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Public ownership evidence

TransDigm Group Incorporated (TDG) Ownership Disclosures

Read TDG insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-10-14T02:54:47.600Z

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2026-09-212026-09-18Palmer PeterA34Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-09-18 and its public availability date is 2026-09-21. Subtracting those calendar dates gives 3 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code A: a award. An award is an acquisition but is not an open-market purchase. A purchase-following rule must not count it as code P.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC 0001542765-26-000001 ↗SEC 0001352573-26-000014 ↗SEC 0002148570-26-000003 ↗

Recent Form 4 activity

Inspect all 50 displayed rows: Recent Form 4 activity

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2026-09-212026-09-18Palmer PeterA34Not reported
2026-09-212026-09-18Howley W NicholasA126Not reported
2026-09-212026-09-18Krasik Irina IgorevnaA13Not reported
2026-09-212026-09-18SMALL ROBERT JA52Not reported
2026-09-212026-09-18Santana MicheleA34Not reported
2026-09-212026-09-18MCCULLOUGH GARY EA41Not reported
2026-09-212026-09-18HENNESSY SEAN PA46Not reported
2026-09-212026-09-18Graff MichaelA34Not reported
2026-09-212026-09-18CRONIN JANE M.A34Not reported
2026-09-212026-09-18BARR DAVIDA46Not reported
2026-09-162026-09-15Reiss JoelS100Not reported
2026-09-162026-09-15Reiss JoelS70Not reported
2026-09-162026-09-15Reiss JoelS10Not reported
2026-09-162026-09-15Reiss JoelS120Not reported
2026-09-162026-09-15Reiss JoelS110Not reported
2026-09-162026-09-15Reiss JoelS240Not reported
2026-09-162026-09-15Reiss JoelS170Not reported
2026-09-162026-09-15Reiss JoelS20Not reported
2026-09-162026-09-15Reiss JoelS20Not reported
2026-09-162026-09-15Reiss JoelS30Not reported
2026-09-162026-09-15Reiss JoelS30Not reported
2026-09-162026-09-15Reiss JoelS40Not reported
2026-09-162026-09-15Reiss JoelS5Not reported
2026-09-162026-09-15Reiss JoelS125Not reported
2026-09-162026-09-15Reiss JoelS210Not reported
2026-09-162026-09-15Reiss JoelS274Not reported
2026-09-162026-09-15Reiss JoelS310Not reported
2026-09-162026-09-15Reiss JoelS166Not reported
2026-09-162026-09-15Reiss JoelS60Not reported
2026-09-162026-09-15Reiss JoelS90Not reported
2026-09-162026-09-15Reiss JoelS150Not reported
2026-09-162026-09-15Reiss JoelS294Not reported
2026-09-162026-09-15Reiss JoelS196Not reported
2026-09-162026-09-15Reiss JoelS225Not reported
2026-09-162026-09-15Reiss JoelS383Not reported
2026-09-162026-09-15Reiss JoelS282Not reported
2026-09-162026-09-15Reiss JoelS170Not reported
2026-08-202026-08-18Howley W NicholasS190Not reported
2026-08-202026-08-18Howley W NicholasS1,313Not reported
2026-08-202026-08-18Howley W NicholasS3,980Not reported
2026-08-202026-08-18Howley W NicholasS520Not reported
2026-08-202026-08-18Howley W NicholasS250Not reported
2026-08-202026-08-18Howley W NicholasS140Not reported
2026-08-202026-08-18Howley W NicholasS270Not reported
2026-08-202026-08-18Howley W NicholasS450Not reported
2026-08-202026-08-18Howley W NicholasS1,055Not reported
2026-08-202026-08-18Howley W NicholasS830Not reported
2026-08-202026-08-18Howley W NicholasS570Not reported
2026-08-202026-08-18Howley W NicholasS290Not reported
2026-08-202026-08-18Howley W NicholasS70Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

