Insider trading

Period: 120 months Stock: INSM Plan: Not on a plan × + Add filter Clear all
Views & alerts

Save your view. Keep the filter you have built, and get an email when a new filing matches it. A free account does both.

When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

228 decisions over 120 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

228 decisions over 120 months
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

228 decisions over 120 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

228 decisions over 120 months
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
228 decisions over 120 months Remove this filter
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
228 decisions over 120 months
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

228 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
9 Sep 2026
Brennan David R Director
Sold at will
$3.10M 25,000 at 124.00
38.9%
Not planned
17 Aug 2026
SHAROKY MELVIN MD Director · indirect
Sold at will
$637.65K 5,000 at 127.53
100%
Sold half or more
10 Aug 2026
Adsett Roger Chief Operating Officer
Sold at will
$31.96M 239,850 at 133.27
70.8%
Sold half or more
3 Jun 2026
Lewis William Chair and CEO
Sold at will
$777.76K 7,605 at 102.27
2.8%
Not planned
3 Jun 2026
Bonstein Sara Chief Financial Officer
Sold at will
$245.86K 2,404 at 102.27
3.4%
Not planned
3 Jun 2026
Adsett Roger Chief Operating Officer
Sold at will
$242.38K 2,370 at 102.27
2.3%
Not planned
3 Jun 2026
Smith Michael Alexander Chief Legal Officer
Sold at will
$220.80K 2,159 at 102.27
5.2%
Not planned
13 May 2026
Lewis William Chair and CEO
Sold at will
$1.54M 13,283 at 116.18
4.4%
Not planned
13 May 2026
Bonstein Sara Chief Financial Officer
Sold at will
$961.04K 8,272 at 116.18
10.4%
Not planned
13 May 2026
Adsett Roger Chief Operating Officer
Sold at will
$678.14K 5,837 at 116.18
5.5%
Not planned
13 May 2026
Smith Michael Alexander Chief Legal Officer
Sold at will
$477.38K 4,109 at 116.18
7.9%
Not planned
3 Feb 2026
Lewis William Chair and CEO
Sold at will
$470.43K 3,009 at 156.34
1.0%
Not planned
3 Feb 2026
Adsett Roger Chief Operating Officer
Sold at will
$123.53K 791 at 156.17
0.7%
Not planned
3 Feb 2026
Bonstein Sara Chief Financial Officer
Sold at will
$116.94K 748 at 156.34
0.9%
Not planned
3 Feb 2026
Smith Michael Alexander Chief Legal Officer
Sold at will
$100.01K 640 at 156.27
1.1%
Not planned
8 Jan 2026
Lewis William Chair and CEO
Sold at will
$561.35K 3,223 at 174.17
1.0%
Not planned
8 Jan 2026
Adsett Roger Chief Operating Officer
Sold at will
$358.62K 2,059 at 174.17
1.9%
Not planned
8 Jan 2026
Bonstein Sara Chief Financial Officer
Sold at will
$252.02K 1,447 at 174.17
1.8%
Not planned
8 Jan 2026
Smith Michael Alexander Chief Legal Officer
Sold at will
$183.40K 1,053 at 174.17
1.8%
Not planned
7 Jan 2026
Lewis William Chair and CEO
Sold at will
$412.64K 2,357 at 175.07
0.7%
Not planned
7 Jan 2026
Bonstein Sara Chief Financial Officer
Sold at will
$293.77K 1,678 at 175.07
2.0%
Not planned
7 Jan 2026
Adsett Roger Chief Operating Officer
Sold at will
$140.41K 802 at 175.07
0.7%
Not planned
7 Jan 2026
Smith Michael Alexander Chief Legal Officer
Sold at will
$124.12K 709 at 175.07
1.2%
Not planned
6 Jan 2026
Lewis William Chair and CEO
Sold at will
$709.96K 4,096 at 173.33
1.3%
Not planned
6 Jan 2026
Bonstein Sara Chief Financial Officer
Sold at will
$262.94K 1,517 at 173.33
1.8%
Not planned
6 Jan 2026
Adsett Roger Chief Operating Officer
Sold at will
$247.69K 1,429 at 173.33
1.3%
Not planned
6 Jan 2026
Smith Michael Alexander Chief Legal Officer
Sold at will
$241.97K 1,396 at 173.33
2.3%
Not planned
5 Dec 2025
Sold at will
$4.10M 20,000 at 205.01
7.6%
Not planned
24 Nov 2025
Sold at will
$1.02M 5,000 at 204.58
7.8%
Not planned
17 Nov 2025
LEE LEO Director
Sold at will 5×
$14.69M 75,000 at 195.90
57.8%
Sold half or more
14 Nov 2025
Sold at will
$1.96M 10,000 at 195.87
13.6%
Not planned
12 Nov 2025
Schaeffer Orlov S Nicole Chief People Strategy Officer
Sold at will 4×
$5.82M 30,000 at 194.00
45.1%
Not planned
12 Sep 2025
Sold at will
$1.45M 10,000 at 145.39
3.7%
Not planned
20 Aug 2025
Sold at will
$1.30M 10,000 at 129.50
3.5%
Not planned
19 Aug 2025
Adsett Roger Chief Operating Officer
Sold at will 2×
$3.19M 25,000 at 127.58
19.1%
Not planned
14 Aug 2025
Schaeffer Orlov S Nicole Chief People Strategy Officer
Sold at will 3×
$1.27M 10,000 at 127.34
11.1%
Not planned
12 Aug 2025
Sold at will
$1.22M 10,000 at 121.58
3.3%
Not planned
3 Jun 2025
Adsett Roger Chief Operating Officer
Sold at will
$132.99K 1,860 at 71.50
1.3%
Not planned
3 Jun 2025
Flammer Martina M.D. Chief Medical Officer
Sold at will
$120.55K 1,686 at 71.50
2.0%
Not planned
3 Jun 2025
Schaeffer Orlov S Nicole Chief People Strategy Officer
Sold at will
$117.40K 1,642 at 71.50
1.4%
Not planned
3 Jun 2025
Bonstein Sara Chief Financial Officer
Sold at will
$112.90K 1,579 at 71.50
1.4%
Not planned
3 Jun 2025
Smith Michael Alexander Chief Legal Officer
Sold at will
$103.53K 1,448 at 71.50
2.0%
Not planned
21 May 2025
Desjardins Clarissa Director · indirect
Bought
$74.98K 1,130 at 66.35
59.6%
+60% of stake
20 May 2025
Desjardins Clarissa Director · indirect
Bought
$126.72K 1,895 at 66.87
opened
First buy on file
14 May 2025
Lewis William Chair and CEO
Sold at will
$247.42K 3,771 at 65.61
1.2%
Not planned
14 May 2025
Adsett Roger Chief Operating Officer
Sold at will
$126.30K 1,925 at 65.61
1.4%
Not planned
14 May 2025
Flammer Martina M.D. Chief Medical Officer
Sold at will
$114.42K 1,744 at 65.61
1.9%
Not planned
14 May 2025
Bonstein Sara Chief Financial Officer
Sold at will
$107.21K 1,634 at 65.61
1.5%
Not planned
14 May 2025
Schaeffer Orlov S Nicole Chief People Strategy Officer
Sold at will
$81.09K 1,236 at 65.61
1.1%
Not planned
14 May 2025
Smith Michael Alexander Chief Legal Officer
Sold at will
$26.83K 409 at 65.61
0.4%
Not planned
Showing 1–50 of 228. Page 1 of 5 Older →