Quick Takeaways
- AOSL - ALPHA & OMEGA SEMICONDUCTOR Ltd has 13 insiders with reported activity on this page.
- Net insider value flow over the last year: -$1,459,639.
- Recent transaction rows are available for direct filing-level review.
Insider Transactions Reported by 13 Insiders of ALPHA & OMEGA SEMICONDUCTOR Ltd
- Symbol
- AOSL on Nasdaq
- Location
- Sunnyvale, CA
What Changed
- Buy value: $640,813; sell value: $2,100,451.
- Net share flow: -34,865.
Why This Matters
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Source Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsNet insider flow leans to selling over the last 12 months. Net value: -$1,459,639.
Buys
$640,813
Shares: 33,727
Insiders: 1
Sells
$2,100,452
Shares: 68,592
Insiders: 3
Net
-$1,459,639
Shares: -34,865
Insiders: -2
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 33,727 | 62,320 | $640,813 | $1,968,701 | -$1,327,888 |
| 3-6 | 0 | 4,427 | $0 | $87,969 | -$87,969 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 1,845 | $0 | $43,782 | -$43,782 |
ALPHA & OMEGA SEMICONDUCTOR Ltd executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Mike F. Chang | Director, 10%+ Owner | $86,972,358 | +$640,813 | +0.74% | Mixed | 16 Mar 2026 |
| Stephen Chunping Chang | Chief Executive Officer, Director | $22,192,944 | -$691,435 | -3% | Filing P/S | 17 Apr 2026 |
| Yifan Liang | CFO and Corp Secretary | $5,969,970 | -$1,112,374 | -16% | Median | 27 Apr 2026 |
| Yueh-Se Ho | Director | $5,292,805 | Mixed | 11 Nov 2021 | ||
| Bing Xue | EVP-WW Sales & Bus Development | $4,138,976 | -$296,643 | -6.7% | Filing P/S | 16 Apr 2026 |
| King Owyang | Director | $2,104,157 | Mixed | 11 Nov 2025 | ||
| Michael L. Pfeiffer | Director | $1,993,380 | Mixed | 11 Nov 2025 | ||
| Michael J. Salameh | Director | $1,812,479 | Mixed | 11 Nov 2025 | ||
| Wenjun Li | Chief Operating Officer | $1,714,713 | Mixed | 16 Mar 2026 | ||
| Claudia Chen | Director | $901,793 | Mixed | 11 Nov 2025 | ||
| Lucas S. Chang | Director | $863,544 | Mixed | 11 Nov 2025 | ||
| So-Yeon Jeong | Director | $665,448 | Mixed | 11 Nov 2025 | ||
| Hanqing Li | Director | $665,448 | Mixed | 11 Nov 2025 |
Top shareholders of ALPHA & OMEGA SEMICONDUCTOR Ltd (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| Mike F. Chang |
3/4/5
13D/G
|
Director, 10%+ Owner |
14%
from 13D/G
|
4,390,326
|
$86,972,358 | +$640,813 | 16 Mar 2026 | |
| BlackRock, Inc. |
13F
13D/G
|
Company |
13%
from 13D/G
|
3,908,891
|
$77,435,131 | — | 31 Dec 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
8.2%
|
2,424,320
|
$48,025,779 | — | 31 Dec 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13D/G
13F
|
Company |
5.3%
|
1,563,871
|
$34,655,381 | -$6,155,959 | 31 Mar 2026 | |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE |
13F
|
Company |
5.5%
|
1,628,634
|
$32,263,240 | — | 31 Dec 2025 | |
| STATE STREET CORP |
13F
|
Company |
5%
|
1,474,175
|
$29,203,407 | — | 31 Dec 2025 | |
| Stephen Chunping Chang |
