EOS Technology Holdings Inc.

SEC source: 0001104659-25-093471 · tm2527006-1_4seq1.xml · nonDerivative · entry 1

BRADLEY NATHANIEL T · CIK 0001755804 · Director · Chief Executive Officer · 10% owner

EOS Technology Holdings Inc. · CIK 0001882356 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By EOS Technology Holdings Inc.

Disclosed balance after: 12,109,002

F1 · shares: This Form 4 is jointly filed by Nathaniel Bradley ("Mr. Bradley") and EOS Technology Holdings Inc. ("EOS"). The shares of common stock, par value $0.0001 per share (the "Common Stock") of the issuer are beneficially owned both directly and indirectly, as outlined above and more fully described below, by Mr. Bradley. 180,000 shares of Common Stock of the issuer were transferred by EOS to a third party in pursuant to a side letter, dated as of September 23, 2025, (the "Side Letter") in connection with a consulting agreement, dated as of August 19, 2025 (the "Consulting Agreement"). Both the Consulting Agreement and the Side letter are by and between EOS and the consultant under the Consulting Agreement.

F2 · balance_after: Mr. Bradley, as an officer and member of the board of directors of EOS, has the power to dispose of and the power to vote the shares of Common Stock beneficially owned by EOS. Mr. Bradley disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of such securities for purposes of Section 16 of the Securities Exchange Act of 1934 (the "Exchange Act") or for any other purposes.

SEC source: 0001104659-25-088683 · tm2525675-1_4seq1.xml · nonDerivative · entry 1

BRADLEY NATHANIEL T · CIK 0001755804 · Director · Chief Executive Officer · 10% owner

EOS Technology Holdings Inc. · CIK 0001882356 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By EOS Technology Holdings Inc.

Disclosed balance after: 12,289,002

F1 · shares: This Form 4 is jointly filed by Nathaniel Bradley and EOS Technology Holdings Inc. ("EOS"). The shares of common stock, par value $0.0001 per share (the "Common Stock") of the issuer are beneficially owned both directly and indirectly, as outlined above and more fully described below, by Mr. Bradley. 10,000,000 shares of Common Stock of the issuer were issued to EOS pursuant to an amendment and conversion agreement, dated as of September 7, 2025 (the "EOS Note Amendment") between EOS and the issuer, to the Convertible Promissory Note (the "EOS Note") issued to EOS on December 31, 2024 in the original principal amount of $10,000,000. Pursuant to the EOS Note Amendment, EOS converted (the "EOS Note Conversion") $3,200,000 of the balance of the EOS Note into 10,000,000 shares of the issuer's Common Stock, at a conversion price of $0.32 per share, and the floor price set forth in the EOS Note was waived and did not apply to the EOS Note Conversion.

F2 · balance_after: Mr. Bradley, as an officer and sole director of EOS, has the power to dispose of and the power to vote the shares of Common Stock beneficially owned by EOS. Mr. Bradley disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of such securities for purposes of Section 16 of the Securities Exchange Act of 1934 (the "Exchange Act") or for any other purposes.

SEC source: 0001104659-25-081012 · tm2524022-1_4seq1.xml · nonDerivative · entry 1

BRADLEY NATHANIEL T · CIK 0001755804 · Director · Chief Executive Officer · 10% owner

EOS Technology Holdings Inc. · CIK 0001882356 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By EOS Technology Holdings Inc.

Disclosed balance after: 2,289,002

F1 · shares: This Form 4 is jointly filed by Nathaniel Bradley ("Mr. Bradley") and EOS Technology Holdings Inc. ("EOS"). The shares of common stock, par value $0.0001 per share (the "Common Stock") of the issuer are beneficially owned both directly and indirectly, as outlined above and more fully described below, by Mr. Bradley. 110,909 shares of Common Stock of the issuer were transferred by EOS to a third party in connection with a consulting agreement, dated as of August 19, 2025 (the "Consulting Agreement"), by and between EOS and the consultant under the Consulting Agreement.

F2 · balance_after: Mr. Bradley, as an officer and member of the board of directors of EOS, has the power to dispose of and the power to vote the shares of Common Stock beneficially owned by EOS. Mr. Bradley disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of such securities for purposes of Section 16 of the Securities Exchange Act of 1934 (the "Exchange Act") or for any other purposes.

SEC source: 0001104659-25-077038 · tm2523337-1_4seq1.xml · nonDerivative · entry 1

BRADLEY NATHANIEL T · CIK 0001755804 · Director · Chief Executive Officer · 10% owner

EOS Technology Holdings Inc. · CIK 0001882356 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By EOS Technology Holdings Inc.

Disclosed balance after: 2,399,911

F1 · shares: This Form 4 is jointly filed by Nathaniel Bradley ("Mr. Bradley") and EOS Technology Holdings Inc. ("EOS"). The shares of common stock, par value $0.0001 per share (the "Common Stock") of the issuer are beneficially owned both directly and indirectly, as outlined above and more fully described below, by Mr. Bradley. 1,000,000 shares of Common Stock of the issuer were transferred by EOS to a third party in connection with a services agreement, dated as of August 8, 2025 (the "Services Agreement"), by and between EOS and the services provider under the Services Agreement.

F2 · balance_after: Mr. Bradley, as an officer and member of the board of directors of EOS, has the power to dispose of and the power to vote the shares of Common Stock beneficially owned by EOS. Mr. Bradley disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of such securities for purposes of Section 16 of the Securities Exchange Act of 1934 (the "Exchange Act") or for any other purposes.

