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Equibles

CITADEL ADVISORS LLC

Position in UMC — United Microelectronics Corp

CIK 1423053 MIAMI, FL
Back to UMC Full portfolio

Position in UMC

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$6,872,591
-$1,964,485 QoQ
Shares Held
765,322
-31.9% QoQ
Ownership
0.030%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in UMC Over Time

Shares Held

Position Value (USD)

Derivatives in UMC

reported options exposure · as of Mar 31, 2026
CallValue
$1,155,726
CallShares
128,700
PutValue
$1,484,394
PutShares
165,300

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Semiconductors

Technology · as of Mar 31, 2026

CITADEL ADVISORS LLC holds $9,258,219,978 across 56 Semiconductors names. UMC ranks #33 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 NVDA
Nvidia Corp
 18,664,861 $3,255,151,758
2 MU
Micron Technology Inc
 4,596,372 $1,552,838,315
3 TSM
Taiwan Semiconductor Manufacturing Co Ltd
 4,035,762 $1,363,885,767
4 AVGO
Broadcom Inc.
 3,257,394 $1,008,196,016
5 INTC
Intel Corp
 6,323,746 $279,066,910
6 STM
STMicroelectronics N.V.
 6,909,118 $238,710,026
7 ADI
Analog Devices Inc
 730,395 $232,367,864
8 LSCC
Lattice Semiconductor Corp
 1,568,947 $145,535,523

All Filings in UMC

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $1,155,726 128,700
2026-03-31 $6,872,591 765,322
2026-03-31 $1,484,394 165,300
2025-12-31 $277,458 35,300
2025-12-31 $848,880 108,000
2025-12-31 $8,837,076 1,124,310
2025-09-30 $223,610 29,500
2025-09-30 $383,085 50,539
2025-09-30 $1,026,332 135,400
2025-06-30 $491,130 64,200
2025-06-30 $211,905 27,700
2025-06-30 $4,535,524 592,879
2025-03-31 $18,618,728 2,604,018
2025-03-31 $403,975 56,500
2025-03-31 $210,210 29,400
2024-12-31 $17,042,421 2,625,951
2024-12-31 $21,417 3,300
2024-12-31 $1,556,302 239,800
2024-09-30 $612,976 72,800
2024-09-30 $10,603,693 1,259,346
2024-09-30 $607,082 72,100
2024-06-30 $103,368 11,800
2024-06-30 $828,696 94,600
2024-06-30 $6,324,868 722,017
2024-03-31 $320,364 39,600
2024-03-31 $187,688 23,200
2023-12-31 $887,454 104,900
2023-12-31 $114,413 13,524
2023-12-31 $300,330 35,500
2023-09-30 $865,294 122,563
2023-09-30 $490,670 69,500
2023-09-30 $868,380 123,000
2023-06-30 $198,685 25,182
2023-06-30 $1,024,911 129,900
2023-06-30 $987,828 125,200
2023-03-31 $7,605,379 868,194
2023-03-31 $3,948,132 450,700
2023-03-31 $596,556 68,100
2022-12-31 $3,368,174 515,800
2022-12-31 $1,266,676 193,978
2022-12-31 $4,479,580 686,000
2022-09-30 $2,290,818 411,278
2022-09-30 $7,922,211 1,422,300
2022-09-30 $4,975,681 893,300
2022-06-30 $7,684,627 1,135,100
2022-06-30 $783,600 115,746
2022-06-30 $3,496,705 516,500
2022-03-31 $1,313,307 144,003
2022-03-31 $7,598,784 833,200
2022-03-31 $13,662,672 1,498,100

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