TransDigm Group Incorporated
TransDigm Group Incorporated (TDG) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · TDG · as of Mar 31, 2025
Ownership Breakdown
1,118
Institutional Holders
▲ 34 vs Q4
$73.69B
Total Inst. Value
▲ $6.69B vs Q4
55.93M
Shares Outstanding
freeFloat 99.49%
53.32M
13F Shares Held
▲ 369,659 vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
TDG largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC aircraft parts & auxiliary equipment, nec | 6.36M | 10.95% | 10.95% | $8.80T | May 9, 2025 | ▲ 89.1K |
CAPITAL INTERNATIONAL INVESTORS aircraft parts & auxiliary equipment, nec | 6.26M | 10.77% | 10.77% | $8.66T | May 12, 2025 | ▼ 349 |
BLACKROCK, INC. aircraft parts & auxiliary equipment, nec | 4.18M | 7.20% | 7.20% | $5.79T | May 2, 2025 | ▲ 98.6K |
CAPITAL WORLD INVESTORS aircraft parts & auxiliary equipment, nec | 3.93M | 6.76% | 6.76% | $5.44T | May 12, 2025 | ▲ 137.6K |
STATE STREET CORP aircraft parts & auxiliary equipment, nec | 2.29M | 3.94% | 3.94% | $3.16T | May 15, 2025 | ▼ 23.9K |
PRINCIPAL FINANCIAL GROUP INC aircraft parts & auxiliary equipment, nec | 2.10M | 3.62% | 3.62% | $2.91T | Apr 28, 2025 | ▼ 25.2K |
JPMORGAN CHASE & CO aircraft parts & auxiliary equipment, nec | 1.99M | 3.42% | 3.42% | $2.75T | May 12, 2025 | ▼ 215.0K |
FMR LLC aircraft parts & auxiliary equipment, nec | 1.91M | 3.29% | 3.29% | $2.65T | May 12, 2025 | ▼ 12.3K |
CAPITAL RESEARCH GLOBAL INVESTORS aircraft parts & auxiliary equipment, nec | 1.84M | 3.17% | 3.17% | $2.55T | May 12, 2025 | ▼ 66.7K |
MORGAN STANLEY aircraft parts & auxiliary equipment, nec | 1.42M | 2.44% | 2.44% | $1.96T | May 15, 2025 | ▼ 18.9K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
22
Increased
+1.42M shares1
New Positions
first time holders26
Decreased
−852.0K shares0
Sold Out
fully exitedNet shares change (top 50)
+571.4K
+1.42M / −852.0K
Net new holders
-3
1 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
TDG insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
0
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Howley W Nicholas director | May 18, 2026 | Sale | 40 | $1145.16 | $45.8K | 31.6K | Form 4 ↗ |
Howley W Nicholas director | May 18, 2026 | Sale | 60 | $1146.42 | $68.8K | 31.6K | Form 4 ↗ |
Howley W Nicholas director | May 18, 2026 | Sale | 80 | $1150.17 | $92.0K | 31.5K | Form 4 ↗ |
Howley W Nicholas director | May 18, 2026 | Sale | 80 | $1160.00 | $92.8K | 31.4K | Form 4 ↗ |
Howley W Nicholas director | May 18, 2026 | Sale | 50 | $1162.94 | $58.1K | 31.4K | Form 4 ↗ |
Howley W Nicholas director | May 18, 2026 | Sale | 23 | $1163.98 | $26.8K | 31.3K | Form 4 ↗ |
Howley W Nicholas director | May 18, 2026 | Sale | 110 | $1165.51 | $128.2K | 31.2K | Form 4 ↗ |
Howley W Nicholas director | May 18, 2026 | Sale | 586 | $1167.05 | $683.9K | 30.7K | Form 4 ↗ |
Howley W Nicholas director | May 18, 2026 | Sale | 463 | $1168.33 | $540.9K | 30.2K | Form 4 ↗ |
Howley W Nicholas director | May 18, 2026 | Sale | 390 | $1169.24 | $456.0K | 29.8K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
TransDigm Group Incorporated (TDG) is primarily owned by institutional investors, who hold approximately 95.3% of total shares outstanding. Company insiders own approximately 0.51%, while retail and public investors account for the remaining 4.16%.
The largest institutional shareholder of TransDigm Group Incorporated is VANGUARD GROUP INC, holding approximately 6.36 million shares — equal to 10.95% of outstanding shares — as of March 31, 2025.
A total of 1,118 institutional investors currently hold TDG stock, with a combined institutional value of approximately $73.69 billion as of the most recent 13F filing period.
Frequently asked questions
TDG ownershipTransDigm Group Incorporated (TDG) is primarily owned by institutional investors, who hold approximately 95.3% of shares. The largest shareholder is VANGUARD GROUP INC with a 10.95% stake. Company insiders hold 0.51%. Data sourced from SEC Form 13F as of March 31, 2025.