ALPHA & OMEGA SEMICONDUCTOR Ltd - Common Stock (AOSL) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2014 to Q4 2025

Type / Class
Equity / Common Stock
Symbol
AOSL on Nasdaq
Shares outstanding
29,410,803
Price per share
$21.35
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
22,419,447
Total reported value
$444,240,333
% of total 13F portfolios
0%
Share change
-267,137
Value change
-$20,746,906
Number of holders
167
Price from insider filings
$21.35
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of ALPHA & OMEGA SEMICONDUCTOR Ltd - Common Stock (AOSL) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Chang Mike F 14% $78,838,210 4,127,655 Mike F. Chang 31 Dec 2024
BlackRock, Inc. 13% $71,341,785 3,735,172 BlackRock, Inc. 31 Mar 2025
DIMENSIONAL FUND ADVISORS LP 6.3% $35,175,840 1,841,667 Dimensional Fund Advisors LP 31 Mar 2025

As of 31 Dec 2025, 167 institutional investors reported holding 22,419,447 shares of ALPHA & OMEGA SEMICONDUCTOR Ltd - Common Stock (AOSL). This represents 76% of the company’s total 29,410,803 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of ALPHA & OMEGA SEMICONDUCTOR Ltd - Common Stock (AOSL) together control 63% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 13% 3,908,891 +1.7% 0% $77,435,131
VANGUARD GROUP INC 8.2% 2,424,320 -1.2% 0% $48,025,779
MANUFACTURERS LIFE INSURANCE COMPANY, THE 5.5% 1,628,634 +4.7% 0.03% $32,263,240
DIMENSIONAL FUND ADVISORS LP 5.4% 1,584,028 -6.1% 0.01% $31,379,693
STATE STREET CORP 5% 1,474,175 +22% 0% $29,203,407
WELLINGTON MANAGEMENT GROUP LLP 3.5% 1,025,953 +19% 0% $20,324,129
Boston Partners 2.3% 689,143 -12% 0.01% $13,654,506
GEODE CAPITAL MANAGEMENT, LLC 2.1% 611,089 +0.59% 0% $12,107,977
WEBER CAPITAL MANAGEMENT LLC /ADV 1.9% 547,308 0% 10% $10,842,171
FMR LLC 1.8% 515,095 +0.01% 0% $10,204,023
ROYCE & ASSOCIATES LP 1.6% 474,015 +11% 0.1% $9,390,237
GOLDMAN SACHS GROUP INC 1.5% 447,020 +21% 0% $8,855,466
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 1.3% 393,773 +14% 0% $7,800,643
Invesco Ltd. 1.3% 381,767 +20% 0% $7,562,805
TWO SIGMA INVESTMENTS, LP 0.95% 278,117 +71% 0.01% $5,509,498
JPMORGAN CHASE & CO 0.81% 237,563 +50% 0% $4,706,124
NORTHERN TRUST CORP 0.8% 235,866 -6.4% 0% $4,672,506
MORGAN STANLEY 0.78% 228,233 -13% 0% $4,521,316
BANK OF AMERICA CORP /DE/ 0.75% 221,299 +23% 0% $4,383,933
UBS Group AG 0.74% 217,121 +225% 0% $4,301,166
GAGNON SECURITIES LLC 0.73% 215,642 +0.14% 0.87% $4,271,868
Russell Investments Group, Ltd. 0.7% 205,775 +8.2% 0% $4,076,404
Connor, Clark & Lunn Investment Management Ltd. 0.7% 204,511 +82% 0.01% $4,051,363
TWO SIGMA ADVISERS, LP 0.64% 189,000 +99% 0.01% $3,744,090
PEREGRINE CAPITAL MANAGEMENT LLC 0.6% 177,422 -20% 0.11% $3,514,730

