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CMCSA

Comcast Corporation - Class A Common Stock (CMCSA)

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CMCSA in the last 90 days

Comcast Corporation - Class A Common Stock (CMCSA) (CMCSA) had 2 congress transactions by 2 members and no insider purchases in filings from the last 90 days.

FINRA’s latest report (settlement 15 SEPT 2026) shows 79,928,949 shares held short, 3.1 days to cover, down 3.7% from the report before.

  • Congress: 0 purchases and 2 sales reported, amounts in the bands the law requires.
  • Delay: each filing below shows how many days passed between the trade and its publication. None of this is real-time.

Latest filing on file: 04 SEPT 2026 · FINRA settlement 15 SEPT 2026 · public filings, reported as filed

What the price is doing

$22$28 → $22 · -22% over six months

CMCSA is down 22%. Short sellers still aren't backing off.

Bets against it — they pay off if the price falls — are up 5% over the same stretch.

$28 STARTAPRMAYJUNJULAUGSEPTOCT14 APR 2026 — Hon. Gilbert Cisneros — $15,001 – $50,000 · partial07 MAY 2026 — Hon. Mike Kelly — $1,001 – $15,00016 JUN 2026 — Hon. Gilbert Cisneros — $1,001 – $15,00005 AUG 2026 — Hon. Kevin Hern — $1,001 – $15,00017 JUL 2026 — Hon. Gilbert Cisneros — $1,001 – $15,000NOW $22

Politician activityBoughtSold

Short sellers

11 reports · twice a month

APR 0%peak +17%15 SEPT +5%APRMAYJUNJULAUGSEPTOCT

Money betting CMCSA falls. Reported twice a month, and it shows up seven working days late.

Politicians

1 buys · 4 sales

Traded over six months

View activity →

Short sellers

Bets up 5%

Over six months · newest 15 SEPT 2026

See the numbers →

Insiders

Nothing reported

Traded over six months

Quiet Money

Our take on how well CMCSA holds up when sellers show up.

How it holds up · last 60 trading days

Through 21 SEPT 2026

Vulnerable

When CMCSA gets hit, it tends to drop more easily than usual.

Lately, CMCSA has been easier to push down than usual.

That's been true for the last 3 trading days.

The last 6 months

ResilientMixedVulnerable
MAYJUNJULAUGSEPT
31 MAR 2026Now · 21 SEPT 2026

What the filings show

What the filings show · last 90 days

2 of 4 sources

-23Tilted out

Leaning outBalancedLeaning in

The disclosed money is leaning away from this name, on what has actually been filed. This reads on two of the four sources we track.

Short interest
Short interest fell 6.1% — 85,090,590 to 79,928,949 shares between 15 JUL 2026 and 15 SEPT 2026. See the filings →
+15
Congress
2 members of Congress disclosed 0 purchases and 2 sales. See the filings →
-100

This summarises filings that have already been published — it is not a forecast, a rating of the company, or advice. Every figure above is listed in full further down this page, with the document it came from.

FINRA short interest

Settlement 15 SEPT 2026 · shares held short

79,928,949shares held short

Days to cover

3.14

Avg daily volume

25,417,453

Since last report

-3.66%

As of 15 September 2026, 79,928,949 Comcast Corporation - Class A Common Stock (CMCSA) shares were held short — the total across every reporting firm, not one fund's position. That is 3,036,403 shares fewer than the previous report, a 3.66% decrease. At the average daily volume of 25,417,453 shares, that position represents 3.14 days of trading — what the filing calls days to cover.

This is the most recent figure that exists, and it is 17 days old. FINRA collects short interest twice a month, on a settlement date, and publishes it about eight business days later. So nobody has a live short-interest number for CMCSA — not us, and not anyone quoting one. We print the settlement date on the figure so you always know which day you are looking at.

Across the 12 reports we hold, the position has risen from 79,003,913 shares on 31 March 2026 to 79,928,949 today, a change of 1.2%. The highest reading in that window was 89,134,254 shares on 15 June 2026.

