Napco Security Technologies is a security & protection services company in the industrials sector on NASDAQ, led by Richard L. Soloway, with a market cap of $1.5B. As of Q3 2025, 89% of shares are held by 238 institutional investors, with BlackRock, Inc. as the largest holder at 8.09%.
Overview of institutional ownership in NSSC as of Q3 2025 with a market cap of $1.5B
Based on market cap of $1.5B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.
Institutions with the largest positions in NSSC as of Q3 2025
| Institution | Position Value |
|---|---|
B BlackRock, Inc. Institution | $123.9M 0.00% of portfolio |
VANGUARD GROUP INC Institution | $122.4M 0.00% of portfolio |
Fundsmith LLP Long Only Manager | $76.4M 0.39% of portfolio |
HENDERSON GROUP PLC Institution | $65.5M 0.03% of portfolio |
Copeland Capital Management, LLC Long Only Manager | $64.3M 1.34% of portfolio |
Doma Perpetual Capital Management LLC Hedge Fund•Value | $50.1M 16.81% of portfolio |
GEODE CAPITAL MANAGEMENT LLC ETF Provider | $44.0M 0.00% of portfolio |
WELLINGTON MANAGEMENT CO LLP Long Only Manager | $43.3M 0.01% of portfolio |
ARROWSTREET CAPITAL LIMITED PARTNERSHIP Hedge Fund•Quant | $37.0M 0.02% of portfolio |
STATE STREET CORP Institution | $33.8M 0.00% of portfolio |
Institutional buying and selling activity for NSSC in Q3 2025
| Institution | Net Bought |
|---|---|
Fundsmith LLP Long Only Manager | +$35.4M +824.9K shares |
ARROWSTREET CAPITAL LIMITED PARTNERSHIP Hedge Fund•Quant | +$32.2M +749.1K shares |
FIRST TRUST ADVISORS LP ETF Provider | +$24.3M +565.9K shares |
DEUTSCHE BANK AG\ Institution | +$14.7M +342.9K shares |
A ADAGE CAPITAL PARTNERS GP LLC Institution | +$9.4M +220.0K shares |
CRAWFORD INVESTMENT COUNSEL INC Long Only Manager | +$4.5M +103.8K shares |
4D Advisors, LLC Hedge Fund•Long/Short | +$4.3M +100.0K shares |
Trexquant Investment LP Hedge Fund•Quant | +$4.1M +94.7K shares |
HENDERSON GROUP PLC Institution | +$2.4M +55.6K shares |
THRIVENT FINANCIAL FOR LUTHERANS Insurance Manager | +$2.2M +51.0K shares |
| Institution | Net Sold |
|---|---|
JPMORGAN CHASE & CO Institution | −$14.6M −340.1K shares |
FMR LLC Institution | −$14.3M −333.3K shares |
ENVESTNET ASSET MANAGEMENT INC Long Only Manager | −$9.5M −221.3K shares |
MORGAN STANLEY RIA/Wealth | −$9.4M −219.9K shares |
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy | −$8.7M −202.6K shares |
GOLDMAN SACHS GROUP INC Institution | −$6.9M −161.7K shares |
R ROYAL BANK OF CANADA Institution | −$6.8M −157.7K shares |
UNITED CAPITAL FINANCIAL ADVISERS, LLC RIA/Wealth | −$6.1M −207.1K shares |
CenterBook Partners LP Hedge Fund•Market Neutral | −$6.1M −142.8K shares |
VOLORIDGE INVESTMENT MANAGEMENT, LLC Hedge Fund•Multi-Strategy | −$5.2M −121.8K shares |
Institutions that initiated new positions or completely exited NSSC in Q3 2025
| Institution | Position Value |
|---|---|
A ADAGE CAPITAL PARTNERS GP LLC Institution | $9.4M 220.0K shares |
CRAWFORD INVESTMENT COUNSEL INC Long Only Manager | $4.5M 103.8K shares |
4D Advisors, LLC Hedge Fund•Long/Short | $4.3M 100.0K shares |
CBOE Vest Financial, LLC ETF Provider | $1.6M 37.5K shares |
POLEN CAPITAL MANAGEMENT LLC Long Only Manager | $539.8K 12.6K shares |
Y Yorktown Management & Research Co Inc Institution | $425.2K 9.9K shares |
A AXQ CAPITAL, LP Hedge Fund•Market Neutral | $295.5K 6.9K shares |
MERCER GLOBAL ADVISORS INC /ADV RIA/Wealth | $264.8K 6.2K shares |
Atom Investors LP Hedge Fund•Market Neutral | $262.6K 6.1K shares |
$249.1K 5.8K shares |
| Institution | Previous Position |
|---|---|
UNITED CAPITAL FINANCIAL ADVISERS, LLC RIA/Wealth | $6.1M 207.1K shares |
H | $4.8M 162.8K shares |
SG Capital Management LLC Hedge Fund•Event Driven | $4.6M 154.7K shares |
J JANE STREET GROUP, LLC Institution | $2.3M 76.7K shares |
Taylor Frigon Capital Management LLC RIA/Wealth | $1.9M 62.5K shares |
BALYASNY ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy | $1.1M 37.2K shares |
C CAXTON ASSOCIATES LLP Institution | $729.6K 24.6K shares |
Magnetar Financial LLC Hedge Fund•Multi-Strategy | $655.1K 22.1K shares |
Newbridge Financial Services Group, Inc. RIA/Wealth | $564.5K 19.0K shares |
E EntryPoint Capital, LLC Hedge Fund•Long/Short | $520.8K 17.5K shares |
Institutions with the largest Call and Put options positions in NSSC as of Q3 2025
| Institution | Position Value |
|---|---|
P PEAK6 LLC Institution | $2.2M 508.0 contracts |
Walleye Trading LLC RIA/Wealth | $493.9K 115.0 contracts |
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $287.8K 67.0 contracts |
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | - - contracts |
| Institution | Position Value |
|---|---|
P PEAK6 LLC Institution | $451.0K 105.0 contracts |
Walleye Trading LLC RIA/Wealth | $120.3K 28.0 contracts |
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | - - contracts |
Institutions with NSSC as the highest % of their portfolio as of Q3 2025
| Institution | Portfolio Weight |
|---|---|
Doma Perpetual Capital Management LLC Hedge Fund•Value | 16.81% $50.1M |
4D Advisors, LLC Hedge Fund•Long/Short | 2.29% $4.3M |
Laurus Investment Counsel Inc. Long Only Manager | 1.85% $2.7M |
Redmond Asset Management, LLC Long Only Manager | 1.35% $5.5M |
Copeland Capital Management, LLC Long Only Manager | 1.34% $64.3M |
I ISTHMUS PARTNERS, LLC RIA/Wealth | 1.17% $5.3M |
R RAFFLES ASSOCIATES LP Hedge Fund•Value | 1.01% $1.0M |
Bridge City Capital, LLC Long Only Manager | 0.78% $2.9M |
Granite Investment Partners, LLC Long Only Manager | 0.73% $12.8M |
EMERALD ADVISERS INC/PA Long Only Manager | 0.64% $20.0M |
Discover hedge funds investing in NSSC

| Top Holding | Sector | Market Value | Weight |
|---|---|---|---|
Consumer Electronics Technology | $306.1M | 4.29% | |
Regulated Electric Utilities | $103.0M | 1.44% | |
Semiconductors Technology | $79.9M | 1.12% |
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