TransDigm Group Ownership | Who Owns TransDigm Group?

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TransDigm Group Ownership Summary

TransDigm Group is owned by 39.34% institutional investors, 0.38% insiders, and 60.28% retail investors. Vanguard group is the largest institutional shareholder, holding 11.73% of TDG shares. Capital Group Fundamental Invtrs Comp is the top mutual fund, with 4.94% of its assets in TransDigm Group shares.

TDG Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	TransDigm Group	39.34%	0.38%	60.28%
Sector	Industrials Stocks	46.68%	12.61%	40.71%
Industry	Defense Stocks	47.02%	10.48%	42.50%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	6.81M	11.73%	$8.98B
Capital investors	6.49M	11.17%	$8.55B
Blackrock funding, inc. /de	4.20M	7.22%	$5.53B
Capital world investors	3.94M	6.78%	$5.19B
Blackrock	3.90M	6.74%	$4.98B
State street	2.39M	4.11%	$3.15B
Principal financial group	2.38M	4.10%	$3.14B
Fmr	2.28M	3.93%	$3.01B
Capital research global investors	2.21M	3.80%	$2.91B
Jpmorgan chase	1.26M	2.17%	$1.66B

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Ampfield management	32.99K	48.46%	$43.48M
Blacksheep fund management	38.22K	42.95%	$50.37M
Brx global lp	28.28K	35.60%	$37.27M
Altarock partners	976.39K	23.53%	$1.29B
Anabranch capital management, lp	27.55K	22.86%	$36.32M
Oakcliff capital partners, lp	24.17K	13.75%	$31.86M
Stockbridge partners	525.23K	13.39%	$692.27M
Bluegrass capital partners lp	15.50K	13.37%	$20.43M
Q global advisors	6.28K	12.99%	$8.27M
Center lake capital management	5.00K	12.40%	$6.39M

Top Buyers

Holder	Shares	% Assets	Change
Norges bank	768.07K	0.13%	768.07K
Soroban capital partners lp	581.11K	5.78%	565.54K
Fmr	2.28M	0.16%	410.00K
Principal financial group	2.38M	1.58%	367.76K
Franklin resources	475.49K	0.16%	293.82K

Top Sellers

Holder	Shares	% Assets	Change
Matrix capital management company, lp	-	-	-1.09M
Jpmorgan chase	1.26M	0.10%	-733.45K
Blackrock	3.90M	0.11%	-576.68K
Commonwealth of pennsylvania public school empls retrmt sys	13.53K	0.09%	-200.24K
Bain capital public equity management ii	-	-	-105.09K

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	768.07K	0.13%	768.07K	$973.35M
Thornburg investment management	47.64K	0.82%	47.64K	$62.79M
Blacksheep fund management	38.22K	42.95%	38.22K	$50.37M
D1 capital partners	30.80K	0.47%	30.80K	$40.60M
Danske bank	23.24K	1.57%	23.24K	$30.63M

Sold Out

Holder	Change
Ruedi wealth management	-1.00
Stephens consulting	-1.00
Valley national advisers	-1.00
American capital advisory	-1.00
North star investment management	-1.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Sep 30, 2025	675	-39.95%	22,856,914	-56.60%	39	0.48%	313	-46.13%	236	-30.18%
Jun 30, 2025	1,122	1.81%	54,242,927	3.30%	93	1.14%	582	6.99%	334	-8.74%
Mar 31, 2025	16	-98.50%	716,311	-98.65%	1	0.01%	4	-99.28%	4	-98.76%
Dec 31, 2024	695	-33.75%	39,618,176	-22.44%	68	0.88%	364	-28.21%	208	-39.88%
Sep 30, 2024	1,044	1.95%	51,044,832	-4.09%	88	1.04%	506	-4.53%	344	20.70%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Capital Group Fundamental Invtrs Comp	2.78M	4.94%	-42.36K
American Funds Fundamental Invs A	2.78M	4.94%	-42.36K
American Funds Growth Fund of Amer A	2.69M	4.78%	-5.28K
Capital Group Growth Fnd of Amer Comp	2.69M	4.78%	-5.28K
VA CollegeAmerica Amcap 529A	1.95M	3.46%	-
Capital Group AMCAP Composite	1.85M	3.29%	-51.18K
American Funds AMCAP A	1.85M	3.29%	-51.18K
Vanguard Total Stock Mkt Idx Inv	1.76M	3.13%	-41.19K
Vanguard US Total Market Shares ETF	1.69M	3.01%	7.23K
Vanguard Institutional 500 Index Trust	1.60M	2.84%	10.94K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Dec 15, 2025	Reiss Joel	Co-Chief Operating Officer	Sell	$282.84K
Dec 15, 2025	Reiss Joel	Co-Chief Operating Officer	Sell	$102.62K
Dec 15, 2025	Reiss Joel	Co-Chief Operating Officer	Sell	$359.44K
Dec 15, 2025	Reiss Joel	Co-Chief Operating Officer	Sell	$282.65K
Dec 15, 2025	Reiss Joel	Co-Chief Operating Officer	Sell	$337.11K

Insider Transactions Trends

Date	Buy	Sell
2028 Q3	-	-
2026 Q3	-	-
2025 Q3	-	22
2025 Q2	-	108
2025 Q1	-	190

TDG Ownership FAQ

Who Owns TransDigm Group?

TransDigm Group shareholders are primarily institutional investors at 39.34%, followed by 0.38% insiders and 60.28% retail investors. The average institutional ownership in TransDigm Group's industry, Defense Stocks, is 47.02%, which TransDigm Group falls below.

Who owns the most shares of TransDigm Group?

TransDigm Group’s largest shareholders are Vanguard group (6.81M shares, 11.73%), Capital investors (6.49M shares, 11.17%), and Blackrock funding, inc. /de (4.2M shares, 7.22%). Together, they hold 30.12% of TransDigm Group’s total shares outstanding.

Does Blackrock own TransDigm Group?

Yes, BlackRock owns 6.74% of TransDigm Group, totaling 3.9M shares as of Jun 2024. This represents 0.11% of BlackRock's total assets, with a market value of 4.98B$. In the last quarter, BlackRock decreased its holdings by -577K shares, a -12.89% change.

Who is TransDigm Group’s biggest shareholder by percentage of total assets invested?

Ampfield management is TransDigm Group’s biggest shareholder by percentage of total assets invested, with 48.46% of its assets in 32.99K TransDigm Group shares, valued at 43.48M$.

Who is the top mutual fund holder of TransDigm Group shares?

Capital Group Fundamental Invtrs Comp is the top mutual fund holder of TransDigm Group shares, with 4.94% of its total shares outstanding invested in 2.78M TransDigm Group shares.

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