AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd

CIK 0001387467 41 ready 8-Ks latest July 10, 2026, 4:06 PM ET RSS · JSON

Activity: NORMAL 1 filings / 30d vs 1 baseline

Ready 8-Ks 41

Latest filing July 10, 2026, 4:06 PM ET

Top materiality 0.85

Event mix earnings ×20 · leadership ×6 · other ×6

Sentiment 8 pos · 13 neg · 20 neu

Latest earnings reported 2026-Q3

Executive change recent →

Recent 8-K filings for AOSL

Highest-materiality recent filing

AOS reports Q3 FY2023 GAAP net loss of $18.9M on revenue down 35% YoY

May 4, 2023, 7:59 PM ET earnings materiality 0.85 negative item 2.02 item 9.01 ◈ Earnings Releases

Revenue $132.6M, down 30% QoQ and 35% YoY from $203.2M.
GAAP gross margin 23.2% vs 35.6% a year ago; operating loss of $14.4M.

Read filing →

July 10, 2026, 4:06 PM ET leadership materiality 0.30 neutral item 5.02 item 9.01 ◈ executive_change

Alpha and Omega Semiconductor appoints Joshua Chien as independent director

Joshua Chien appointed to Board effective July 8, 2026, until 2026 annual meeting.
May 12, 2026, 4:05 PM ET M&A materiality 0.50 positive item 2.01 item 9.01 ◈ M&A Transactions

AOSL completes sale of ~20.3% JV stake for $150M; final installment received May 11, 2026

Received final USD $150M installment from SIMIC Holdings on May 11, 2026, closing the transaction.
May 6, 2026, 7:59 PM ET earnings materiality 0.70 negative item 2.02 item 9.01 ◈ Earnings Releases

AOSL Q3 FY2026: Revenue $163.8M, net loss $13.8M ($0.46 loss per share), operating loss widens

Revenue $163.8M, roughly flat YoY from $164.6M; gross margin 21.1% vs 21.4% a year ago.
April 17, 2026, 7:59 PM ET leadership materiality 0.30 neutral item 5.02

Director Lucas S. Chang retires from AOSL board effective April 17, 2026

Dr. Lucas S. Chang notified the company of his retirement from the Board on April 13, 2026.
March 9, 2026, 7:59 PM ET other materiality 0.30 neutral item 5.02

Alpha and Omega Semiconductor approves 2026 incentive bonus plan with EPS and revenue targets

CEO Stephen Chang bonus range: 23% to 220% of base salary.
February 5, 2026, 6:59 PM ET earnings materiality 0.80 negative item 2.02 item 9.01

AOSL reports fiscal Q2 2026 net loss of $13.3M; revenue falls 11% QoQ

Revenue $162.3M, down from $182.5M QoQ and $173.2M YoY; gross margin fell to 21.5%.
November 17, 2025, 6:59 PM ET other materiality 0.15 neutral item 5.07

AOSL shareholders elect all nine directors, approve executive compensation and incentive plan amendment

Mike F. Chang re-elected with 23,813,215 votes for; all nine directors received substantial support.
November 5, 2025, 6:59 PM ET earnings materiality 0.65 negative item 2.02 item 9.01

AOS Q1 FY2026: rev $182.5M, GAAP op loss $4.6M, non-GAAP NI $4.2M ($0.13 EPS)

Revenue $182.5M vs $181.9M YoY (flat); GAAP gross margin 23.5% down from 24.5%.
August 6, 2025, 7:59 PM ET earnings materiality 0.80 negative item 2.02 item 9.01

Alpha & Omega Semiconductor posts Q4 GAAP net loss of $77M with $68M goodwill impairment; guides Q1 rev $170-$178M

Q4 revenue $176.5M (+9.4% YoY); GAAP gross margin 23.4% vs. 25.7% a year ago; GAAP operating loss $11.6M.
July 14, 2025, 7:59 PM ET M&A materiality 0.75 neutral item 1.01 item 7.01 item 9.01

AOS to sell 20.3% of CQJV stake for $150M; expects impairment charge

Sale of ~20.3% equity interest in Chongqing JV (CQJV) to strategic investor for $150M cash, payable in 4 installments.
June 4, 2025, 7:59 PM ET other material materiality 0.20 neutral item 4.01 ◈ Auditor Changes ×2

AOSL amends 8-K to remove Deloitte consultation details; auditor change stands

Dismissed Baker Tilly as independent auditor effective Nov 19, 2024; appointed Deloitte for FY2025.
May 7, 2025, 7:59 PM ET earnings materiality 0.55 negative item 2.02 item 9.01

Alpha and Omega Semi Q3 FY2025 revenue $164.6M, net loss $10.8M; margins shrink QoQ

Revenue $164.6M, down 5% QoQ from $173.2M; up 9.7% YoY from $150.1M.
March 4, 2025, 6:59 PM ET leadership materiality 0.55 neutral item 5.02 ◈ executive_change

