ALPHA & OMEGA SEMICONDUCTOR (AOSL) Institutional Shareholders
ALPHA & OMEGA SEMICONDUCTOR (AOSL) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $1.08B in AOSL holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of AOSL tracked by InsiderSet, reporting ownership valued at approximately $201.46M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $108.12M, representing an estimated loss of -46.33% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 64% of the total disclosed AOSL value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., State Street Corp, Manufacturers Life Insurance Company, The, and several other long-term asset managers with concentrated positions in ALPHA & OMEGA SEMICONDUCTOR (AOSL).
This page ranks the largest institutional AOSL shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
206
Total Reported Value
$1.08B
Largest Holder
Blackrock, Inc.
Largest Position
$201.46M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
75
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 4,256,528 | $201,461,470 | $108,115,811 | -$93,345,659 | -46.33% | |
| State Street Corp | 0.00% | 2,347,448 | $111,104,714 | $59,625,179 | -$51,479,535 | -46.33% | |
| Manufacturers Life Insurance Company, The | 0.05% | 1,375,083 | $65,082,678 | $34,927,108 | -$30,155,570 | -46.33% | |
| Dimensional Fund Advisors Lp | 0.01% | 1,335,089 | $63,184,828 | $33,911,261 | -$29,273,567 | -46.33% | |
| Vanguard Portfolio Management Llc | 0.00% | 1,111,480 | $52,606,348 | $28,231,592 | -$24,374,756 | -46.33% | |
| Vanguard Capital Management Llc | 0.00% | 1,070,895 | $50,685,460 | $27,200,733 | -$23,484,727 | -46.33% | |
| Two Sigma Investments, Lp | 0.03% | 951,576 | $45,038,092 | $24,170,030 | -$20,868,062 | -46.33% | |
| Fmr Llc | 0.00% | 791,715 | $37,471,887 | $20,109,561 | -$17,362,326 | -46.33% | |
| Geode Capital Management, Llc | 0.00% | 658,902 | $31,192,224 | $16,736,111 | -$14,456,113 | -46.35% | |
| Connor, Clark & Lunn Investment Management Ltd. | 0.06% | 636,893 | $30,144,146 | $16,177,082 | -$13,967,064 | -46.33% | |
| Weber Capital Management Llc | 21.69% | 538,437 | $25,484,223 | $13,676,300 | -$11,807,923 | -46.33% | |
| Wellington Management Group Llp | 0.00% | 412,910 | $19,543,030 | $10,487,914 | -$9,055,116 | -46.33% | |
| Charles Schwab Investment Management Inc | 0.00% | 403,197 | $19,083,314 | $10,241,204 | -$8,842,110 | -46.33% | |
| Acadian Asset Management Llc | 0.02% | 323,866 | $15,311,000 | $8,226,196 | -$7,084,804 | -46.27% | |
| Royce & Associates Lp | 0.12% | 309,015 | $14,625,680 | $7,848,981 | -$6,776,699 | -46.33% | |
| D. E. Shaw & Co., Inc. | 0.01% | 284,225 | $13,452,369 | $7,219,315 | -$6,233,054 | -46.33% | |
| Goldman Sachs Group Inc | 0.00% | 279,113 | $13,210,433 | $7,089,470 | -$6,120,963 | -46.33% | |
| Millennium Management Llc | 0.01% | 267,648 | $12,667,780 | $6,798,259 | -$5,869,521 | -46.33% | |
| Northern Trust Corp | 0.00% | 261,018 | $12,353,983 | $6,629,857 | -$5,724,126 | -46.33% | |
| Jane Street Group, Llc | 0.01% | 234,335 | $11,091,075 | $5,952,109 | -$5,138,966 | -46.33% | |
| Morgan Stanley | 0.00% | 217,176 | $10,278,964 | $5,516,270 | -$4,762,694 | -46.33% | |
| Invesco Ltd. | 0.00% | 207,842 | $9,837,163 | $5,279,187 | -$4,557,976 | -46.33% | |
