Stocks › TDG
TransDigm Group INC
TDG·NYSE·
United States·USD
United States·USD$1103.33
+10.67 (+0.98%)
Close · Oct 6, 2026 · Close Prices from Tiingo.com
TDG
TransDigm Group INC · NYSE
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
TDGS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
Congressional Trades
Recent trades of TDG by members of U.S. Congress · 74 on record · 20 in the last 12 months
Whale Activity
Position changes in TDG reported for 2026-09-30 by 1 tracked institutional filer
- Increased0
- New0
- Held0
- Decreased0
- Closed0
- No prior filing1
| Filer | Shares | Value | Change |
|---|---|---|---|
| ARGENT CAPITAL MANAGEMENT LLC | 63.6K | $68.9M | — |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Net shares bought (+) or sold (−) on the open market by TDG insiders, by quarter · Form 4
Recent Insider Transactions
9,378 transactions on record · newest first
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| Reiss JoelCo-Chief Operating Officer | Sale | −90 | $1099.14 | $99K | Sep 15, 2026 | Form 4 ↗ |
| Reiss JoelCo-Chief Operating Officer | Sale | −70 | $1090.06 | $76K | Sep 15, 2026 | Form 4 ↗ |
| Reiss JoelCo-Chief Operating Officer | Sale | −60 | $1100.41 | $66K | Sep 15, 2026 | Form 4 ↗ |
| Reiss JoelCo-Chief Operating Officer | Sale | −5 | $1105.28 | $6K | Sep 15, 2026 | Form 4 ↗ |
| Reiss JoelCo-Chief Operating Officer | Sale | −40 | $1106.69 | $44K | Sep 15, 2026 | Form 4 ↗ |
| Reiss JoelCo-Chief Operating Officer | Sale | −383 | $1094.06 | $419K | Sep 15, 2026 | Form 4 ↗ |
| Reiss JoelCo-Chief Operating Officer | Sale | −310 | $1082.96 | $336K | Sep 15, 2026 | Form 4 ↗ |
| Reiss JoelCo-Chief Operating Officer | Sale | −30 | $1112.38 | $33K | Sep 15, 2026 | Form 4 ↗ |
| Reiss JoelCo-Chief Operating Officer | Sale | −30 | $1108.34 | $33K | Sep 15, 2026 | Form 4 ↗ |
| Reiss JoelCo-Chief Operating Officer | Sale | −294 | $1097.26 | $323K | Sep 15, 2026 | Form 4 ↗ |
| Reiss JoelCo-Chief Operating Officer | Sale | −282 | $1093.10 | $308K | Sep 15, 2026 | Form 4 ↗ |
| Reiss JoelCo-Chief Operating Officer | Sale | −274 | $1102.49 | $302K | Sep 15, 2026 | Form 4 ↗ |
| Reiss JoelCo-Chief Operating Officer | Sale | −240 | $1084.87 | $260K | Sep 15, 2026 | Form 4 ↗ |
| Reiss JoelCo-Chief Operating Officer | Sale | −225 | $1095.11 | $246K | Sep 15, 2026 | Form 4 ↗ |
| Reiss JoelCo-Chief Operating Officer | Sale | −210 | $1103.44 | $232K | Sep 15, 2026 | Form 4 ↗ |
| Reiss JoelCo-Chief Operating Officer | Sale | −20 | $1118.99 | $22K | Sep 15, 2026 | Form 4 ↗ |
| Reiss JoelCo-Chief Operating Officer | Sale | −20 | $1113.37 | $22K | Sep 15, 2026 | Form 4 ↗ |
| Reiss JoelCo-Chief Operating Officer | Sale | −196 | $1096.17 | $215K | Sep 15, 2026 | Form 4 ↗ |
| Reiss JoelCo-Chief Operating Officer | Sale | −170 | $1092.13 | $186K | Sep 15, 2026 | Form 4 ↗ |
| Reiss JoelCo-Chief Operating Officer | Sale | −170 | $1083.67 | $184K | Sep 15, 2026 | Form 4 ↗ |
Fund Holders
Mutual funds and ETFs holding TDG · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| American Funds Fundamental Investors | 2.8M | $3.70B | 2.04% | Jun 30, 2026 |
| Growth Fund of America | 2.5M | $3.18B | 0.88% | May 31, 2026 |
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 1.8M | $2.37B | 0.10% | Jun 30, 2026 |
| AMCAP Fund | 1.8M | $2.22B | 2.29% | May 31, 2026 |
| VANGUARD 500 INDEX FUND VANGUARD INDEX FUNDS | 1.4M | $1.93B | 0.12% | Jun 30, 2026 |
| American Balanced Fund | 1.4M | $1.93B | 0.67% | Jun 30, 2026 |
| VANGUARD MID-CAP INDEX FUND VANGUARD INDEX FUNDS | 1.2M | $1.61B | 0.72% | Jun 30, 2026 |
| MidCap Fund Principal Funds, Inc | 944.8K | $1.19B | 5.13% | Jul 31, 2026 |
| iShares Core S&P 500 ETF iShares Trust | 770.0K | $1.03B | 0.12% | Jun 30, 2026 |
| Fidelity 500 Index Fund Fidelity Concord Street Trust | 722.7K | $909.4M | 0.11% | May 31, 2026 |
Mutual funds and ETFs whose N-PORT filings list TDG's shares (CUSIP 893641100), each fund at its latest report since Mar 7, 2026, largest positions first. Bonds, options and short positions are left out.
