Alpha & Omega Semiconductor (AOSL)
Alpha & Omega Semiconductor on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, financials, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as semiconductors & related devices.
3.2M
Short interest
settlement 2026-10-15
6.5
Days to cover
+1.6 days vs prior
64.2%
Short share of volume
2026-11-02
1,251
Fails to deliver
settlement 2026-10-13
Wed 4 Nov
Next earnings
estimated date
$0
Insider flow, 90 days
0 buys, 0 sells
As of 2026-11-02.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 15 October 2026, short interest in AOSL is 3,174,338 shares, up 251,470 shares over the last month. Over the last 48 readings it ranged from 864,251 shares (31 October 2024) to 3,311,917 shares (31 July 2026). The latest reading sits at the top of that range. At the reported average volume of 486K shares a day that is 6.5 days to cover.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-10-15 | 3,174,338 | +7.7% | 486,499 | 6.52 |
| 2026-09-30 | 2,947,504 | +0.8% | 594,759 | 4.96 |
| 2026-09-15 | 2,922,868 | +11.5% | 501,351 | 5.83 |
| 2026-08-31 | 2,620,812 | -14.3% | 594,861 | 4.41 |
| 2026-08-14 | 3,056,614 | -7.7% | 601,489 | 5.08 |
| 2026-07-31 | 3,311,917 | +29.4% | 623,566 | 5.31 |
| 2026-07-15 | 2,558,823 | +4.9% | 647,765 | 3.95 |
| 2026-06-30 | 2,439,864 | +16.2% | 925,227 | 2.64 |
| 2026-06-15 | 2,099,731 | +0.5% | 929,939 | 2.26 |
| 2026-05-29 | 2,090,309 | +20.2% | 998,428 | 2.09 |
| 2026-05-15 | 1,739,608 | -7.7% | 1,303,560 | 1.33 |
| 2026-04-30 | 1,884,822 | +31.2% | 1,334,174 | 1.41 |
| 2026-04-15 | 1,436,553 | -0.3% | 421,935 | 3.40 |
| 2026-03-31 | 1,441,424 | -7.2% | 263,910 | 5.46 |
| 2026-03-13 | 1,552,341 | +4.7% | 330,084 | 4.70 |
| 2026-02-27 | 1,482,307 | +1.4% | 224,080 | 6.62 |
| 2026-02-13 | 1,462,474 | +5.8% | 569,992 | 2.57 |
| 2026-01-30 | 1,382,303 | -20.5% | 322,847 | 4.28 |
| 2026-01-15 | 1,737,894 | -3.8% | 266,135 | 6.53 |
| 2025-12-31 | 1,806,477 | +16.9% | 352,437 | 5.13 |
| 2025-12-15 | 1,544,790 | -2.3% | 281,848 | 5.48 |
| 2025-11-28 | 1,581,284 | +24.5% | 470,866 | 3.36 |
| 2025-11-14 | 1,269,851 | +3.9% | 491,703 | 2.58 |
| 2025-10-31 | 1,221,751 | -8.4% | 219,134 | 5.58 |
| 2025-10-15 | 1,334,222 | -1.4% | 283,068 | 4.71 |
| 2025-09-30 | 1,352,926 | -3.9% | 247,748 | 5.46 |
| 2025-09-15 | 1,407,498 | +3.9% | 218,736 | 6.43 |
| 2025-08-29 | 1,355,083 | -0.1% | 197,163 | 6.87 |
| 2025-08-15 | 1,356,461 | +2.0% | 260,651 | 5.20 |
| 2025-07-31 | 1,330,289 | -0.3% | 199,982 | 6.65 |
| 2025-07-15 | 1,334,486 | -11.3% | 213,630 | 6.25 |
| 2025-06-30 | 1,504,368 | -9.7% | 309,577 | 4.86 |
| 2025-06-13 | 1,666,762 | -3.3% | 389,414 | 4.28 |
| 2025-05-30 | 1,723,867 | -5.6% | 358,838 | 4.80 |
