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AOSL · Alpha & Omega Semiconductor Ltd
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AOSL Alpha & Omega Semiconductor (AOSL) Insider Trading, Ownership & Congress Trades

Semiconductors & Electronics · Semiconductors & related devices · CIK 0001387467
SEC filings
Insider buyers, 180 days
0
House members buying, 1 year
0
STOCK Act, US House only, disclosed up to 45 days after the trade
Funds added, last quarter
126
13F, latest reported quarter

What the filings say about AOSL

Insiders, 180 days
-$623.3K net sold
2 sellers · 0% of sales under a 10b5-1 plan

Alpha & Omega Semiconductor insider trades (Form 4)

Form 4 buys and sells (codes P and S). Grants, option exercises and conversions excluded.

Over the last 180 days, ALPHA & OMEGA SEMICONDUCTOR Ltd insiders sold a net $623.3K of stock across 92 Form 4 purchases and sales, with no insider buying. Source: SEC Form 4 filings, as of 2026-10-28.

Insider
Filed
Shares
Value
Since filing
EVP-WW Sales & Bus Development
SELL
2026-07-17 SECtraded 2026-07-16
875
$29.7K
-22.0%
Context
  • 38 earlier Form 4 trades (code P or S) here by this insider (38 sales), the last on Jun 16, 2026.
  • The trade is 0.7% of the 122,785 shares held after it.
  • No other insider sold within 30 days.
  • 126 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: EVP-WW Sales & Bus Development Xue Bing sold about $29.7K of AOSL on Jul 16, 2026; 126 funds added in the latest 13F quarter.
EVP-WW Sales & Bus Development
SELL
2026-06-17 SECtraded 2026-06-16
4,916
$231.5K
-49.0%
Context
  • 37 earlier Form 4 trades (code P or S) here by this insider (37 sales), the last on May 18, 2026.
  • The trade is 4.0% of the 123,660 shares held after it.
  • 1 other insider sold within 30 days.
  • 126 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: EVP-WW Sales & Bus Development Xue Bing sold about $231.5K of AOSL on Jun 16, 2026; 1 other insider sold within 30 days and 126 funds added in the latest 13F quarter.
Director
SELL
2026-05-26 SECtraded 2026-05-22
217
$8.8K
-49.9%
Context
  • 3 earlier Form 4 trades (code P or S) here by this insider (3 sales), the last on Dec 5, 2024.
  • The trade is 0.8% of the 28,192 shares held after it.
  • 1 other insider sold within 30 days.
  • 126 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director Chen Claudia sold about $8.8K of AOSL on May 22, 2026; 1 other insider sold within 30 days and 126 funds added in the latest 13F quarter.
Director
SELL
2026-05-26 SECtraded 2026-05-22
3,844
$151.7K
-49.9%
Context
  • 3 earlier Form 4 trades (code P or S) here by this insider (3 sales), the last on Dec 5, 2024.
  • The trade is 13.5% of the 28,409 shares held after it.
  • 1 other insider sold within 30 days.
  • 126 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director Chen Claudia sold about $151.7K of AOSL on May 22, 2026; 1 other insider sold within 30 days and 126 funds added in the latest 13F quarter.
EVP-WW Sales & Bus Development
SELL
2026-05-20 SECtraded 2026-05-18
4,916
$201.6K
-37.4%
Context
  • 36 earlier Form 4 trades (code P or S) here by this insider (36 sales), the last on Apr 16, 2026.
  • The trade is 3.8% of the 127,701 shares held after it.
  • 1 other insider sold within 30 days.
  • 126 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: EVP-WW Sales & Bus Development Xue Bing sold about $201.6K of AOSL on May 18, 2026; 1 other insider sold within 30 days and 126 funds added in the latest 13F quarter.
92 transactions on record
Since filing: total return from the first close after the filing to the latest close, dividend-adjusted. Not a forecast.
Context lines are counts over the filings above and returns from our own price history, never a price level. Not investment advice.
Showing the latest few. to see 87 more transactions and use the screener and CSV export. We store only your email; there is no password.
Seven facts, ranked against the sector · Rank is not a forecast
Insiders
net -$623.3K over 180 days
more than 68% of Semiconductors & Electronics
Congress
no House purchase disclosed in the last 12 months
Funds
126 funds bought in last quarter
below 56% of Semiconductors & Electronics
Revenue
-2.5% year over year
below 74% of Semiconductors & Electronics
Margin
-6.2% net margin
below 59% of Semiconductors & Electronics
Buybacks
$18.2M repurchased, FY to 2026-06-30
below 63% of Semiconductors & Electronics
Short interest
11.8% of the float short (float per yahoo 2026-10-26) · 5.0 days to cover · settled 2026-09-30
more than 75% of Semiconductors & Electronics
What changed in the last 30 days
Oct 28Insider selling stopped: no sales in 90 days after 5 in the prior 90
Why it matters
The absence is the signal: 5 sales in one 90-day window and none in the next is a change of behaviour, not a filing.

