Company · Ownership research

TransDigm Group INC TDG

CIK 0001260221 · CUSIP 893641100

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

4 CUSIPs are reported under this ticker. This page covers the one most managers report; the others are not merged in.

This page lists the top 20 of 1005 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	Capital International Investors CIK 1562230 · View history	$8.07B 6,319,973 shares	1.66%	-247.69K(-3.8%)Reduced	SEC filing ↗ Aug 13, 2024	▾
02	VANGUARD GROUP INC CIK 102909 · View history	$7.86B 6,152,028 shares	0.15%	+104.94K(+1.7%)Added	SEC filing ↗ Aug 13, 2024	▾
03	BlackRock Inc. CIK 1364742 · View history	$4.98B 3,895,760 shares	0.11%	-576.68K(-12.9%)Reduced	SEC filing ↗ Aug 13, 2024	▾
04	Capital World Investors CIK 1422849 · View history	$4.52B 3,536,421 shares	0.74%	+882(0.0%)Added	SEC filing ↗ Aug 13, 2024	▾
05	STATE STREET CORP CIK 93751 · View history	$2.81B 2,199,710 shares	0.12%	+32.30K(+1.5%)Added	SEC filing ↗ Aug 14, 2024	▾
06	Capital Research Global Investors CIK 1422848 · View history	$2.58B 2,019,814 shares	0.57%	+54.17K(+2.8%)Added	SEC filing ↗ Aug 13, 2024	▾
07	PRINCIPAL FINANCIAL GROUP INC CIK 1126328 · View history	$2.55B 1,999,758 shares	1.52%	-206.36K(-9.4%)Reduced	SEC filing ↗ Jul 29, 2024	▾
08	FMR LLC CIK 315066 · View history	$2.40B 1,876,577 shares	0.15%	+825(0.0%)Added	SEC filing ↗ Aug 13, 2024	▾
09	JPMORGAN CHASE & CO CIK 19617 · Amended · View history	$2.33B 1,824,485 shares	0.20%	+155.03K(+9.3%)Added	SEC filing ↗ Dec 26, 2024	▾
10	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$1.42B 1,114,129 shares	0.12%	-139.77K(-11.1%)Reduced	SEC filing ↗ Aug 9, 2024	▾
11	Matrix Capital Management Company, LP CIK 1410830 · View history	$1.40B 1,094,900 shares	10.65%	0(0.0%)Unchanged	SEC filing ↗ Aug 14, 2024	▾
12	MORGAN STANLEY CIK 895421 · Amended · View history	$1.40B 1,093,446 shares	0.11%	+14.23K(+1.3%)Added	SEC filing ↗ May 14, 2025	▾
13	ALTAROCK PARTNERS LP CIK 1631014 · View history	$1.37B 1,073,264 shares	28.22%	-83.13K(-7.2%)Reduced	SEC filing ↗ Aug 14, 2024	▾
14	NORGES BANK CIK 1374170 · View history	$1.07B 836,522 shares	0.16%	+34.76K(+4.3%)Added	SEC filing ↗ Aug 14, 2024	▾
15	Stockbridge Partners LLC CIK 1505183 · View history	$902.42M 706,338 shares	18.66%	-63.71K(-8.3%)Reduced	SEC filing ↗ Aug 14, 2024	▾
16	Invesco Ltd. CIK 914208 · View history	$836.37M 654,633 shares	0.18%	-935(-0.1%)Reduced	SEC filing ↗ Aug 13, 2024	▾
17	PRICE T ROWE ASSOCIATES INC /MD/ CIK 80255 · View history	$667.07M 522,124 shares	0.08%	-19.53K(-3.6%)Reduced	SEC filing ↗ Aug 14, 2024	▾
18	PRIMECAP MANAGEMENT CO/CA/ CIK 763212 · View history	$654.51M 512,294 shares	0.47%	0(0.0%)Unchanged	SEC filing ↗ Aug 9, 2024	▾
19	WINDACRE PARTNERSHIP LLC CIK 1599383 · View history	$651.96M 510,300 shares	8.58%	+12.30K(+2.5%)Added	SEC filing ↗ Aug 14, 2024	▾
20	NORTHERN TRUST CORP CIK 73124 · View history	$588.96M 460,982 shares	0.10%	-10.47K(-2.2%)Reduced	SEC filing ↗ Aug 14, 2024	▾

Showing 20 / 1,005 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

1,005

Cancelled or null records excluded

Disclosed shares

53,199,072

Not deduplicated across managers

Disclosed value

$67.95B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

TransDigm Group INC · Q2 2024

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.