Gabriel Mecklenburg files Schedule 13G disclosing 4.03M HNGE shares (13%)

Rhea-AI Filing Summary

Gabriel M.I. Mecklenburg reported beneficial ownership of 4,025,963 shares of Hinge Health, Inc. Class A common stock, equal to 13.0% of the Class A shares outstanding as of June 30, 2025. This ownership figure is based on 26,905,214 Class A shares outstanding and assumes a one-to-one conversion of Class B into Class A common stock. The reported holdings break down into 1,682,961 Class A equivalents underlying Class B shares held of record by Mr. Mecklenburg, 1,475,711 Class B shares held by family trusts over which he exercises voting power, and 867,291 Class B-share equivalents underlying stock options exercisable within 60 days of June 30, 2025. He reports sole voting power over all 4,025,963 shares and sole dispositive power over 2,550,252 shares.

Positive

• Material stake disclosed: 4,025,963 shares, representing 13.0% of Class A common stock.
• Full voting authority reported: Sole voting power over all 4,025,963 shares.
• Clear breakdown of holdings: includes 1,682,961 Class A equivalents, 1,475,711 Class B in family trusts, and 867,291 option-based Class B equivalents exercisable within 60 days.

Negative

• Sole dispositive power is lower: only 2,550,252 shares are reported as solely dispositive, less than the voting total.
• Filing does not indicate which Rule 13d-1 checkbox was selected: the form header lists options but does not show a checked rule selection in the provided text.

Insights

Financial Analyst

TL;DR: A material 13.0% stake is disclosed with full voting control reported but materially lower dispositive power.

The filing shows a significant concentrated position: 4,025,963 shares representing 13.0% of Class A on a 26,905,214-share base. The composition—recorded Class B holdings, family trusts, and in-the-money options exercisable within 60 days—explains why voting power (4,025,963) exceeds sole dispositive power (2,550,252). For investors, the gap between voting and dispositive power is notable because it indicates Mr. Mecklenburg can direct votes for a larger block than he can unilaterally sell. The statement assumes 1:1 conversion of Class B to Class A, which is relevant when assessing potential future dilution or voting dynamics.

Corporate Governance Expert

TL;DR: Concentrated voting authority via Class B and trust arrangements is evident; governance effects hinge on conversion and option exercise timing.

The report documents that family trusts and record Class B holdings contribute materially to Mr. Mecklenburg's voting control. The 867,291 options exercisable within 60 days are a near-term potential source of additional Class A-equivalent shares. The filing does not indicate a group or shared ownership, and several items (e.g., Items 6-9) are marked not applicable. These facts point to a single principal holder with substantial voting influence, though the reduced sole dispositive power suggests limits on immediate share disposition.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Hinge Health, Inc.

(Name of Issuer)

Class A Common Stock, par value $0.00001 per share

(Title of Class of Securities)

433313103

(CUSIP Number)

06/30/2025

(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)

SCHEDULE 13G

CUSIP No. 433313103

1

Names of Reporting Persons

Gabriel M.I. Mecklenburg

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 4,025,963.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 2,550,252.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

4,025,963.00

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)

13.0 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Hinge Health, Inc.
(b)	Address of issuer's principal executive offices: 455 Market Street, Suite 700, San Francisco, CA 94105.
Item 2.
(a)	Name of person filing: This statement is filed on behalf of Gabriel M.I. Mecklenburg (the "Reporting Person").
(b)	Address or principal business office or, if none, residence: The principal business address of the Reporting Person is c/o Hinge Health, Inc., 455 Market Street, Suite 700, San Francisco, CA 94105.
(c)	Citizenship: The Reporting Person is a citizen of the United States.
(d)	Title of class of securities: Class A Common Stock, par value $0.00001 per share
(e)	CUSIP No.: 433313103
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: The information contained on the cover pages to this Schedule 13G is incorporated by reference into this Item 4. The ownership information presented herein represents beneficial ownership of Class A Common Stock as of June 30, 2025, based upon 26,905,214 shares of Class A Common Stock outstanding as of June 30, 2025, as provided by the Issuer. The information below assumes the conversion of the Class B common stock, par value $0.00001 per share ("Class B Common Stock") of the Issuer into shares of Class A Common Stock on a one-to-one basis. The Reporting Person is deemed to beneficially own 4,025,963 shares of Class A Common Stock, which includes: (i) 1,682,961 shares of Class A Common Stock underlying shares of Class B Common Stock held of record by the Reporting Person, (ii) 1,475,711 shares of Class B Common Stock held by family trusts over which the Reporting Person exercises voting power and (iii) 867,291 shares of Class B Common Stock underlying stock options held by the Reporting Person that are exercisable within 60 days of June 30, 2025.
(b)	Percent of class: 13.0 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 4,025,963
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 2,550,252
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
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:
	Not Applicable

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.

Gabriel M.I. Mecklenburg

Signature:	/s/ Gabriel M.I. Mecklenburg
Name/Title:	Gabriel M.I. Mecklenburg
Date:	08/13/2025

FAQ

How many Hinge Health (HNGE) Class A shares does Gabriel M.I. Mecklenburg beneficially own?

He reports beneficial ownership of 4,025,963 shares of Class A common stock.

What percent of Hinge Health Class A does Mr. Mecklenburg own?

The filing states he owns 13.0% of Class A common stock based on 26,905,214 shares outstanding as of June 30, 2025.

What components make up the 4,025,963 shares reported?

The total includes 1,682,961 Class A equivalents underlying Class B shares held of record by him, 1,475,711 Class B shares held by family trusts he controls, and 867,291 Class B-share equivalents underlying options exercisable within 60 days of June 30, 2025.

Does Mr. Mecklenburg have voting or dispositive power over these shares?

He reports sole voting power for all 4,025,963 shares and sole dispositive power for 2,550,252 shares.

When is the ownership information reported as of?

Ownership is reported as of June 30, 2025, with the Schedule 13G signed on August 13, 2025.

Does the filing indicate group ownership or acquisition on behalf of another person?

No. Items identifying groups or ownership on behalf of others (Items 6-9) are marked Not Applicable in the filing.