Inspect all 50 displayed rows: Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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Cornerstone Financial Management LLC2026-06-302026-08-2916$21,313None
Cornerstone Financial Management LLC2026-03-312026-08-2910$11,590None
Cornerstone Financial Management LLC2025-12-312026-08-298$10,639None
B. Riley Wealth Advisors, Inc.2025-03-312026-08-29560$774,245None
Advisors Asset Management, Inc.2021-12-312026-08-283,612$2,298,243None
Advisors Asset Management, Inc.2022-12-312026-08-284,632$2,916,539None
Advisors Asset Management, Inc.2020-06-302026-08-288,014$3,542,589None
Advisors Asset Management, Inc.2022-06-302026-08-284,127$2,215,000None
Advisors Asset Management, Inc.2021-09-302026-08-284,488$2,803,000None
Corient Private Wealth LP2026-06-302026-08-2863,617$84,741,868None
Corient Private Wealth LP2026-06-302026-08-28685$911,787None
Principia Wealth Advisory, LLC2026-06-302026-08-274$5,328None
Principia Wealth Advisory, LLC2026-03-312026-08-274$4,636None
Advisors Asset Management, Inc.2024-03-312026-08-274,482$5,520,031None
Advisors Asset Management, Inc.2025-03-312026-08-274,277$5,916,331None
Advisors Asset Management, Inc.2022-09-302026-08-274,273$2,243,000None
Advisors Asset Management, Inc.2020-12-312026-08-276,062$3,751,000None
Advisors Asset Management, Inc.2022-03-312026-08-273,918$2,552,734None
Advisors Asset Management, Inc.2023-06-302026-08-274,919$4,398,422None
Advisors Asset Management, Inc.2023-09-302026-08-274,759$4,012,456None
Advisors Asset Management, Inc.2023-03-312026-08-274,814$3,548,159None
Advisors Asset Management, Inc.2021-03-312026-08-275,444$3,200,636None
Advisors Asset Management, Inc.2021-06-302026-08-274,962$3,212,000None
Advisors Asset Management, Inc.2020-09-302026-08-277,048$3,348,646None
Advisors Asset Management, Inc.2025-09-302026-08-274,711$6,209,192None
Advisors Asset Management, Inc.2023-12-312026-08-274,631$4,684,720None
Advisors Asset Management, Inc.2019-12-312026-08-269,517$5,329,520None
Blacksheep Fund Management Ltd2026-06-302026-08-2645,754$60,946,158None
Advisors Asset Management, Inc.2025-06-302026-08-254,343$6,604,140None
CYBER HORNET ETFs LLC2026-06-302026-08-25151$201,138None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2584,346$112,352,246None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25112,352,246$84,346,000None
Kings Path Partners LLC2026-03-312026-08-2255$63,743None
Advisors Asset Management, Inc.2024-09-302026-08-224,508$6,433,502None
Advisors Asset Management, Inc.2024-06-302026-08-224,581$5,852,731None
Advisors Asset Management, Inc.2024-12-312026-08-224,280$5,423,958None
Advisors Asset Management, Inc.2025-12-312026-08-224,917$6,538,872None
Advisors Asset Management, Inc.2020-03-312026-08-228,774$2,809,347None
Assenagon Asset Management S.A.2026-06-302026-08-22925$1,232,137None
Kingsview Wealth Management, LLC2026-06-302026-08-203,695$4,922,015None
Sustainable Insight Capital Management, LLC2026-06-302026-08-205,115$6,813,385None
Archer Investment Corp2026-06-302026-08-2016$21,313None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-202,499$3,329,188None
Beacon Pointe Advisors, LLC2026-06-302026-08-191,213$1,615,765None
Advisors Asset Management, Inc.2019-03-312026-08-1911,760$5,338,922None
Advisors Asset Management, Inc.2019-09-302026-08-1910,318$5,372,273None
Advisors Asset Management, Inc.2019-06-302026-08-1911,244$5,439,847None
Ensign Peak Advisors, Inc2026-03-312026-08-1931,373$36,360,052None
Ensign Peak Advisors, Inc2025-12-312026-08-1934,890$46,398,467None
Ensign Peak Advisors, Inc2025-09-302026-08-1932,574$42,933,183None

90-day public filing window, up to 50 source positions.

Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗B. Riley Wealth Advisors, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Corient Private Wealth LP ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.