| Apis Capital Advisors, Llc | 0.95% | 206,280 | $9,763,232 | $5,239,512 | -$4,523,720 | -46.33% | |
| Congress Asset Management Co | 0.06% | 203,460 | $9,629,762 | $5,167,884 | -$4,461,878 | -46.33% | |
| Panagora Asset Management Inc | 0.03% | 194,356 | $9,198,869 | $4,936,642 | -$4,262,227 | -46.33% | |
| Vanguard Fiduciary Trust Co | 0.00% | 163,428 | $7,735,047 | $4,151,071 | -$3,583,976 | -46.33% | |
| Jacobs Levy Equity Management, Inc | 0.03% | 160,918 | $7,616,249 | $4,087,317 | -$3,528,932 | -46.33% | |
| T. Rowe Price Investment Management, Inc. | 0.00% | 153,998 | $7,289,000 | $3,911,549 | -$3,377,451 | -46.34% | |
| Bridgeway Capital Management, Llc | 0.12% | 149,537 | $7,077,586 | $3,798,240 | -$3,279,346 | -46.33% | |
| Bank Of America Corp | 0.00% | 145,243 | $6,874,351 | $3,689,172 | -$3,185,179 | -46.33% | |
| Tudor Investment Corp Et Al | 0.03% | 144,312 | $6,830,287 | $3,665,525 | -$3,164,762 | -46.33% | |
| Bank Of New York Mellon Corp | 0.00% | 141,445 | $6,694,576 | $3,592,703 | -$3,101,873 | -46.33% | |
| Ubs Group Ag | 0.00% | 135,116 | $6,395,040 | $3,431,946 | -$2,963,094 | -46.33% | |
| Empowered Funds, Llc | 0.03% | 129,537 | $6,130,986 | $3,290,240 | -$2,840,746 | -46.33% | |
| Principal Financial Group Inc | 0.00% | 120,056 | $5,682,251 | $3,049,422 | -$2,632,829 | -46.33% | |
| Trexquant Investment Lp | 0.03% | 117,474 | $5,560,044 | $2,983,840 | -$2,576,204 | -46.33% | |
| Jpmorgan Chase & Co | 0.00% | 109,566 | $4,953,479 | $2,782,976 | -$2,170,503 | -43.82% | |
| Imc-Chicago, Llc | 0.04% | 99,791 | $4,723,108 | $2,534,691 | -$2,188,417 | -46.33% | |
| Susquehanna International Group, Llp | 0.00% | 96,522 | $4,568,386 | $2,451,659 | -$2,116,727 | -46.33% | |
| Wedge Capital Management L L P/Nc | 0.07% | 91,440 | $4,327,855 | $2,322,576 | -$2,005,279 | -46.33% | |
| Public Sector Pension Investment Board | 0.01% | 85,371 | $4,040,609 | $2,168,423 | -$1,872,186 | -46.33% | |
| Aqr Capital Management Llc | 0.00% | 83,433 | $3,948,884 | $2,119,198 | -$1,829,686 | -46.33% | |
| Bnp Paribas Financial Markets | 0.00% | 76,044 | $3,599,163 | $1,931,518 | -$1,667,645 | -46.33% | |
| Rhumbline Advisers | 0.00% | 61,676 | $2,919,107 | $1,566,570 | -$1,352,537 | -46.33% | |
| American Century Companies Inc | 0.00% | 61,255 | $2,899,199 | $1,555,877 | -$1,343,322 | -46.33% | |
| Citigroup Inc | 0.00% | 61,099 | $2,891,815 | $1,551,915 | -$1,339,900 | -46.33% | |
| Nuveen, Llc | 0.00% | 55,668 | $2,634,767 | $1,413,967 | -$1,220,800 | -46.33% | |
| Russell Investments Group, Ltd. | 0.00% | 55,849 | $2,598,647 | $1,418,565 | -$1,180,082 | -45.41% | |
| Algert Global Llc | 0.03% | 54,200 | $2,565,286 | $1,376,680 | -$1,188,606 | -46.33% | |
| Legal & General Group Plc | 0.00% | 54,126 | $2,561,783 | $1,374,800 | -$1,186,983 | -46.33% |
Frequently asked questions about AOSL
Who owns the most AOSL stock?
The largest holders of AOSL are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for ALPHA & OMEGA SEMICONDUCTOR (AOSL).
Is AOSL widely held by superinvestors?
Many widely followed stocks like AOSL appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly AOSL is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.