Aigen Investment Management’s TransDigm Group TDG Stock Holding History

Aigen Investment Management’s Portfolio TDG Stock Details TDG Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$795K	Buy	+686	New	+$899K	0.2%	135
2025 Q4	–	Sell	-545	Closed	-$718K	–	968
2025 Q3	$718K	Buy	+545	New	+$779K	0.11%	283
2025 Q1	–	Sell	-568	Closed	-$720K	–	1025
2024 Q4	$720K	Sell	568 -740	-57%	-$975K	0.13%	240
2024 Q3	$1.87M	Buy	+1,308	New	+$1.7M	0.37%	53
2024 Q1	–	Sell	-1,035	Closed	-$1.05M	–	1002
2023 Q4	$1.05M	Sell	1,035 -2,059	-67%	-$1.9M	0.19%	147
2023 Q3	$2.61M	Buy	+3,094	New	+$2.71M	0.49%	17
2023 Q2	–	Sell	-1,937	Closed	-$1.43M	–	958
2023 Q1	$1.43M	Sell	1,937 -119	-6%	-$85K	0.2%	130
2022 Q4	$1.29M	Buy	2,056 +1,343	+188%	+$791K	0.18%	145
2022 Q3	$374K	Buy	713 +78	+12%	+$46.5K	0.05%	364
2022 Q2	$341K	Buy	+635	New	+$375K	0.06%	376
2020 Q4	–	Sell	-398	Closed	-$189K	–	1043
2020 Q3	$189K	Buy	+398	New	+$187K	0.02%	661
2020 Q2	–	Sell	-8,711	Closed	-$2.79M	–	1265
2020 Q1	$2.79M	Buy	+8,711	New	+$4.75M	0.37%	43

Other funds holding TDG

Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return

Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Principal Financial Group Des Moines, Iowa $187B AUM 18.48% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Aigen Investment Management's TDG Position: Q1 2026 in Review

Aigen Investment Management opened a new position in TransDigm Group (TDG) in Q1 2026: 686 shares worth $795K. The stake represents 0.2% of the portfolio and ranks #135 among its holdings. This is a return to the name: Aigen Investment Management previously reported a position in TDG as recently as Q3 2025.

Aigen Investment Management first reported a position in TDG in Q1 2020 and has held it in 12 quarters since. The position peaked at $2.79M in Q1 2020. 1,107 funds tracked by Wall St. Rank hold TDG as of Q1 2026.

Aigen Investment Management held 686 shares of TransDigm Group worth $795K as of Q1 2026.
TransDigm Group was a new Aigen Investment Management position in Q1 2026.
TransDigm Group made up 0.2% of Aigen Investment Management's portfolio in Q1 2026, its #135 holding.
Aigen Investment Management first reported a position in TransDigm Group in Q1 2020 and has held it in 12 quarters since.
Aigen Investment Management's TransDigm Group position peaked at $2.79M in Q1 2020.
1,107 funds tracked by Wall St. Rank held TransDigm Group as of Q1 2026.

Based on Aigen Investment Management's 13F filing for Q1 2026, filed 15 May 2026.