person · Reporting owner

Hammer Joseph D

Disclosed activity across 3 companies

Tapewire entity: 19952
SEC CIK: 0001576484

Reported relationships

Latest disclosed role at each company.

Company	Last reported as	Report date	Published
CYABRA, INC.CYAB · Entity 8037	10% owner	March 27, 2026	April 23, 2026
Expion Energy, Inc.XPON · Entity 8198	Director · Former Chief Executive Officer	August 21, 2026	August 26, 2026
Trailblazer Merger Corp ITBMCU · Entity 86791	Director · 10% owner	March 31, 2023	April 04, 2023

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

CYABRA, INC.

Report date March 27, 2026 · Filed April 23, 2026

Jointly reported with Trailblazer Sponsor Group, LLC

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	Direct	2,158,949	Reported balance Holding disclosure · report date 2026-03-27 · row 1 Holding and transaction disclosures are not merged. 1 source row Row 1 · Balance 2,158,949 F1: The 2,158,949 shares (the "Shares") of the issuer's common stock, par value $0.0001 per share (the "Common Stock") are beneficially owned directly by Trailblazer Sponsor Group, LLC (the "Sponsor"). The manager of the Sponsor, Joseph Hammer, has voting and dispositive power over the Shares beneficially owned by the Sponsor. Mr. Hammer disclaims any beneficial ownership of the securities held by the Sponsor, except to the extent of his pecuniary interest therein.

Filing footnotes · ownership attribution and instrument terms

F1: The 2,158,949 shares (the "Shares") of the issuer's common stock, par value $0.0001 per share (the "Common Stock") are beneficially owned directly by Trailblazer Sponsor Group, LLC (the "Sponsor"). The manager of the Sponsor, Joseph Hammer, has voting and dispositive power over the Shares beneficially owned by the Sponsor. Mr. Hammer disclaims any beneficial ownership of the securities held by the Sponsor, except to the extent of his pecuniary interest therein.

Expion Energy, Inc.

Report date August 21, 2026 · Filed August 26, 2026

Security / award	Ownership account	Disclosed shares / units	Disclosure context
8% Convertible Debenture Due August 21, 2029SEC Table II · derivative / convertible security · Conversion / exercise price $1,000.00 · Expires 2029-08-21	IndirectSee footnote	4,500	Reported balance After 2026-08-21 transaction · row 1 Instrument identity requires review; Table II rows are not merged. 1 source row Row 1 · 2026-08-21 · Purchase · Acquired 4,500 · Balance 4,500 F1: The Reporting Person served as the Chief Executive Officer of Expion Energy, Inc. (the "Company") through the Transaction Date, and continues to serve as the Chairman of the Board of Directors of the Company. F2: Subject to the Company receiving shareholder approval and filing the Certificate of Designation, the 8% Convertible Debenture Due August 21, 2029 (the "Convertible Debenture") will automatically convert into shares of the Company's Series A-1 8% Convertible Preferred Stock (the "Preferred Conversion Shares") based on a stated value of $1,000 per share, resulting in the issuance of up to 4,500 Preferred Conversion Shares. The Preferred Conversion Shares may subsequently be converted into 1,058,609 shares of the Company's common stock, par value $0.001 per share ("Common Stock"), based on an initial conversion price of $4.25 per share, subject to adjustment as set forth in the Certificate of Designation. The Convertible Debenture, as well as the Preferred Conversion Shares issuable upon conversion thereof, is subject to a beneficial ownership limitation of 9.99% of the outstanding shares of Common Stock. F3: The maturity date of the Convertible Debenture is August 21, 2029. F4: The Derivative Securities are held by Five Narrow Lane LP ("FNL"). The Reporting Person may be deemed to beneficially own the Derivative Securities for purposes of Rule 13d-3 under the Securities Exchange Act of 1934.
Common Stock Purchase WarrantSEC Table II · derivative / convertible security · Conversion / exercise price $4.25 · Expires 2031-08-21	IndirectSee footnote	1,058,609	Reported balance After 2026-08-21 transaction · row 2 Instrument identity requires review; Table II rows are not merged. 1 source row Row 2 · 2026-08-21 · Purchase · Acquired 1,058,609 · Balance 1,058,609 F1: The Reporting Person served as the Chief Executive Officer of Expion Energy, Inc. (the "Company") through the Transaction Date, and continues to serve as the Chairman of the Board of Directors of the Company. F5: The Common Stock Purchase Warrant (the "Warrant") is exercisable for an aggregate of up to 1,058,609 shares of Common Stock based on an initial exercise price of $4.25 per share, subject to adjustment as set forth in the Warrant. The Warrant is subject to a beneficial ownership limitation of 9.99% of the outstanding shares of Common Stock. F6: The Warrant was immediately exercisable on the date of issuance and expires on the five year anniversary of the date of issuance. F4: The Derivative Securities are held by Five Narrow Lane LP ("FNL"). The Reporting Person may be deemed to beneficially own the Derivative Securities for purposes of Rule 13d-3 under the Securities Exchange Act of 1934.