Institutional Holders of ALPHA & OMEGA SEMICONDUCTOR Ltd - Common Stock (AOSL) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 22,419,447 $444,240,333 -$20,746,906 $19.81 167
2025 Q3 22,139,159 $618,972,934 +$12,322,504 $27.96 183
2025 Q2 21,713,945 $557,181,406 -$21,502,941 $25.66 162
2025 Q1 22,643,486 $562,839,969 +$19,669,271 $24.86 154
2024 Q4 20,527,876 $760,129,440 +$35,310,006 $37.03 175
2024 Q3 19,547,024 $725,692,788 +$457,886 $37.12 170
2024 Q2 19,484,925 $728,150,135 +$25,089,031 $37.37 167
2024 Q1 19,132,588 $421,680,236 +$22,060,570 $22.04 139
2023 Q4 18,128,150 $472,537,779 +$16,052,328 $26.06 142
2023 Q3 17,457,863 $520,908,409 +$2,752,038 $29.84 139
2023 Q2 17,411,579 $570,926,195 -$3,947,987 $32.80 144
2023 Q1 17,512,856 $471,906,972 -$7,678,298 $26.95 142
2022 Q4 17,779,705 $508,010,087 -$19,400,324 $28.57 160
2022 Q3 18,449,500 $567,553,851 +$8,894,879 $30.76 163
2022 Q2 18,088,046 $603,143,415 +$62,506,955 $33.34 175
2022 Q1 15,658,066 $855,735,351 +$30,606,390 $54.65 199
2021 Q4 14,999,468 $905,418,613 +$7,097,497 $60.56 175
2021 Q3 14,915,454 $467,434,662 -$8,201,150 $31.37 128
2021 Q2 15,181,862 $461,385,113 -$11,593,861 $30.39 124
2021 Q1 15,501,369 $506,892,464 +$7,830,300 $32.70 125
2020 Q4 15,279,384 $361,212,567 +$7,128,506 $23.64 98
2020 Q3 15,007,889 $192,563,771 -$5,796,971 $12.82 79
2020 Q2 15,462,010 $168,210,106 +$2,964,497 $10.88 72
2020 Q1 15,445,273 $99,002,189 -$976,657 $6.41 77
2019 Q4 15,355,996 $209,076,110 +$9,897,576 $13.62 83
2019 Q3 14,636,592 $179,729,053 -$8,011,260 $12.28 83
2019 Q2 15,317,061 $142,976,725 -$1,506,079 $9.34 71
2019 Q1 15,469,011 $178,052,576 -$2,071,746 $11.51 80
2018 Q4 15,668,288 $159,680,122 -$840,099 $10.19 84
2018 Q3 15,707,218 $182,675,072 +$1,318,810 $11.63 85
2018 Q2 15,584,946 $221,929,057 -$11,001,275 $14.24 85
2018 Q1 16,320,159 $252,147,407 -$887,657 $15.45 94
2017 Q4 16,865,476 $275,974,053 -$2,379,961 $16.36 94
2017 Q3 16,946,080 $279,521,941 +$2,484,118 $16.49 97
2017 Q2 16,792,761 $279,983,508 +$573,217 $16.67 98
2017 Q1 16,754,983 $288,009,029 +$39,032,381 $17.19 98
2016 Q4 16,052,586 $341,559,360 +$13,380,025 $21.27 100
2016 Q3 15,380,298 $334,058,213 +$35,701,940 $21.72 98
2016 Q2 13,999,029 $194,997,483 +$5,505,048 $13.93 89
2016 Q1 13,736,671 $162,680,031 +$10,410,775 $11.85 87
2015 Q4 13,460,818 $123,715,579 +$2,627,609 $9.19 65
2015 Q3 13,025,211 $101,449,168 -$20,487,874 $7.79 61
2015 Q2 15,556,376 $135,959,146 -$2,405,820 $8.74 69
2015 Q1 15,813,843 $140,917,488 -$3,043,783 $8.91 73
2014 Q4 16,157,310 $143,046,192 +$3,810,555 $8.85 81
2014 Q3 15,624,412 $146,863,875 +$10,271,097 $9.40 74
2014 Q2 14,532,702 $134,714,817 +$10,518,611 $9.27 69
2014 Q1 13,440,939 $98,914,521 +$1,065,288 $7.36 63