Jane Street reports 1.7% stake in Co-Diagnostics

Co-Diagnostics, Inc. has an updated ownership disclosure showing that entities affiliated with Jane Street hold a relatively small position in its common stock.

Rhea-AI Filing Summary

Co-Diagnostics, Inc. has an updated ownership disclosure showing that entities affiliated with Jane Street hold a relatively small position in its common stock. Jane Street Group, LLC, together with subsidiaries Jane Street Capital, LLC and Jane Street Global Trading, LLC, report beneficial ownership of 89,240 shares of Co-Diagnostics common stock, representing 1.7% of the class. All reported shares are held with shared voting and dispositive power and no sole voting or dispositive power. The filing also confirms that the reporting group now owns 5 percent or less of the outstanding common stock.

Key Figures

Beneficial ownership: 89,240 shares Percent of class: 1.7% Shared voting power: 89,240 shares +3 more

6 metrics

Beneficial ownership 89,240 shares Shares of Co-Diagnostics common stock beneficially owned by Jane Street group

Percent of class 1.7% Percentage of Co-Diagnostics common stock class beneficially owned

Shared voting power 89,240 shares Number of shares over which the group has shared power to vote

Shared dispositive power 89,240 shares Number of shares over which the group has shared power to dispose

Jane Street Capital shared power 30,543 shares Shares with shared voting and dispositive power at Jane Street Capital, LLC

Jane Street Global Trading shared power 58,697 shares Shares with shared voting and dispositive power at Jane Street Global Trading, LLC

Key Terms

beneficially owned, shared voting power, shared dispositive power, parent holding company

4 terms

beneficially owned financial

"Amount beneficially owned: 89,240.00"

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.

shared voting power financial

"Shared Voting Power 89,240.00"

Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.

shared dispositive power financial

"Shared Dispositive Power 89,240.00"

parent holding company financial

"If a parent holding company has filed this schedule"

FAQ

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

What ownership stake in Co-Diagnostics (CODX) does Jane Street report in this Schedule 13G/A?

Jane Street affiliated entities report 89,240 shares of Co-Diagnostics common stock, representing 1.7% of the outstanding class. This stake is disclosed as beneficial ownership with shared voting and dispositive power across the reporting entities.

Which Jane Street entities are reporting ownership of Co-Diagnostics (CODX)?

The reporting persons are Jane Street Group, LLC, Jane Street Capital, LLC, and Jane Street Global Trading, LLC. Jane Street Group is the parent holding company, and the two subsidiaries are identified as the entities that acquired the Co-Diagnostics securities.

How much voting power does Jane Street have over Co-Diagnostics (CODX) shares?

The group reports 0 shares with sole voting power and 89,240 shares with shared voting power. This means all reported Co-Diagnostics shares are subject to joint voting authority among the Jane Street entities rather than controlled by any one of them alone.

Does Jane Street own more than 5% of Co-Diagnostics (CODX) common stock?

No. The Schedule 13G/A states ownership of 5 percent or less of Co-Diagnostics common stock, specifically 1.7% of the class. This confirms Jane Street’s position is below the 5% threshold for larger beneficial owners.

What roles do Jane Street Capital, LLC and Jane Street Global Trading, LLC play in the Co-Diagnostics (CODX) position?

Jane Street Capital, LLC is listed with 30,543 shares of shared voting and dispositive power, and Jane Street Global Trading, LLC with 58,697 shares. Together, these subsidiaries account for the 89,240 shares beneficially owned in Co-Diagnostics.

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

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Available on EDGAR 08/10/2026 - 04:34 PM Accepted by SEC EDGAR 08/10/2026 - 04:33 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

Co-Diagnostics, Inc.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

189763204

(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): 189763204

1

Names of Reporting Persons

JANE STREET GROUP, LLC

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

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 89,240.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 89,240.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

89,240.00

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)

1.7 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

CUSIP Number(s): 189763204

1

Names of Reporting Persons

Jane Street Capital, LLC

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

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 30,543.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 30,543.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

30,543.00

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)

0.6 %

12

Type of Reporting Person (See Instructions)

BD

SCHEDULE 13G

CUSIP Number(s): 189763204

1

Names of Reporting Persons

Jane Street Global Trading, LLC

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

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 58,697.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 58,697.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

58,697.00

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)

1.1 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Co-Diagnostics, Inc.
(b)	Address of issuer's principal executive offices: 2401 S FOOTHILL DRIVE, 2401 S FOOTHILL DRIVE, SALT LAKE CITY, UTAH, 84109.
Item 2.
(a)	Name of person filing: Jane Street Group, LLC; Jane Street Capital, LLC; Jane Street Global Trading, LLC;
(b)	Address or principal business office or, if none, residence: Jane Street Group, LLC 250 Vesey Street 3rd Floor New York, NY 10281 Jane Street Capital, LLC 250 Vesey Street 3rd Floor New York, NY 10281 Jane Street Global Trading, LLC 250 Vesey Street 3rd Floor New York, NY 10281
(c)	Citizenship: See Item 4 of Cover Page
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 189763204
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: 89,240.00
(b)	Percent of class: 1.7%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0
	(ii) Shared power to vote or to direct the vote: 89,240.00
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 89,240.00
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.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. Subsidiary Jane Street Capital, LLC Jane Street Global Trading, LLC
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 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.

JANE STREET GROUP, LLC

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	08/10/2026

Jane Street Capital, LLC

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	08/10/2026

Jane Street Global Trading, LLC

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	08/10/2026