SEC source: 0001104659-25-073302 · tm2522136-1_4seq1.xml · nonDerivative · entry 2

BRADLEY NATHANIEL T · CIK 0001755804 · Director · Chief Executive Officer · 10% owner

EOS Technology Holdings Inc. · CIK 0001882356 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By EOS Technology Holdings Inc.

Disclosed balance after: 3,399,911

F2 · shares: An aggregate of 300,000 shares of Common Stock of the issuer were transferred by EOS to two separate third parties in connection with one Settlement Agreement and Release, dated as of July 31, 2025, by and between EOS, Mr. Bradley, and one of the third parties receiving shares of Common Stock.

F3 · balance_after: Mr. Bradley, as an officer and member of the board of directors of EOS, has the power to dispose of and the power to vote the shares of Common Stock beneficially owned by EOS. Mr. Bradley disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of such securities for purposes of Section 16 of the Securities Exchange Act of 1934 (the "Exchange Act") or for any other purposes.

SEC source: 0001104659-25-073302 · tm2522136-1_4seq1.xml · nonDerivative · entry 1

BRADLEY NATHANIEL T · CIK 0001755804 · Director · Chief Executive Officer · 10% owner

EOS Technology Holdings Inc. · CIK 0001882356 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By EOS Technology Holdings Inc.

Disclosed balance after: 3,699,911

F1 · shares: This Form 4 is jointly filed by Nathaniel Bradley ("Mr. Bradley") and EOS Technology Holdings Inc. ("EOS"). The shares of common stock, par value $0.0001 per share (the "Common Stock") of the issuer are beneficially owned both directly and indirectly, as outlined above and more fully described below, by Mr. Bradley. 300,000 shares of Common Stock of the issuer were transferred by EOS to a third party in connection with that certain Settlement Agreement and Release of all Claims, dated as of July 30, 2025, by and between the issuer, Mr. Bradley, and various other parties.

F3 · balance_after: Mr. Bradley, as an officer and member of the board of directors of EOS, has the power to dispose of and the power to vote the shares of Common Stock beneficially owned by EOS. Mr. Bradley disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of such securities for purposes of Section 16 of the Securities Exchange Act of 1934 (the "Exchange Act") or for any other purposes.

SEC source: 0001104659-25-003040 · tm252944-4_4seq1.xml · nonDerivative · entry 4

BRADLEY NATHANIEL T · CIK 0001755804 · Director · Chief Executive Officer · 10% owner

Data Vault Holdings Inc. · CIK 0001882356 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 600,000

F4 · security: Issuable upon the vesting of restricted stock units ("RSU"), each of which represents the right to receive one share of Common Stock, subject to the vesting terms of such RSU. The RSUs were received as compensation for Mr. Bradley's service as an officer of the issuer. The RSUs are scheduled to vest in equal installments with the initial 50,000 of such shares vesting on June 20, 2025, and thereafter, on each September 20th, December 20th, March 20th and June 20th, so long as Mr. Bradley remains in the service of the issuer on each such date.

SEC source: 0001104659-25-003040 · tm252944-4_4seq1.xml · nonDerivative · entry 3

BRADLEY NATHANIEL T · CIK 0001755804 · Director · Chief Executive Officer · 10% owner

Data Vault Holdings Inc. · CIK 0001882356 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Spouse

Disclosed balance after: 2,775,954

F1 · kind: Represents shares of common stock, par value $0.0001 per share, of the issuer (the "Common Stock") distributed by Data Vault Holdings Inc. ("Data Vault") to certain shareholders of Data Vault's on a pro rata basis in connection with a stock dividend.

F3 · balance_after: Mr. Bradley disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of such securities for purposes of Section 16 of the Exchange Act or for any other purposes.

SEC source: 0001104659-25-003040 · tm252944-4_4seq1.xml · nonDerivative · entry 2

BRADLEY NATHANIEL T · CIK 0001755804 · Director · Chief Executive Officer · 10% owner

Data Vault Holdings Inc. · CIK 0001882356 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,446,456

F1 · kind: Represents shares of common stock, par value $0.0001 per share, of the issuer (the "Common Stock") distributed by Data Vault Holdings Inc. ("Data Vault") to certain shareholders of Data Vault's on a pro rata basis in connection with a stock dividend.

SEC source: 0001104659-25-003040 · tm252944-4_4seq1.xml · nonDerivative · entry 1

BRADLEY NATHANIEL T · CIK 0001755804 · Director · Chief Executive Officer · 10% owner

Data Vault Holdings Inc. · CIK 0001882356 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Data Vault Holdings Inc.

Disclosed balance after: 3,999,911

F1 · kind: Represents shares of common stock, par value $0.0001 per share, of the issuer (the "Common Stock") distributed by Data Vault Holdings Inc. ("Data Vault") to certain shareholders of Data Vault's on a pro rata basis in connection with a stock dividend.

F2 · balance_after: This Form 4 is jointly filed by Nathaniel Bradley ("Mr. Bradley") and Data Vault. The shares Common Stock are beneficially owned both directly and indirectly, as outlined above and more fully described below, by Mr. Bradley. Mr. Bradley, as an officer and member of the board of directors of Data Vault, has the power to dispose of and the power to vote the shares of Common Stock beneficially owned by Data Vault. Mr. Bradley disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of such securities for purposes of Section 16 of the Securities Exchange Act of 1934 (the "Exchange Act") or for any other purposes.