Atomico reports 2.88% stake in Hinge Health

Hinge Health, Inc. Schedule 13G/A amendment reports that Atomico Advisors IV, Ltd., together with affiliated Atomico IV entities, beneficially owns 2,300,000 shares of Class A Common Stock, representing 2.88% of the company’s combined capital stock.

Rhea-AI Filing Summary

Hinge Health, Inc. Schedule 13G/A amendment reports that Atomico Advisors IV, Ltd., together with affiliated Atomico IV entities, beneficially owns 2,300,000 shares of Class A Common Stock, representing 2.88% of the company’s combined capital stock. The filing states the 79,961,966 total shares outstanding as of April 30, 2026 and discloses that portions of the holdings are subject to share collar contracts dated December 8, 2025.

Insights

Institutional Ownership Analyst

Atomico group reports a passive 2.88% stake in Hinge Health.

The amendment lists 2,300,000 shares held with shared voting and dispositive power across Atomico Advisors IV, Ltd., Atomico IV, L.P., and Atomico IV (Guernsey), L.P. Holdings include positions subject to a share collar dated December 8, 2025.

Ownership is presented relative to 79,961,966 total shares outstanding as of April 30, 2026. The filing characterizes the stake as passive and below the 5% threshold; further activity would depend on subsequent amendments or filings.

Key Figures

Reported shares beneficially owned: 2,300,000 shares Percent of combined capital stock: 2.88% Shares outstanding referenced: 79,961,966 shares

3 metrics

Reported shares beneficially owned 2,300,000 shares Aggregate holdings across Atomico reporting persons

Percent of combined capital stock 2.88% Based on 79,961,966 total shares outstanding as of April 30, 2026

Shares outstanding referenced 79,961,966 shares Total Class A, Class B, and Series E Preferred outstanding as of April 30, 2026

Key Terms

share collar, beneficially owned, Schedule 13G/A

3 terms

share collar financial

"subject to a share collar contract dated December 8, 2025"

beneficially owned regulatory

"The number of shares beneficially owned consists of (i) 1,876,570 shares"

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.

Schedule 13G/A regulatory

"This Statement on has been filed on behalf of the following persons"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

FAQ

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

What stake does Atomico hold in Hinge Health (HNGE)?

Atomico beneficially owns 2,300,000 shares, representing 2.88% of combined capital stock. The percentage uses a total of 79,961,966 shares outstanding as of April 30, 2026, per the filing's disclosure.

Are Atomico’s Hinge Health shares restricted or subject to agreements?

Yes. Portions of the holdings are subject to share collar contracts dated December 8, 2025. The filing states specific share blocks held by Atomico entities are governed by those collar agreements.

Which Atomico entities filed the Schedule 13G/A for HNGE?

The filing was made on behalf of Atomico Advisors IV, Ltd., Atomico IV, L.P., and Atomico IV (Guernsey), L.P. with addresses listed for the Cayman and Guernsey entities.

Does the filing indicate active control or voting power by Atomico?

The filing reports 0 sole voting power and 2,300,000 shared voting power, indicating shared voting and dispositive authority rather than sole control over these shares.

What date anchors are used for ownership and outstanding share counts?

Ownership percentages are tied to 79,961,966 total shares outstanding as of April 30, 2026, and the Schedule 13G/A amendment is signed on June 8, 2026 by a reporting representative.

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

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Accepted by SEC EDGAR 06/08/2026 - 04:02 PM EDT Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 2)

Hinge Health, Inc.

(Name of Issuer)

Class A Common Stock, par value $0.00001 per share

(Title of Class of Securities)

433313103

(CUSIP Number)

04/17/2026

(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): 433313103

1

Names of Reporting Persons

Atomico Advisors IV, Ltd.

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

CAYMAN ISLANDS

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 2,300,000.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 2,300,000.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,300,000.00

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)

2.88 %

12

Type of Reporting Person (See Instructions)

PN

Comment for Type of Reporting Person: The number of shares beneficially owned consists of (i) 1,876,570 shares of Class A Common Stock held by Atomico IV L.P., which are subject to a share collar contract dated December 8, 2025, and (ii) 423,430 shares of Class A Common Stock held by Atomico IV (Guernsey), L.P., which are subject to a share collar contract dated December 8, 2025. Atomico Advisors IV, Ltd. is the general partner of Atomico IV L.P. and Atomico IV (Guernsey), L.P. Percentage ownership is based on 79,961,966 total shares of Class A Common Stock, Class B Common Stock, and Series E Preferred Stock outstanding as of April 30, 2026, as reported in the Issuer's Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission (the "SEC") on May 7, 2026.

SCHEDULE 13G

CUSIP Number(s): 433313103

1

Names of Reporting Persons

Atomico IV, L.P.

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

CAYMAN ISLANDS

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 2,300,000.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 2,300,000.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,300,000.00

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)

2.88 %

12

Type of Reporting Person (See Instructions)

PN

Comment for Type of Reporting Person: See comments on the cover page by Atomico Advisors IV, Ltd.

SCHEDULE 13G

CUSIP Number(s): 433313103

1

Names of Reporting Persons

Atomico IV (Guernsey), L.P.

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

GUERNSEY

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 2,300,000.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 2,300,000.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,300,000.00

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)

2.88 %

12

Type of Reporting Person (See Instructions)

PN

Comment for Type of Reporting Person: See comments on the cover page by Atomico Advisors IV, Ltd.

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, California 94105
Item 2.
(a)	Name of person filing: This Statement on Schedule 13G has been filed on behalf of the following persons (each, a "Reporting Person" and collectively, the "Reporting Persons"): 1. Atomico Advisors IV, Ltd. 2. Atomico IV, L.P. 3. Atomico IV (Guernsey), L.P.
(b)	Address or principal business office or, if none, residence: The address for each of Atomico Advisors IV, Ltd. and Atomico IV, L.P. is One Capital Place, Grand Cayman, Cayman Islands KY1-1103. The address for Atomico IV (Guernsey), L.P. is P.O. Box 286, Floor 2 Trafalgar Court, Les Banques, St. Peter Port, Guernsey GY1 4LY.
(c)	Citizenship: See Row 4 of cover page for each Reporting Person.
(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: See Row 9 of cover page for each Reporting Person.
(b)	Percent of class: See Row 11 of cover page for each Reporting Person.
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: See Row 5 of cover page for each Reporting Person.
	(ii) Shared power to vote or to direct the vote: See Row 6 of cover page for each Reporting Person.
	(iii) Sole power to dispose or to direct the disposition of: See Row 7 of cover page for each Reporting Person.
	(iv) Shared power to dispose or to direct the disposition of: See Row 8 of cover page for each Reporting Person.
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.
	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.

Atomico Advisors IV, Ltd.

Signature:	/s/ Nicole Ramroop
Name/Title:	Director
Date:	06/08/2026

Atomico IV, L.P.

Signature:	/s/ Nicole Ramroop
Name/Title:	Director of Atomico Advisors IV, Ltd., its general partner
Date:	06/08/2026

Atomico IV (Guernsey), L.P.

Signature:	/s/ Nicole Ramroop
Name/Title:	Director of Atomico Advisors IV, Ltd., its general partner
Date:	06/08/2026

Exhibit Information

Exhibit 99.1 - Joint Filing Agreement (incorporated by reference to Exhibit 99.1 to the Schedule 13G filed by the Reporting Person with the SEC on July 30, 2025).