Security key
82706C108
Silicon Motion Technology CORP - COMMON STOCK (SIMO)
CUSIP: 82706C108
Q3 2021 13F Holders as of 30 Sep 2021
- Security type / class
- Equity / COMMON STOCK
- Total 13F shares
- 26,807,406
- Total 13F value
- $1,851,402,892
- Share change
- -21,992
- Put/Call ratio
- 199%
- SEC-reported price per share
- $68.98
- Number of holders
- 200
- Value change
- +$3,465,802
- Number of buys
- 102
- Number of sells
- 96
- Shares outstanding
- 135,989,493
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
Q3 2021
Institutions
200
Top holders
10
SIMO full security history
Ownership snapshot
Full 13F holder table
Silicon Motion Technology CORP SEC filings
Silicon Motion Technology CORP company facts
Broader feeds
Ownership snapshot
Top reported holders of SIMO - Silicon Motion Technology CORP - COMMON STOCK (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
CARDINAL CAPITAL MANAGEME...
Disclosed value leader
CARDINAL CAPITAL MANAGEME...
Comparable rows
0/15
Latest evidence
30 Jun 2021
13F
Highest disclosed value: $171,142,000
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
CARDINAL CAPITAL MANAGEMENT LLC /CT has the largest disclosed position value at $171.14M.
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 CARDINAL CAPITAL MANAGEMENT LLC /CT's linked filing trail.
Disclosed position value
Top 5
CARDINAL CAPITAL MANAGEMENT LLC /CT
$171.14M
Yiheng Capital Management, L.P.
$112.95M
WESTFIELD CAPITAL MANAGEMENT CO LP
$94.76M
LAZARD ASSET MANAGEMENT LLC
$89.99M
MILLENNIUM MANAGEMENT LLC
$84.17M
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 |
|---|---|---|---|---|---|
| CARDINAL CAPITAL MANAGEMENT LLC /CT |
13F
Company
|
—
denominator unverified
|
$171,142,000
2,669,915 shares
|
— | 30 Jun 2021 |
| Yiheng Capital Management, L.P. |
13F
Company
|
—
denominator unverified
|
$112,952,000
1,762,123 shares
|
— | 30 Jun 2021 |
| WESTFIELD CAPITAL MANAGEMENT CO LP |
13F
Company
|
—
denominator unverified
|
$94,755,000
1,478,232 shares
|
— | 30 Jun 2021 |
| LAZARD ASSET MANAGEMENT LLC |
13F
Company
|
—
denominator unverified
|
$89,994,000
1,403,979 shares
|
— | 30 Jun 2021 |
| MILLENNIUM MANAGEMENT LLC |
13F
Company
|
—
denominator unverified
|
$84,172,000
1,313,142 shares
|
— | 30 Jun 2021 |
| ACADIAN ASSET MANAGEMENT LLC |
13F
Company
|
—
denominator unverified
|
$79,905,000
1,246,577 shares
|
— | 30 Jun 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 Q3 2021
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
200
Shares
26,807,406
Rows available
200
| 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 Q3 2021 vs Q2 2021 Across Filers
Q2 2021 holders
191
Q3 2021 holders
200
Holder diff
9
| Investor | Q2 2021 Shares | Q3 2021 Shares | Share Diff | Share Chg % | Q2 2021 value | Q3 2021 value | Value change | Value Chg % |
|---|