Ownership & Insider Lab

Look up a company to review the current SEC-traceable insider positions Grizzly Bulls can publish, the reporting owners represented in that snapshot, and recent supported insider transactions where recent transaction history is separately available.
Coverage follows the existing reviewed company dataset and fails closed when a ticker is not currently supported.

TransDigm Group INC (TDG)

NYSE · SEC CIK 0001260221

$4.02MCovered current disclosed holdings
1Covered reporting owners
1Covered direct positions
1Source ownership filings

This is the supported SEC-traceable subset, not total insider ownership or personal wealth. Values reflect the current disclosed positions Grizzly Bulls can resolve and value. Latest source filing: Sep 16, 2026 · values through Sep 25, 2026.

Covered reporting owners

Filter the reporting-owner snapshot by holder, role, or security. Position values are shown only where the current reviewed data supports them.

1 shown
HolderRolePositionCurrent valueLatest filing
Joel ReissCo-Chief Operating Officer3,600 sharesCommon Stock, $0.01 par value$4.02MSep 16, 2026

Recent supported insider transactions

These are supported direct, non-derivative historical transactions from companies where recent transaction history has passed separate review. Reported price is shown when present. The lab does not calculate gross proceeds and does not treat historical transactions as current wealth.

12 shown
DateHolderActionSecurityUnitsReported priceFiling
Sep 15, 2026Joel ReissSaleSEC code SCommon Stock, $0.01 par value20 shares$1,118.9954
Sep 15, 2026Joel ReissSaleSEC code SCommon Stock, $0.01 par value20 shares$1,113.374
Sep 15, 2026Joel ReissSaleSEC code SCommon Stock, $0.01 par value30 shares$1,112.37674
Sep 15, 2026Joel ReissSaleSEC code SCommon Stock, $0.01 par value30 shares$1,108.34334
Sep 15, 2026Joel ReissSaleSEC code SCommon Stock, $0.01 par value40 shares$1,106.68734
Sep 15, 2026Joel ReissSaleSEC code SCommon Stock, $0.01 par value5 shares$1,105.2844
Sep 15, 2026Joel ReissSaleSEC code SCommon Stock, $0.01 par value125 shares$1,104.57724
Sep 15, 2026Joel ReissSaleSEC code SCommon Stock, $0.01 par value210 shares$1,103.43774
Sep 15, 2026Joel ReissSaleSEC code SCommon Stock, $0.01 par value274 shares$1,102.48934
Sep 15, 2026Joel ReissSaleSEC code SCommon Stock, $0.01 par value166 shares$1,101.52434
Sep 15, 2026Joel ReissSaleSEC code SCommon Stock, $0.01 par value60 shares$1,100.40554
Sep 15, 2026Joel ReissSaleSEC code SCommon Stock, $0.01 par value90 shares$1,099.14294

Published 12 of 50 source candidates under the current reviewed security-resolution rules.

Covered securities

SecurityInstrument familyCovered positionsCovered value
Common Stock, $0.01 par valueordinary-share1$4.02M

Coverage and interpretation

Current holdings: direct positions that the reviewed ownership data can trace to an exact reporting owner, legal security, and current-basis quantity.

Current value: the existing published company-position valuation. This lab does not recalculate security values or infer missing positions.

Transactions: historical flow observations only. They are not used to reconstruct current ownership and are shown only for companies where recent transaction history is currently published.

Not included here: a claim of total insider ownership, total personal wealth, institutional 13F ownership, or an investment recommendation.