Filing footnotes · ownership attribution and instrument terms

F1: The Reporting Person served as the Chief Executive Officer of Expion Energy, Inc. (the "Company") through the Transaction Date, and continues to serve as the Chairman of the Board of Directors of the Company.

F2: Subject to the Company receiving shareholder approval and filing the Certificate of Designation, the 8% Convertible Debenture Due August 21, 2029 (the "Convertible Debenture") will automatically convert into shares of the Company's Series A-1 8% Convertible Preferred Stock (the "Preferred Conversion Shares") based on a stated value of $1,000 per share, resulting in the issuance of up to 4,500 Preferred Conversion Shares. The Preferred Conversion Shares may subsequently be converted into 1,058,609 shares of the Company's common stock, par value $0.001 per share ("Common Stock"), based on an initial conversion price of $4.25 per share, subject to adjustment as set forth in the Certificate of Designation. The Convertible Debenture, as well as the Preferred Conversion Shares issuable upon conversion thereof, is subject to a beneficial ownership limitation of 9.99% of the outstanding shares of Common Stock.

F3: The maturity date of the Convertible Debenture is August 21, 2029.

F4: The Derivative Securities are held by Five Narrow Lane LP ("FNL"). The Reporting Person may be deemed to beneficially own the Derivative Securities for purposes of Rule 13d-3 under the Securities Exchange Act of 1934.

F5: The Common Stock Purchase Warrant (the "Warrant") is exercisable for an aggregate of up to 1,058,609 shares of Common Stock based on an initial exercise price of $4.25 per share, subject to adjustment as set forth in the Warrant. The Warrant is subject to a beneficial ownership limitation of 9.99% of the outstanding shares of Common Stock.

F6: The Warrant was immediately exercisable on the date of issuance and expires on the five year anniversary of the date of issuance.

Trailblazer Merger Corp I

Report date March 31, 2023 · Filed April 04, 2023

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	IndirectSee Footnote	2,119,500	Reported balance After 2023-03-31 transaction · row 1 Account identity is unresolved; indirect or unspecified ownership is not merged. 1 source row Row 1 · 2023-03-31 · Purchase · Acquired 394,500 · Balance 2,119,500 F1: The reporting person acquired 394,500 units, each unit consisting of one share of Class A common stock and one right to receive one-tenth (1/10) share of Class A common stock. F2: Shares owned by Trailblazer Sponsor Group, LLC (the "Sponsor") over which Joseph Hammer has voting and dispositive power. F3: As the manager of the Sponsor, the reporting person may be deemed to have beneficial ownership of the shares of common stock held directly by the Sponsor, and disclaims any pecuniary interest of the reported shares other than to the extent of any economic interest he may have therein, directly or indirectly.
Rights to acquire Common StockSEC Table II · derivative / convertible security	IndirectSee Footnote	394,500	Reported balance After 2023-03-31 transaction · row 2 Instrument identity requires review; Table II rows are not merged. 1 source row Row 2 · 2023-03-31 · Purchase · Acquired 394,500 · Balance 394,500 F4: The rights convert automatically into shares of Class A common stock at the completion of the registrant's initial business combination. F1: The reporting person acquired 394,500 units, each unit consisting of one share of Class A common stock and one right to receive one-tenth (1/10) share of Class A common stock. F2: Shares owned by Trailblazer Sponsor Group, LLC (the "Sponsor") over which Joseph Hammer has voting and dispositive power. F3: As the manager of the Sponsor, the reporting person may be deemed to have beneficial ownership of the shares of common stock held directly by the Sponsor, and disclaims any pecuniary interest of the reported shares other than to the extent of any economic interest he may have therein, directly or indirectly. F5: Rights owned by the Sponsor over which Joseph Hammer has voting and dispositive power.

