[SCHEDULE 13G/A] Indaptus Therapeutics, Inc. Amended Passive Investment Disclosure

Rhea-AI Filing Summary

Indaptus Therapeutics, Inc. — Amendment No. 1 to a Schedule 13G/A filed by YA II PN, Ltd. states that the reporting group beneficially owns 0 shares of Common Stock, representing 0% of the class as of 12/31/2025. The filing lists affiliated entities (YA Global Investments II (U.S.), Yorkville Advisors Global, YAII GP entities, SC-Sigma, and Mark Angelo) and explains their relationships and potential attribution. The amendment is signed and dated 04/06/2026.

Key Figures

Beneficially owned shares: 0 shares Percent of class: 0% Ownership as-of date: 12/31/2025 +1 more

4 metrics

Beneficially owned shares 0 shares Amount reported as beneficially owned by YA II PN, Ltd.

Percent of class 0% Percent of Indaptus Common Stock as of 12/31/2025

Ownership as-of date 12/31/2025 Date tied to the reported ownership snapshot

Filing signature date 04/06/2026 Date signatures were provided on the amendment

Key Terms

Schedule 13G/A, Beneficial ownership, Dispositive power, Group filing / affiliates

4 terms

Schedule 13G/A regulatory

"Amendment No. 1 to a Schedule 13G/A filed by YA II PN, Ltd."

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.

Beneficial ownership financial

"Amount beneficially owned: 0; Percent of class: 0%"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

Dispositive power regulatory

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

Dispositive power is the authority to decide the final outcome of an asset, legal claim, contract, or corporate action — in effect the power to dispose of or resolve something. For investors it matters because whoever holds that authority can determine who gets paid, who controls an asset or vote, and how risks and returns are allocated; think of it like holding the key that lets you lock in the winner or loser in a deal.

Group filing / affiliates regulatory

"For purposes of this filing, each of the reporting persons is deemed an affiliate of each other reporting person."

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

Indaptus Therapeutics, Inc.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

45339J105

(CUSIP Number)

12/31/2025

(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)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 45339J105

1

Names of Reporting Persons

YA II PN, 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 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

0.00

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 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP Number(s): 45339J105

1

Names of Reporting Persons

YA Global Investments II (U.S.), LP

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 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

0.00

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 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP Number(s): 45339J105

1

Names of Reporting Persons

Yorkville Advisors Global, LP

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 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

0.00

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 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP Number(s): 45339J105

1

Names of Reporting Persons

Yorkville Advisors Global II, 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 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

0.00

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 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP Number(s): 45339J105

1

Names of Reporting Persons

YAII GP, LP

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 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

0.00

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 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP Number(s): 45339J105

1

Names of Reporting Persons

YAII GP II, 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 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

0.00

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 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP Number(s): 45339J105

1

Names of Reporting Persons

Mark Angelo

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 0.00
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

0.00

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 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP Number(s): 45339J105

1

Names of Reporting Persons

SC-Sigma Global Partners, LP

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 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

0.00

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 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Indaptus Therapeutics, Inc.
(b)	Address of issuer's principal executive offices: 3 Columbus Circle, 15th Floor New York, NY, 10019
Item 2.
(a)	Name of person filing: YA II PN, Ltd.
(b)	Address or principal business office or, if none, residence: 1012 Springfield Ave., Mountainside, NJ 07092
(c)	Citizenship: Cayman Islands
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.:
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: 0
(b)	Percent of class: 0 %
(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: 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.
	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.
	If a group has filed this schedule pursuant to §240.13d-1(b)(1)(ii)(J), so indicate under Item 3(j) and attach an exhibit stating the identity and Item 3 classification of each member of the group. If a group has filed this schedule pursuant to §240.13d-1(c) or §240.13d-1(d), attach an exhibit stating the identity of each member of the group. YA II is beneficially owned by YA Global Investments II (U.S.), LP (the "YA Feeder"). Yorkville Advisors Global, LP (the "YA Advisor") is the investment manager to YA II. Yorkville Advisors Global II, LLC (the "YA Advisor GP") is the general partner to the YA Advisor. YAII GP, LP (the "YA GP") is the general partner to the YA Feeder. YAII GP II, LLC (the "Yorkville GP") is the general partner to the YA GP. Mark Angelo makes the investment decisions on behalf of YA II. Accordingly, each of YA II, YA Feeder, the YA Advisor, the YA Advisor GP, the YA GP, the Yorkville GP and Mark Angelo may be deemed affiliates and therefore may be deemed to beneficially own the same number of Class A Shares. YAII GP, LP is the general partner of SC-Sigma Global Partners, LP ("SC-Sigma"), which is an investor in YA II. YAII GP II, LLC is the general partner of YAII GP, LP. The YA Advisor is the investment manager to SC-Sigma. Accordingly, SC-Sigma, the YA GP, the Yorkville GP, the YA Advisor, and Mark Angelo may be deemed affiliates and therefore may be deemed to beneficially own the same number of shares of Class A Shares. For purposes of this filing, each of the reporting persons is deemed an affiliate of each other reporting person.
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.

YA II PN, Ltd.

Signature:	/s/ David Gonzalez
Name/Title:	David Gonzalez, General Counsel
Date:	04/06/2026

YA Global Investments II (U.S.), LP

Signature:	/s/ David Gonzalez
Name/Title:	David Gonzalez, General Counsel
Date:	04/06/2026

Yorkville Advisors Global, LP

Signature:	/s/ David Gonzalez
Name/Title:	David Gonzalez, General Counsel
Date:	04/06/2026

Yorkville Advisors Global II, LLC

Signature:	/s/ David Gonzalez
Name/Title:	David Gonzalez, General Counsel
Date:	04/06/2026

YAII GP, LP

Signature:	/s/ David Gonzalez
Name/Title:	David Gonzalez, General Counsel
Date:	04/06/2026

YAII GP II, LLC

Signature:	/s/ David Gonzalez
Name/Title:	David Gonzalez, General Counsel
Date:	04/06/2026

Mark Angelo

Signature:	/s/ Mark Angelo
Name/Title:	Mark Angelo
Date:	04/06/2026

SC-Sigma Global Partners, LP

Signature:	/s/ David Gonzalez
Name/Title:	David Gonzalez, General Counsel
Date:	04/06/2026

FAQ

What does YA II PN, Ltd.'s Schedule 13G/A amendment say about INDP ownership?

The amendment states YA II PN, Ltd. beneficially owns 0 shares of Indaptus Common Stock, equal to 0% of the class as of 12/31/2025. It lists affiliated entities and explains why they are treated as a group.

Which affiliated entities are named in the 13G/A for Indaptus (INDP)?

The filing names affiliates including YA Global Investments II (U.S.), Yorkville Advisors Global, YAII GP entities, SC-Sigma Global Partners, and Mark Angelo, describing investment-manager and general-partner relationships.

What dates are relevant in the Indaptus Schedule 13G/A amendment?

The ownership position is reported as of 12/31/2025, and the amendment signatures are dated 04/06/2026. Those dates anchor the reported beneficial-ownership snapshot and the filing execution.

Does the filing indicate any voting or dispositive power over INDP shares?

No. For each reporting person the filing shows 0 sole and 0 shared voting power and 0 sole and 0 shared dispositive power, consistent with the reported 0 shares beneficially owned.