Alpha and Omega Semiconductor Executive Chairman Mike F. Chang Steps Down, Appointed EVP of Strategic Initiative

Dr. Mike F. Chang resigned as Executive Chairman effective March 3, 2025, but remains a director and Chairman of the Board.
February 5, 2025, 6:59 PM ET earnings materiality 0.65 negative item 2.02 item 9.01

AOS reports Q2 fiscal 2025 GAAP net loss of $6.6M, revenue $173.2M, down QoQ

GAAP revenue $173.2M, up 4.8% YoY but down 4.8% sequentially from $181.9M.
November 25, 2024, 6:59 PM ET other material materiality 0.60 neutral item 4.01 item 9.01 ◈ Auditor Changes ×2

Alpha and Omega Semiconductor dismisses Baker Tilly, appoints Deloitte as auditor

Audit committee dismissed Baker Tilly effective Nov 19, 2024, and appointed Deloitte & Touche for FY2025.
November 12, 2024, 6:59 PM ET other materiality 0.15 neutral item 5.07

Shareholders elect directors, approve say-on-pay, incentive plan amendment, and auditor ratification

Proposal 1: All nine directors elected with >22M votes each (e.g., Mike F. Chang 22,392,997 for).
November 4, 2024, 6:59 PM ET earnings materiality 0.80 negative item 2.02 item 9.01

AOS posts Q1 FY2025 net loss of $2.5M; revenue $181.9M essentially flat YoY

Revenue $181.9M, up 13% sequentially but flat YoY ($180.6M); GAAP gross margin fell to 24.5% from 28.2%.
August 7, 2024, 7:59 PM ET earnings materiality 0.75 neutral item 2.02 item 9.01

AOS Q4 revenue $161.3M flat YoY; GAAP EPS -$0.09, non-GAAP EPS $0.09

Q4 GAAP net loss $2.7M ($0.09 diluted EPS) vs loss $1.1M YoY; non-GAAP net income $2.6M ($0.09).
May 7, 2024, 7:59 PM ET earnings materiality 0.65 negative item 2.02 item 9.01 ◈ Earnings Releases

AOSL Q3 revenue $150.1M, GAAP net loss $11.2M; margins weaken sequentially

GAAP net loss of $11.2M ($0.39 diluted loss); Non-GAAP net loss $1.2M ($0.04 loss).
February 6, 2024, 6:59 PM ET earnings materiality 0.70 negative item 2.02 item 9.01 ◈ Earnings Releases

AOS reports Q2 FY2024 net loss of $2.9M, revenue down 12% YoY

Revenue $165.3M, down from $188.8M a year ago; gross margin 26.6% vs 28.1%.
January 25, 2024, 6:59 PM ET regulatory materiality 0.70 positive item 8.01 item 9.01

AOSL DOJ closes criminal export-compliance investigation into Huawei transactions without charges

DOJ informed AOSL on Jan 19, 2024, that it closed the criminal investigation with no charges.
November 14, 2023, 6:59 PM ET other materiality 0.15 neutral item 5.07 ◈ Shareholder Votes ×6

Alpha and Omega shareholders approve all six proposals at 2023 annual meeting

All nine director nominees elected each with >20.4M votes for and <0.3M withheld.
November 6, 2023, 6:59 PM ET earnings materiality 0.65 neutral item 2.02 item 9.01 ◈ Earnings Releases

AOS Q1 FY2024 revenue $180.6M, GAAP EPS $0.19; beats prior-quarter loss

Revenue $180.6M, up 12% sequentially from $161.5M, down 13% YoY from $208.5M.
August 9, 2023, 7:59 PM ET earnings materiality 0.75 negative item 2.02 item 9.01

AOSL Q4 FY2023 revenue $161.5M, GAAP net loss $1.1M (-$0.04 EPS); non-GAAP EPS $0.19

Q4 revenue $161.5M, up from $132.6M in Q3 but down 16.7% YoY from $194.0M.
May 4, 2023, 7:59 PM ET earnings materiality 0.85 negative item 2.02 item 9.01 ◈ Earnings Releases

AOS reports Q3 FY2023 GAAP net loss of $18.9M on revenue down 35% YoY

Revenue $132.6M, down 30% QoQ and 35% YoY from $203.2M.
February 24, 2023, 6:59 PM ET leadership materiality 0.60 neutral item 5.02 ◈ executive_change ×2

Alpha and Omega Semiconductor appoints Dr. Mike F. Chang as Executive Chairman and Stephen Chang as CEO

Employment agreements effective March 1, 2023: Dr. Mike F. Chang as Executive Chairman, Stephen Chang as CEO.
February 6, 2023, 6:59 PM ET earnings materiality 0.80 negative item 2.02 item 9.01 ◈ Earnings Releases

AOSL reports Q2 FY2023 revenue $188.8M, down 9.4% QoQ; GAAP EPS $0.21 vs $0.88 prior quarter