| 2025-05-15 | 1,825,515 | -3.1% | 373,535 | 4.89 |
| 2025-04-30 | 1,884,961 | -15.0% | 679,188 | 2.78 |
| 2025-04-15 | 2,217,297 | +16.8% | 648,080 | 3.42 |
| 2025-03-31 | 1,899,110 | -3.0% | 380,464 | 4.99 |
| 2025-03-14 | 1,957,130 | +9.7% | 620,807 | 3.15 |
| 2025-02-28 | 1,783,609 | -7.2% | 551,229 | 3.24 |
| 2025-02-14 | 1,922,245 | +1.0% | 964,760 | 1.99 |
| 2025-01-31 | 1,903,028 | +7.8% | 649,894 | 2.93 |
| 2025-01-15 | 1,764,833 | +8.2% | 442,970 | 3.98 |
| 2024-12-31 | 1,631,307 | -15.7% | 858,890 | 1.90 |
| 2024-12-13 | 1,933,916 | +19.8% | 1,046,556 | 1.85 |
| 2024-11-29 | 1,613,976 | +50.6% | 1,025,757 | 1.57 |
| 2024-11-15 | 1,071,660 | +24.0% | 518,051 | 2.07 |
| 2024-10-31 | 864,251 | -4.5% | 141,100 | 6.13 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 2 November 2026, the short share of AOSL volume is 64.2%, up 0.3 points over the last five sessions. Over the last 30 readings it ranged from 37.2% (22 September 2026) to 82.1% (29 October 2026). The latest reading is in line with the 30-session average of 64.5%, on 242K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-11-02 | 156K | 242K | 64.2% | 108 |
| 2026-10-30 | 95K | 156K | 60.6% | 170 |
| 2026-10-29 | 105K | 127K | 82.1% | 0 |
| 2026-10-28 | 91K | 121K | 75.8% | 241 |
| 2026-10-27 | 140K | 198K | 70.4% | 27 |
| 2026-10-26 | 72K | 112K | 63.9% | 40 |
| 2026-10-23 | 90K | 138K | 65.6% | 419 |
| 2026-10-22 | 115K | 197K | 58.6% | 171 |
| 2026-10-21 | 99K | 160K | 62.0% | 0 |
| 2026-10-20 | 143K | 213K | 67.3% | 89 |
| 2026-10-19 | 185K | 255K | 72.8% | 2 |
| 2026-10-16 | 113K | 157K | 71.8% | 0 |
| 2026-10-15 | 144K | 251K | 57.3% | 101 |
| 2026-10-14 | 190K | 247K | 76.9% | 132 |
| 2026-10-13 | 100K | 142K | 70.6% | 100 |
| 2026-10-12 | 65K | 109K | 59.6% | 697 |
| 2026-10-09 | 86K | 127K | 67.9% | 10 |
| 2026-10-08 | 115K | 193K | 59.3% | 8,063 |
| 2026-10-07 | 67K | 127K | 53.1% | 422 |
| 2026-10-06 | 102K | 165K | 61.9% | 404 |
| 2026-10-05 | 88K | 128K | 69.0% | 401 |
| 2026-10-02 | 148K | 212K | 70.0% | 0 |
| 2026-10-01 | 94K | 171K | 54.8% | 7 |
| 2026-09-30 | 113K | 168K | 67.5% | 0 |
| 2026-09-29 | 95K | 129K | 73.7% | 7 |
| 2026-09-28 | 62K | 116K | 53.4% | 0 |
| 2026-09-25 | 50K | 85K | 58.8% | 95 |
| 2026-09-24 | 104K | 168K | 61.9% | 14 |
| 2026-09-23 | 84K | 126K | 66.6% | 253 |
| 2026-09-22 | 131K | 352K | 37.2% | 113 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 13 October 2026, the fails-to-deliver balance in AOSL is 1,251 shares, up 1,241 shares over the last settlement date. Over the last 30 readings it ranged from 2 shares (11 August 2026) to 13,366 shares (12 June 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-10-13 | 1,251 | $26.58 | $33K |
