Napco Security Ownership | Who Owns Napco Security?


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Napco Security Ownership Summary


Napco Security is owned by 56.59% institutional investors, 5.26% insiders, and 38.15% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 9.04% of NSSC shares. Smithson Investment Trust Ord is the top mutual fund, with 4.99% of its assets in Napco Security shares.

NSSC Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockNapco Security56.59%5.26%38.15%
SectorIndustrials Stocks 47.66%12.52%39.82%
IndustrySecurity & Protection Service Stocks30.31%7.08%62.62%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Blackrock funding, inc. /de3.22M9.04%$134.46M
Vanguard group2.88M8.08%$120.18M
Blackrock2.71M7.36%$140.82M
Fundsmith llp1.78M4.90%$76.44M
Copeland capital management1.42M3.98%$59.25M
Doma perpetual capital management1.17M3.21%$50.05M
Geode capital management1.03M2.88%$42.91M
Wellington management group llp1.01M2.78%$43.33M
Janus henderson group939.36K2.55%$33.40M
Arrowstreet capital, limited partnership861.14K2.37%$36.99M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Doma perpetual capital management1.17M16.81%$50.05M
4d advisors100.00K2.29%$4.29M
Leverage partners absolute return fund spc15.00K1.62%$779.00K
Laurus investment counsel42.54K1.44%$1.77M
Redmond asset management125.33K1.33%$5.23M
Copeland capital management1.42M1.32%$59.25M
Raffles associates lp24.42K0.98%$1.05M
Bridge city capital59.44K0.73%$2.48M
Granite investment partners280.88K0.69%$11.71M
Isthmus partners121.92K0.56%$5.08M

Top Buyers

HolderShares% AssetsChange
Fundsmith llp1.78M0.39%824.95K
Arrowstreet capital, limited partnership861.14K0.02%749.07K
First trust advisors lp565.89K0.02%565.89K
Blackrock funding, inc. /de3.22M0.00%340.62K
Jacobs levy equity management325.07K0.07%325.07K

Top Sellers

HolderShares% AssetsChange
T. rowe price investment management---1.85M
Fil---1.16M
Alyeska investment group---757.22K
Vaughan nelson investment management---606.44K
Emerald advisers---466.17K

New Positions

HolderShares% AssetsChangeValue
Jacobs levy equity management325.07K0.07%325.07K$16.89M
Adage capital partners gp220.00K0.01%220.00K$9.45M
Crawford investment counsel103.75K0.07%103.75K$4.46M
4d advisors100.00K2.29%100.00K$4.29M
First national bank of omaha82.55K0.22%82.55K$3.55M

Sold Out

HolderChange
National bank of canada /fi/-2.00
Nelson, van denburg & campbell wealth management group-6.00
Harbor investment advisory-6.00
Caitong asset management-9.00
Cva family office-11.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Dec 31, 2025187-23.67%20,183,441-36.58%560.74%83-27.83%70-25.53%
Sep 30, 20252354.91%31,104,833-3.58%851.07%108-14.29%9235.29%
Jun 30, 2025224-2.18%32,261,2922.24%891.17%126-2.33%68-5.56%
Mar 31, 20259-96.46%2,239,126-93.36%60.07%6-95.80%1-98.72%
Dec 31, 2024251-4.92%33,694,3290.78%921.12%139-9.15%795.33%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
Smithson Investment Trust Ord1.78M4.99%-
Fidelity Small Cap America Sr B1.16M3.17%-212.96K
Vanguard US Total Market Shares ETF1.10M3.01%260.00
Vanguard Total Stock Mkt Idx Inv1.07M3.00%-
Vanguard Information Technology ETF879.97K2.47%3.54K
iShares Russell 2000 ETF837.04K2.35%211.85K
Janus Henderson US Small Cap Growth MA653.05K1.78%652.96K
Janus Henderson Venture D614.62K1.72%-8.55K
Janus Henderson US Small Cap Growth614.62K1.72%-21.49K
T. Rowe Price US Small-Cap Core Equity634.64K1.72%-120.05K

Recent Insider Transactions


DateNameRoleActivityValue
Mar 03, 2026SOLOWAY RICHARD CEO, Chairman of Board, SecySell$2.39M
Mar 02, 2026SOLOWAY RICHARD CEO, Chairman of Board, SecySell$5.83M
Feb 05, 2026SOLOWAY RICHARD CEO, Chairman of Board, SecySell$6.41M
Nov 17, 2025Spinelli Stephen M Senior Vice president of SalesSell$764.75K
Sep 12, 2024BEEBER PAUL STEPHEN-Sell$26.28K

Insider Transactions Trends


DateBuySell
2026 Q1-3
2025 Q4-1
2025 Q3--
2024 Q3-1
2024 Q2-5

NSSC Ownership FAQ


Who Owns Napco Security?

Napco Security shareholders are primarily institutional investors at 56.59%, followed by 5.26% insiders and 38.15% retail investors. The average institutional ownership in Napco Security's industry, Security & Protection Service Stocks, is 30.31%, which Napco Security exceeds.

Who owns the most shares of Napco Security?

Napco Security’s largest shareholders are Blackrock funding, inc. /de (3.22M shares, 9.04%), Vanguard group (2.88M shares, 8.08%), and Blackrock (2.71M shares, 7.36%). Together, they hold 24.48% of Napco Security’s total shares outstanding.

Does Blackrock own Napco Security?

Yes, BlackRock owns 7.36% of Napco Security, totaling 2.71M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 140.82M$. In the last quarter, BlackRock increased its holdings by 265.84K shares, a 10.87% change.

Who is Napco Security’s biggest shareholder by percentage of total assets invested?

Doma perpetual capital management is Napco Security’s biggest shareholder by percentage of total assets invested, with 16.81% of its assets in 1.17M Napco Security shares, valued at 50.05M$.

Who is the top mutual fund holder of Napco Security shares?

Smithson Investment Trust Ord is the top mutual fund holder of Napco Security shares, with 4.99% of its total shares outstanding invested in 1.78M Napco Security shares.

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