Watch AOSL

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The year, with the filings on it
Total return over 12 months. Each marker is a filing; hover or tap one for the detail.
-16.4%12M
-40%+0%+41%+82%2025-102025-122026-022026-042026-062026-082026-10 2026-03-09 · Chang Mike F bought $640.8K2026-04-14 · Liang Yifan sold $358.0K2026-04-17 · Chang Stephen Chunping sold $345.9K2026-04-17 · Liang Yifan sold $301.9K2026-04-14 · Liang Yifan sold $238.2K2026-06-16 · Xue Bing sold $231.5K2026-04-14 · Liang Yifan sold $214.3K2026-05-18 · Xue Bing sold $201.6K2026-04-14 · Chang Stephen Chunping sold $178.4K2026-05-22 · Chen Claudia sold $151.7K2026-04-17 · Chang Stephen Chunping sold $118.0K2026-04-16 · Xue Bing sold $57.2K2026-02-17 · Xue Bing sold $54.9K2026-03-16 · Xue Bing sold $52.8K2026-04-17 · Chang Stephen Chunping sold $49.1K2025-12-15 · Xue Bing sold $37.9K2025-11-14 · Xue Bing sold $33.5K2026-07-16 · Xue Bing sold $29.7K2026-01-15 · Xue Bing sold $16.5K2026-05-22 · Chen Claudia sold $8.8K2026-07-16 · BING XUE filed to sell $29.7K
Insider buyInsider sellForm 144 (planned sale)
Indexed to 100, dividend-adjusted, not a price chart. When a name files heavily, the largest trades are drawn first.

Who owns AOSL: institutional holders (13F)

13F holdings, latest reported quarter
4,256,528 sh
$201.5M
2,347,448 sh
$111.1M

Congress trades in AOSL

No Congress trades reported
No House member has disclosed a trade in this stock. See what Congress is buying.

Activist and 5% holders (13D/13G)

No 5%+ ownership filings
Nobody has filed for crossing 5%. That is a fact, not missing data.

AOSL planned insider sales (Form 144)

Notice of intent to sell, filed before any sale
BING XUE
Filed 2026-07-16
$29.7K

AOSL mutual fund holders (N-PORT)

Funds ranked by the share of their own portfolio in this stock (N-PORT).
Small Cap Core Trust
$3.9M position · as of 2026-06-30
1.1%
Invesco NASDAQ Future Gen 200 ETF
$166.1K position · as of 2026-05-31
0.9%
Small Cap Core Fund
$15.1M position · as of 2026-07-31
0.8%
Invesco S&P Smallcap 600 Pure Value ETF
$1.7M position · as of 2026-07-31
0.6%
Invesco S&P SmallCap Information Technology ETF
$2.3M position · as of 2026-05-31
0.4%
NAA SMALL CAP VALUE SERIES
$150.9K position · as of 2026-06-30
0.3%
SEC N-PORT, monthly, about 60 days late · funds ≥ $10M · % is the share of the fund's own portfolio
Live price
Daily candles from TradingView, under their licence. No filings marked.
Why this name is on the desk
The complete filing record, in one place.
The record shows a net $623.3K sold by insiders over 180 days, 126 funds added last quarter. Each figure is a federal filing, dated the day it went public.
Same sector, ranked by filing activity
Sector by SEC SIC code

