Mariner, LLC United Microelectronics Corp Transaction History

Mariner, LLC

$67.3 Billion
Q2 2025

A detailed history of Mariner, LLC transactions in United Microelectronics Corp stock. As of the latest transaction made, Mariner, LLC holds 186,692 shares of UMC stock, worth $1.41 Million. This represents 0.0% of its overall portfolio holdings.

Number of Shares

186,692

Previous 101,538 83.86%

Holding current value

$1.41 Million

Previous $725,000 96.97%

% of portfolio

0.0%

Previous 0.0%

14 transactions

Quarter	Operation	Price Per share	shares change	shares Held	SEC Form
Quarter	Operation	Price Per share	shares change	shares Held	SEC Form
Q2 2025 Aug 14, 2025	BUY	$6.12 - $8.32 $521,142 - $708,481	85,154 Added 83.86%	186,692 $1.43 Million
Q1 2025 May 15, 2025	BUY	$5.69 - $7.15 $84,724 - $106,463	14,890 Added 17.18%	101,538 $725,000
Q4 2024 Feb 13, 2025	SELL	$6.34 - $8.35 $235,233 - $309,810	-37,103 Reduced 29.98%	86,648 $562,000
Q3 2024 Nov 13, 2024	BUY	$7.43 - $8.89 $77,569 - $92,811	10,440 Added 9.21%	123,751 $1.04 Million
Q2 2024 Aug 13, 2024	SELL	$7.4 - $8.91 $101,409 - $122,102	-13,704 Reduced 10.79%	113,311 $992,000
Q1 2024 May 15, 2024	BUY	$7.54 - $8.48 $54,235 - $60,996	7,193 Added 6.0%	127,015 $1.03 Million
Q4 2023 Feb 14, 2024	BUY	$6.88 - $8.66 $67,768 - $85,301	9,850 Added 8.96%	119,822 $1.01 Million
Q3 2023 Nov 13, 2023	BUY	$6.73 - $7.95 $61,808 - $73,012	9,184 Added 9.11%	109,972 $776,000
Q2 2023 Aug 11, 2023	BUY	$7.67 - $8.92 $143,674 - $167,089	18,732 Added 22.83%	100,788 $795,000
Q1 2023 May 12, 2023	SELL	$6.59 - $8.8 $42,070 - $56,179	-6,384 Reduced 7.22%	82,056 $718,000
Q4 2022 Feb 14, 2023	SELL	$5.36 - $7.58 $61,259 - $86,631	-11,429 Reduced 11.44%	88,440 $577,000
Q3 2022 Nov 10, 2022	BUY	$5.57 - $7.3 $556,270 - $729,043	99,869 New	99,869 $556,000
Q2 2022 Aug 15, 2022	SELL	$6.77 - $9.08 $182,695 - $245,032	-26,986 Closed	0 $0
Q1 2022 May 13, 2022	BUY	$8.76 - $11.69 $236,397 - $315,466	26,986 New	26,986 $246,000

Others Institutions Holding UMC

# of Institutions

274

Shares Held

149M

Call Options Held

98.6K

Put Options Held

1.1M

View Full List

About UNITED MICROELECTRONICS CORP

Ticker UMC
Exchange NYSE
Sector Technology
Industry Semiconductors
Shares Outstandng 2,496,399,872
Market Cap $18.9B
Description
United Microelectronics Corporation operates as a semiconductor wafer foundry in Taiwan, Singapore, China, Hong Kong, Japan, the United States, Europe, and internationally. The company provides circuit design, mask tooling, wafer fabrication, and assembly and testing services. It serves fabless design companies and integrated device manufacturer...

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