Security key
G6331P104
ALPHA & OMEGA SEMICONDUCTOR Ltd - Common Share (AOSL)
CUSIP: G6331P104
Q4 2021 13F Holders as of 31 Dec 2021
- Security type / class
- Equity / Common Share
- Total 13F shares
- 14,999,468
- Total 13F value
- $905,418,613
- Share change
- +29,788
- Put/Call ratio
- 87%
- SEC-reported price per share
- $60.56
- Number of holders
- 175
- Value change
- +$7,097,497
- Number of buys
- 95
- Number of sells
- 61
- Shares outstanding
- 30,303,604
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2021
Institutions
175
Top holders
10
AOSL full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2026
ALPHA & OMEGA SEMICONDUCTOR Ltd SEC filings
ALPHA & OMEGA SEMICONDUCTOR Ltd company facts
Broader feeds
Reporting periods
Holder history for CUSIP G6331P104
Recent filing periods:
Ownership snapshot
Top reported holders of AOSL - ALPHA & OMEGA SEMICONDUCTOR Ltd - Common Share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
DIMENSIONAL FUND ADVISORS LP
Disclosed value leader
DIMENSIONAL FUND ADVISORS LP
Comparable rows
0/15
Latest evidence
30 Sep 2021
13F
Highest disclosed value: $60,343,000
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
DIMENSIONAL FUND ADVISORS LP has the largest disclosed position value at $60.34M.
0 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens DIMENSIONAL FUND ADVISORS LP's linked filing trail.
Disclosed position value
Top 5
DIMENSIONAL FUND ADVISORS LP
$60.34M
BlackRock Finance, Inc.
$45.86M
VANGUARD GROUP INC
$42.84M
STATE STREET CORP
$26.05M
FMR LLC
$25.26M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| DIMENSIONAL FUND ADVISORS LP |
13F
Company
|
—
denominator unverified
|
$60,343,000
1,923,573 shares
|
— | 30 Sep 2021 |
| BlackRock Finance, Inc. |
13F
Company
|
—
denominator unverified
|
$45,859,000
1,461,916 shares
|
— | 30 Sep 2021 |
| VANGUARD GROUP INC |
13F
Company
|
—
denominator unverified
|
$42,838,000
1,365,557 shares
|
— | 30 Sep 2021 |
| STATE STREET CORP |
13F
Company
|
—
denominator unverified
|
$26,047,000
830,310 shares
|
— | 30 Sep 2021 |
| FMR LLC |
13F
Company
|
—
denominator unverified
|
$25,262,000
805,296 shares
|
— | 30 Sep 2021 |
| GAGNON SECURITIES LLC |
13F
Company
|
—
denominator unverified
|
$23,462,000
747,927 shares
|
— | 30 Sep 2021 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q4 2021
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
175
Shares
14,999,468
Rows available
175
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q4 2021 vs Q3 2021 Across Filers
Q3 2021 holders
128
Q4 2021 holders
175
Holder diff
47
| Investor | Q3 2021 Shares | Q4 2021 Shares | Share Diff | Share Chg % | Q3 2021 value | Q4 2021 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend