Data spanning the past 90 days through December 12, 2025 reveals that ALPHA & OMEGA SEMICONDUCTOR's three principal insider shareholders consist of Director Mike F Chang (4.35Mn shares), Chief Executive Officer Stephen Chunping Chang (576.71K shares), CFO And Corp Secretary Yifan Liang (280.54K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Mike F Chang | 4,352,547 | 21 Oct, 2025 | |
| Stephen Chunping Chang | Chief Executive Officer | 576,705 | 10 Sep, 2025 |
| Yifan Liang | CFO And Corp Secretary | 280,536 | 21 Oct, 2025 |
| Yueh-Se Ho | 193,592 | 15 Nov, 2021 | |
| Bing Xue | EVP Ww Sales & Bus Development | 129,708 | 17 Nov, 2025 |
| King Owyang | 75,256 | 12 Nov, 2025 | |
| Wenjun Li | Chief Operating Officer | 74,213 | 18 Mar, 2025 |
| Michael L Pfeiffer | 71,294 | 12 Nov, 2025 | |
| Michael J Salameh | 64,824 | 12 Nov, 2025 | |
| Claudia Chen | 32,253 | 12 Nov, 2025 | |
| Lucas S. Chang | 30,885 | 12 Nov, 2025 | |
| Hanqing Li | 23,800 | 12 Nov, 2025 | |
| So-Yeon Jeong | 23,800 | 12 Nov, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 14 Nov, 2025 | Bing Xue | Common Share | D | 1,845 | $18.16 | 129,708 | D | S |
| 11 Nov, 2025 | Claudia Chen | Common Share | A | 5,681 | $0.00 | 32,253 | D | A |
| 11 Nov, 2025 | Lucas S. Chang | Common Share | A | 5,681 | $0.00 | 30,885 | D | A |
| 11 Nov, 2025 | King Owyang | Common Shares | A | 5,681 | $0.00 | 75,256 | D | A |
| 11 Nov, 2025 | Michael L Pfeiffer | Common Shares | A | 5,681 | $0.00 | 71,294 | D | A |
| 11 Nov, 2025 | Michael J Salameh | Common Shares | A | 5,681 | $0.00 | 64,824 | D | A |
| 11 Nov, 2025 | Hanqing Li | Common Share | A | 5,681 | $0.00 | 23,800 | D | A |
| 11 Nov, 2025 | So-Yeon Jeong | Common Share | A | 5,681 | $0.00 | 23,800 | D | A |
| 20 Oct, 2025 | Mike F Chang | Common Shares | D | 40,000 | $0.00 | 4,352,547 | D | G |
| 17 Oct, 2025 | Yifan Liang | Common Shares | D | 300 | $0.00 | 280,536 | D | G |
| 09 Sep, 2025 | Stephen Chunping Chang | Common Share | D | 2,100 | $0.00 | 576,705 | D | G |
| 09 Sep, 2025 | Stephen Chunping Chang | - | - | 576,705 | D | |||
| 15 Aug, 2025 | Bing Xue | Common Share | D | 508 | $26.50 | 131,318 | D | F |
| 12 May, 2025 | Bing Xue | Common Share | D | 1,845 | $23.73 | 130,951 | D | S |
| 17 Mar, 2025 | Wenjun Li | - | - | 69,064 | D | |||
| 17 Mar, 2025 | Wenjun Li | Common Share | A | 10,000 | $0.00 | 69,064 | D | A |
| 17 Mar, 2025 | Yifan Liang | Common Shares | A | 22,500 | $0.00 | 277,182 | D | A |
| 17 Mar, 2025 | Stephen Chunping Chang | Common Share | A | 67,500 | $0.00 | 552,187 | D | A |
| 17 Mar, 2025 | Bing Xue | Common Share | A | 15,000 | $0.00 | 130,368 | D | A |
| 17 Mar, 2025 | Mike F Chang | Common Shares | A | 22,500 | $0.00 | 4,402,870 | D | A |