Yun Yao (NASDAQ: INDP) reports 31.5% Indaptus stake change

Rhea-AI Filing Summary

Yun Yao filed Amendment No. 2 to her Schedule 13D on Indaptus Therapeutics, Inc., updating her beneficial ownership in the company’s common stock. She beneficially owns 41,991,000 shares, representing 31.51% of the common stock, based on 133,242,324 shares outstanding as of June 24, 2026.

The amendment reports that her percentage stake fell by more than 1% solely because Indaptus increased its outstanding shares in a private placement that closed on June 17, 2026. Yao did not buy or sell any common shares in connection with this change.

Her position was originally acquired through a Securities Purchase Agreement dated March 19, 2026, using personal funds of $4,317,206.43 to purchase Series AA and Series AAA Preferred Stock, which later converted into common stock at the March 23, 2026 closing.

Key Figures

Beneficial ownership: 41,991,000 shares Percent of class: 31.51% Shares outstanding: 133,242,324 shares +3 more

6 metrics

Beneficial ownership 41,991,000 shares Indaptus common stock beneficially owned by Yun Yao

Percent of class 31.51% Portion of Indaptus common stock class held by Yun Yao

Shares outstanding 133,242,324 shares Indaptus common stock outstanding as of June 24, 2026

Purchase amount $4,317,206.43 Personal funds used by Yun Yao to purchase Series AAA Preferred Stock

Private placement date June 17, 2026 Date of issuer private placement that diluted ownership percentage

Schedule 13D amendment number Amendment No. 2 Latest amendment updating Yun Yao’s Indaptus ownership

Key Terms

Schedule 13D, beneficially owns, Securities Purchase Agreement, Series AAA Preferred Stock, +1 more

5 terms

Schedule 13D regulatory

"This Amendment No. 2 ("Amendment No. 2") to relates to the common stock..."

A Schedule 13D is a legal document that investors file with regulators when they buy a large enough stake in a company to potentially influence its management or decisions. It provides details about the investor’s intention, ownership stake, and plans, helping other investors understand who is gaining control and what their motives might be.

beneficially owns financial

"Yun Yao beneficially owns 41,991,000 shares of the Issuer's Common Stock."

Beneficially owns means a person or entity enjoys the economic benefits and control of a security even if the legal title or registration is held in another name. Think of it like having the keys and profits from a car that is registered to a friend: you use it, benefit from it, and make decisions about it even though the official paperwork lists someone else. For investors, this matters because it reveals who truly controls shares, affects voting power, potential conflicts of interest, and regulatory disclosure obligations.

Securities Purchase Agreement financial

"The Series AAA Preferred Stock was purchased by Ms. Yao pursuant to the Securities Purchase Agreement, dated as of March 19, 2026..."

A securities purchase agreement is a written contract between a buyer and a seller outlining the terms for buying or selling financial assets such as stocks or bonds. It specifies details like the price, quantity, and conditions of the transaction, similar to a shopping list with agreed-upon terms. For investors, it provides clarity and legal protection when transferring ownership of these financial instruments.

Series AAA Preferred Stock financial

"The Series AAA Preferred Stock was purchased by Ms. Yao pursuant to the Securities Purchase Agreement..."

private placement financial

"the increase in the number of shares of Common Stock issued and outstanding upon the closing of the Issuer's private placement on June 17, 2026."

A private placement is a sale of securities directly to a selected group of investors, typically institutions or accredited investors, instead of through a public offering. It lets a company raise money faster and with fewer regulatory steps; for existing shareholders it matters because the newly issued shares, often sold at a discount, increase the share count and can dilute their ownership.

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Available on EDGAR 06/26/2026 - 08:00 PM Accepted by SEC EDGAR 06/26/2026 - 08:00 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 2)

Indaptus Therapeutics, Inc.

(Name of Issuer)

Common Stock, par value $0.01 per share

(Title of Class of Securities)

45339J105

(CUSIP Number)

Yun Yao
8404 / 70 Southbank Boulevard,
Southbank VIC, C3, 3006
0426 454 615

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

06/24/2026

(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

schemaVersion:

SCHEDULE 13D

CUSIP Number(s): 45339J105

1

Name of reporting person

Yao Yun

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

PF

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

AUSTRALIA

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 41,991,000.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 41,991,000.00
10	Shared Dispositive Power 0.00

11

Aggregate amount beneficially owned by each reporting person

41,991,000.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

31.51 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

Yun Yao beneficially owns 41,991,000 shares of the Issuer's Common Stock. Such shares were acquired pursuant to the Securities Purchase Agreement, dated as of March 19, 2026 (the "Purchase Agreement"), and were issued upon the conversion of the Issuer's Series AA and Series AAA Preferred Stock in connection with the closing of the transaction on March 23, 2026. All percentage calculations herein are based on 133,242,324 shares of Common Stock outstanding of the issuer as of June 24, 2026, based on information provided in the Form 8-K filed by the Issuer with the Securities and Exchange Commission on June 24, 2026. Please also refer to the Schedule 13D filed by Yun Yao on behalf of Yun Yao, Sino Lion Ventures Limited, Chenhao Xu, Junyi Dai, Ting Yang and Lina Deng with the Securities and Exchange Commission on March 30, 2026 and all amendments to date.

