Security key
82706C108
Silicon Motion Technology CORP - COMMON STOCK (SIMO)
CUSIP: 82706C108
Q4 2017 13F Holders as of 31 Dec 2017
- Security type / class
- Equity / COMMON STOCK
- Total 13F shares
- 30,282,528
- Total 13F value
- $1,603,636,085
- Share change
- +1,061,424
- Put/Call ratio
- 298%
- SEC-reported price per share
- $52.96
- Number of holders
- 157
- Value change
- +$68,665,131
- Number of buys
- 85
- Number of sells
- 67
- Shares outstanding
- 135,934,680
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 2017
Institutions
157
Top holders
10
SIMO full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q1 2018
Previous quarter: Q3 2017
Silicon Motion Technology CORP SEC filings
Silicon Motion Technology CORP company facts
Broader feeds
Reporting periods
Holder history for CUSIP 82706C108
Recent filing periods:
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
WELLINGTON MANAGEMENT GRO...
Disclosed value leader
WELLINGTON MANAGEMENT GRO...
Comparable rows
15/15
Latest evidence
30 Sep 2017
13F
Lead comparable stake: 2.6%
Showing 1-6 of 15 holder rows.
Quick read
WELLINGTON MANAGEMENT GROUP LLP leads the comparable SEC ownership view at 2.6%.
15 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 WELLINGTON MANAGEMENT GROUP LLP's linked filing trail.
Comparable ownership
Top 5
WELLINGTON MANAGEMENT GROUP LLP
2.6%
LAZARD ASSET MANAGEMENT LLC
1.5%
ARGA Investment Management, LP
1.4%
Ninety One UK Ltd
1.2%
FMR LLC
1.2%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| WELLINGTON MANAGEMENT GROUP LLP |
13F
Company
|
2.6%
|
$166,775,000
3,472,300 shares
|
— | 30 Sep 2017 |
| LAZARD ASSET MANAGEMENT LLC |
13F
Company
|
1.5%
|
$101,071,000
2,104,361 shares
|
— | 30 Sep 2017 |
| ARGA Investment Management, LP |
13F
Company
|
1.4%
|
$88,365,000
1,839,779 shares
|
— | 30 Sep 2017 |
| Ninety One UK Ltd |
13F
Company
|
1.2%
|
$78,479,000
1,633,951 shares
|
— | 30 Sep 2017 |
| FMR LLC |
13F
Company
|
1.2%
|
$76,783,000
1,598,661 shares
|
— | 30 Sep 2017 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ |
13F
Company
|
0.86%
|
$56,394,000
1,174,100 shares
|
— | 30 Sep 2017 |
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 2017
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
157
Shares
30,282,528
Rows available
157
| 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 2017 vs Q3 2017 Across Filers
Q3 2017 holders
158
Q4 2017 holders
157
Holder diff
-1
| Investor | Q3 2017 Shares | Q4 2017 Shares | Share Diff | Share Chg % | Q3 2017 value | Q4 2017 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend