Joint Protein Central (OSRH) files Schedule 13G reporting 7.9% ownership

Rhea-AI Filing Summary

joint protein central, inc. filed a Schedule 13G reporting beneficial ownership of 2,603,759 shares of OSR Holdings, Inc. common stock, representing 7.9% of the class. The filing shows sole voting power over 2,603,759 shares and no dispositive power. The form is signed by Senyon Choe, Director on 04/22/2026.

Insights

Corporate Governance Analyst

Non‑control passive holding disclosed: 7.9% stake with sole voting power reported.

The Schedule 13G lists 2,603,759 shares and 7.9% ownership, with sole voting power but zero dispositive power recorded. This pattern is consistent with an investor reporting under beneficial ownership rules rather than an active trading disclosure.

Key items to watch in subsequent filings include any changes in voting or dispositive power and whether the holder amends to a Schedule 13D if their intentions change.

Key Figures

Shares beneficially owned: 2,603,759 shares Percent of class: 7.9% Sole voting power: 2,603,759 shares +3 more

6 metrics

Shares beneficially owned 2,603,759 shares Schedule 13G reported by joint protein central, inc.

Percent of class 7.9% Percent of OSR Holdings common stock reported in Schedule 13G

Sole voting power 2,603,759 shares Number of shares with sole power to vote as stated in Item 4

Sole dispositive power 0.00 shares Number of shares with sole power to dispose as stated in Item 4

CUSIP 68840D102 CUSIP for OSR Holdings common stock as listed on the form

Signature date 04/22/2026 Date the Schedule 13G was signed by the reporting person

Key Terms

Schedule 13G, Beneficially owned, Sole dispositive power, Sole voting power

4 terms

Schedule 13G regulatory

"filed a Schedule 13G reporting beneficial ownership of 2,603,759 shares"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

Beneficially owned financial

"Amount beneficially owned: 2,603,759 shares of common stock"

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 dispositive power regulatory

"Sole power to dispose or to direct the disposition of: 0"

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.

Sole voting power regulatory

"Sole power to vote or to direct the vote: 2,603,759"

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.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

OSR Holdings, Inc.

(Name of Issuer)

common stock

(Title of Class of Securities)

68840D102

(CUSIP Number)

04/16/2026

(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): 68840D102

1

Names of Reporting Persons

joint protein central inc.

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

KOREA, REPUBLIC OF

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 2,603,759.00
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

2,603,759.00

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)

7.9 %

12

Type of Reporting Person (See Instructions)

CO

SCHEDULE 13G

Item 1.
(a)	Name of issuer: OSR Holdings, Inc.
(b)	Address of issuer's principal executive offices: 10900 NE 4TH STREET, SUITE 2300, BELLEVUE, WASHINGTON, 98004
Item 2.
(a)	Name of person filing: joint protein central, inc.
(b)	Address or principal business office or, if none, residence: 3 jeongung-ro, namsa-eup, cheoin-gu, yongin, Gyounggi-do
(c)	Citizenship: Korea
(d)	Title of class of securities: common stock
(e)	CUSIP Number(s): 68840D102
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: 2,603,759 shares of common stock
(b)	Percent of class: 7.9%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 2,603,759
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 0
	(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.
	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.

joint protein central inc.

Signature:	senyon choe
Name/Title:	director
Date:	04/22/2026

FAQ

What stake does joint protein central, inc. report in OSR Holdings (OSRH)?

The filing reports 2,603,759 shares, equal to 7.9% of OSR Holdings common stock. The Schedule 13G shows sole voting power for that share amount and zero dispositive power.

When was the Schedule 13G for OSRH signed?

The Schedule 13G is signed by Senyon Choe, Director on 04/22/2026. The filing identifies the reporting person as joint protein central, inc. with a Korea citizenship.

Does joint protein central, inc. have authority to sell OSRH shares?

The form lists 0 shares for sole and shared dispositive power, indicating no recorded authority to dispose of the shares in this filing. The filing records dispositive power as zero.

What class of security is reported in the OSRH Schedule 13G?

The filing reports ownership of common stock of OSR Holdings, Inc. and lists the CUSIP 68840D102 associated with that class of securities.

Where is joint protein central, inc. organized?

The Schedule 13G identifies the reporting person’s citizenship/place of organization as Korea, Republic and lists a principal business address in Yongin, Gyounggi-do.