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Insider · CIK 0001234544

Robert J Small

director

Files at TDG (TransDigm Group INC). First filing Dec 16, 2024, latest Feb 27, 2026.

In brief

Robert J Small files SEC Form 4 as director at TDG (TransDigm Group INC). Since Dec 16, 2024, Robert J Small has reported 1 open-market buy worth $1,285 and 5 open-market sells worth $247M, the latest filed on Feb 27, 2026.

A track record needs three past buys with six months of prices behind them; Robert J Small has 0, so none is measured yet.

The newest scored trade: bought $1,285 of TDG on Feb 25, 2026, filed Feb 27, 2026, scored 10 (weak). In the last 12 months: 1 buy worth $1,285 and 2 sells worth $128M.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
1 / 5
$1,285 bought, $247M sold

Where the trades landed

Last year at the company this insider has traded most, with each buy and sell on the bar it happened.

TDG: TransDigm Group INC

TDGOct 9, 2026 · close 1,108

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

This insider’s open-market buys and sells, scored.

ScoreCompanyValueHoldingsPrice contextFiled
10Weak
TDGbuy
TransDigm Group INC
$1,285
1 shares
+0%+12% from low-15% from high
50Moderate
TDGsell 4
TransDigm Group INC
$6.1M
4,700 shares
-46%+13% from low-14% from high
60Notable
TDGsell 4
TransDigm Group INC
$121M
90,953 shares
-21%+14% from low-13% from high
55Moderate
TDGsell 3
TransDigm Group INC
$6.4M
5,000 shares
-6%+10% from low-16% from high
65Notable
TDGsell 4
TransDigm Group INC
$65M
45,700 shares
-49%+16% from low-3% from high
55Moderate
TDGsell 4
TransDigm Group INC
$48M
38,053 shares
-6%-

Planned sales

Form 144 notices this insider filed before selling restricted or control stock, newest first.

FiledCompanySharesValueSale datePast 3 months
Dec 10, 2025 TDG
TRANSDIGM GROUP INCORPORATED
4,700
0.01% of outstanding
$6.1MDec 10, 2025none
Feb 14, 2025 TDG
TRANSDIGM GROUP INC.
3,650
0.01% of outstanding
$4.8MFeb 14, 2025$48M

