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Equibles

JANE STREET GROUP, LLC

Position in UMC — United Microelectronics Corp

CIK 1595888 NEW YORK, NY
Back to UMC Full portfolio

Position in UMC

as of Mar 31, 2026 · filed May 12, 2026
Position Value
$23,080,565
+$19,471,623 QoQ
Shares Held
2,570,219
+459.8% QoQ
Ownership
0.102%
of shares outstanding
% of Portfolio
0.03%
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
$774,076
CallShares
86,200
PutValue
$0
PutShares
0

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

JANE STREET GROUP, LLC holds $4,565,803,699 across 55 Semiconductors names. UMC ranks #18 (0.5% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 AVGO
Broadcom Inc.
 4,676,806 $1,447,518,222
2 MRVL
Marvell Technology, Inc.
 9,953,890 $985,932,802
3 MU
Micron Technology Inc
 1,777,737 $600,590,667
4 TSM
Taiwan Semiconductor Manufacturing Co Ltd
 723,527 $244,515,949
5 NVDA
Nvidia Corp
 1,209,716 $210,974,469
6 TSEM
Tower Semiconductor Ltd
 1,190,538 $208,915,607
7 LSCC
Lattice Semiconductor Corp
 1,823,721 $169,168,358
8 GFS
GLOBALFOUNDRIES Inc.
 1,920,171 $85,409,205

All Filings in UMC

Export CSV
43 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $23,080,565 2,570,219
2026-03-31 $774,076 86,200
2025-12-31 $424,440 54,000
2025-12-31 $3,608,942 459,153
2025-12-31 $6,052,986 770,100
2025-09-30 $5,858,582 772,900
2025-09-30 $1,893,945 249,861
2025-06-30 $5,967,000 780,000
2025-03-31 $3,537,653 494,777
2025-03-31 $118,690 16,600
2025-03-31 $5,597,020 782,800
2024-12-31 $1,179,882 181,800
2024-12-31 $7,734,689 1,191,786
2024-09-30 $2,343,286 278,300
2024-09-30 $8,916,939 1,059,019
2024-06-30 $5,421,843 618,932
2024-03-31 $6,326,929 782,068
2023-12-31 $3,285,237 388,326
2023-09-30 $1,392,916 197,297
2023-06-30 $5,374,494 681,178
2023-03-31 $5,106,081 582,886
2022-12-31 $4,181,419 640,340
2022-09-30 $999,564 179,455
2022-06-30 $860,988 127,177
2022-03-31 $1,625,184 178,200
2022-03-31 $598,272 65,600
2022-03-31 $6,253,620 685,704
2021-12-31 $2,611,440 223,200
2021-12-31 $227,061 19,407
2021-12-31 $1,422,720 121,600
2021-09-30 $1,407,443 123,136
2021-09-30 $1,122,426 98,200
2021-09-30 $2,164,842 189,400
2021-06-30 $4,999,995 529,100
2021-06-30 $1,439,235 152,300
2021-06-30 $1,154,355 122,154
2021-03-31 $4,008,400 440,000
2021-03-31 $799,858 87,800
2021-03-31 $4,577,975 502,522
2020-12-31 $436,884 51,825
2020-09-30 $7,846,858 1,638,175
2020-06-30 $769,098 291,325
2020-03-31 $1,968,181 906,996

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