HRT Financial LP boosts stake in Aditxt (NASDAQ: ADTX) with net share buys

Rhea-AI Filing Summary

HRT Financial LP, a ten percent owner of Aditxt, Inc., reported a series of open-market trades in Aditxt common stock over three days in June 2026.

It bought 1,423,493 shares at $0.049 and 725,330 shares at $0.019, while selling 878,659 shares at $0.033, resulting in a net purchase of 1,270,164 shares. Following the most recent trade, HRT Financial LP directly holds 1,040,004 Aditxt common shares.

Insights

Equity analyst

Large 10% owner shows net buying in Aditxt shares at very low prices.

HRT Financial LP, identified as a ten percent owner of Aditxt, Inc., reported several open-market trades in Aditxt common stock over three consecutive days in June 2026. The pattern combines both buying and selling activity.

The fund purchased 1,423,493 shares at $0.049 and 725,330 shares at $0.019, and sold 878,659 shares at $0.033, for a net buy of 1,270,164 shares according to the transaction summary. After these trades, it directly holds 1,040,004 shares.

These are open-market transactions (codes P and S), which generally reflect active decisions rather than automatic grants. The overall effect is increased exposure to Aditxt, but the filing does not provide context on total shares outstanding or any trading plans, so the broader impact remains hard to assess.

Insider Trade Summary

Net Buyer: 1,270,164 shares ($83,532)

Net Buy 3 txns

Insider HRT FINANCIAL LP

Role null

Bought 2,148,823 shs ($84K)

Sold 878,659 shs ($29K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	725,330	$0.019	$14K
Sale	Common Stock	878,659	$0.033	$29K
Purchase	Common Stock	1,423,493	$0.049	$70K

Holdings After Transaction: Common Stock — 1,040,004 shares (Direct, null)

Footnotes (1)

Key Figures

Purchase on June 8, 2026: 1,423,493 shares at $0.049 Sale on June 9, 2026: 878,659 shares at $0.033 Purchase on June 10, 2026: 725,330 shares at $0.019 +4 more

7 metrics

Purchase on June 8, 2026 1,423,493 shares at $0.049 Open-market purchase of Aditxt common stock

Sale on June 9, 2026 878,659 shares at $0.033 Open-market sale of Aditxt common stock

Purchase on June 10, 2026 725,330 shares at $0.019 Open-market purchase of Aditxt common stock

Net shares bought 1,270,164 shares Net of buys and sales in June 2026 transactions

Shares held after latest trade 1,040,004 shares Direct Aditxt common stock holding after June 10, 2026

Total shares bought 2,148,823 shares Sum of reported open-market purchases

Total shares sold 878,659 shares Reported open-market sale

Key Terms

open-market purchase, open-market sale, ten percent owner, non-derivative

4 terms

open-market purchase financial

"transaction_action": "open-market purchase""

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.

open-market sale financial

"transaction_action": "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

ten percent owner financial

""is_ten_percent_owner": 1"

non-derivative financial

""transaction_type": "non-derivative""

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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	06/08/2026		P		1,423,493	A	$0.049	1,193,333	D
Common Stock	06/09/2026		S		878,659	D	$0.033	314,674	D
Common Stock	06/10/2026		P		725,330	A	$0.019	1,040,004	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	06/11/2026
	** 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 trading activity did HRT Financial LP report for Aditxt (ADTX)?

HRT Financial LP reported multiple open-market trades in Aditxt common stock, including both purchases and a sale. Across three days in June 2026, the transactions resulted in a net purchase of 1,270,164 shares, increasing its direct ownership position in Aditxt.

How many Aditxt (ADTX) shares did HRT Financial LP buy and sell?

HRT Financial LP bought 1,423,493 Aditxt shares at $0.049 and 725,330 shares at $0.019, while selling 878,659 shares at $0.033. This combination of trades produced a net increase of 1,270,164 Aditxt common shares, based on the Form 4 transaction summary.

What is HRT Financial LP’s Aditxt (ADTX) shareholding after these Form 4 trades?

Following the most recent reported transaction, HRT Financial LP directly holds 1,040,004 shares of Aditxt common stock. This figure reflects its position after completing the series of open-market purchases and sales disclosed for the June 2026 trading dates.

At what prices did HRT Financial LP trade Aditxt (ADTX) shares?

The reported Aditxt trades occurred at very low prices per share. Purchases were made at $0.049 and $0.019, while the sale was executed at $0.033 per share. These specific prices apply to the individual transactions disclosed in the Form 4 filing.

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

Yes. The Form 4 identifies HRT Financial LP as a ten percent owner of Aditxt, Inc. This status means it holds at least ten percent of a class of the company’s equity securities, making its trading activity particularly relevant for monitoring large shareholder movements.