Transactions

Every row this insider has filed, 35 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Sep 18, 2026TDG
TransDigm Group INC
JOther
Common Stock
+0$0.00$05,67721 d ago
Sep 18, 2026TDG
TransDigm Group INC
AGrant or award
Common Stock
+52$1,085.00$56k5,67722 d ago
Feb 25, 2026TDG
TransDigm Group INC
POpen-market purchase
Common Stockindirect: By Stockbridge Fund, L.P.
+1$1,285.00$1,285366,142Feb 27, 2026
Dec 10, 2025TDG
TransDigm Group INC
MOption exercise
Common Stock
+4,700$66.47$312k10,325Dec 11, 2025
Dec 10, 2025TDG
TransDigm Group INC
SOpen-market sale
Common Stock
-580$1,289.32$748k9,745Dec 11, 2025
Dec 10, 2025TDG
TransDigm Group INC
SOpen-market sale
Common Stock
-4,046$1,290.30$5.2M5,699Dec 11, 2025
Dec 10, 2025TDG
TransDigm Group INC
SOpen-market sale
Common Stock
-74$1,291.03$96k5,625Dec 11, 2025
Dec 10, 2025TDG
TransDigm Group INC
MOption exercise
Stock Optionderivative
-4,700$0.00$00Dec 11, 2025
Dec 9, 2025TDG
TransDigm Group INC
SOpen-market sale
Common Stockindirect: By Stockbridge Fund, L.P.
-75,673$1,335.72$101M366,141Dec 9, 2025
Dec 9, 2025TDG
TransDigm Group INC
SOpen-market sale
Common Stockindirect: By Stockbridge Partners LLC
-15,280$1,335.72$20M68,139Dec 9, 2025
Nov 4, 2025TDG
TransDigm Group INC
AGrant or award
Stock Optionderivative
+518$0.00$0518Nov 6, 2025
Sep 19, 2025TDG
TransDigm Group INC
AGrant or award
Common Stock
+44$1,288.13$57k15,625Sep 22, 2025
Sep 12, 2025TDG
TransDigm Group INC
SOpen-market sale
Common Stockindirect: By Stockbridge Partners LLC
-403$1,271.39$512k88,016Sep 16, 2025
Sep 12, 2025TDG
TransDigm Group INC
SOpen-market sale
Common Stockindirect: By Stockbridge Partners LLC
-256$1,272.45$326k87,760Sep 16, 2025
Sep 12, 2025TDG
TransDigm Group INC
SOpen-market sale
Common Stockindirect: By Stockbridge Partners LLC
-261$1,273.55$332k87,499Sep 16, 2025
Sep 12, 2025TDG
TransDigm Group INC
SOpen-market sale
Common Stockindirect: By Stockbridge Partners LLC
-488$1,274.22$622k87,011Sep 16, 2025
Sep 12, 2025TDG
TransDigm Group INC
SOpen-market sale
Common Stockindirect: By Stockbridge Partners LLC
-597$1,275.23$761k86,414Sep 16, 2025
Sep 12, 2025TDG
TransDigm Group INC
SOpen-market sale
Common Stockindirect: By Stockbridge Partners LLC
-504$1,276.41$643k85,910Sep 16, 2025
Sep 12, 2025TDG
TransDigm Group INC
SOpen-market sale
Common Stockindirect: By Stockbridge Partners LLC
-521$1,277.16$665k85,389Sep 16, 2025
Sep 12, 2025TDG
TransDigm Group INC
SOpen-market sale
Common Stockindirect: By Stockbridge Partners LLC
-300$1,278.32$383k85,089Sep 16, 2025
Sep 12, 2025TDG
TransDigm Group INC
SOpen-market sale
Common Stockindirect: By Stockbridge Partners LLC
-501$1,279.19$641k84,588Sep 16, 2025
Sep 12, 2025TDG
TransDigm Group INC
SOpen-market sale
Common Stockindirect: By Stockbridge Partners LLC
-287$1,280.54$368k84,301Sep 16, 2025
Sep 12, 2025TDG
TransDigm Group INC
SOpen-market sale
Common Stockindirect: By Stockbridge Partners LLC
-520$1,281.22$666k83,781Sep 16, 2025
Sep 12, 2025TDG
TransDigm Group INC
SOpen-market sale
Common Stockindirect: By Stockbridge Partners LLC
-149$1,282.64$191k83,632Sep 16, 2025
Sep 12, 2025TDG
TransDigm Group INC
SOpen-market sale
Common Stockindirect: By Stockbridge Partners LLC
-197$1,283.19$253k83,435Sep 16, 2025
Sep 12, 2025TDG
TransDigm Group INC
SOpen-market sale
Common Stockindirect: By Stockbridge Partners LLC
-16$1,284.17$21k83,419Sep 16, 2025
Sep 15, 2025TDG
TransDigm Group INC
GGift
Common Stock
-10,000$0.00$05,581Sep 16, 2025
Sep 2, 2025TDG
TransDigm Group INC
JOther
Common Stockindirect: By Stockbridge Fund, L.P.
-2,318$0.00$0441,814Sep 4, 2025
Jun 10, 2025TDG
TransDigm Group INC
SOpen-market sale
Common Stockindirect: By Stockbridge Partners LLC
-5,200$1,425.01$7.4M88,419Jun 12, 2025
Jun 10, 2025TDG
TransDigm Group INC
SOpen-market sale
Common Stockindirect: By Stockbridge Fund, L.P.
-40,500$1,425.01$58M444,132Jun 12, 2025
Dec 12, 2024TDG
TransDigm Group INC
SOpen-market sale
Common Stockindirect: By Stockbridge Fund, L.P.
-12,053$1,246.81$15M593,323Dec 16, 2024
Dec 12, 2024TDG
TransDigm Group INC
SOpen-market sale
Common Stockindirect: By Stockbridge Fund, L.P.
-8,700$1,248.01$11M584,623Dec 16, 2024
Dec 12, 2024TDG
TransDigm Group INC
SOpen-market sale
Common Stockindirect: By Stockbridge Fund, L.P.
-9,300$1,250.15$12M575,323Dec 16, 2024
Dec 12, 2024TDG
TransDigm Group INC
SOpen-market sale
Common Stockindirect: By Stockbridge Fund, L.P.
-8,000$1,250.99$10M567,323Dec 16, 2024
Oct 31, 2024TDG
TransDigm Group INC
AGrant or award
Stock Optionderivative
+450$0.00$0450Nov 20, 2024

Questions about Robert J Small

Answered from the filings on this page, as of the latest one.

Is Robert J Small buying or selling?

In the last 12 months Robert J Small reported 1 open-market buy worth $1,285 and 2 open-market sells worth $128M on SEC Form 4; the latest was bought $1,285 of TDG on Feb 25, 2026. Grants, option exercises and tax withholding are not counted.

How did Robert J Small's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Robert J Small has 0.

Where does Robert J Small file Form 4?

Robert J Small has filed Form 4 at TDG (TransDigm Group INC). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Robert J Small: insider trades and track record | InsiderTell