SettlementShares shortDays to cover
15 SEPT 202679,928,9493.14
31 AUG 202682,965,3524.05
14 AUG 202675,479,1513.11
31 JUL 202672,592,3741.97
15 JUL 202685,090,5902.61
30 JUN 202688,032,7351.67
15 JUN 202689,134,2543.03
29 MAY 202683,844,9402.72
15 MAY 202685,159,9582.69
30 APR 202686,769,3842.52
15 APR 202675,956,5863.34
31 MAR 202679,003,9131.74
What is CMCSA's short interest?
79,928,949 shares, as of the 15 September 2026 settlement date. That is the figure FINRA published, unadjusted.
What percentage of the float is short?
We do not publish that, because FINRA does not publish float. The regulator reports the number of shares held short; turning it into a percentage needs a share count from somewhere else, and different sources disagree about what counts as float. We would rather give you the number that was actually filed than a percentage built on an assumption.
How current is this?
It is 17 days old, and that is as fresh as short interest gets. FINRA measures it twice a month and publishes it seven business days after the settlement date. Any site showing you a "live" short interest figure is showing you something else.
What does days to cover mean?
It is the short position divided by average daily trading volume — here, 3.14. It describes how many days of ordinary trading the position is equivalent to. It is arithmetic from the filing, not a prediction about what will happen.
Where does this come from?
FINRA's consolidated short interest file, which is public. We read it directly and store it unchanged, except that we blank the days-to-cover placeholder FINRA writes when a stock has almost no volume.

Disclosed insider buying on file

—no purchase on file passed the price check

Open-market purchases only — the amount is a fact, not a verdict.

On file here

Short positions0

Insider purchases0

Congress transactions28

Latest change04 SEPT 2026

SHORT POSITIONS · 0INSIDER BUYS · 0CONGRESS · 28

Congress transactions on file

28 disclosed · newest first · every row links to its filing

WhoAmount as filedTradedFiledLag
Hon. Gilbert CisnerosSOLD$1,001 – $15,00017 JUL 202604 SEPT 202649 days — the law says 45
Hon. Kevin HernSOLD$1,001 – $15,00005 AUG 202610 AUG 20265 days
Hon. Gilbert CisnerosBOUGHT$1,001 – $15,00016 JUN 202602 JUL 202616 days
Hon. Mike KellySOLD$1,001 – $15,00007 MAY 202611 JUN 202635 days
Hon. Gilbert CisnerosSOLD$15,001 – $50,000 · partial14 APR 202608 MAY 202624 days
Hon. Kevin HernSOLD$15,001 – $50,00017 MAR 202603 APR 202617 days
Hon. Gilbert CisnerosBOUGHT$1,001 – $15,00009 JAN 202613 FEB 202635 days
Hon. Julie JohnsonSOLD$1,001 – $15,00018 DEC 202515 JAN 202628 days
Hon. Gilbert CisnerosSOLD$1,001 – $15,000 · partial18 NOV 202515 DEC 202527 days
Hon. Gilbert CisnerosSOLD$1,001 – $15,000 · partial12 NOV 202515 DEC 202533 days
Hon. Julie JohnsonSOLD$1,001 – $15,000 · partial13 NOV 202511 DEC 202528 days
Hon. Gilbert CisnerosSOLD$1,001 – $15,000 · partial09 OCT 202518 NOV 202540 days
Hon. Valerie HoyleSOLD$1,001 – $15,00023 SEPT 202510 OCT 202517 days
Hon. Sheri BiggsSOLD$1,001 – $15,00019 MAR 202505 OCT 2025200 days — the law says 45
Hon. Gilbert CisnerosSOLD$1,001 – $15,000 · partial05 AUG 202512 SEPT 202538 days
Hon. Julie JohnsonSOLD$1,001 – $15,000 · partial14 AUG 202511 SEPT 202528 days
Hon. Scott Scott FranklinSOLD$1,001 – $15,00004 AUG 202514 AUG 202510 days
Hon. Scott Scott FranklinSOLD$15,001 – $50,00004 AUG 202514 AUG 202510 days
Hon. Scott Scott FranklinSOLD$1,001 – $15,00004 AUG 202514 AUG 202510 days
Hon. Scott Scott FranklinBOUGHT$1,001 – $15,00007 AUG 202403 JUL 2025330 days — the law says 45
Hon. Jefferson ShreveSOLD$15,001 – $50,00012 MAY 202522 JUN 202541 days
Hon. Julie JohnsonSOLD$1,001 – $15,00001 APR 202514 MAY 202543 days
Hon. Rob BresnahanBOUGHT$15,001 – $50,00008 APR 202508 MAY 202530 days
Hon. George WhitesidesSOLD$50,001 – $100,00024 MAR 202523 APR 202530 days
Hon. Jefferson ShreveBOUGHT$15,001 – $50,00031 MAR 202511 APR 202511 days
Hon. Rob BresnahanSOLD$1,001 – $15,00025 FEB 202527 MAR 202530 days
Hon. Jefferson ShreveSOLD$15,001 – $50,00024 FEB 202509 MAR 202513 days
Hon. Rick LarsenSOLD$1,001 – $15,00007 JAN 202514 JAN 20257 days
What this page will never showNo price targetsNo score out of 100No buy or sell callsNo predictionsDocuments, dates, and how late they were.