| 2026-10-07 | 10 | $29.94 | $299 |
| 2026-10-06 | 50 | $29.00 | $1K |
| 2026-10-05 | 621 | $30.24 | $19K |
| 2026-09-16 | 545 | $24.76 | $13K |
| 2026-08-28 | 163 | $26.23 | $4K |
| 2026-08-26 | 49 | $26.62 | $1K |
| 2026-08-18 | 538 | $31.07 | $17K |
| 2026-08-14 | 1,253 | $30.62 | $38K |
| 2026-08-13 | 290 | $36.28 | $11K |
| 2026-08-11 | 2 | $34.56 | $69 |
| 2026-08-03 | 618 | $31.74 | $20K |
| 2026-07-29 | 411 | $28.85 | $12K |
| 2026-07-28 | 327 | $30.82 | $10K |
| 2026-07-24 | 283 | $33.81 | $10K |
| 2026-07-21 | 7,814 | $31.41 | $245K |
| 2026-07-17 | 744 | $30.71 | $23K |
| 2026-07-07 | 666 | $38.24 | $25K |
| 2026-07-02 | 1,014 | $43.52 | $44K |
| 2026-07-01 | 85 | $47.33 | $4K |
| 2026-06-26 | 1,593 | $45.70 | $73K |
| 2026-06-25 | 889 | $41.98 | $37K |
| 2026-06-24 | 667 | $45.07 | $30K |
| 2026-06-15 | 2,096 | $45.21 | $95K |
| 2026-06-12 | 13,366 | $43.33 | $579K |
| 2026-06-10 | 556 | $41.03 | $23K |
| 2026-06-04 | 6 | $52.72 | $316 |
| 2026-06-01 | 277 | $45.35 | $13K |
| 2026-05-26 | 80 | $41.72 | $3K |
| 2026-05-18 | 2,269 | $38.87 | $88K |
Insider trades
SEC Form 4, newest first. JSONNo open-market insider trades were reported for AOSL in the last 90 days. The most recent filings are listed below. Latest filing: Chang Stephen Chunping (Chief Executive Officer) on 2026-08-24.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-08-24 | Chang Stephen Chunping | Chief Executive Officer | Gift | 101K | $0.00 | $0 | 101K |
| 2026-08-24 | Chang Mike F | Director, 10% owner | Gift | 101K | $0.00 | $0 | 3.7M |
| 2026-08-13 | Chang Mike F | Director, 10% owner | Gift | 3.0M | $0.00 | $0 | 561K |
| 2026-07-20 | Chien Joshua C. | Director | Grant | 1K | $0.00 | $0 | 1K |
| 2026-07-16 | Xue Bing | EVP-WW Sales & Bus Development | Sell | 875 | $33.99 | $30K | 123K |
| 2026-07-13 | Chang Mike F | Director, 10% owner | Gift | 24K | $0.00 | $0 | 3.6M |
| 2026-06-16 | Xue Bing | EVP-WW Sales & Bus Development | Sell | 5K | $47.09 | $231K | 124K |
| 2026-06-01 | Chang Mike F | Director, 10% owner | Gift | 30K | $0.00 | $0 | 3.6M |
| 2026-05-26 | Chang Mike F | Director, 10% owner | Gift | 40K | $0.00 | $0 | 3.6M |
| 2026-05-22 | Chen Claudia | Director | Sell | 217 | $40.54 | $9K | 28K |
| 2026-05-22 | Chen Claudia | Director | Sell | 4K | $39.47 | $152K | 28K |
| 2026-05-22 | Chang Mike F | Director, 10% owner | Gift | 736K | $0.00 | $0 | 3.7M |
| 2026-05-21 | Chang Stephen Chunping | Chief Executive Officer | Gift | 2K | $0.00 | $0 | 634K |
| 2026-05-18 | Xue Bing | EVP-WW Sales & Bus Development | Sell | 5K | $41.00 | $202K | 128K |
| 2026-04-28 | Liang Yifan | CFO and Corp Secretary | Gift | 300 | $0.00 | $0 | 269K |
