Insider ownership feed

Latest Insider Reports

Showing Forms 3/4/5 accepted since 07 May 2026. Each row keeps issuer, reporting owner, reported value, role, and SEC evidence together.

Recent insider signals

Insider filings to inspect

Use the card actions for issuer context, owner profile, and SEC evidence.

SEC 3

Ching Yu Liao at UNITED MICROELECTRONICS CORP

Owner CIK 0002133614

3 UMC
CIK
0002133614
Issuer
UNITED MICROELECTRONICS CORP
Security
UMC
Source
SEC Form 3
Action
Insider ownership report
Magnitude
$0
Filed
07 May 2026, 06:25:11 UTC
Period
29 Apr 2026

Open the filing, then compare the reporting owner with issuer-level insider activity and related ownership pages.

SEC 3

Jin-Shuang Chen at UNITED MICROELECTRONICS CORP

Owner CIK 0002133551

3 UMC
CIK
0002133551
Issuer
UNITED MICROELECTRONICS CORP
Security
UMC
Source
SEC Form 3
Action
Insider ownership report
Magnitude
$0
Filed
07 May 2026, 06:24:08 UTC
Period
29 Apr 2026

Open the filing, then compare the reporting owner with issuer-level insider activity and related ownership pages.

SEC 3

Lin-Wu Kuo at UNITED MICROELECTRONICS CORP

Owner CIK 0002133612

3 UMC
CIK
0002133612
Issuer
UNITED MICROELECTRONICS CORP
Security
UMC
Source
SEC Form 3
Action
Insider ownership report
Magnitude
$0
Filed
07 May 2026, 06:23:05 UTC
Period
29 Apr 2026

Open the filing, then compare the reporting owner with issuer-level insider activity and related ownership pages.

SEC 3

Ming-Yu Lin at UNITED MICROELECTRONICS CORP

Owner CIK 0002133704

3 UMC
CIK
0002133704
Issuer
UNITED MICROELECTRONICS CORP
Security
UMC
Source
SEC Form 3
Action
Insider ownership report
Magnitude
$0
Filed
07 May 2026, 06:21:50 UTC
Period
29 Apr 2026

Open the filing, then compare the reporting owner with issuer-level insider activity and related ownership pages.

SEC 3

Shu-Fen Hsu at UNITED MICROELECTRONICS CORP

Owner CIK 0002133605

3 UMC
CIK
0002133605
Issuer
UNITED MICROELECTRONICS CORP
Security
UMC
Source
SEC Form 3
Action
Insider ownership report
Magnitude
$0
Filed
07 May 2026, 06:20:46 UTC
Period
29 Apr 2026

Open the filing, then compare the reporting owner with issuer-level insider activity and related ownership pages.

SEC 3

Shih-Wei Liu at UNITED MICROELECTRONICS CORP

Owner CIK 0002133646

3 UMC
CIK
0002133646
Issuer
UNITED MICROELECTRONICS CORP
Security
UMC
Source
SEC Form 3
Action
Insider ownership report
Magnitude
$0
Filed
07 May 2026, 06:19:40 UTC
Period
29 Apr 2026

Open the filing, then compare the reporting owner with issuer-level insider activity and related ownership pages.

Rows shown
23,401-23,421 of 23,421
Per page
50
Current page
469

Form 4 insider conviction

Insider conviction radar

Role, issuer, transaction value, repeat activity, and SEC evidence.

Fresh reports

23,421

Forms 3, 4, and 5 filed in the current review window.

Visible buy/sell mix

0/0

Positive/negative net value among the preview cards.

Visible net value

$0

Directional preview only; verify transaction rows and footnotes.

Newest evidence

07 May 2026

Use recency to separate fresh activity from stale insider stories.

Signal checks

Open-market buys

positive net value and transaction code

Cluster and repeat activity

multiple insiders or repeated filings

Role context

director, officer, or 10% owner context

Issuer follow-up

issuer facts, 13D/G stakes, and 13F holders

SEC-verifiable Form 4 path

Open the filing, then follow the insider, issuer, or related ownership context.

Insider signal

Ching Yu Liao

UNITED MICROELECTRONICS CORP (UMC)

Form 3 General Counsel & VP Filing-backed
CIK
000119312526210203
Source
SEC Form 3
Action
Ownership change reported
Magnitude
$0
Filed
07 May 2026, 06:25:11 UTC
Period
29 Apr 2026

Ching Yu Liao filed Form 3 for UNITED MICROELECTRONICS CORP (UMC). Role/context: General Counsel & VP. Verify transaction rows, codes, and footnotes before treating this as a conviction signal.

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Insider signal

Jin-Shuang Chen

UNITED MICROELECTRONICS CORP (UMC)

Form 3 CHRO & VP Filing-backed
CIK
000119312526210200
Source
SEC Form 3
Action
Ownership change reported
Magnitude
$0
Filed
07 May 2026, 06:24:08 UTC
Period
29 Apr 2026

Jin-Shuang Chen filed Form 3 for UNITED MICROELECTRONICS CORP (UMC). Role/context: CHRO & VP. Verify transaction rows, codes, and footnotes before treating this as a conviction signal.