3/4/5
|
Chief Executive Officer, Director |
2.2%
|
635,901
|
$22,192,944 | -$691,435 | 17 Apr 2026 | |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
|
Company |
3.5%
|
1,025,953
|
$20,324,129 | — | 31 Dec 2025 | |
| Boston Partners |
13F
|
Company |
2.3%
|
689,143
|
$13,654,506 | — | 31 Dec 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.1%
|
611,089
|
$12,107,977 | — | 31 Dec 2025 | |
| WEBER CAPITAL MANAGEMENT LLC /ADV |
13F
|
Company |
1.9%
|
547,308
|
$10,842,171 | — | 31 Dec 2025 | |
| FMR LLC |
13F
|
Company |
1.7%
|
515,095
|
$10,204,023 | — | 31 Dec 2025 | |
| ROYCE & ASSOCIATES LP |
13F
|
Company |
1.6%
|
474,015
|
$9,390,237 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
1.5%
|
447,020
|
$8,855,466 | — | 31 Dec 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
1.3%
|
393,773
|
$7,800,643 | — | 31 Dec 2025 | |
| Invesco Ltd. |
13F
|
Company |
1.3%
|
381,767
|
$7,562,805 | — | 31 Dec 2025 | |
| Yifan Liang |
3/4/5
|
CFO and Corp Secretary |
0.91%
|
269,403
|
$5,969,970 | -$1,112,374 | 27 Apr 2026 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
0.94%
|
278,117
|
$5,509,498 | — | 31 Dec 2025 | |
| Yueh-Se Ho |
3/4/5
|
Director |
—
class O/S missing
|
193,592
|
$5,292,805 | — | 11 Nov 2021 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0.81%
|
237,563
|
$4,706,124 | — | 31 Dec 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.8%
|
235,866
|
$4,672,506 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
0.77%
|
228,233
|
$4,521,316 | — | 31 Dec 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.75%
|
221,299
|
$4,383,933 | — | 31 Dec 2025 | |
| UBS Group AG |
13F
|
Company |
0.74%
|
217,121
|
$4,301,166 | — | 31 Dec 2025 | |
| GAGNON SECURITIES LLC |
13F
|
Company |
0.73%
|
215,642
|
$4,271,868 | — | 31 Dec 2025 | |
| Bing Xue |
3/4/5
|
EVP-WW Sales & Bus Development |
0.45%
|
132,617
|
$4,138,976 | -$296,643 | 16 Apr 2026 | |
| Russell Investments Group, Ltd. |
13F
|
Company |
0.7%
|
205,775
|
$4,076,404 | — | 31 Dec 2025 | |
| Connor, Clark & Lunn Investment Management Ltd. |
13F
|
Company |
0.69%
|
204,511
|
$4,051,363 | — | 31 Dec 2025 | |
| TWO SIGMA ADVISERS, LP |
13F
|
Company |
0.64%
|
189,000
|
$3,744,090 | — | 31 Dec 2025 | |
| PEREGRINE CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.6%
|
177,422
|
$3,514,730 | — | 31 Dec 2025 | |
| D. E. Shaw & Co., Inc. |
13F
|
Company |
0.54%
|
160,588
|
$3,181,248 | — | 31 Dec 2025 | |
| Uniplan Investment Counsel, Inc. |
13F
|
Company |
0.54%
|
159,947
|
$3,168,555 | — | 31 Dec 2025 | |
| Trexquant Investment LP |
13F
|
Company |
0.51%
|
151,630
|
$3,003,790 | — | 31 Dec 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.49%
|
145,308
|
$2,878,547 | — | 31 Dec 2025 | |
| WINTON GROUP Ltd |
13F
|
Company |
0.47%
|
137,265
|
$2,719,220 | — | 31 Dec 2025 | |
| ACADIAN ASSET MANAGEMENT LLC |
13F
|
Company |
0.45%
|
133,503
|
$2,640,000 | — | 31 Dec 2025 | |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC |
