Security key
910873405
UNITED MICROELECTRONICS CORP - SPON ADR NEW (UMC)
CUSIP: 910873405
Q3 2025 13F Holders as of 30 Sep 2025
- Security type / class
- Equity / SPON ADR NEW
- Total 13F shares
- 132,277,745
- Total 13F value
- $1,002,548,491
- Share change
- -18,823,854
- Put/Call ratio
- 571%
- SEC-reported price per share
- $7.58
- Number of holders
- 237
- Value change
- -$143,097,417
- Number of buys
- 117
- Number of sells
- 128
Open additional details 1 more signal available
Report period
Q3 2025
Institutions
237
Top holders
10
UMC full security history
Ownership snapshot
Full 13F holder table
UNITED MICROELECTRONICS CORP SEC filings
UNITED MICROELECTRONICS CORP company facts
Broader feeds
Ownership snapshot
Top reported holders of UMC - UNITED MICROELECTRONICS CORP - SPON ADR NEW (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
0/15
Latest evidence
30 Jun 2025
13F
Highest disclosed value: $186,025,509
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
BlackRock, Inc. has the largest disclosed position value at $186.03M.
0 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock, Inc.'s linked filing trail.
Disclosed position value
Top 5
BlackRock, Inc.
$186.03M
MORGAN STANLEY
$166.88M
UBS Group AG
$129.2M
VANGUARD GROUP INC
$113.41M
Rafferty Asset Management, LLC
$64.28M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
Company
|
—
class O/S missing
|
$186,025,509
24,317,060 shares
|
— | 30 Jun 2025 |
| MORGAN STANLEY |
13F
Company
|
—
class O/S missing
|
$166,878,082
21,814,127 shares
|
— | 30 Jun 2025 |
| UBS Group AG |
13F
Company
|
—
class O/S missing
|
$129,199,480
16,888,821 shares
|
— | 30 Jun 2025 |
| VANGUARD GROUP INC |
13F
Company
|
—
class O/S missing
|
$113,414,853
14,825,471 shares
|
— | 30 Jun 2025 |
| Rafferty Asset Management, LLC |
13F
Company
|
—
class O/S missing
|
$64,283,440
8,403,064 shares
|
— | 30 Jun 2025 |
| BANK OF AMERICA CORP /DE/ |
13F
Company
|
—
class O/S missing
|
$53,890,057
7,044,452 shares
|
— | 30 Jun 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q3 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
237
Shares
132,277,745
Rows available
237
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q3 2025 vs Q2 2025 Across Filers
Q2 2025 holders
235
Q3 2025 holders
237
Holder diff
2
| Investor | Q2 2025 Shares | Q3 2025 Shares | Share Diff | Share Chg % | Q2 2025 value | Q3 2025 value | Value change | Value Chg % |
|---|