Filing footnotes · ownership attribution and instrument terms

F1: The reporting person acquired 394,500 units, each unit consisting of one share of Class A common stock and one right to receive one-tenth (1/10) share of Class A common stock.

F2: Shares owned by Trailblazer Sponsor Group, LLC (the "Sponsor") over which Joseph Hammer has voting and dispositive power.

F3: As the manager of the Sponsor, the reporting person may be deemed to have beneficial ownership of the shares of common stock held directly by the Sponsor, and disclaims any pecuniary interest of the reported shares other than to the extent of any economic interest he may have therein, directly or indirectly.

F4: The rights convert automatically into shares of Class A common stock at the completion of the registrant's initial business combination.

F5: Rights owned by the Sponsor over which Joseph Hammer has voting and dispositive power.

Transaction history

JSON API

Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction date	Company	Activity / security	Shares / units	Reported price	Reported value	Details
August 21, 2026 Filed Aug 26, 2026 01:12 UTC	Expion Energy, Inc. XPON · Entity 8198	PurchaseCommon Stock Purchase Warrant · Derivative	1,058,609	$0.00 Strike: $4.25	$0.00	Disclosure SEC source: 0001903596-26-000318 · ownership.xml · derivative · entry 2 Hammer Joseph D · CIK 0001576484 · Director · Former Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 1,058,609 Underlying: Common Stock · 1,058,609 shares Expires 2031-08-21 F1 · date: The Reporting Person served as the Chief Executive Officer of Expion Energy, Inc. (the "Company") through the Transaction Date, and continues to serve as the Chairman of the Board of Directors of the Company. F5 · shares: The Common Stock Purchase Warrant (the "Warrant") is exercisable for an aggregate of up to 1,058,609 shares of Common Stock based on an initial exercise price of $4.25 per share, subject to adjustment as set forth in the Warrant. The Warrant is subject to a beneficial ownership limitation of 9.99% of the outstanding shares of Common Stock. F6 · derivative.exercise_date: The Warrant was immediately exercisable on the date of issuance and expires on the five year anniversary of the date of issuance. F6 · derivative.expiration_date: The Warrant was immediately exercisable on the date of issuance and expires on the five year anniversary of the date of issuance. F5 · derivative.underlying_shares: The Common Stock Purchase Warrant (the "Warrant") is exercisable for an aggregate of up to 1,058,609 shares of Common Stock based on an initial exercise price of $4.25 per share, subject to adjustment as set forth in the Warrant. The Warrant is subject to a beneficial ownership limitation of 9.99% of the outstanding shares of Common Stock. F5 · balance_after: The Common Stock Purchase Warrant (the "Warrant") is exercisable for an aggregate of up to 1,058,609 shares of Common Stock based on an initial exercise price of $4.25 per share, subject to adjustment as set forth in the Warrant. The Warrant is subject to a beneficial ownership limitation of 9.99% of the outstanding shares of Common Stock. F4 · ownership.nature: The Derivative Securities are held by Five Narrow Lane LP ("FNL"). The Reporting Person may be deemed to beneficially own the Derivative Securities for purposes of Rule 13d-3 under the Securities Exchange Act of 1934. Read SEC document
August 21, 2026 Filed Aug 26, 2026 01:12 UTC	Expion Energy, Inc. XPON · Entity 8198	Purchase8% Convertible Debenture Due August 21, 2029 · Derivative	4,500	$4,500,000.00 Strike: $1,000.00	$20,250,000,000.00	Disclosure SEC source: 0001903596-26-000318 · ownership.xml · derivative · entry 1 Hammer Joseph D · CIK 0001576484 · Director · Former Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 4,500 Underlying: Series A-1 8% Convertible Preferred Stock · 4,500 shares Expires 2029-08-21 F1 · date: The Reporting Person served as the Chief Executive Officer of Expion Energy, Inc. (the "Company") through the Transaction Date, and continues to serve as the Chairman of the Board of