Question 1

How many shares of UMC does Vanguard Personalized Indexing Management, LLC own?

Accepted Answer

As of 2026-Q2, Vanguard Personalized Indexing Management, LLC holds 434,448 shares of UMC (UNITED MICROELECTRON-SP ADR).

Question 2

What is Vanguard Personalized Indexing Management, LLC's UMC position worth?

Accepted Answer

As of 2026-Q2, Vanguard Personalized Indexing Management, LLC's UMC position is worth $11.8M.

Question 3

Is Vanguard Personalized Indexing Management, LLC buying or selling UMC?

Accepted Answer

In 2026-Q2, Vanguard Personalized Indexing Management, LLC increased their UMC position (+3.9% change in shares).

Question 4

When did Vanguard Personalized Indexing Management, LLC first buy UMC?

Accepted Answer

Based on available 13F filings, Vanguard Personalized Indexing Management, LLC first reported a position in UMC in 2024-Q3. They have held the position across 26 quarters.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Increased	434,448	+3.9%	$11.8M	0.1%	$26.74	29
2026-Q1	Increased	418,320	+1.4%	$3.8M	0.0%	$9.90	27
2025-Q4	Increased	412,380	+23.7%	$3.2M	0.0%	$7.96	32
2025-Q3	Decreased	333,351	-8.8%	$2.5M	0.0%	$7.59	0
2025-Q2	Increased	365,708	+31.8%	$2.8M	0.0%	$7.68	33
2025-Q1	Increased	277,471	+17.7%	$2M	0.0%	$6.16	30
2024-Q4	Decreased	235,678	-21.0%	$1.5M	0.0%	$6.12	0
2024-Q3	Decreased	298,196	-1.1%	$2.5M	0.0%	$8.21	0