2303
UNITED MICROELECTRONICS CORP
Schedule 13G/13D reports beneficial ownership at an observation date. “Accumulation” or “reduction” is inferred
from changes in reported shares when available; it is not a list of individual trades or exact execution prices.
Form 13F rows are quarter-end holding context only and do not establish an exact entry date.
Free access includes current parsed ownership filings, reported share changes, and ownership-percentage changes.
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Beneficial ownership filing history
Showing 2 of 2 parsed filing(s)| Holder | Observed / filed | Reported change | Shares | Ownership | Observation | Filing | Latest |
|---|---|---|---|---|---|---|---|
| BlackRock CIK0002012383 | Mar 31, 2026 observed Apr 29, 2026 filed · 29d Schedule 13G amendment | Earliest Schedule 13G amendment found | 817.5M | 12.00% | |||
| BlackRock Legacy CIK0001364742 | Dec 31, 2023 observed Feb 5, 2024 filed · 36d Schedule 13G amendment | Earliest Schedule 13G amendment found | 687.6M | 5.50% |