Position in MU
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$858,525,119
+$826,428,968 QoQ
Shares Held
743,769
+682.9% QoQ
Ownership
0.066%
of shares outstanding
% of Portfolio
14.08%
of 13F equity value
Holder Rank
#120
of 3,877 holders
Holding Since
Sep 2024
6 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in MU Over Time
Shares Held
Position Value (USD)
Derivatives in MU
reported options exposure · as of Jun 30, 2026CallValue
$0
CallShares
0
PutValue
$121,200,450
PutShares
105,000
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 Jun 30, 2026Weiss Asset Management LP holds $2,163,321,719 across 16 Semiconductors names. MU ranks #2 (39.7% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | NVDA |
Nvidia Corp
|
5,263,485 | $1,053,170,713 | |
| 2 | MU |
Micron Technology Inc
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|
743,769 | $858,525,119 | |
| 3 | MRVL |
Marvell Technology, Inc.
|
286,219 | $85,261,777 | |
| 4 | MCHP |
Microchip Technology Inc
|
600,000 | $46,026,000 | |
| 5 | CBRS |
Cerebras Systems Inc.
|
96,780 | $21,388,380 | |
| 6 | SMTC |
Semtech Corp
|
125,430 | $20,300,845 | |
| 7 | CRDO |
Credo Technology Group Holding Ltd
|
55,920 | $15,207,444 | |
| 8 | LSCC |
Lattice Semiconductor Corp
|
96,040 | $14,690,278 |
All Filings in MU
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7 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $121,200,450 | 105,000 | Put | Defined | 2026-08-14 | |
| 2026-06-30 | $858,525,119 | 743,769 | Shares | Defined | 2026-08-14 | |
| 2026-03-31 | $32,096,151 | 95,004 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $8,163,011 | 28,601 | Shares | Defined | 2026-02-17 | |
| 2025-09-30 | $20,778,968 | 124,187 | Shares | Defined | 2025-11-14 | |
| 2025-03-31 | $1,694,007 | 19,496 | Shares | Defined | 2025-05-15 | |
| 2024-09-30 | $2,931,674 | 28,268 | Shares | Defined | 2024-11-14 | |
| No filing history on record for this holder in this stock. | ||||||