Alpha and Omega Semiconductor Limited
DE ˙ DB ˙ BMG6331P1041
42,83 € ↓ -0,46 (-1,06%)
2026-06-05
AKTIENPREIS
SecurityDE:AOY / Alpha and Omega Semiconductor Limited
InstitutionNorthern Trust Corp
Latest Disclosed Ownership246,790 shares
Latest Disclosed Value $ 5,468,866
Northern Trust Corp reports 4.63% increase in ownership of AOY / Alpha and Omega Semiconductor Limited

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 246,790 shares of Alpha and Omega Semiconductor Limited (DE:AOY) valued at $4,476,771 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 235,866 shares of Alpha and Omega Semiconductor Limited. This represents a change in shares of 4.63% during the quarter. The current value of the position is $10,570,016 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F ALPHA & OMEGA SEMICONDUCTOR SHS G6331P104 246,790 10,924 4.63 5,469 17.04 0.0001
2026-02-17 2025-12-31 13F ALPHA & OMEGA SEMICONDUCTOR SHS G6331P104 235,866 -16,013 -6.36 4,673 -33.66 0.0001
2025-11-14 2025-09-30 13F ALPHA & OMEGA SEMICONDUCTOR SHS G6331P104 251,879 1,815 0.73 7,043 9.76 0.0009
2025-08-13 2025-06-30 13F ALPHA & OMEGA SEMICONDUCTOR SHS G6331P104 250,064 -1,975 -0.78 6,417 2.41 0.0009
2025-05-13 2025-03-31 13F ALPHA & OMEGA SEMICONDUCTOR SHS G6331P104 252,039 -9,407 -3.60 6,266 -35.29 0.0009
2025-02-14 2024-12-31 13F ALPHA & OMEGA SEMICONDUCTOR SHS G6331P104 261,446 22,294 9.32 9,681 9.06 0.0014
2024-11-13 2024-09-30 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 239,152 5,058 2.16 8,877 1.47 0.0015
2024-08-14 2024-06-30 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 234,094 -6,418 -2.67 8,748 65.06 0.0015
2024-05-14 2024-03-31 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 240,512 -10,026 -4.00 5,301 -18.82 0.0009
2024-02-13 2023-12-31 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 250,538 1,687 0.68 6,529 -12.07 0.0012
2023-11-13 2023-09-30 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 248,851 2,573 1.04 7,426 -8.07 0.0014
2023-08-11 2023-06-30 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 246,278 -267 -0.11 8,078 21.57 0.0016
2023-05-15 2023-03-31 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 246,545 2,372 0.97 6,644 -4.76 0.0013
2023-02-13 2022-12-31 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 244,173 -5,276 -2.12 6,976 -9.08 0.0015
2022-11-14 2022-09-30 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 249,449 2,378 0.96 7,673 -6.86 0.0018
2022-08-12 2022-06-30 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 247,071 12,718 5.43 8,238 -35.68 0.0018
2022-05-13 2022-03-31 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 234,353 -6,114 -2.54 12,808 -12.06 0.0023
2022-02-08 2021-12-31 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 240,467 12,878 5.66 14,564 104.01 0.0024
2021-11-15 2021-09-30 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 227,589 -4,254 -1.83 7,139 1.33 0.0013
2021-08-13 2021-06-30 13F ALPHA & OMEGA SEMICONDUCTOR SHS G6331P104 231,843 14,252 6.55 7,045 -0.98 0.0012
2021-05-12 2021-03-31 13F ALPHA & OMEGA SEMICONDUCTOR SHS G6331P104 217,591 -23,642 -9.80 7,115 24.78 0.0013
2021-02-11 2020-12-31 13F ALPHA & OMEGA SEMICONDUCTOR SHS G6331P104 241,233 -11,681 -4.62 5,702 75.82 0.0011
2020-11-16 2020-09-30 13F ALPHA & OMEGA SEMICONDUCTOR SHS G6331P104 252,914 -3,173 -1.24 3,243 16.40 0.0007
2020-08-14 2020-06-30 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 256,087 -35,946 -12.31 2,786 48.75 0.0007