| 2026-04-27 | Liang Yifan | CFO and Corp Secretary | Gift | 300 | $0.00 | $0 | 270K |
| 2026-04-17 | Liang Yifan | CFO and Corp Secretary | Sell | 9K | $35.00 | $302K | 270K |
| 2026-04-17 | Chang Stephen Chunping | Chief Executive Officer | Sell | 10K | $34.90 | $346K | 636K |
| 2026-04-17 | Chang Stephen Chunping | Chief Executive Officer | Sell | 3K | $33.90 | $118K | 646K |
| 2026-04-17 | Chang Stephen Chunping | Chief Executive Officer | Sell | 1K | $32.90 | $49K | 649K |
| 2026-04-16 | Xue Bing | EVP-WW Sales & Bus Development | Sell | 2K | $31.21 | $57K | 133K |
| 2026-04-14 | Liang Yifan | CFO and Corp Secretary | Sell | 11K | $32.00 | $358K | 279K |
| 2026-04-14 | Liang Yifan | CFO and Corp Secretary | Sell | 8K | $30.00 | $238K | 290K |
| 2026-04-14 | Liang Yifan | CFO and Corp Secretary | Sell | 7K | $29.00 | $214K | 298K |
| 2026-04-14 | Chang Stephen Chunping | Chief Executive Officer | Sell | 6K | $31.90 | $178K | 651K |
| 2026-03-16 | Li Wenjun | Chief Operating Officer | Grant | 10K | $0.00 | $0 | 87K |
| 2026-03-16 | Chang Stephen Chunping | Chief Executive Officer | Grant | 68K | $0.00 | $0 | 656K |
| 2026-03-16 | Liang Yifan | CFO and Corp Secretary | Grant | 23K | $0.00 | $0 | 305K |
| 2026-03-16 | Chang Mike F | Director, 10% owner | Grant | 23K | $0.00 | $0 | 4.4M |
| 2026-03-16 | Xue Bing | EVP-WW Sales & Bus Development | Grant | 15K | $0.00 | $0 | 134K |
| 2026-03-16 | Chang Mike F | Director,TenPercentOwner | Tax withholding | 14K | $21.43 | $309K | 4.4M |
| 2026-03-16 | Chang Mike F | Director,TenPercentOwner | Grant | 23K | $0.00 | $0 | 4.4M |
| 2026-03-16 | Li Wenjun | Chief Operating Officer | Tax withholding | 3K | $21.43 | $71K | 69K |
| 2026-03-16 | Li Wenjun | Chief Operating Officer | Grant | 10K | $0.00 | $0 | 87K |
| 2026-03-16 | Li Wenjun | Chief Operating Officer | Tax withholding | 2K | $21.43 | $49K | 67K |
| 2026-03-16 | Li Wenjun | Chief Operating Officer | Tax withholding | 2K | $21.43 | $49K | 77K |
| 2026-03-16 | Li Wenjun | Chief Operating Officer | Tax withholding | 3K | $21.43 | $70K | 79K |
| 2026-03-16 | Li Wenjun | Chief Operating Officer | Grant | 10K | $0.00 | $0 | 82K |
| 2026-03-16 | Chang Stephen Chunping | Chief Executive Officer | Tax withholding | 18K | $21.43 | $382K | 589K |
| 2026-03-16 | Chang Stephen Chunping | Chief Executive Officer | Tax withholding | 26K | $21.43 | $550K | 607K |
| 2026-03-16 | Chang Stephen Chunping | Chief Executive Officer | Grant | 68K | $0.00 | $0 | 632K |
| 2026-03-16 | Liang Yifan | CFO and Corp Secretary | Tax withholding | 5K | $21.43 | $99K | 283K |
| 2026-03-16 | Liang Yifan | CFO and Corp Secretary | Tax withholding | 7K | $21.43 | $148K | 287K |
