Company profile

Comcast Corp Insider Trading

CMCSA

Every SEC Form 4 insider trading filing for Comcast Corp (CMCSA) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?

Exchange
Nasdaq
Sector
Cable & Other Pay Television Services
CIK
0001166691
Filings
218
Insiders
18
Last filing
2026-08-17

Activity summary

No discretionary insider buying or selling in the last 30 days. The 2 transactions filed were grants, option exercises or other non-open-market activity.

Three year balance

Buy and sell value by quarter, Q4 23 to Q3 26. Comcast Corp insiders are net buyers across the period shown.

Q4 23Q1 24Q2 24Q3 24Q4 24Q1 25Q2 25Q3 25Q4 25Q1 26Q2 26Q3 26

Bars below the rule are sales, above are purchases. Largest quarter on the chart is $102.4M.

90 day insight

Over the last 90 days, Comcast Corp insiders bought $0 across 5 transactions with no open-market sales.

  • Most active insider: Breen Edward D with 2 transactions totaling $0.

Activity skews bullish — buys outpace sales.

Insider Transactions

Sourced from SEC EDGAR Form 4 filings. Updated hourly.

DateInsiderCompanyTypeSharesPriceValue
Aug 17, 2026Breen Edward DCMCSA
Gift
62,440
Aug 5, 2026Roberts Brian LCMCSA
Gift
204,100
Jun 30, 2026Breen Edward DCMCSA
Award
815
Jun 30, 2026Smith GordonCMCSA
Award
1,375
Jun 30, 2026Brady Louise F.CMCSA
Award
1,375

45 more transactions hidden

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Query this yourself

The same rows, over the API.

curl "https://api.form4api.com/v1/transactions?ticker=CMCSA" \
  -H "X-Api-Key: $KEY"
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Top insiders

By total value filed.

Armstrong JasonCFO & Treasurer4 filings+$1.8M
Reid Thomas J.Chief Legal Officer, Secretary1 filing$1.5M
Roberts Brian LChairman of Board & Co-CEO1 filing$1.4M
Khoury JenniferChief Communications Officer6 filings+$112K
Murdock Daniel C.EVP & Chief Accounting Officer5 filings$159K

Institutional Ownership

Top 13F-HR holders of Comcast Corp as of 2026-06-30

↓ decreasing
Total reported AUM
$22.24B
QoQ change
-72.8%
Reporting period
2026-06-30
#1
State Street Corp
CIK 0000093751
$4.79B
195.1M shares
#2
BlackRock, Inc.
CIK 0002012383
$2.65B
107.8M shares
#3
BlackRock, Inc.
CIK 0002012383
$1.86B
75.6M shares

Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →