Insider trading

Period: 12 months Stock: INSM Minimum amount: $100K × + 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.

72 decisions over 12 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.

72 decisions over 12 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.

72 decisions over 12 months
The trade

Minimum amount

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

72 decisions over 12 months Remove this filter
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.
72 decisions over 12 months
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
72 decisions over 12 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.

72 decisions over 12 months
Stock
Insider
Type ?
Why it stands out
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
Flammer Martina M.D. Chief Medical Officer
Sold on a plan
$252.15K 1,434 at 175.84
1.5%
Planned (10b5-1)
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
Flammer Martina M.D. Chief Medical Officer
Sold on a plan 4×
$1.77M 10,185 at 173.80
9.9%
Planned (10b5-1)
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 Jan 2026
Flammer Martina M.D. Chief Medical Officer
Sold on a plan 7×
$2.11M 12,303 at 171.38
11.5%
Planned (10b5-1)
2 Jan 2026
Schaeffer Orlov S Nicole Chief People Strategy Officer
Sold on a plan 5×
$15.29M 87,290 at 175.20
67.6%
Sold half or more
18 Dec 2025
Lewis William Chair and CEO
Sold on a plan 10×
$1.79M 10,699 at 166.97
3.4%
Planned (10b5-1)
5 Dec 2025
Sold at will
$4.10M 20,000 at 205.01
7.6%
Not planned
4 Dec 2025
Lewis William Chair and CEO
Sold on a plan 4×
$2.20M 10,699 at 205.62
3.4%
Planned (10b5-1)
1 Dec 2025
Flammer Martina M.D. Chief Medical Officer
Sold on a plan 3×
$1.84M 8,895 at 206.98
9.7%
Planned (10b5-1)
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
11 Nov 2025
Flammer Martina M.D. Chief Medical Officer
Sold on a plan 4×
$5.92M 31,226 at 189.68
27.3%
Planned (10b5-1)
3 Nov 2025
Smith Michael Alexander Chief Legal Officer
Sold on a plan 8×
$4.99M 27,130 at 183.78
33.1%
Planned (10b5-1)
Showing 51–72 of 72. ← Newer Page 2 of 2