| 2026-03-16 | Liang Yifan | CFO and Corp Secretary | Grant | 23K | $0.00 | $0 | 294K |
| 2026-03-16 | Chang Mike F | Director, 10% owner | Tax withholding | 10K | $21.43 | $211K | 4.4M |
| 2026-03-16 | Chang Mike F | Director, 10% owner | Tax withholding | 18K | $21.43 | $385K | 4.4M |
| 2026-03-16 | Chang Mike F | Director, 10% owner | Grant | 23K | $0.00 | $0 | 4.4M |
| 2026-03-16 | Xue Bing | EVP-WW Sales & Bus Development | Tax withholding | 4K | $21.43 | $77K | 119K |
| 2026-03-16 | Xue Bing | EVP-WW Sales & Bus Development | Tax withholding | 6K | $21.43 | $120K | 123K |
| 2026-03-16 | Xue Bing | EVP-WW Sales & Bus Development | Grant | 15K | $0.00 | $0 | 129K |
| 2026-03-16 | Xue Bing | EVP-WW Sales & Bus Development | Sell | 2K | $21.92 | $53K | 114K |
| 2026-03-09 | Chang Mike F | Director, 10% owner | Buy | 34K | $19.00 | $641K | 4.4M |
| 2026-02-17 | Xue Bing | EVP-WW Sales & Bus Development | Sell | 2K | $22.33 | $55K | 116K |
| 2026-01-15 | Xue Bing | EVP-WW Sales & Bus Development | Sell | 737 | $22.43 | $17K | 118K |
| 2026-01-02 | Li Wenjun | Chief Operating Officer | Tax withholding | 3K | $20.66 | $65K | 72K |
| 2026-01-02 | Xue Bing | EVP-WW Sales & Bus Development | Tax withholding | 9K | $20.66 | $178K | 119K |
| 2026-01-02 | Liang Yifan | CFO and Corp Secretary | Tax withholding | 9K | $20.66 | $178K | 272K |
| 2026-01-02 | Chang Stephen Chunping | Chief Executive Officer | Tax withholding | 12K | $20.66 | $248K | 565K |
| 2026-01-02 | Chang Mike F | Director, 10% owner | Tax withholding | 17K | $20.66 | $345K | 4.3M |
| 2025-12-15 | Liang Yifan | CFO and Corp Secretary | Gift | 500 | $0.00 | $0 | 280K |
| 2025-12-15 | Xue Bing | EVP-WW Sales & Bus Development | Sell | 2K | $20.56 | $38K | 128K |
| 2025-11-14 | Xue Bing | EVP-WW Sales & Bus Development | Sell | 2K | $18.16 | $34K | 130K |
| 2025-11-11 | Li Hanqing | Director | Grant | 6K | $0.00 | $0 | 24K |
| 2025-11-11 | Jeong So-Yeon | Director | Grant | 6K | $0.00 | $0 | 24K |
| 2025-11-11 | Pfeiffer Michael L | Director | Grant | 6K | $0.00 | $0 | 71K |
| 2025-11-11 | Chang Lucas S. | Director | Grant | 6K | $0.00 | $0 | 31K |
| 2025-11-11 | SALAMEH MICHAEL J | Director | Grant | 6K | $0.00 | $0 | 65K |
| 2025-11-11 | Chen Claudia | Director | Grant | 6K | $0.00 | $0 | 32K |
| 2025-11-11 | OWYANG KING | Director | Grant | 6K | $0.00 | $0 | 75K |
| 2025-10-20 | Chang Mike F | Director, 10% owner | Gift | 40K | $0.00 | $0 | 4.4M |
| 2025-10-17 | Liang Yifan | CFO and Corp Secretary | Gift | 300 | $0.00 | $0 | 281K |
| 2025-09-09 | Chang Stephen Chunping | Chief Executive Officer | Gift | 2K | $0.00 | $0 | 577K |
| 2025-08-15 | Xue Bing | EVP-WW Sales & Bus Development | Tax withholding | 508 | $26.50 | $13K | 131K |
