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BRIAN L ROBERTS

CIK 1063948 · Chairman of Board & Co-CEO · last filed 2026-09-03

BRIAN L ROBERTS is a Chairman of Board & Co-CEO who has filed 134 SEC Form 4 insider transactions across 2 companies since 2007. The most recent filing, for CMCSA, was dated Sep 3, 2026. Across all open-market trades the lifetime net is −$287.3M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $560.6M across reported positions. 143 SEC filings were submitted jointly with COMCAST CORP.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$560.64M

Companies

2

Total Filings

134

Lifetime Open-Market Net

-$287.33M

Filer Profile

Reported Address
COMCAST CORP
ONE COMCAST CENTER, 1701 JFK BOULEVARD
PHILIDELPHIA, PA 19103
Related Filers
COMCAST CORP — 143 joint filings, latest 2026-08-06
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
CMCSA Chairman of Board & Co-CEO 21,164,247 $26.49 $560.64M -$249.61M 93 2026-09-03
COMCAST CORP (CMCSK) Delisted Chairman of Board, Pres. & CEO 190,295 — — -$37.72M 39 2012-11-08

Recent Filings

134 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-09-03 CMCSA Mixed −101,900 $0 EDGAR
2026-08-06 CMCSA Gift (G) −204,100 $0 EDGAR
2026-08-06 CMCSA Gift (G) −204,100 $0 EDGAR
2026-05-20 CMCSA Gift (G) −202,500 $0 EDGAR
2026-03-03 CMCSA Mixed — -$1.41M EDGAR
2026-02-26 CMCSA Grant (A) — $0 EDGAR
2026-02-13 CMCSA Mixed +76,667 -$1.74M EDGAR
2025-11-05 CMCSA Mixed −1,702,431 $0 EDGAR
2025-09-04 CMCSA Disc (I) — $0 EDGAR
2025-03-07 CMCSA Mixed +89,122 -$2.29M EDGAR
Showing 1–10 of 134
Page 1 of 14
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.