Ken Griffin United Microelectronics Corp Transaction History

Citadel Advisors LLC

$550 Billion
Q2 2025

A detailed history of Ken Griffin (Citadel Advisors LLC) transactions in United Microelectronics Corp stock. As of the latest transaction made, Citadel Advisors LLC holds 592,879 shares of UMC stock, worth $4.04 Million. This represents 0.0% of its overall portfolio holdings.

Number of Shares

592,879

Previous 29,400 1916.6%

Holding current value

$4.04 Million

Previous $210,000 2059.52%

% of portfolio

0.0%

Previous 0.0%

31 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q2 2025 Aug 14, 2025	SELL	$6.12 - $8.32 $12.3 Million - $16.7 Million	-2,011,139 Reduced 77.23%	592,879 $4.54 Million
Q1 2025 May 15, 2025	SELL	$5.69 - $7.15 $124,798 - $156,820	-21,933 Reduced 0.84%	2,604,018 $18.6 Million
Q4 2024 Feb 14, 2025	BUY	$6.34 - $8.35 $8.66 Million - $11.4 Million	1,366,605 Added 108.52%	2,625,951 $17 Million
Q3 2024 Nov 14, 2024	BUY	$7.43 - $8.89 $3.99 Million - $4.78 Million	537,329 Added 74.42%	1,259,346 $10.6 Million
Q2 2024 Aug 14, 2024	BUY	$7.4 - $8.91 $5.34 Million - $6.43 Million	722,017 New	722,017 $6.32 Million
Q4 2023 Feb 14, 2024	SELL	$6.88 - $8.66 $750,188 - $944,277	-109,039 Reduced 88.97%	13,524 $114,000
Q3 2023 Nov 14, 2023	BUY	$6.73 - $7.95 $655,374 - $774,178	97,381 Added 386.71%	122,563 $865,000
Q2 2023 Aug 14, 2023	SELL	$7.67 - $8.92 $6.47 Million - $7.52 Million	-843,012 Reduced 97.1%	25,182 $198,000
Q1 2023 May 15, 2023	BUY	$6.59 - $8.8 $4.44 Million - $5.93 Million	674,216 Added 347.57%	868,194 $7.61 Million
Q4 2022 Feb 14, 2023	SELL	$5.36 - $7.58 $1.16 Million - $1.65 Million	-217,300 Reduced 52.84%	193,978 $1.27 Million
Q3 2022 Nov 14, 2022	BUY	$5.57 - $7.3 $1.65 Million - $2.16 Million	295,532 Added 255.33%	411,278 $2.29 Million
Q2 2022 Aug 15, 2022	SELL	$6.77 - $9.08 $191,299 - $256,573	-28,257 Reduced 19.62%	115,746 $784,000
Q1 2022 May 16, 2022	SELL	$8.76 - $11.69 $38,649 - $51,576	-4,412 Reduced 2.97%	144,003 $1.31 Million
Q4 2021 Feb 14, 2022	SELL	$10.16 - $12.54 $5.74 Million - $7.09 Million	-565,048 Reduced 79.2%	148,415 $1.74 Million
Q3 2021 Nov 15, 2021	SELL	$9.16 - $12.5 $1.13 Million - $1.54 Million	-123,008 Reduced 14.71%	713,463 $8.16 Million
Q2 2021 Aug 16, 2021	SELL	$8.17 - $11.19 $2.98 Million - $4.08 Million	-364,495 Reduced 30.35%	836,471 $7.9 Million
Q1 2021 May 17, 2021	BUY	$8.01 - $10.78 $7.82 Million - $10.5 Million	975,998 Added 433.84%	1,200,966 $10.9 Million
Q4 2020 Feb 16, 2021	SELL	$4.81 - $9.04 $527,469 - $991,335	-109,661 Reduced 32.77%	224,968 $1.9 Million
Q3 2020 Nov 16, 2020	BUY	$2.68 - $4.96 $569,995 - $1.05 Million	212,685 Added 174.41%	334,629 $1.6 Million
Q2 2020 Aug 14, 2020	BUY	$2.13 - $2.87 $116,242 - $156,627	54,574 Added 81.01%	121,944 $322,000
Q1 2020 May 15, 2020	SELL	$2.16 - $2.81 $441,879 - $574,852	-204,574 Reduced 75.23%	67,370 $146,000
Q4 2019 Feb 14, 2020	BUY	$2.09 - $2.8 $60,825 - $81,488	29,103 Added 11.98%	271,944 $729,000
Q3 2019 Nov 14, 2019	BUY	$2.0 - $2.33 $134,248 - $156,398	67,124 Added 38.2%	242,841 $507,000
Q2 2019 Aug 14, 2019	BUY	$1.87 - $2.22 $11,377 - $13,506	6,084 Added 3.59%	175,717 $388,000
Q1 2019 May 15, 2019	SELL	$1.69 - $1.93 $11,813 - $13,490	-6,990 Reduced 3.96%	169,633 $0
Q4 2018 Feb 14, 2019	BUY	$1.64 - $2.58 $35,404 - $55,697	21,588 Added 13.92%	176,623 $316,000
Q3 2018 Nov 13, 2018	BUY	$2.45 - $2.96 $36,701 - $44,340	14,980 Added 10.7%	155,035 $0
Q2 2018 Aug 10, 2018	BUY	$2.53 - $3.08 $134,967 - $164,308	53,347 Added 61.52%	140,055 $0
Q1 2018 May 11, 2018	SELL	$2.33 - $2.73 $18,043 - $21,141	-7,744 Reduced 8.2%	86,708 $225,000
Q4 2017 Feb 09, 2018	SELL	$2.36 - $2.69 $389,012 - $443,408	-164,836 Reduced 63.57%	94,452 $226,000
Q3 2017 Nov 09, 2017	BUY	$2.21 - $2.71 $573,026 - $702,670	259,288	259,288 $648,000

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 $17B
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...

More about UMC

Track Ken Griffin's Portfolio

Portfolio Update

Get notified when there are updates to the investment portfolio of Citadel Advisors LLC, based on Form 13F filings with the SEC.

News

Stay updated on Citadel Advisors LLC and Ken Griffin with notifications on news.

Account