| 2025-05-12 | Xue Bing | EVP-WW Sales & Bus Development | Sell | 2K | $23.73 | $44K | 131K |
| 2025-03-17 | Li Wenjun | Chief Operating Officer | Grant | 10K | $0.00 | $0 | 74K |
| 2025-03-17 | Xue Bing | EVP-WW Sales & Bus Development | Grant | 15K | $0.00 | $0 | 133K |
| 2025-03-17 | Chang Mike F | Chairman of Board | Tax withholding | 27K | $27.61 | $754K | 4.4M |
| 2025-03-17 | Chang Mike F | Chairman of Board | Grant | 23K | $0.00 | $0 | 4.4M |
| 2025-03-17 | Chang Mike F | Chairman of Board | Tax withholding | 21K | $27.61 | $567K | 4.4M |
| 2025-03-17 | Chang Mike F | Chairman of Board | Grant | 38K | $0.00 | $0 | 4.4M |
| 2025-03-17 | Chang Stephen Chunping | Chief Executive Officer | Tax withholding | 20K | $27.61 | $552K | 532K |
| 2025-03-17 | Chang Stephen Chunping | Chief Executive Officer | Tax withholding | 11K | $27.61 | $304K | 521K |
| 2025-03-17 | Chang Stephen Chunping | Chief Executive Officer | Grant | 58K | $0.00 | $0 | 579K |
| 2025-03-17 | Chang Stephen Chunping | Chief Executive Officer | Grant | 68K | $0.00 | $0 | 552K |
| 2025-03-17 | Liang Yifan | CFO and Corp Secretary | Grant | 18K | $0.00 | $0 | 280K |
| 2025-03-17 | Liang Yifan | CFO and Corp Secretary | Grant | 23K | $0.00 | $0 | 277K |
| 2025-03-17 | Liang Yifan | CFO and Corp Secretary | Tax withholding | 10K | $27.61 | $263K | 268K |
| 2025-03-17 | Liang Yifan | CFO and Corp Secretary | Tax withholding | 5K | $27.61 | $144K | 262K |
| 2025-03-17 | Xue Bing | EVP-WW Sales & Bus Development | Grant | 15K | $0.00 | $0 | 130K |
| 2025-03-17 | Xue Bing | EVP-WW Sales & Bus Development | Tax withholding | 8K | $27.61 | $228K | 122K |
| 2025-03-17 | Xue Bing | EVP-WW Sales & Bus Development | Tax withholding | 4K | $27.61 | $119K | 118K |
| 2025-03-17 | Li Wenjun | Chief Operating Officer | Tax withholding | 2K | $27.61 | $52K | 64K |
| 2025-03-17 | Li Wenjun | Chief Operating Officer | Grant | 10K | $0.00 | $0 | 69K |
| 2025-03-17 | Li Wenjun | Chief Operating Officer | Tax withholding | 3K | $27.61 | $82K | 66K |
| 2025-01-13 | Xue Bing | EVP-WW Sales & Bus Development | Sell | 1K | $35.00 | $43K | 115K |
| 2025-01-02 | Liang Yifan | CFO and Corp Secretary | Tax withholding | 10K | $36.54 | $383K | 255K |
| 2025-01-02 | Li Wenjun | Chief Operating Officer | Tax withholding | 3K | $36.54 | $91K | 59K |
| 2025-01-02 | Chang Mike F | Executive Chairman | Tax withholding | 22K | $36.54 | $820K | 4.4M |
| 2025-01-02 | Xue Bing | EVP-WW Sales & Bus Development | Tax withholding | 10K | $36.54 | $383K | 117K |
| 2025-01-02 | Chang Stephen Chunping | Chief Executive Officer | Tax withholding | 11K | $36.54 | $410K | 485K |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.
