Jane Street reports 4.3% stake in GeoVax Labs

GeoVax Labs, Inc. is the subject of an amended Schedule 13G filing by Jane Street Group, LLC and its subsidiaries Jane Street Capital, LLC and Jane Street Global Trading, LLC.

Rhea-AI Filing Summary

GeoVax Labs, Inc. is the subject of an amended Schedule 13G filing by Jane Street Group, LLC and its subsidiaries Jane Street Capital, LLC and Jane Street Global Trading, LLC. The group reports beneficial ownership of 315,275 shares of GeoVax common stock, representing 4.3% of the class as of June 30, 2026. All reported GeoVax shares are held with shared voting and dispositive power; none are held with sole voting or dispositive authority. Subsidiaries Jane Street Capital, LLC and Jane Street Global Trading, LLC report shared voting and dispositive power over 161,270 and 154,005 shares, respectively. The filing indicates ownership of 5 percent or less of GeoVax’s outstanding common stock.

Key Figures

Beneficial ownership: 315,275 shares Percent of class: 4.3% Shared voting power: 315,275 shares +3 more

6 metrics

Beneficial ownership 315,275 shares Shares of GeoVax common stock beneficially owned by the Jane Street group

Percent of class 4.3% Percentage of GeoVax common stock class beneficially owned

Shared voting power 315,275 shares GeoVax shares over which Jane Street entities share voting power

Jane Street Capital shared power 161,270 shares GeoVax shares with shared voting and dispositive power at Jane Street Capital, LLC

Jane Street Global Trading shared power 154,005 shares GeoVax shares with shared voting and dispositive power at Jane Street Global Trading, LLC

As-of date 06/30/2026 Date tied to the reported ownership figures

Key Terms

beneficially owned, shared voting power, shared dispositive power, parent holding company, +1 more

5 terms

beneficially owned financial

"Item 4. | Ownership (a) | Amount beneficially owned: 315,275.00"

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 315,275.00"

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 315,275.00"

parent holding company financial

"If a parent holding company has filed this schedule, pursuant to (ii)(G)"

percent of class financial

"Percent of class: 4.3%"

Percent of class is the portion of a specific category of securities—such as a company’s common shares, preferred shares, or a bond series—that takes part in or approves a corporate action (vote, consent, tender, etc.). Investors watch this number because it reveals how much support or opposition exists within that particular shareholder group; like counting how many members of a club back a proposal, it can determine whether a plan passes or how influence is distributed.

FAQ

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

What percentage of GeoVax Labs, Inc. (GOVX) does Jane Street report owning?

Jane Street Group, LLC reports beneficial ownership of 4.3% of GeoVax’s common stock. This corresponds to 315,275 shares with shared voting and shared dispositive power over the entire reported position.

How many GeoVax (GOVX) shares are beneficially owned by the Jane Street group?

The Jane Street group reports beneficial ownership of 315,275 GeoVax common shares. All of these shares are held with shared voting and shared dispositive power, and none are held with sole authority by the reporting entities.

What voting and dispositive powers does Jane Street have over its GeoVax (GOVX) shares?

Jane Street reports 0 shares with sole voting or dispositive power and 315,275 shares with shared voting and shared dispositive power. This means decisions over these GeoVax shares are exercised jointly rather than individually.

How are GeoVax (GOVX) shares allocated among Jane Street subsidiaries?

Jane Street Capital, LLC reports 161,270 shares with shared voting and dispositive power, and Jane Street Global Trading, LLC reports 154,005 shares with shared voting and dispositive power. Together, these positions total 315,275 shares of GeoVax common stock.

Does Jane Street hold more than 5% of GeoVax Labs, Inc. (GOVX)?

No. The filing states ownership of 5 percent or less of GeoVax’s common stock. Specifically, Jane Street reports beneficial ownership of 4.3% of the class, based on 315,275 shares held with shared powers.

What is the CUSIP and class of securities referenced for GeoVax (GOVX)?

The securities are GeoVax Labs, Inc. Common Stock, $0.001 par value, identified by CUSIP 373678705. Jane Street’s Schedule 13G/A relates specifically to this class of GeoVax equity securities.

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

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Accepted by SEC EDGAR 08/10/2026 - 04:39 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. 1)

GeoVax Labs, Inc.

(Name of Issuer)

Common Stock $0.001 par value

(Title of Class of Securities)

373678705

(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): 373678705

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 315,275.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 315,275.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

315,275.00

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)

4.3 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

CUSIP Number(s): 373678705

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 161,270.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 161,270.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

161,270.00

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)

2.2 %

12

Type of Reporting Person (See Instructions)

BD

SCHEDULE 13G

CUSIP Number(s): 373678705

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 154,005.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 154,005.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

154,005.00

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)

2.1 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

Item 1.
(a)	Name of issuer: GeoVax Labs, Inc.
(b)	Address of issuer's principal executive offices: 1955 LAKE PARK DRIVE, 1955 LAKE PARK DRIVE, SMYRNA, GEORGIA, 30080.
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 $0.001 par value
(e)	CUSIP No.: 373678705
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: 315,275.00
(b)	Percent of class: 4.3%
(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: 315,275.00
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 315,275.00
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. 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