§ AEROSPACE & DEFENSE
USD · Aerospace & Defense

TDG

TRANSDIGM GROUP INC
USDSector · Aerospace & DefenseMarket cap · $65.9BBeta · 0.97
LAST · MARKET CLOSE · OCT 05
1091.56
+1.18 ▲ 0.11%PREV CLOSE · $1090.38
§ 01 · PRICE
Price action
1D5D1M6MYTD1YMAX
OPEN 1087.01HIGH 1097.78LOW 1078.0052W 1123.61 — 1623.83
EVENTSSEP 16 · RJ SELLJUN 30 · EARNINGS +4.5%

§ 03 · SIGNAL STACK · WHAT THE INPUTS SAY

13F FLOW
596 increased/new, 381 decreased/exited (13F)
AC 13F Analysis
INSIDER
−$573K
3 txns · 90d

§ 04 · FUNDAMENTALS · THE BOOKS

P/E32.5P/B5.98
EPS (TTM)34.84Dividend0.00%
§ 05 · WHO OWNS IT
Top institutional holders
All holders →
FundShares% portΔ Q/Q
Capital International Investors5.5M1.5%−16%
Capital World Investors4.7M0.7%+18%
BlackRock, Inc.4.6M0.1%+7%
VANGUARD CAPITAL MANAGEMENT LLC3.7Mn/an/a
Capital Research Global Investors3.1M0.6%+27%
VANGUARD PORTFOLIO MANAGEMENT LLC2.6Mn/an/a
◇ AC INTELLIGENCE

Top institutional owners for TDG as of the most recent 13F reporting period (Q1 2026 · Period ended Mar 31). Δ Q/Q reflects share-count change vs. the prior filing — positive green means adding, negative red means trimming. Cross-reference with the ownership-mix bars below to see which strategy cohort is driving the flow.

§ 06 · WHO OWNS IT · BY STRATEGY

OTHER35.7% · 901 holders
QUALITY / COMPOUNDER31.9% · 43 holders
PASSIVE / INDEX19.7% · 14 holders
DEALER / BANK13.9% · 77 holders
INCOME / DEFENSIVE5.8% · 44 holders
SYSTEMATIC / QUANT0.5% · 14 holders
TACTICAL / MACRO0.4% · 6 holders
ACTIVIST0.0% · 1 holder
GROWTH / MOMENTUM0.0% · 1 holder
DEEP VALUE0.0% · 1 holder
◇ AC INTELLIGENCE

Ownership mix by behavioral cohort. Top bars indicate which style of capital dominates the float — passive indexing, quality compounders, dealer/bank, systematic quant, etc. Big quality-compounder share means concentrated active conviction; heavy passive share means flows are dictated by index rebalances, not fundamentals.

§ 07 · INSIDER ACTIVITY · LAST 180 DAYS

DateInsiderActionShares$ value
SEP 16Reiss JoelSELL20−$22K
JUL 21Howley W NicholasSELL440−$539K
JUL 17Reiss JoelSELL10−$12K
JUN 22Howley W NicholasSELL176−$235K
JUN 16Reiss JoelSELL30−$39K
MAY 19Howley W NicholasSELL132−$157K
◇ AC INTELLIGENCE

0 insider buys, 9 sells in the last 180 days. Scheduled 10b5-1 sales are pre-programmed and neutral; discretionary clusters are the tape worth reading. Cross-reference with the signal stack above for context.

§ 08 · COVERAGE · OUR RECENT NOTES

No notes mention TDG yet.