Aigen Investment Management’s United Microelectronic UMC Stock Holding History

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

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-53,905	Closed	-$409K	–	994
2025 Q3	$409K	Buy	+53,905	New	+$382K	0.06%	454
2025 Q1	–	Sell	-204,666	Closed	-$1.33M	–	1046
2024 Q4	$1.33M	Buy	+204,666	New	+$1.47M	0.23%	121
2024 Q1	–	Sell	-22,769	Closed	-$193K	–	1023
2023 Q4	$193K	Buy	+22,769	New	+$174K	0.03%	674
2022 Q3	–	Sell	-90,386	Closed	-$612K	–	773
2022 Q2	$612K	Buy	90,386 +43,820	+94%	+$359K	0.1%	266
2022 Q1	$425K	Buy	46,566 +8,373	+22%	+$83K	0.07%	309
2021 Q4	$454K	Sell	38,193 -157,074	-80%	-$1.75M	0.03%	661
2021 Q3	$2.23M	Buy	195,267 +158,235	+427%	+$1.7M	0.43%	62
2021 Q2	$350K	Sell	37,032 -116,795	-76%	-$1.09M	0.06%	295
2021 Q1	$1.4M	Buy	+153,827	New	+$1.42M	0.19%	131

Other funds holding UMC

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Rafferty Asset Management New York $43.9B AUM 121.74% 1-Year Est. Return

Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return

Barclays London, United Kingdom $521B AUM 51.41% 1-Year Est. Return

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return

Aigen Investment Management's UMC Position: Q4 2025 in Review

Aigen Investment Management sold out of United Microelectronic (UMC) in Q4 2025, closing a stake of 53,905 shares — an estimated $409K sold.

Aigen Investment Management first reported a position in UMC in Q1 2021 and held it in 9 quarters. The position peaked at $2.23M in Q3 2021. 270 funds tracked by Wall St. Rank hold UMC as of Q4 2025.

Aigen Investment Management reported no remaining United Microelectronic position as of Q4 2025 after selling out during the quarter.
Aigen Investment Management sold 53,905 United Microelectronic shares in Q4 2025, an estimated $409K.
Aigen Investment Management first reported a position in United Microelectronic in Q1 2021 and held it in 9 quarters.
Aigen Investment Management's United Microelectronic position peaked at $2.23M in Q3 2021.
270 funds tracked by Wall St. Rank held United Microelectronic as of Q4 2025.

Based on Aigen Investment Management's 13F filing for Q4 2025, filed 13 Feb 2026.