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TDG

TransDigm Group Incorporated

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TDG in the last 90 days

TransDigm Group Incorporated (TDG) had 2 congress transactions by 1 member and no insider purchases in filings from the last 90 days.

FINRA’s latest report (settlement 15 SEPT 2026) shows 1,067,135 shares held short, 3.2 days to cover, up 18.7% from the report before.

  • Congress: 1 purchase and 1 sale 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: 09 SEPT 2026 · FINRA settlement 15 SEPT 2026 · public filings, reported as filed

What the price is doing

$1,097$1,190 → $1,097 · -8% over six months

TDG is down 8%. Short sellers have barely moved.

Bets against it — they pay off if the price falls — are up 3% over the same stretch.

$1,190 STARTAPRMAYJUNJULAUGSEPTOCT15 APR 2026 — Hon. April McClain Delaney — $1,001 – $15,00016 APR 2026 — Hon. April McClain Delaney — $15,001 – $50,00017 APR 2026 — Hon. April McClain Delaney — $1,001 – $15,00020 APR 2026 — Hon. April McClain Delaney — $1,001 – $15,00029 APR 2026 — Hon. April McClain Delaney — $1,001 – $15,00007 MAY 2026 — Hon. April McClain Delaney — $1,001 – $15,00008 MAY 2026 — Hon. April McClain Delaney — $1,001 – $15,00013 MAY 2026 — Hon. April McClain Delaney — $1,001 – $15,00021 MAY 2026 — Hon. April McClain Delaney — $1,001 – $15,00022 MAY 2026 — Hon. April McClain Delaney — $1,001 – $15,00028 JUL 2026 — Hon. April McClain Delaney — $1,001 – $15,00025 AUG 2026 — Hon. April McClain Delaney — $100,001 – $250,000NOW $1,097

Politician activityBoughtSold

Short sellers

11 reports · twice a month

APR 0%peak +10%15 SEPT +3%APRMAYJUNJULAUGSEPTOCT

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

Politicians

11 buys · 1 sales

Traded over six months

View activity →

Short sellers

Bets up 3%

Over six months · newest 15 SEPT 2026

See the numbers →

Insiders

Nothing reported

Traded over six months

Quiet Money

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

How it holds up · last 60 trading days

Through 21 SEPT 2026

Vulnerable

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

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

That's been true for the last 45 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

+1Balanced

Leaning outBalancedLeaning in

The disclosed money is split, on what has actually been filed. This reads on two of the four sources we track.

Short interest
Short interest fell 0.6% — 1,073,290 to 1,067,135 shares between 15 JUL 2026 and 15 SEPT 2026. See the filings →
+1
Congress
1 member of Congress disclosed 1 purchase and 1 sale. See the filings →
0

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

1,067,135shares held short

Days to cover

3.17

Avg daily volume

336,260

Since last report

+18.68%

As of 15 September 2026, 1,067,135 TransDigm Group Incorporated shares were held short — the total across every reporting firm, not one fund's position. That is 167,945 shares more than the previous report, a 18.68% increase. At the average daily volume of 336,260 shares, that position represents 3.17 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 TDG — 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 1,048,865 shares on 31 March 2026 to 1,067,135 today, a change of 1.7%. The highest reading in that window was 1,146,271 shares on 30 June 2026.

SettlementShares shortDays to cover
15 SEPT 20261,067,1353.17
31 AUG 2026899,1902.51
14 AUG 2026835,4371.49
31 JUL 2026962,4062.91
15 JUL 20261,073,2903.23
30 JUN 20261,146,2712.35
15 JUN 20261,128,4973.36
29 MAY 20261,048,2452.38
15 MAY 2026980,5732.46
30 APR 20261,004,1382.38
15 APR 20261,038,5713.30
31 MAR 20261,048,8652.20
What is TDG's short interest?
1,067,135 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, 3.17. 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 transactions27

Latest change09 SEPT 2026

SHORT POSITIONS · 0INSIDER BUYS · 0CONGRESS · 27

Congress transactions on file

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

WhoAmount as filedTradedFiledLag
Hon. April McClain DelaneySOLD$100,001 – $250,00025 AUG 202609 SEPT 202615 days
Hon. April McClain DelaneyBOUGHT$1,001 – $15,00028 JUL 202603 AUG 20266 days
Hon. April McClain DelaneyBOUGHT$1,001 – $15,00022 MAY 202605 JUN 202614 days
Hon. April McClain DelaneyBOUGHT$1,001 – $15,00013 MAY 202605 JUN 202623 days
Hon. April McClain DelaneyBOUGHT$1,001 – $15,00007 MAY 202605 JUN 202629 days
Hon. April McClain DelaneyBOUGHT$1,001 – $15,00008 MAY 202605 JUN 202628 days
Hon. April McClain DelaneyBOUGHT$1,001 – $15,00021 MAY 202605 JUN 202615 days
Hon. April McClain DelaneyBOUGHT$15,001 – $50,00016 APR 202606 MAY 202620 days
Hon. April McClain DelaneyBOUGHT$1,001 – $15,00020 APR 202606 MAY 202616 days
Hon. April McClain DelaneyBOUGHT$1,001 – $15,00015 APR 202606 MAY 202621 days
Hon. April McClain DelaneyBOUGHT$1,001 – $15,00017 APR 202606 MAY 202619 days
Hon. April McClain DelaneyBOUGHT$1,001 – $15,00029 APR 202606 MAY 20267 days
Hon. Gilbert CisnerosSOLD$1,001 – $15,000 · partial25 MAR 202607 APR 202613 days
Hon. Gilbert CisnerosBOUGHT$1,001 – $15,00016 MAR 202607 APR 202622 days
Hon. Gilbert CisnerosBOUGHT$1,001 – $15,00030 JAN 202613 FEB 202614 days
Hon. Gilbert CisnerosSOLD$1,001 – $15,000 · partial24 DEC 202512 JAN 202619 days
Hon. Gilbert CisnerosBOUGHT$1,001 – $15,00018 NOV 202515 DEC 202527 days
Hon. Gilbert CisnerosBOUGHT$1,001 – $15,00017 OCT 202518 NOV 202532 days
Hon. Valerie HoyleSOLD$1,001 – $15,00023 SEPT 202510 OCT 202517 days
Hon. Valerie HoyleBOUGHT$1,001 – $15,00029 OCT 202412 SEPT 2025318 days — the law says 45
Hon. Jefferson ShreveSOLD$15,001 – $50,00012 MAY 202522 JUN 202541 days
Hon. Jefferson ShreveSOLD$15,001 – $50,000 · partial08 MAY 202522 JUN 202545 days
Hon. Jefferson ShreveBOUGHT$15,001 – $50,00007 APR 202508 MAY 202531 days
Hon. Jefferson ShreveBOUGHT$15,001 – $50,00005 MAR 202511 APR 202537 days
Hon. Josh GottheimerSOLD$1,001 – $15,000 · partial04 FEB 202506 MAR 202530 days
Hon. Rob BresnahanSOLD$1,001 – $15,00013 JAN 202513 FEB 202531 days
Hon. Josh GottheimerSOLD$1,001 – $15,000 · partial16 JAN 202510 FEB 202525 days
What this page will never showNo price targetsNo score out of 100No buy or sell callsNo predictionsDocuments, dates, and how late they were.