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Insider signal

Lin-Wu Kuo

UNITED MICROELECTRONICS CORP (UMC)

Form 3 Vice President Filing-backed
CIK
000119312526210195
Source
SEC Form 3
Action
Ownership change reported
Magnitude
$0
Filed
07 May 2026, 06:23:05 UTC
Period
29 Apr 2026

Lin-Wu Kuo filed Form 3 for UNITED MICROELECTRONICS CORP (UMC). Role/context: Vice President. Verify transaction rows, codes, and footnotes before treating this as a conviction signal.

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Insider signal

Ming-Yu Lin

UNITED MICROELECTRONICS CORP (UMC)

Form 3 Vice President Filing-backed
CIK
000119312526210189
Source
SEC Form 3
Action
Ownership change reported
Magnitude
$0
Filed
07 May 2026, 06:21:50 UTC
Period
29 Apr 2026

Ming-Yu Lin filed Form 3 for UNITED MICROELECTRONICS CORP (UMC). Role/context: Vice President. Verify transaction rows, codes, and footnotes before treating this as a conviction signal.

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Insider signal

Shu-Fen Hsu

UNITED MICROELECTRONICS CORP (UMC)

Form 3 Vice President Filing-backed
CIK
000119312526210184
Source
SEC Form 3
Action
Ownership change reported
Magnitude
$0
Filed
07 May 2026, 06:20:46 UTC
Period
29 Apr 2026

Shu-Fen Hsu filed Form 3 for UNITED MICROELECTRONICS CORP (UMC). Role/context: Vice President. Verify transaction rows, codes, and footnotes before treating this as a conviction signal.

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Insider signal

Shih-Wei Liu

UNITED MICROELECTRONICS CORP (UMC)

Form 3 Vice President Filing-backed
CIK
000119312526210181
Source
SEC Form 3
Action
Ownership change reported
Magnitude
$0
Filed
07 May 2026, 06:19:40 UTC
Period
29 Apr 2026

Shih-Wei Liu filed Form 3 for UNITED MICROELECTRONICS CORP (UMC). Role/context: Vice President. Verify transaction rows, codes, and footnotes before treating this as a conviction signal.

Create an account from this card and we will save this insider to your watchlist after sign-in or verification.

Latest insider ownership filings with issuer, reporting owner, reported value, role, internal report link, and SEC source.
Security Issuer Reporting owner / CIK Reported value Report date Actions
UMC UNITED MICROELECTRONICS CORP Ching Yu Liao CIK 0002133614 $0 29 Apr 2026
UMC UNITED MICROELECTRONICS CORP Jin-Shuang Chen CIK 0002133551 $0 29 Apr 2026
UMC UNITED MICROELECTRONICS CORP Lin-Wu Kuo CIK 0002133612 $0 29 Apr 2026
UMC UNITED MICROELECTRONICS CORP Ming-Yu Lin CIK 0002133704 $0 29 Apr 2026
UMC UNITED MICROELECTRONICS CORP Shu-Fen Hsu CIK 0002133605 $0 29 Apr 2026
UMC UNITED MICROELECTRONICS CORP Shih-Wei Liu CIK 0002133646 $0 29 Apr 2026
UMC UNITED MICROELECTRONICS CORP Ying-Sheng Shen CIK 0002133822 $0 29 Apr 2026
UMC UNITED MICROELECTRONICS CORP Che-Jen Hu CIK 0002133608 $0 29 Apr 2026
UMC UNITED MICROELECTRONICS CORP Shih-Chieh Hsu CIK 0002133603 $0 29 Apr 2026
UMC UNITED MICROELECTRONICS CORP Tzyy-Ming Cheng CIK 0002133595 $0 29 Apr 2026
UMC UNITED MICROELECTRONICS CORP Shih-Fang Tzou CIK 0002133596 $0 29 Apr 2026
RHEP REGIONAL HEALTH PROPERTIES, INC Marlie Davis CIK 0002133520 $0 05 May 2026
HDB HDFC BANK LTD Rakesh Kumar Rajput CIK 0002113168 $0 06 May 2026
UMC UNITED MICROELECTRONICS CORP Ming-Tsung Chen CIK 0002133571 $0 29 Apr 2026
RHEP REGIONAL HEALTH PROPERTIES, INC Marlie Davis CIK 0002133520 $0 01 May 2026
UMC UNITED MICROELECTRONICS CORP Yu-Chih Chuang CIK 0002133601 $0 29 Apr 2026
UMC UNITED MICROELECTRONICS CORP Jen-Tsung Lin CIK 0002133616 $0 29 Apr 2026
UMC UNITED MICROELECTRONICS CORP Oliver Chang CIK 0002133550 $0 29 Apr 2026
UMC UNITED MICROELECTRONICS CORP Kuei-Chun Hung CIK 0002133611 $0 29 Apr 2026
UMC UNITED MICROELECTRONICS CORP Chung-Hsien Wu CIK 0002133590 $0 29 Apr 2026
NAMI Jinxin Technology Holding Co Jun Jason Jiang CIK 0002126427 -$394 05 May 2026
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