Security key
630402105
NAPCO SECURITY TECHNOLOGIES, INC - Common Stock (NSSC)
CUSIP: 630402105
Q1 2018 13F Holders as of 31 Mar 2018
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 5,750,158
- Total 13F value
- $67,267,666
- Share change
- +310,022
- SEC-reported price per share
- $11.70
- Number of holders
- 56
- Value change
- +$4,162,936
- Number of buys
- 19
- Number of sells
- 28
- Shares outstanding
- 35,744,422
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2018
Institutions
56
Top holders
10
NSSC full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
NAPCO SECURITY TECHNOLOGIES, INC SEC filings
NAPCO SECURITY TECHNOLOGIES, INC company facts
Broader feeds
Reporting periods
Holder history for CUSIP 630402105
Recent filing periods:
Ownership snapshot
Top reported holders of NSSC - NAPCO SECURITY TECHNOLOGIES, INC - 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
DIMENSIONAL FUND ADVISORS LP
Disclosed value leader
DIMENSIONAL FUND ADVISORS LP
Comparable rows
15/15
Latest evidence
31 Dec 2017
13F
Lead comparable stake: 2.6%
Showing 1-6 of 15 holder rows.
Quick read
DIMENSIONAL FUND ADVISORS LP 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 DIMENSIONAL FUND ADVISORS LP's linked filing trail.
Comparable ownership
Top 5
DIMENSIONAL FUND ADVISORS LP
2.6%
BlackRock Finance, Inc.
2.5%
WASATCH ADVISORS LP
1.7%
VANGUARD GROUP INC
1.2%
RENAISSANCE TECHNOLOGIES LLC
0.79%
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 |
|---|---|---|---|---|---|
| DIMENSIONAL FUND ADVISORS LP |
13F
Company
|
2.6%
|
$8,112,000
927,056 shares
|
— | 31 Dec 2017 |
| BlackRock Finance, Inc. |
13F
Company
|
2.5%
|
$7,697,000
879,683 shares
|
— | 31 Dec 2017 |
| WASATCH ADVISORS LP |
13F
Company
|
1.7%
|
$5,290,000
604,569 shares
|
— | 31 Dec 2017 |
| VANGUARD GROUP INC |
13F
Company
|
1.2%
|
$3,833,000
438,008 shares
|
— | 31 Dec 2017 |
| RENAISSANCE TECHNOLOGIES LLC |
13F
Company
|
0.79%
|
$2,480,000
283,400 shares
|
— | 31 Dec 2017 |
| Teton Advisors, Inc. |
13F
Company
|
0.76%
|
$2,369,000
270,757 shares
|
— | 31 Dec 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 Q1 2018
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
56
Shares
5,750,158
Rows available
56
| 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 Q1 2018 vs Q1 2018 Across Filers
Q1 2018 holders
56
Q1 2018 holders
56
Holder diff
0
| Investor | Q1 2018 Shares | Q1 2018 Shares | Share Diff | Share Chg % | Q1 2018 value | Q1 2018 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend