TDG

TRANSDIGM GROUP INC

Data as of 2026 Q2 (06-30) · 13F snapshot

Summary

TRANSDIGM GROUP INC (TDG) is held as common stock by 9 tracked hedge-fund managers, with a combined reported value of ~$419.63M; the largest are Ken Griffin, Dan Loeb, Joel Greenblatt. 4 tracked managers also disclosed PUT or CALL positions, reported separately below. This quarter: 5 added, 4 trimmed. 20 public STOCK Act / OGE trade disclosures are on record. Data as of 2026 Q2, from public SEC 13F filings, delayed up to ~45 days.

Attention · HighThis quarter · Mixed

Common-stock holders94 also report options

Congress trades20

Price$1109vs quarter-end-16.73%

Sectors2

This quarter's moves

New0

Added5

Trimmed / sold4

Top holder

Ken Griffin

Common-stock positions

PUT and CALL disclosures are excluded from these holder counts and values.

Dan LoebBig add

Value $105.23M2.3% of portfolio79,0002026 Q2

Investor	Period	Value	Shares	% of portfolio	Action
Dan Loeb	2026 Q2	$105.23M	79,000	2.3%	Big add

PUT / CALL disclosures

Reported separately: 13F option values are not common-stock ownership and do not reveal the full strategy or economic exposure.

Ken GriffinPUT—

Value $54.61M— of portfolio41,0002026 Q2

Ken GriffinCALL—

Value $52.62M— of portfolio39,5002026 Q2

Paul Tudor JonesCALL—

Value $4.66M— of portfolio3,5002026 Q2

Steven CohenPUT—

Value $3.46M— of portfolio2,6002026 Q2

Steven CohenCALL—

Value $3.20M— of portfolio2,4002026 Q2

Izzy EnglanderCALL—

Value $799.2K— of portfolio6002026 Q2

Izzy EnglanderPUT—

Value $532.8K— of portfolio4002026 Q2

Investor	Period	Value	Shares	% of portfolio	Action
Ken GriffinPUT	2026 Q2	$54.61M	41,000	—	—
Ken GriffinCALL	2026 Q2	$52.62M	39,500	—	—
Paul Tudor JonesCALL	2026 Q2	$4.66M	3,500	—	—
Steven CohenPUT	2026 Q2	$3.46M	2,600	—	—
Steven CohenCALL	2026 Q2	$3.20M	2,400	—	—
Izzy EnglanderCALL	2026 Q2	$799.2K	600	—	—
Izzy EnglanderPUT	2026 Q2	$532.8K	400	—	—

Insider Trading

Officers · directors · Form 4

Open-market purchases and sales (P/S)13

Joel Reiss
Co-Chief Operating Officer
Sell$130.5K
120 @ $1087Traded 2026-09-15Filed 2026-09-16
Joel Reiss
Co-Chief Operating Officer
Sell$76.3K
70 @ $1090Traded 2026-09-15Filed 2026-09-16
Joel Reiss
Co-Chief Operating Officer
Sell$10.9K
10 @ $1088Traded 2026-09-15Filed 2026-09-16
Joel Reiss
Co-Chief Operating Officer
Sell$260.4K
240 @ $1085Traded 2026-09-15Filed 2026-09-16
Joel Reiss
Co-Chief Operating Officer
Sell$184.2K
170 @ $1084Traded 2026-09-15Filed 2026-09-16
Joel Reiss
Co-Chief Operating Officer
Sell$119.5K
110 @ $1086Traded 2026-09-15Filed 2026-09-16
Joel Reiss
Co-Chief Operating Officer
Sell$109.1K
100 @ $1091Traded 2026-09-15Filed 2026-09-16
Joel Reiss
Co-Chief Operating Officer
Sell$231.7K
210 @ $1103Traded 2026-09-15Filed 2026-09-16
Joel Reiss
Co-Chief Operating Officer
Sell$5.5K
5 @ $1105Traded 2026-09-15Filed 2026-09-16
Joel Reiss
Co-Chief Operating Officer
Sell$182.9K
166 @ $1102Traded 2026-09-15Filed 2026-09-16
Joel Reiss
Co-Chief Operating Officer
Sell$138.1K
125 @ $1105Traded 2026-09-15Filed 2026-09-16
Joel Reiss
Co-Chief Operating Officer
Sell$335.7K
310 @ $1083Traded 2026-09-15Filed 2026-09-16
Joel Reiss
Co-Chief Operating Officer
Sell$66.0K
60 @ $1100Traded 2026-09-15Filed 2026-09-16

Insider transactions are public SEC Form 4 disclosures (company officers, directors, 10% owners), for research only — not investment advice.

Public SEC 13F filings may appear up to 45 days after quarter-end; STOCK Act / OGE trade filings are generally due within 45 days but may be late. Partial data only — research, not investment advice.