Chang Mike F 4
4 · ALPHA & OMEGA SEMICONDUCTOR Ltd · Filed Mar 10, 2026
Research Summary
AI-generated summary of this filing
AOSL 10% Owner Mike Chang Buys 33,727 Shares
What Happened
Mike Chang, a reported 10% owner of Alpha & Omega Semiconductor Ltd (AOSL), made an open-market/private purchase of 33,727 common shares on March 9, 2026 at $19.00 per share, for a total purchase value of $640,813. This was a direct purchase (transaction code P), which is a buy rather than a sale and thus represents an acquisition of stock by an insider.
Key Details
- Transaction date and price: 2026-03-09 — 33,727 shares at $19.00 each (total $640,813). Footnote F1 notes the reported price is exact for all shares.
- Transaction type: Open market or private purchase (code P).
- Shares owned after transaction: Not specified in this Form 4 filing.
- Notable footnotes:
- F2: Includes 41,670 unvested shares subject to Performance Share Units (PSUs) from 2022 and 2024, vesting based on service.
- F3: Includes 45,000 unvested shares subject to MSU with service-based vesting.
- F4: Includes 86,875 shares subject to Restricted Share Units (RSUs) granted across 2022–2025 (vesting schedule applies) and excludes 22,500 unvested PSU shares from March 17, 2025 that vest on future performance.
- Filing date: Form 4 filed 2026-03-10 (one day after the reported transaction); the filing does not indicate a late filing.
Context
As a 10% owner, Chang is a significant shareholder — purchases by large shareholders can be of interest to investors but are not the same as routine executive compensation transactions. The filing shows this was a straight purchase; there is no indication of option exercise, sale, gift, or tax-withholding in this transaction. The listed footnotes show various unvested awards that remain subject to vesting and performance conditions and are separate from the shares acquired on March 9.
Insider Transaction Report
- Purchase
Common Shares
[F1][F2][F3][F4]2026-03-09$19.00/sh+33,727$640,813→ 4,369,574 total
Footnotes (4)
- [F1]The price reported in Column 4 is the exact price at which all shares were purchased.
- [F2]Includes 41,670 unvested shares subject to the Performance Share Unit (PSU) granted on March 15, 2022 and March 15, 2024 which are subject to vesting upon satisfaction of service-based vesting conditions by the Reporting Person.
- [F3]Includes 45,000 unvested shares subject to the MSU which are subject to vesting upon satisfaction of service-based vesting conditions by the Reporting Person.
- [F4]Includes an aggregate of 86,875 shares subject to Restricted Share Unit awards (RSU) granted on March 15, 2022, March 15, 2023, March 15, 2024, and March 17, 2025 which will be issued as such units vest in accordance with their terms, and excludes 22,500 unvested common shares subject to the PSU granted on March 17, 2025, which may become vested upon achievement of certain corporate performance goals in the future.