Vanguard reports 5.02% stake in Napco Security Technologies

Vanguard Capital Management and certain affiliates report beneficial ownership of Napco Security Technologies Inc common stock on a Schedule 13G. They report holding 1,794,370 shares, representing 5.02% of the outstanding common stock.

Rhea-AI Filing Summary

Vanguard Capital Management and certain affiliates report beneficial ownership of Napco Security Technologies Inc common stock on a Schedule 13G. They report holding 1,794,370 shares, representing 5.02% of the outstanding common stock.

Vanguard has sole voting power over 267,552 shares and sole dispositive power over 1,794,370 shares, with no shared voting or dispositive power. The filing explains that these shares include securities held by various Vanguard funds and managed accounts over which Vanguard entities exercise voting and/or investment discretion. No other single person’s interest in the reported securities exceeds 5%.

Key Figures

Beneficially owned shares: 1,794,370 shares Ownership percentage: 5.02% Sole voting power: 267,552 shares +4 more

7 metrics

Beneficially owned shares 1,794,370 shares Amount of Napco common stock reported as beneficially owned by Vanguard Capital Management

Ownership percentage 5.02% Percent of Napco Security Technologies Inc common stock class reported owned

Sole voting power 267,552 shares Number of shares over which Vanguard Capital Management has sole voting power

Shared voting power 0 shares Number of shares over which Vanguard Capital Management has shared voting power

Sole dispositive power 1,794,370 shares Number of shares over which Vanguard Capital Management has sole dispositive power

Shared dispositive power 0 shares Number of shares over which Vanguard Capital Management has shared dispositive power

Signature date 07/31/2026 Date the Schedule 13G was signed by Authorized Signatory

Key Terms

beneficially owned, sole voting power, sole dispositive power, shared dispositive power, +1 more

5 terms

beneficially owned financial

"this reflects the securities beneficially owned, or deemed to be beneficially owned, by Vanguard"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

sole voting power financial

"Sole Voting Power 267,552.00"

Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.

sole dispositive power financial

"Sole Dispositive Power 1,794,370.00"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

shared dispositive power financial

"Shared Dispositive Power 0.00"

Investment Company Act of 1940 regulatory

"investment companies registered under the Investment Company Act of 1940 and other managed accounts"

A U.S. federal law that sets the rulebook for pooled investment vehicles such as mutual funds, exchange-traded funds and similar money managers, requiring them to register with regulators, disclose holdings and fees, limit conflicts of interest, and follow governance standards. It matters to investors because these protections and transparency rules act like a referee and scoreboard, helping people compare funds, trust that managers follow fair practices, and spot hidden costs or risks.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What percentage of Napco Security Technologies Inc (NSSC) does Vanguard Capital Management report owning?

Vanguard Capital Management reports beneficial ownership of 5.02% of Napco Security Technologies Inc common stock. This percentage is based on 1,794,370 shares of NSSC common stock reported as beneficially owned on the Schedule 13G filing.

How many Napco Security Technologies Inc (NSSC) shares does Vanguard Capital Management beneficially own?

Vanguard Capital Management reports beneficial ownership of 1,794,370 NSSC common shares. This position includes securities held by Vanguard funds and managed accounts over which Vanguard and certain affiliates exercise dispositive and, in some cases, voting power.

What voting power does Vanguard Capital Management have over NSSC shares?

Vanguard Capital Management reports sole voting power over 267,552 NSSC shares and no shared voting power. It also reports sole dispositive power over 1,794,370 shares, with no shared dispositive power over Napco Security Technologies Inc stock.

Which entities are included in Vanguard Capital Management’s NSSC Schedule 13G filing?

The filing states that securities are beneficially owned or deemed beneficially owned by Vanguard Capital Management LLC and affiliates, including Vanguard Asset Management Limited, Vanguard Fiduciary Trust Company, Vanguard Global Advisers, LLC, and Vanguard Investments Australia Ltd.

Does any other person hold more than 5% interest through Vanguard’s NSSC position?

The filing states that while Vanguard funds and managed accounts have rights to dividends or sale proceeds, no one other person’s interest in the securities exceeds 5%. Thus, the >5% beneficial ownership is attributed collectively to Vanguard-managed entities.

Is Vanguard’s ownership in NSSC reported on a Schedule 13G or 13D?

Vanguard Capital Management reports its Napco Security Technologies Inc stake on a Schedule 13G. This form is typically used for investors who exceed 5% ownership without pursuing control and who qualify for passive or institutional filer status.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 07/31/2026 - 10:44 AM Accepted by SEC EDGAR 07/31/2026 - 10:43 AM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Napco Security Technologies Inc

(Name of Issuer)

Common Stock

(Title of Class of Securities)

630402105

(CUSIP Number)

06/30/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 630402105

1

Names of Reporting Persons

Vanguard Capital Management

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

PENNSYLVANIA

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 267,552.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 1,794,370.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,794,370.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.02 %

12

Type of Reporting Person (See Instructions)

IA

Comment for Type of Reporting Person: In accordance with SEC Release No. 34-39538 (January 12, 1998), this Schedule 13G reflects the securities beneficially owned, or deemed to be beneficially owned, by Vanguard Capital Management LLC and the following affiliates of Vanguard Capital Management LLC or business divisions of such affiliates: Vanguard Asset Management Limited, Vanguard Fiduciary Trust Company, Vanguard Global Advisers, LLC and Vanguard Investments Australia Ltd. This Schedule 13G includes securities held by Vanguard funds, or sleeves thereof, over which Vanguard Capital Management LLC exercises dispositive power, in addition to securities held by clients over which the affiliates or business divisions of such affiliates indicated above exercise dispositive and/or voting power. This Schedule 13G does not include securities, if any, beneficially owned by other subsidiaries or affiliates of Vanguard Capital Management LLC, or business divisions of such subsidiaries, whose ownership of securities is disaggregated from that of the reporting business unit in accordance with such release.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Napco Security Technologies Inc
(b)	Address of issuer's principal executive offices: 333 Bayview Avenue, Amityville, NY, 11701
Item 2.
(a)	Name of person filing: Vanguard Capital Management
(b)	Address or principal business office or, if none, residence: 100 Vanguard Blvd,, Malvern, PA, 19355
(c)	Citizenship: PA
(d)	Title of class of securities: Common Stock
(e)	CUSIP Number(s): 630402105
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 1794370
(b)	Percent of class: 5.02 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 267552
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 1794370
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. Vanguard Capital Management, including investment companies registered under the Investment Company Act of 1940 and other managed accounts, have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the securities reported herein.No one other person's interest in the securities reported herein is more than 5%.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Vanguard Capital Management

Signature:	My Trieu-Gatt
Name/Title:	Authorized Signatory, Head of Global Fund Administration
Date:	07/31/2026