Planned sales (Form 144)
Newest first. JSON14 Form 144 notices on file for AOSL worth $2.7M at the prices reported; 0 in the last 90 days worth $0. Latest: BING XUE filed on 2026-07-16 to sell 875 shares ($30K) from 2026-07-16.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-07-16 | BING XUEOfficer | 875 | $30K | 0.003% | 2026-07-16 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-06-16 | BING XUEOfficer | 5K | $231K | 0.016% | 2026-06-16 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-22 | CLAUDIA CHENDirector | 4K | $161K | 0.014% | 2026-05-22 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-18 | BING XUEOfficer | 5K | $202K | 0.016% | 2026-05-18 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-04-17 | YIFAN LIANGOfficer | 9K | $302K | 0.029% | 2026-04-17 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-04-17 | STEPHEN CHANGOfficer, Director | 15K | $513K | 0.050% | 2026-04-17 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-04-16 | BING XUEOfficer | 2K | $57K | 0.006% | 2026-04-16 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-04-14 | STEPHEN CHANGOfficer, Director | 6K | $178K | 0.019% | 2026-04-14 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-04-14 | YIFAN LIANGOfficer | 27K | $810K | 0.089% | 2026-04-14 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-03-16 | BING XUEOfficer | 2K | $53K | 0.008% | 2026-03-16 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-02-17 | BING XUEOfficer | 2K | $55K | 0.008% | 2026-02-17 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-01-15 | BING XUEOfficer | 737 | $17K | 0.002% | 2026-01-15 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-12-15 | BING XUEOfficer | 2K | $38K | 0.006% | 2025-12-15 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-11-14 | BING XUEOfficer | 2K | $34K | 0.006% | 2025-11-14 | Morgan Stanley Smith Barney LLC Executive Financial Services |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON2 holders report 5% or more of AOSL in their latest filing, all on Schedule 13G (passive). The largest reported stake is STATE STREET CORPORATION at 7.8% of the class (2,347,448 shares), filed 2026-08-07 for an event on 2026-06-30.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-08-07 | 13G | STATE STREET CORPORATIONparent holding company | 2.3M | 7.8% | 2026-06-30 |
| 2026-08-07 | 13G | SSGA FUNDS MANAGEMENT, INC.investment adviser | 1.8M | 5.9% | 2026-06-30 |
| 2026-07-14 | 13G/Ano. 10 | Dimensional Fund Advisors LPinvestment adviser | 1.3M | 4.5% | 2026-06-30 |
| 2026-03-26 | 13G/Ano. 3 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
13F holders
Tracked managers holding AOSL at their latest 13F. JSON5 of the 30 tracked managers held AOSL at their latest 13F, $77.0M in total at quarter-end prices. Two Sigma Investments is the largest at $45.0M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 4 added shares and 1 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Two Sigma Investments | 2026-06-30 | 952K | $45.0M | 0.03% | +399K |
| D. E. Shaw & Co. | 2026-06-30 | 284K | $13.5M | 0.01% | +5K |
| Millennium Management | 2026-06-30 | 268K | $12.7M | 0.00% | +70K |
| AQR Capital Management | 2026-06-30 | 83K | $3.9M | 0.00% | -58K |
| Citadel Advisors | 2026-06-30 | 39K | $1.9M | 0.00% | +3K |
Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.
Financials
SEC XBRL, as filed. JSONIn Q4 FY 2026 (quarter ended 2026-06-30) Alpha & Omega Semiconductor reported revenue of $170.4M, down 3.5% from the same quarter a year earlier, and net loss of $13.1M. In FY 2026 it generated -$16.3M of operating cash flow and spent $18.2M on buybacks. As of 2026-06-30, cash was $180.8M against $537K of debt.
