HRT Financial LP (ADTX) reports 4.25M-share open-market buy in Aditxt

Rhea-AI Filing Summary

HRT Financial LP, a ten percent owner of Aditxt, Inc., reported an open-market purchase of 4,252,767 shares of Aditxt common stock. The filing shows a purchase price of $0.016 per share. Following this transaction, HRT Financial LP is reported as directly owning 2,459,308 shares of Aditxt common stock.

Insights

Insider trading analyst

Large open-market buy by a 10% owner signals added exposure.

HRT Financial LP, identified as a ten percent owner of Aditxt, Inc., executed an open-market purchase of 4,252,767 shares of common stock at $0.016 per share. The transaction code P confirms this as a purchase rather than a derivative exercise or gift.

After the trade, HRT Financial LP is shown holding 2,459,308 shares directly. The filing does not provide share count baselines or market value context, so the materiality relative to Aditxt’s total equity cannot be assessed from this data alone. No derivative positions are listed in the accompanying derivative summary.

The transactionSummary characterizes the activity as a net-buy with one buy transaction and no sales. Future company filings may give additional context on how this position fits within Aditxt’s broader ownership structure and any subsequent changes in this holder’s stake.

Insider Trade Summary

Net Buyer: 4,252,767 shares ($68,044)

Net Buy 1 txn

Insider HRT FINANCIAL LP

Role null

Bought 4,252,767 shs ($68K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	4,252,767	$0.016	$68K

Holdings After Transaction: Common Stock — 2,459,308 shares (Direct, null)

Footnotes (1)

Key Figures

Shares purchased: 4,252,767 shares Purchase price: $0.016 per share Shares held after transaction: 2,459,308 shares +2 more

5 metrics

Shares purchased 4,252,767 shares Open-market purchase on 2026-06-12

Purchase price $0.016 per share Price for Aditxt common stock in this transaction

Shares held after transaction 2,459,308 shares Direct Aditxt holdings reported post-trade

Net-buy shares 4,252,767 shares transactionSummary net buy figure

Buy transaction count 1 transaction Number of buy transactions in this Form 4

Key Terms

open-market purchase, ten percent owner, Form 4, net-buy

4 terms

open-market purchase financial

"reported an open-market purchase of 4,252,767 shares of Aditxt common stock"

An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.

ten percent owner regulatory

"HRT Financial LP, a ten percent owner of Aditxt, Inc."

Form 4 regulatory

"This Form 4 filing indicates a net-buy transaction"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

net-buy financial

"The transactionSummary characterizes the activity as a net-buy"

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Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

HRT FINANCIAL LP

(Last) (First) (Middle)

3 WORLD TRADE CENTER, 175 GREENWICH STRE

76TH FLOOR

(Street)

NEW YORK NEW YORK 10007

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/08/2026

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

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

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

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	06/12/2026		P		4,252,767	A	$0.016	2,459,308	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	Adam Nunes	06/16/2026
	** 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 4 (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 4: SEC 1474 (03-26)

FAQ

What insider transaction did HRT Financial LP report for Aditxt (ADTX)?

HRT Financial LP reported buying 4,252,767 shares of Aditxt common stock in an open-market purchase at $0.016 per share. This Form 4 filing indicates a net-buy transaction, with no corresponding sales or derivative exercises reported for the same date.

At what price did HRT Financial LP buy Aditxt (ADTX) shares?

HRT Financial LP bought Aditxt common stock at $0.016 per share in this transaction. The Form 4 identifies the trade as an open-market purchase, meaning the shares were acquired through regular market trading rather than via options, conversions, or compensation awards.

How many Aditxt (ADTX) shares does HRT Financial LP hold after this trade?

After the reported transaction, HRT Financial LP is shown holding 2,459,308 Aditxt common shares directly. This total reflects its position following the 4,252,767-share open-market purchase disclosed in the Form 4, without any offsetting reported sales on that date.

What is the transaction code for HRT Financial LP’s Aditxt (ADTX) trade?

The transaction code is P, which indicates an open-market or privately negotiated purchase of Aditxt common stock. This differentiates the activity from option exercises, gifts, or tax withholdings and confirms it as a straightforward buy in the market.

Is HRT Financial LP considered a major holder of Aditxt (ADTX)?

Yes. The Form 4 identifies HRT Financial LP as a ten percent owner of Aditxt, Inc. This status typically reflects significant influence and triggers additional reporting obligations, including prompt disclosure of material share purchases or sales under SEC insider reporting rules.

Does the Aditxt (ADTX) Form 4 show any derivative positions for HRT Financial LP?

No derivative positions are listed for HRT Financial LP in this Form 4. The derivativeSummary is empty, and the only reported activity is the non-derivative open-market purchase of 4,252,767 Aditxt common shares at $0.016 per share.