Insider trading

Period: 120 months Stock: CMCSA Plan: Discretionary × + 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.

12 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.

12 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.

12 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.

12 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.
12 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
12 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.

12 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
5 Mar 2026
Sold at will
$142.62K 4,494 at 31.74
2.6%
Not planned
11 Feb 2026
Cavanagh Michael J Co-CEO · indirect
Sold at will
$1.89M 57,947 at 32.66
8.5%
Not planned
3 Feb 2026
NAKAHARA ASUKA Director
Sold at will
$245.77K 8,275 at 29.70
12.5%
Not planned
27 Nov 2024
ROBERTS BRIAN L Chairman of Board & CEO
Sold at will
$10.06M 235,051 at 42.80
3.5%
Not planned
26 Nov 2024
ROBERTS BRIAN L Chairman of Board & CEO
Sold at will
$10.00M 234,464 at 42.66
3.4%
Not planned
26 Nov 2024
Cavanagh Michael J President · indirect
Sold at will
$4.58M 107,622 at 42.53
19.2%
Not planned
26 Nov 2024
Cavanagh Michael J President
Sold at will
$1.09M 25,537 at 42.59
4.6%
Not planned
22 Nov 2024
BACON KENNETH J Director
Sold at will
$625.09K 14,408 at 43.39
30.6%
Not planned
6 Nov 2024
Sold at will 2×
$1.04M 23,248 at 44.84
22.5%
Not planned
29 Jan 2024
Cavanagh Michael J President
Sold at will
$5.29M 114,749 at 46.10
100%
Sold half or more
20 Nov 2023
Sold at will 2×
$1.78M 41,663 at 42.63
74.2%
Sold half or more
14 Nov 2023
ROBERTS BRIAN L Chairman of Board & CEO · indirect
Sold at will
$25.83M 616,143 at 41.92
3.5%
Not planned
Showing 1–12 of 12.