- Cash
- $180.8M
- Debt
- $537K
- Equity
- $797.9M
- Total assets
- $963.6M
- Shares outstanding
- 30,259,255
Quarterly, last 8 quarters
| Quarter | Period end | Revenue | Net income | Margin | Diluted EPS |
|---|---|---|---|---|---|
| Q4 FY 2026derived | 2026-06-30 | $170.4M | -$13.1M | -7.7% | n/a |
| Q3 FY 2026 | 2026-03-31 | $163.8M | -$13.8M | -8.4% | -0.46 |
| Q2 FY 2026 | 2025-12-31 | $162.3M | -$13.3M | -8.2% | -0.45 |
| Q1 FY 2026 | 2025-09-30 | $182.5M | -$2.1M | -1.2% | -0.07 |
| Q4 FY 2025derived | 2025-06-30 | $176.5M | -$77.1M | -43.7% | n/a |
| Q3 FY 2025 | 2025-03-31 | $164.6M | -$10.8M | -6.6% | -0.37 |
| Q2 FY 2025 | 2024-12-31 | $173.2M | -$6.6M | -3.8% | -0.23 |
| Q1 FY 2025 | 2024-09-30 | $181.9M | -$2.5M | -1.4% | -0.09 |
Fiscal years, with buybacks and dividends
| Fiscal year | Ends | Revenue | Net income | Operating cash flow | Capex | Buybacks | Dividends |
|---|---|---|---|---|---|---|---|
| FY 2026 | 2026-06-30 | $678.9M | -$42.3M | -$16.3M | $51.8M | $18.2M | n/a |
| FY 2025 | 2025-06-30 | $696.2M | -$97.0M | $29.7M | $37.2M | $0 | n/a |
| FY 2024 | 2024-06-30 | $657.3M | -$11.1M | $25.7M | $37.1M | $0 | n/a |
| FY 2023 | 2023-06-30 | $691.3M | $12.4M | $20.5M | $110.4M | $13.4M | n/a |
| FY 2022 | 2022-06-30 | $777.6M | $453.2M | $218.9M | $138.0M | $0 | n/a |
Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2026-06-30; shares outstanding as of 2026-07-31 from the cover page.
What this page is
Alpha & Omega Semiconductor in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows Alpha & Omega Semiconductor (AOSL), SEC CIK 1387467, listed on Nasdaq, classified by the SEC as semiconductors & related devices. The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-10-15.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-11-02.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-10-13.JSON and CSV
- Planned sales
- SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-07-16.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-08-07.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Financials
- SEC EDGAR 10-K and 10-Q filingsSource: SEC.Weekly; values are as filed in the 10-Q and 10-K. Latest 2026-06-30.JSON and CSV
- Earnings dates
- SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-08-12.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-08-24.JSON and CSV
- Company record
- EDGAR filing index for CIK 1387467Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
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Datasets
Frequently Asked Questions
How much of AOSL is sold short?
3,174,338 shares were held short at the 2026-10-15 settlement, 6.5 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is AOSL's daily short volume?
On 2026-11-02, 155,566 of the 242,195 AOSL shares reported to FINRA were sold short, 64.2% of the day's reported volume. Short volume is a flow for one day, not a position.
Does AOSL have fails to deliver?
The SEC's latest file shows 1,251 AOSL shares failed to deliver at settlement 2026-10-13. Fails are reported per settlement date and published twice a month with a lag.
Are AOSL insiders buying or selling?
No open-market insider trades were reported for AOSL in the last 90 days. The most recent filings are listed below. Latest filing: Chang Stephen Chunping (Chief Executive Officer) on 2026-08-24.
Have AOSL insiders filed to sell?
14 Form 144 notices on file for AOSL worth $2.7M at the prices reported; 0 in the last 90 days worth $0. Latest: BING XUE filed on 2026-07-16 to sell 875 shares ($30K) from 2026-07-16.
Who owns 5% or more of AOSL?
2 holders report 5% or more of AOSL in their latest filing, all on Schedule 13G (passive). The largest reported stake is STATE STREET CORPORATION at 7.8% of the class (2,347,448 shares), filed 2026-08-07 for an event on 2026-06-30.
What did AOSL report last quarter?
In Q4 FY 2026 (quarter ended 2026-06-30) Alpha & Omega Semiconductor reported revenue of $170.4M, down 3.5% from the same quarter a year earlier, and net loss of $13.1M. In FY 2026 it generated -$16.3M of operating cash flow and spent $18.2M on buybacks. As of 2026-06-30, cash was $180.8M against $537K of debt.
Which tracked 13F managers own AOSL?
5 of the 30 tracked 13F managers held AOSL shares at their latest filing, $77.0M in all. The largest: Two Sigma Investments (952K shares, $45.0M), D. E. Shaw & Co. (284K shares, $13.5M), Izzy Englander's Millennium Management (268K shares, $12.7M), Cliff Asness's AQR Capital Management (83K shares, $3.9M), Ken Griffin's Citadel Advisors (39K shares, $1.9M).
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.