Aditxt insiders report 100,000-share ownership stake

Aditxt, Inc. filed an initial ownership report showing that Sandie Gong and Devon Xin Xu are each ten percent owners.

Rhea-AI Filing Summary

Aditxt, Inc. filed an initial ownership report showing that Sandie Gong and Devon Xin Xu are each ten percent owners. The filing reports that 100,000 shares of Common Stock are held in a brokerage account of Sandie Gong. Xu is identified as Gong’s spouse and has trading authorization over the same brokerage account, and may be deemed to beneficially own these reported securities as well. This Form 3 establishes their status as significant shareholders but does not report any new buy or sell transactions.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Gong Sandie, Xu Devon Xin

Role 10% Owner | 10% Owner

Type	Security	Shares	Price	Value
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 100,000 shares (Direct)

Footnotes (1)

1. F1. The reported securities are held directly in a brokerage account of Sandie Gong. Devon Xu is the spouse of Sandie Gong and holds trading authorization over the brokerage account in which the reported securities are held, and accordingly may be deemed to beneficially own the reported securities.

Key Figures

Common Stock held: 100,000 shares

1 metrics

Common Stock held 100,000 shares Shares of Aditxt Common Stock reported as held in Sandie Gong’s brokerage account

Key Terms

ten percent owner, beneficially own, trading authorization

3 terms

ten percent owner regulatory

"reportingPersons ... "is_ten_percent_owner": 1"

beneficially own regulatory

"may be deemed to beneficially own the reported securities"

Beneficially own means having the economic rights and risks of a security—such as the right to receive dividends, sell the shares, or profit from price changes—whether or not your name appears on the official share register. Think of it like renting a car: you use it and reap the benefits even if the title lists someone else. Investors care because beneficial ownership determines who truly controls value, must be disclosed under securities rules, and can signal potential influence or trading activity that affects a stock’s price.

trading authorization financial

"Devon Xu ... holds trading authorization over the brokerage account"

FAQ

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

What does the Aditxt (ADTX) Form 3 filing by Sandie Gong and Devon Xin Xu show?

The Form 3 shows that Sandie Gong and Devon Xin Xu are each ten percent owners of Aditxt. It reports 100,000 shares of Common Stock held in a brokerage account of Gong, with Xu having trading authorization and deemed beneficial ownership.

How many Aditxt (ADTX) shares are reported in Sandie Gong’s brokerage account?

The filing reports 100,000 shares of Aditxt Common Stock held directly in a brokerage account of Sandie Gong. This amount represents their disclosed ownership position in the Form 3 and is the basis for their ten percent owner status.

How is Devon Xin Xu related to the Aditxt (ADTX) shares reported in the Form 3?

Devon Xin Xu is described as the spouse of Sandie Gong and holds trading authorization over Gong’s brokerage account. Because of this authorization, Xu may be deemed to beneficially own the same 100,000 Aditxt Common Stock shares reported in the Form 3.

Does the Aditxt (ADTX) Form 3 for Gong and Xu report any stock purchases or sales?

The Form 3 does not report any purchases or sales of Aditxt stock. It is an initial ownership filing that discloses a holding of 100,000 Common Stock shares, rather than documenting a new transaction in the company’s shares.

Why are Sandie Gong and Devon Xin Xu identified as ten percent owners of Aditxt (ADTX)?

They are identified as ten percent owners because their reported holdings meet the SEC threshold for significant beneficial ownership. The Form 3 shows 100,000 Aditxt Common Stock shares held in Gong’s brokerage account, with Xu deemed to beneficially own those shares through trading authorization.

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

Understanding Insider Trading Forms →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Accepted by SEC EDGAR 06/10/2026 - 09:35 PM EDT Learn about SEC filing dates

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Gong Sandie

(Last) (First) (Middle)

398 SACKETT ST

UNIT 2

(Street)

BROOKLYN NEW YORK 11231

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
06/09/2026

3. Issuer Name and Ticker or Trading Symbol
Aditxt, Inc. [ ADTX ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

6. Individual or Joint/Group Filing (Check Applicable Line)

	Form filed by One Reporting Person
X	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	100,000(1)	D(1)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

1. Name and Address of Reporting Person^*

Gong Sandie

(Last) (First) (Middle)

398 SACKETT ST

UNIT 2

(Street)

BROOKLYN NEW YORK 11231

(City) (State) (Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

Xu Devon Xin

(Last) (First) (Middle)

398 SACKETT ST

UNIT 2

(Street)

BROOKLYN NEW YORK 11231

(City) (State) (Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

Explanation of Responses:

1. The reported securities are held directly in a brokerage account of Sandie Gong. Devon Xu is the spouse of Sandie Gong and holds trading authorization over the brokerage account in which the reported securities are held, and accordingly may be deemed to beneficially own the reported securities.

Remarks:

The Reporting Persons acquired the reported securities on June 9, 2026 and disposed of all such securities on the same trading day. As of the date of this filing, the Reporting Persons beneficially own no securities of the Issuer. The disposition is reported on a Form 4 filed by the Reporting Persons.

	/s/ Sandie Gong	06/10/2026
	/s/ Devon Xin Xu	06/10/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)