2020-05-14 2020-03-31 13F ALPHA & OMEGA SEMICONDUCTOR SHS G6331P104 292,033 15,456 5.59 1,873 -50.27 0.0005
2020-02-14 2019-12-31 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 276,577 -9,766 -3.41 3,766 7.11 0.0008
2019-11-13 2019-09-30 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 286,343 26,700 10.28 3,516 44.99 0.0008
2019-08-13 2019-06-30 13F ALPHA & OMEGA SEMICONDUCTOR SHS G6331P104 259,643 8,387 3.34 2,425 -16.18 0.0006
2019-05-13 2019-03-31 13F ALPHA & OMEGA SEMICONDUCTOR SHS G6331P104 251,256 -3,819 -1.50 2,893 11.27 0.0007
2019-02-12 2018-12-31 13F ALPHA & OMEGA SEMICONDUCTOR SHS G6331P104 255,075 -641 -0.25 2,600 -12.58 0.0007
2018-11-14 2018-09-30 13F ALPHA & OMEGA SEMICONDUCTOR SHS G6331P104 255,716 1,639 0.65 2,974 -17.78 0.0007
2018-09-18 2018-06-30 13F/A-1 ALPHA & OMEGA SEMICONDUCTOR SHS G6331P104 254,077 9,620 3.94 3,617 -4.24 0.0009
2018-08-14 2018-06-30 13F ALPHA & OMEGA SEMICONDUCTOR SHS G6331P104 255,652 11,195 3,640
2018-05-09 2018-03-31 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 244,457 -1,904 -0.77 3,777 -6.28 0.0010
2018-02-14 2017-12-31 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 246,361 6,622 2.76 4,030 1.95 0.0010
2017-11-13 2017-09-30 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 239,739 -1,862 -0.77 3,953 -1.86 0.0010
2017-08-11 2017-06-30 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 241,601 14,093 6.19 4,028 2.99 0.0011
2017-05-12 2017-03-31 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 227,508 4,232 1.90 3,911 -17.65 0.0011
2017-02-13 2016-12-31 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 223,276 11,484 5.42 4,749 3.24 0.0015
2016-11-09 2016-09-30 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 211,792 9,213 4.55 4,600 63.00 0.0014
2016-08-12 2016-06-30 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 202,579 20,331 11.16 2,822 30.65 0.0009
2016-08-19 2016-03-31 13F/A-1 ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 182,248 -2,056 -1.12 2,160 27.51 0.0007
2016-05-13 2016-03-31 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 182,248 2,160
2016-02-12 2015-12-31 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 184,304 2,357 1.30 1,694 19.55 0.0006
2015-11-12 2015-09-30 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 181,947 181,947 0.00 1,417 0.0005
2015-08-13 2015-06-30 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 0 -224,412 -100.00 0 -100.00
2015-05-14 2015-03-31 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 224,412 7,588 3.50 2,000 4.22 0.0006
2015-02-12 2014-12-31 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 216,824 -9,350 -4.13 1,919 -9.74 0.0006
2014-11-13 2014-09-30 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 226,174 29,686 15.11 2,126 16.68 0.0007
2014-08-14 2014-06-30 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 196,488 -13,995 -6.65 1,822 17.62 0.0006
2014-05-14 2014-03-31 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 210,483 -17,772 -7.79 1,549 -11.99 0.0005
2014-02-21 2013-12-31 13F/A-1 ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 228,255 4,368 1.95 1,760 -6.53 0.0006
2014-02-12 2013-12-31 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 228,255 1,760
2013-11-13 2013-09-30 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 223,887 23,100 11.50 1,883 22.75 0.0007
2013-08-09 2013-06-30 13F ALPHA & OMEGA SEMICONDUCTOR COM G6331P104 200,787 200,787 1,534 0.0006
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.