13F
|
Company |
0.44%
|
129,541
|
$2,566,207 | — | 31 Dec 2025 | |
| JACOBS LEVY EQUITY MANAGEMENT, INC |
13F
|
Company |
0.42%
|
124,751
|
$2,471,317 | — | 31 Dec 2025 | |
| Gagnon Advisors, LLC |
13F
|
Company |
0.41%
|
120,196
|
$2,381,083 | — | 31 Dec 2025 | |
| Numerai GP LLC |
13F
|
Company |
0.41%
|
120,155
|
$2,380,271 | — | 31 Dec 2025 | |
| PRINCIPAL FINANCIAL GROUP INC |
13F
|
Company |
0.4%
|
118,897
|
$2,355,350 | — | 31 Dec 2025 | |
| Empowered Funds, LLC |
13F
|
Company |
0.37%
|
109,541
|
$2,170,007 | — | 31 Dec 2025 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.37%
|
108,818
|
$2,155,685 | — | 31 Dec 2025 | |
| JANE STREET GROUP, LLC |
13F
|
Company |
0.37%
|
108,202
|
$2,143,481 | — | 31 Dec 2025 | |
| King Owyang |
3/4/5
|
Director |
0.26%
|
75,256
|
$2,104,157 | — | 11 Nov 2025 | |
| Michael L. Pfeiffer |
3/4/5
|
Director |
0.24%
|
71,294
|
$1,993,380 | — | 11 Nov 2025 | |
| Michael J. Salameh |
3/4/5
|
Director |
0.22%
|
64,824
|
$1,812,479 | — | 11 Nov 2025 | |
| Wenjun Li |
3/4/5
|
Chief Operating Officer |
0.29%
|
86,558
|
$1,714,713 | — | 16 Mar 2026 | |
| PUBLIC SECTOR PENSION INVESTMENT BOARD |
13F
|
Company |
0.29%
|
86,383
|
$1,711,247 | — | 31 Dec 2025 | |
| SEI INVESTMENTS CO |
13F
|
Company |
0.28%
|
83,618
|
$1,656,478 | — | 31 Dec 2025 |
Recent Insider Transactions by Companies or Individuals for ALPHA & OMEGA SEMICONDUCTOR Ltd
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Yifan Liang | AOSL | Common Shares | Gift | -0.11% | -300 | 269,403 | 28 Apr 2026 | Direct | ||
| Yifan Liang | AOSL | Common Shares | Gift | -0.11% | -300 | 269,703 | 27 Apr 2026 | Direct | ||
| Yifan Liang | AOSL | Common Shares | Sale | -3.1% | $301,878 | $35.00 | -8,625 | 270,003 | 17 Apr 2026 | Direct |
| Stephen Chunping Chang | AOSL | Common Share | Sale | -2.29% | $512,987 | $34.47 | -14,884 | 635,901 | 17 Apr 2026 | Direct |
| Bing Xue | AOSL | Common Share | Sale | -1.36% | $57,177 | $31.21 | -1,832 | 132,617 | 16 Apr 2026 | Direct |
| Yifan Liang | AOSL | Common Shares | Sale | -8.69% | $810,495 | $30.57 | -26,517 | 278,628 | 14 Apr 2026 | Direct |
| Stephen Chunping Chang | AOSL | Common Share | Sale | -0.85% | $178,449 | $31.90 | -5,594 | 650,785 | 14 Apr 2026 | Direct |
| Wenjun Li | AOSL | Common Share | Award | 13.1% | 10,000 | 86,558 | 16 Mar 2026 | Direct | ||
| Wenjun Li | AOSL | Common Share | Tax liability | -7.77% | -5,607 | 66,558 | 16 Mar 2026 | Direct | ||
| Mike F. Chang | AOSL | Common Shares | Award | 0.52% | 22,500 | 4,390,326 | 16 Mar 2026 | Direct | ||
| Mike F. Chang | AOSL | Common Shares | Tax liability | -0.33% | -14,419 | 4,355,155 | 16 Mar 2026 | Direct | ||
| Bing Xue | AOSL | Common Share | Tax liability | -7.14% | -9,182 | 119,449 | 16 Mar 2026 | Direct | ||
| Bing Xue | AOSL | Common Share | Award | 28.7% | 30,000 | 134,449 | 16 Mar 2026 | Direct | ||
| Bing Xue | AOSL | Common Share | Sale | -2.08% | $52,783 | $21.92 | -2,408 | 113,631 | 16 Mar 2026 | Direct |