SCHEDULE 13D

Item 1.	Security and Issuer
(a)	Title of Class of Securities: Common Stock, par value $0.01 per share
(b)	Name of Issuer: Indaptus Therapeutics, Inc.
(c)	Address of Issuer's Principal Executive Offices: c/o Indaptus Therapeutics, Inc., 3 Columbus Circle, 15th Floor, New York, NEW YORK , 10019.
Item 1 Comment: Explanatory Note. This Amendment No. 2 ("Amendment No. 2") to Schedule 13D relates to the common stock, par value $0.01 per share (the "Common Stock") of Indaptus Therapeutics Inc., a Delaware corporation (the "Issuer"), and amends and supplements the initial statement on Schedule 13D originally filed by Yun Yao ("Reporting Person") on behalf of Yun Yao, Sino Lion Ventures Limited, Chenhao Xu, Junyi Dai, Ting Yang, and Lina Deng with the Securities and Exchange Commission ("SEC") on March 30, 2026, as amended by Amendment No. 1 filed on April 29, 2026 to report the disbandment of such group (collectively, the "Initial Schedule 13D", and as amended and supplemented by this Amendment No. 2, the "Schedule 13D"). Capitalized terms used but not defined in this Amendment No. 2 shall have the same meanings ascribed to them in the Initial Schedule 13D.
Item 2.	Identity and Background
(a)	Ms. Yun Yao, an individual.
(b)	Ms. Yao's address is 8404 / 70 Southbank Boulevard, Southbank VIC 3006, Australia.
(c)	Ms. Yao's present principal occupation is private investor.
(d)	During the last five years, Ms. Yao has not been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors).
(e)	During the last five years, Ms. Yao has not been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction, which as a result of such proceeding, was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, United States federal or state securities laws or finding any violation with respect to such laws.
(f)	Ms. Yao is a citizen of the Australia.
Item 3.	Source and Amount of Funds or Other Consideration
	The Series AAA Preferred Stock was purchased by Ms. Yao pursuant to the Securities Purchase Agreement, dated as of March 19, 2026 (the "Purchase Agreement") between David Lazar, Yun Yao, Sino Lion Ventures Limited, Junyi Dai, Ting Yang, and Lina Deng. The Purchase Agreement closed on March 23, 2026. Ms. Yao used personal funds in the aggregate amount of $4,317,206.43 to fund her purchase.
Item 4.	Purpose of Transaction
	The information set forth in Item 4 in the Initial Schedule 13D is incorporated herein by reference. This Amendment No. 2 is being filed to report a decrease of more than 1% in the percentage of the outstanding Common Stock beneficially owned by the Reporting Person, resulting solely from the increase in the number of shares of Common Stock issued and outstanding upon the closing of the Issuer's private placement on June 17, 2026. The Reporting Person did not acquire or dispose of any shares of Common Stock in connection therewith.
Item 5.	Interest in Securities of the Issuer
(a)	The information contained on the cover pages to this Schedule 13D is incorporated herein by reference. As of the date hereof, there are 133,242,324 shares of Common Stock outstanding as of June 24, 2026, as calculated based on the Issuer's Form 8-K filed with the SEC on June 24, 2026.
(b)	The following table sets forth the number of Common Stock as to which the Reporting Person has (i) the sole power to vote or direct the vote, (ii) shared power to vote or to direct the vote, (iii) sole power to dispose or to direct the disposition, or (iv) shared power to dispose or to direct disposition: Reporting Person Sole Voting Power Shared Voting Power Sole Dispositive Power Shared Dispositive Power Yun Yao 41,991,000.00 0 41,991,000.00 0
(c)	The Reporting Person have not effected any transaction in the shares of Common Stock during the past 60 days.
(d)	No other person is known to have the right to receive or the power to direct the receipt of dividends from, or any proceeds from the sale of, the common stock beneficially owned by the Reporting Person.
(e)	Not applicable.
Item 6.	Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer
	The information set forth in Item 6 in the Initial Schedule 13D is incorporated herein by reference. The information set forth in Item 3 and Item 4 above is incorporated herein by reference.
Item 7.	Material to be Filed as Exhibits.
	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.

Yao Yun

Signature:	/s/ Yun Yao
Name/Title:	Yun Yao
Date:	06/26/2026

FAQ

How many Indaptus (INDP) shares does Yun Yao currently beneficially own?

Yun Yao beneficially owns 41,991,000 shares of Indaptus common stock. This position reflects shares issued upon conversion of preferred stock, giving her a major stake in the company based on the latest outstanding share count.

What percentage of Indaptus (INDP) does Yun Yao’s stake represent?

Yun Yao’s 41,991,000 shares represent 31.51% of Indaptus’s common stock. This percentage is calculated using 133,242,324 shares outstanding as of June 24, 2026, based on information from the company’s Form 8-K.

Did Yun Yao buy or sell Indaptus (INDP) shares in this Schedule 13D amendment?

The amendment states that Yun Yao did not acquire or dispose of any common shares. Her reported ownership percentage decreased only because Indaptus issued additional shares in a private placement completed on June 17, 2026.

How did Yun Yao originally acquire her Indaptus (INDP) position?

Yun Yao acquired her position through a Securities Purchase Agreement dated March 19, 2026. She used personal funds of $4,317,206.43 to buy Series AA and Series AAA Preferred Stock, which converted into common shares at closing on March 23, 2026.

What is the total number of Indaptus (INDP) shares outstanding used in Yun Yao’s ownership calculation?

The filing uses 133,242,324 shares of Indaptus common stock outstanding as of June 24, 2026. This figure comes from the company’s Form 8-K filed on that date and serves as the basis for calculating Yun Yao’s 31.51% ownership.

Why did Yun Yao file Amendment No. 2 to her Schedule 13D on Indaptus (INDP)?

Amendment No. 2 was filed to report a more than 1% decrease in Yun Yao’s ownership percentage. The change resulted solely from additional Indaptus shares issued in a June 17, 2026 private placement, which diluted her percentage stake without any trading by her.