Dimensional Fund Advisors cuts FONAR Corp (FONR) stake to 0%

Rhea-AI Filing Summary

Dimensional Fund Advisors LP, a Delaware limited partnership and registered investment adviser, reports that it beneficially owns 0 shares of FONAR Corp common stock. As of June 30, 2026, this represents 0.0% of the class, with no sole or shared voting or dispositive power.

The filing explains that any FONAR securities are owned by underlying funds and accounts for which Dimensional or its subsidiaries act as adviser or sub-adviser, and Dimensional disclaims beneficial ownership of those securities except for purposes of Section 13(d) of the Exchange Act.

Key Figures

Shares beneficially owned: 0 shares Percent of class: 0.0% Sole voting power: 0 shares +2 more

5 metrics

Shares beneficially owned 0 shares Amount beneficially owned by Dimensional Fund Advisors

Percent of class 0.0% Percentage of FONAR Corp common stock class owned

Sole voting power 0 shares Shares over which Dimensional has sole voting power

Shared voting power 0 shares Shares over which Dimensional has shared voting power

Reporting date 06/30/2026 Date associated with reported ownership figures

Key Terms

beneficial owner, disclaims beneficial ownership, Investment Company Act of 1940, separate accounts, +1 more

5 terms

beneficial owner regulatory

"may be deemed to be the beneficial owner of the shares of the Issuer"

A beneficial owner is the person who ultimately owns or controls a financial asset or property, even if their name isn't directly on official documents. Think of it like someone who secretly holds the keys to a safe deposit box—others may appear to have access, but the true owner is the one who benefits from what's inside. Identifying beneficial owners helps ensure transparency and prevent illegal activities like money laundering or fraud.

disclaims beneficial ownership regulatory

"Dimensional disclaims beneficial ownership of such securities"

Investment Company Act of 1940 regulatory

"four investment companies registered under the Investment Company Act of 1940"

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.

separate accounts financial

"commingled funds, group trusts and separate accounts"

Separate accounts are pools of investments that a financial firm keeps apart from its main assets to manage for a specific client, insurance product, or institutional mandate. They matter to investors because the account’s gains, losses and risks apply only to the clients linked to it rather than the firm overall, so returns and protections can differ from pooled or company‑backed assets—think of it like a private toolbox reserved for a single job instead of shared with everyone.

Section 13(d) regulatory

"for any other purposes than Section 13(d) of the Securities Exchange Act of 1934"

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

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Available on EDGAR 07/14/2026 - 01:29 PM Accepted by SEC EDGAR 07/14/2026 - 01:27 PM Learn about SEC filing dates

FAQ

What FONAR Corp (FONR) ownership does Dimensional Fund Advisors report in this filing?

Dimensional Fund Advisors reports beneficial ownership of 0 FONAR common shares, representing 0.0% of the class. It also reports no sole or shared voting or dispositive power over FONAR Corp common stock.

As of what date does Dimensional’s reported FONAR (FONR) ownership apply?

The reported FONAR ownership figures apply as of June 30, 2026. On that date Dimensional Fund Advisors reported 0 shares beneficially owned and 0.0% of the outstanding FONAR Corp common stock.

Does Dimensional Fund Advisors retain any voting power over FONAR (FONR) shares?

No. Dimensional Fund Advisors reports 0 shares with sole voting power and 0 shares with shared voting power. It likewise reports 0 shares with sole or shared dispositive power over FONAR Corp common stock.

Why does Dimensional Fund Advisors disclaim beneficial ownership of FONAR (FONR) shares?

Dimensional states that any FONAR securities are owned by the Funds it advises or manages, not by Dimensional itself. It therefore disclaims beneficial ownership of those securities, except for Section 13(d) reporting purposes under the Exchange Act.

What does Item 5 mean for Dimensional’s FONAR (FONR) stake?

Item 5 indicates that Dimensional’s reported interest is 5 percent or less of the class. In this amendment, Dimensional reports 0 shares and 0.0% of FONAR’s common stock outstanding, confirming it is no longer a 5% holder.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 6)

FONAR Corp

(Name of Issuer)

Common Stock

(Title of Class of Securities)

344437405

(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): 344437405

1

Names of Reporting Persons

Dimensional Fund Advisors LP

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

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

0.00

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)

0.0 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: FONAR Corp
(b)	Address of issuer's principal executive offices: 110 Marcus Drive, Melville, NY 11747
Item 2.
(a)	Name of person filing: Dimensional Fund Advisors LP
(b)	Address or principal business office or, if none, residence: 6300 Bee Cave Road, Building One, Austin, TX 78746
(c)	Citizenship: Delaware Limited Partnership
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 344437405
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: 0 ** see Note 1 ** ** Note 1 ** Dimensional Fund Advisors LP, an investment adviser registered under Section 203 of the Investment Advisors Act of 1940, furnishes investment advice to four investment companies registered under the Investment Company Act of 1940, and serves as investment manager or sub-adviser to certain other commingled funds, group trusts and separate accounts (such investment companies, trusts and accounts, collectively referred to as the "Funds"). In certain cases, subsidiaries of Dimensional Fund Advisors LP may act as an adviser or sub-adviser to certain Funds. In its role as investment advisor, sub-adviser and/or manager, Dimensional Fund Advisors LP or its subsidiaries (collectively, "Dimensional") may possess voting and/or investment power over the securities of the Issuer that are owned by the Funds, and may be deemed to be the beneficial owner of the shares of the Issuer held by the Funds. However, all securities reported in this schedule are owned by the Funds. Dimensional disclaims beneficial ownership of such securities. In addition, the filing of this Schedule 13G shall not be construed as an admission that the reporting person or any of its affiliates is the beneficial owner of any securities covered by this Schedule 13G for any other purposes than Section 13(d) of the Securities Exchange Act of 1934.
(b)	Percent of class: 0.0 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0** see Note 1 **
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 0** see Note 1 **
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
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. The Funds described in Note 1 above have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of the securities held in their respective accounts. To the knowledge of Dimensional, the interest of any one such Fund does not exceed 5% of the class of securities. Dimensional Fund Advisors LP disclaims beneficial ownership of all such securities.
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.

Dimensional Fund Advisors LP

Signature:	Selwyn Notelovitz
Name/Title:	Global Chief Compliance Officer
Date:	07/14/2026