| Yifan Liang | AOSL | Common Shares | Tax liability | -3.91% | -11,499 | 282,645 | 16 Mar 2026 | Direct | ||
| Yifan Liang | AOSL | Common Shares | Award | 17.3% | 45,000 | 305,145 | 16 Mar 2026 | Direct | ||
| Stephen Chunping Chang | AOSL | Common Share | Tax liability | -6.88% | -43,483 | 588,879 | 16 Mar 2026 | Direct | ||
| Stephen Chunping Chang | AOSL | Common Share | Award | 25.9% | 135,000 | 656,379 | 16 Mar 2026 | Direct | ||
| Mike F. Chang | AOSL | Common Shares | Purchase | 0.78% | $640,813 | $19.00 | 33,727 | 4,369,574 | 09 Mar 2026 | Direct |
| Bing Xue | AOSL | Common Share | Sale | -2.08% | $54,932 | $22.33 | -2,460 | 116,039 | 17 Feb 2026 | Direct |
| Bing Xue | AOSL | Common Share | Sale | -0.62% | $16,531 | $22.43 | -737 | 118,499 | 15 Jan 2026 | Direct |
| Wenjun Li | AOSL | Common Share | Tax liability | -4.19% | -3,157 | 72,165 | 02 Jan 2026 | Direct | ||
| Bing Xue | AOSL | Common Share | Tax liability | -6.75% | -8,627 | 119,236 | 02 Jan 2026 | Direct | ||
| Yifan Liang | AOSL | Common Shares | Tax liability | -3.08% | -8,627 | 271,644 | 02 Jan 2026 | Direct | ||
| Stephen Chunping Chang | AOSL | Common Share | Tax liability | -2.08% | -12,002 | 564,862 | 02 Jan 2026 | Direct | ||
| Mike F. Chang | AOSL | Common Shares | Tax liability | -0.38% | -16,700 | 4,335,847 | 02 Jan 2026 | Direct | ||
| Yifan Liang | AOSL | Common Shares | Gift | -0.18% | -500 | 280,271 | 15 Dec 2025 | Direct | ||
| Bing Xue | AOSL | Common Share | Sale | -1.42% | $37,933 | $20.56 | -1,845 | 127,863 | 15 Dec 2025 | Direct |
| Bing Xue | AOSL | Common Share | Sale | -1.4% | $33,505 | $18.16 | -1,845 | 129,708 | 14 Nov 2025 | Direct |
| Hanqing Li | AOSL | Common Share | Award | 31.4% | 5,681 | 23,800 | 11 Nov 2025 | Direct | ||
| So-Yeon Jeong | AOSL | Common Share | Award | 31.4% | 5,681 | 23,800 | 11 Nov 2025 | Direct | ||
| Michael L. Pfeiffer | AOSL | Common Shares | Award | 8.66% | 5,681 | 71,294 | 11 Nov 2025 | Direct | ||
| Lucas S. Chang | AOSL | Common Share | Award | 22.5% | 5,681 | 30,885 | 11 Nov 2025 | Direct | ||
| Claudia Chen | AOSL | Common Share | Award | 21.4% | 5,681 | 32,253 | 11 Nov 2025 | Direct | ||
| King Owyang | AOSL | Common Shares | Award | 8.17% | 5,681 | 75,256 | 11 Nov 2025 | Direct | ||
| Michael J. Salameh | AOSL | Common Shares | Award | 9.61% | 5,681 | 64,824 | 11 Nov 2025 | Direct | ||
| Mike F. Chang | AOSL | Common Shares | Gift | -0.91% | -40,000 | 4,352,547 | 20 Oct 2025 | Direct | ||
| Yifan Liang | AOSL | Common Shares | Gift | -0.11% | -300 | 280,536 | 17 Oct 2025 | Direct | ||
| Stephen Chunping Chang | AOSL | Common Share | Gift | -0.36% | -2,100 | 576,705 | 09 Sep 2025 | Direct | ||
| Bing Xue | AOSL | Common Share | Tax liability | -0.39% | -508 | 131,318 | 15 Aug 2025 | Direct | ||
| Bing Xue | AOSL | Common Share | Sale | -1.39% | $43,782 | $23.73 | -1,845 | 130,951 | 12 May 2025 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.