Activist & Passive Stakes
Schedule 13D / 13G beneficial-ownership filings
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming transdigm as client
- MILLER STRATEGIES, LLCTRANSDIGM GROUP INC. · 2026 Q2 · LBR$230K
Filing ↗ - GREENBERG TRAURIG, LLPTRANSDIGM GROUP, INC. · 2026 Q2 · DEF$30K
Filing ↗ - HOLLAND & KNIGHT LLPTRANSDIGM GROUP, INC. · 2026 Q2 · DEF$70K
Filing ↗ - HOLLAND & KNIGHT LLPTRANSDIGM GROUP, INC. · 2026 Q2 · DEF—
Filing ↗ - GREENBERG TRAURIG, LLPTRANSDIGM GROUP, INC. · 2026 Q2 · DEF—
Filing ↗
Government Contracts
Federal awards to transdigm · USAspending
$1.2MAwarded · 22 contracts on record
- Department of Defense8512076044!POPPET,PRIMARY DRAI$18K
Apr 30, 2026 · ↗ - Department of Defense8512059475!FERRULLE, SWAGE, TUBE$7K
Apr 23, 2026 · ↗ - Department of Defense8512020590!COUPLING HALF,QUICK$23K
Apr 9, 2026 · ↗ - Department of Defense8511928968!COUPLING, ASSEMBLY, Q$130K
Feb 20, 2026 · ↗ - Department of Defense8511942033!COUPLING HALF,SELF-$10K
Feb 26, 2026 · ↗ - Department of Defense8511923372!COUPLING, HALF, QUICK$21K
Feb 18, 2026 · ↗ - Department of Defense8512041153!CONTROL ASSEMBLY,PU$44K
May 28, 2026 · ↗ - Department of Defense8511988494!INDICATOR,POSITION$87K
May 26, 2026 · ↗
U.S. Patents
Recent USPTO applications naming TransDigm Group INC
No USPTO patent applications found for TransDigm Group INC.
Annual Financials
From TDG's 10-K filings · XBRL
No annual XBRL figures on record for TDG. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
No stock splits in TDG's price history.
Material Events (8-K)
Corporate events filed with the SEC
- 8-K · Items 1.01, 2.03, 9.01Material agreement · Direct financial obligationSep 29, 2026
EDGAR ↗ - 8-K · Items 8.01, 9.01Other eventsSep 28, 2026
EDGAR ↗ - 8-K · Items 8.01Other eventsSep 21, 2026
EDGAR ↗ - 8-K · Items 7.01Reg FD disclosureSep 14, 2026
EDGAR ↗ - 8-K · Items 7.01Reg FD disclosureSep 14, 2026
EDGAR ↗ - 8-K · Items 7.01Reg FD disclosureSep 14, 2026
EDGAR ↗ - 8-K · Items 2.02, 9.01Results of operationsAug 4, 2026
EDGAR ↗ - 8-K · Items 8.01, 9.01Other eventsJul 27, 2026
EDGAR ↗ - 8-K · Items 5.02Officer / director changeJul 24, 2026
EDGAR ↗ - 8-K · Items 8.01Other eventsJul 13, 2026
EDGAR ↗
About TransDigm Group INC
From SEC EDGAR company records
Industry (SIC 3728)Aircraft Parts & Auxiliary Equipment, NEC
SectorIndustrials
HeadquartersCLEVELAND, OH
IncorporatedDE
SEC CIK0001260221 ↗
Former namesTD HOLDING CORP