AOSL financials

Revenue growth
-2.5%
XBRL, annual
Net margin
-6.2%
Ratios from the company's XBRL filings, latest filings
Revenue, TTM
$678.9M
four quarters, 2025-07-01 to 2026-06-30
Net margin, TTM
-6.2%
net income over revenue, 2025-07-01 to 2026-06-30
Free cash flow, TTM
-$68.1M
operating cash flow minus capex, 2025-07-01 to 2026-06-30
Debt to equity
0.00x
long-term 2026-06-30 plus current 2026-06-30; equity 2026-06-30
Cash flow to debt
-4.49x
TTM operating cash flow over long-term 2026-06-30 plus current 2026-06-30
Return on equity
-5.2%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on assets
-4.2%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on invested capital
n/a
pre-tax loss, no effective tax rate to apply
Return on capital employed
-5.0%
operating income (EBIT proxy) over average of 2025-06-30 and 2026-06-30 minus current liabilities
P/E, trailing
n/a
trailing loss, a multiple of a loss is not meaningful
Enterprise value
$564.2M
market value at close 2026-10-27 on 2026-07-31 shares, plus long-term 2026-06-30 plus current 2026-06-30, minus cash 2026-06-30
FCF yield
-9.2%
TTM free cash flow over market value at close 2026-10-27
PEG, trailing
n/a
trailing loss, a multiple of a loss is not meaningful
Price as of 2026-10-27. Hover or tap a tile for its yearly and quarterly history.
Method
TTM is four consecutive fiscal quarters; Q4 is the year minus nine months when not filed. Returns use the average of opening and closing balances. EBIT is approximated by operating income. PEG uses trailing EPS growth.
Fundamentals
Annual figures from XBRL filings. Pick a past date to see them as known then.
2026-062025-062024-062023-06
Revenue$678.9M$696.2M$657.3M$691.3M
Gross profit$151.5M$161.0M$171.9M$199.5M
Operating income-$43.2M-$28.4M-$3.8M$22.5M
Net income-$42.3M-$97.0M-$11.1M$12.4M
EPS (diluted)-1.41-3.30-0.390.42
Operating cash flow-$16.3M$29.7M$25.7M$20.5M
Cash$180.8M$153.1M$175.1M$195.2M
Long-term debt$537.0K$14.9M$26.7M$38.4M
Buybacks$18.2M$0$0$13.4M
SEC XBRL, fiscal years, as known on 2026-10-28

AOSL Stock Sonar score 6/7 axes

Find similar shapesCompare

AOSL ranks highest on financial health (48th percentile) and risk and compliance (47th), and lowest on growth (26th), among Semiconductors & Electronics peers.

ProfitHealthGrowthInsidersInstitutionsRisk
Profitability
36
Inputs
  • Return on equity-5.2% · 36 pct, sector of 154
  • Return on assets-4.2% · 36 pct, sector of 171
  • Return on invested capitalpre-tax loss, no effective tax rate to apply
  • Return on capital employed-5.0% · 35 pct, sector of 155
Financial health
48
Inputs
  • Debt to equity0.00x · 84 pct, sector of 152
  • Cash flow to debt-4.49x · 12 pct, sector of 136
Growth
26
Inputs
  • Revenue growth, YoY-2.5% · 26 pct, sector of 194
  • Backlog growth, YoYno backlog line filed, or no year-earlier backlog
Insider conviction
34
Inputs
  • Net Form 4 buying (codes P and S), 180d-$623K · 68 pct, sector of 147
  • Insider buyers, 180d0 · 0 pct, sector of 151
Institutional and government
44
Inputs
  • Funds adding, latest quarter126 · 44 pct, sector of 184
  • Congress net buyers, 365dno Congress trades in 365 days
  • Federal contracts, 180dno federal contracts in 180 days
  • Lobbying spend, 4 quartersno lobbying filings in the last four quarters
Risk and compliance
47
Inputs
  • Short interest, % of float+11.8% · 25 pct, sector of 221
  • Recalls per $1B revenue, 3ynot measured for this sector, almost no peer has an event
  • EPA cases per $1B revenue, 5ynot measured for this sector, almost no peer has an event
  • New text in Risk Factors, latest 10-K+8.2% · 70 pct, sector of 152
1 not measured: US patents
  • US patents needs 1 of 2 inputs, 0 present: patent data not loaded yet

6 of 7 axes scored. Each is a percentile against sector peers (all companies when the sector is thin); higher is better. An unscored axis is unmeasured, not low. How it is scored

AOSL filings, in plain words

Are Alpha & Omega Semiconductor insiders buying or selling AOSL?

In the 180 days to 2026-10-28, Alpha & Omega Semiconductor insiders were net sellers, a net $623.3K across purchases and sales reported on Form 4, by 2 sellers.

Read the full summary

In the 180 days to 2026-10-28, Alpha & Omega Semiconductor insiders were net sellers of AOSL, a net $623.3K across purchases and sales reported on Form 4 by 2 sellers. None of the 5 insider sales was flagged as made under a Rule 10b5-1 plan. Each figure is counted from SEC and House filings as of 2026-10-28, dated the day the filing was made public.

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