Revenue $188.8M, down from $208.5M in prior quarter and $193.3M a year ago.
December 8, 2022, 6:59 PM ET leadership materiality 0.65 neutral item 5.02 item 9.01 ◈ executive_change ×2

AOS CEO transition: Dr. Mike Chang to Executive Chairman, Stephen Chang becomes CEO

Dr. Mike Chang, founder and current CEO, becomes Executive Chairman effective March 1, 2023.
December 1, 2022, 6:59 PM ET other materiality 0.15 neutral item 5.07 ◈ Shareholder Votes ×4

Alpha and Omega Semiconductor reports all proposals passed at 2022 AGM

All nine directors elected: Mike F. Chang, Lucas S. Chang, Stephen C. Chang, Claudia Chen, So-Yeon Jeong, Hanqing (Helen) Li, King Owyang, Michael L. Pfeiffer, Michael J. Salameh.
November 3, 2022, 7:59 PM ET earnings materiality 0.70 positive item 2.02 item 9.01 ◈ Earnings Releases

Alpha and Omega Semiconductor reports FQ1 2023 revenue $208.5M, GAAP EPS $0.88, non-GAAP EPS $1.20

Revenue $208.5M, up 7.5% QoQ and 11.5% YoY.
October 11, 2022, 7:59 PM ET other material materiality 0.35 neutral item 4.01 item 9.01

Alpha and Omega Semiconductor dismisses BDO, appoints Baker Tilly as new auditor

Effective Oct 10, 2022, Audit Committee approved Baker Tilly as independent auditor for FY ending June 30, 2023.
August 10, 2022, 7:59 PM ET earnings materiality 0.70 negative item 2.02 item 9.01

AOS Q4 revenue $194M, down 4.5% QoQ; GAAP EPS $0.53 vs $1.11 prior Q

Revenue $194.0M, down from $203.2M QoQ but up from $177.3M YoY.
May 5, 2022, 7:59 PM ET earnings materiality 0.80 positive item 2.02 item 9.01

AOS fiscal Q3 2022: Revenue $203.2M, GAAP EPS $1.11, Non-GAAP EPS $1.34

Revenue $203.2M (+20% YoY); GAAP gross margin 35.6% (vs 31.1% YoY).
February 28, 2022, 6:59 PM ET other material materiality 0.40 neutral item 5.02

Alpha and Omega Semiconductor boosts executive salaries and sets 2022 bonus plan with targets up to 220% of base

Salaries effective July 1, 2022: CEO Mike Chang from $467,352 to $490,000; President Stephen Chang from $351,000 to $440,000.
February 7, 2022, 6:59 PM ET earnings materiality 0.80 positive item 2.02 item 9.01

AOS Q2 revenue $193.3M, Non-GAAP EPS $1.20, GAAP net income $383M on one-time gain

Revenue $193.3M, up 22% YoY from $158.8M; non-GAAP net income $34.0M vs $17.8M.
January 27, 2022, 6:59 PM ET other material materiality 0.65 neutral item 8.01

Alpha and Omega Semiconductor subsidiary completes $80M financing; AOSL stake reduced to 42%

JV sold 7.82% equity to third-party investors for RMB 509M (~$80M).
December 7, 2021, 6:59 PM ET M&A materiality 0.85 positive item 1.01 item 2.01 item 7.01 item 9.01

AOS sells 2.1% JV stake for $16.9M, deconsolidates, expects $364.8M net gain

Sold 2.1% equity in Chongqing JV for RMB 108M (~$16.9M) to a third-party investor; ownership drops to 48.8%, losing control.
November 12, 2021, 6:59 PM ET other materiality 0.15 neutral item 5.07

AOSL shareholders approve all five proposals at 2021 annual meeting

Elected nine directors; all received >99% of votes cast (excluding broker non-votes).
November 4, 2021, 7:59 PM ET earnings materiality 0.85 positive item 2.02 item 5.02 item 9.01

AOS reports record Q1 revenue $187M, EPS $0.85; CEO voluntarily cuts bonus 50%

Revenue $187.0M (up 23% YoY); GAAP diluted EPS $0.85 vs $0.36 YoY; non-GAAP diluted EPS $1.06 vs $0.55.
August 13, 2021, 7:59 PM ET leadership materiality 0.35 neutral item 5.02 item 9.01 ◈ executive_change

Alpha and Omega Semiconductor appoints Dr. Wenjun Li as COO effective Aug 12, 2021

Dr. Wenjun Li, formerly EVP of Worldwide Manufacturing, promoted to COO effective August 12, 2021.
August 11, 2021, 7:59 PM ET earnings materiality 0.80 positive item 2.02 item 9.01

AOSL reports Q4 FY2021 revenue $177.3M, up 45% YoY; GAAP EPS $0.71

Fiscal Q4 revenue $177.3M, up 45% from $122.4M YoY; GAAP diluted EPS $0.71 vs ($0.00).