Directors of the Company. F2 · shares: Subject to the Company receiving shareholder approval and filing the Certificate of Designation, the 8% Convertible Debenture Due August 21, 2029 (the "Convertible Debenture") will automatically convert into shares of the Company's Series A-1 8% Convertible Preferred Stock (the "Preferred Conversion Shares") based on a stated value of $1,000 per share, resulting in the issuance of up to 4,500 Preferred Conversion Shares. The Preferred Conversion Shares may subsequently be converted into 1,058,609 shares of the Company's common stock, par value $0.001 per share ("Common Stock"), based on an initial conversion price of $4.25 per share, subject to adjustment as set forth in the Certificate of Designation. The Convertible Debenture, as well as the Preferred Conversion Shares issuable upon conversion thereof, is subject to a beneficial ownership limitation of 9.99% of the outstanding shares of Common Stock. F2 · derivative.exercise_date: Subject to the Company receiving shareholder approval and filing the Certificate of Designation, the 8% Convertible Debenture Due August 21, 2029 (the "Convertible Debenture") will automatically convert into shares of the Company's Series A-1 8% Convertible Preferred Stock (the "Preferred Conversion Shares") based on a stated value of $1,000 per share, resulting in the issuance of up to 4,500 Preferred Conversion Shares. The Preferred Conversion Shares may subsequently be converted into 1,058,609 shares of the Company's common stock, par value $0.001 per share ("Common Stock"), based on an initial conversion price of $4.25 per share, subject to adjustment as set forth in the Certificate of Designation. The Convertible Debenture, as well as the Preferred Conversion Shares issuable upon conversion thereof, is subject to a beneficial ownership limitation of 9.99% of the outstanding shares of Common Stock. F3 · derivative.expiration_date: The maturity date of the Convertible Debenture is August 21, 2029. F2 · derivative.underlying: Subject to the Company receiving shareholder approval and filing the Certificate of Designation, the 8% Convertible Debenture Due August 21, 2029 (the "Convertible Debenture") will automatically convert into shares of the Company's Series A-1 8% Convertible Preferred Stock (the "Preferred Conversion Shares") based on a stated value of $1,000 per share, resulting in the issuance of up to 4,500 Preferred Conversion Shares. The Preferred Conversion Shares may subsequently be converted into 1,058,609 shares of the Company's common stock, par value $0.001 per share ("Common Stock"), based on an initial conversion price of $4.25 per share, subject to adjustment as set forth in the Certificate of Designation. The Convertible Debenture, as well as the Preferred Conversion Shares issuable upon conversion thereof, is subject to a beneficial ownership limitation of 9.99% of the outstanding shares of Common Stock. F2 · derivative.underlying_shares: Subject to the Company receiving shareholder approval and filing the Certificate of Designation, the 8% Convertible Debenture Due August 21, 2029 (the "Convertible Debenture") will automatically convert into shares of the Company's Series A-1 8% Convertible Preferred Stock (the "Preferred Conversion Shares") based on a stated value of $1,000 per share, resulting in the issuance of up to 4,500 Preferred Conversion Shares. The Preferred Conversion Shares may subsequently be converted into 1,058,609 shares of the Company's common stock, par value $0.001 per share ("Common Stock"), based on an initial conversion price of $4.25 per share, subject to adjustment as set forth in the Certificate of Designation. The Convertible Debenture, as well as the Preferred Conversion Shares issuable upon conversion thereof, is subject to a beneficial ownership limitation of 9.99% of the outstanding shares of Common Stock. F2 · balance_after: Subject to the Company receiving shareholder approval and filing the Certificate of Designation, the 8% Convertible Debenture Due August 21, 2029 (the "Convertible Debenture") will automatically convert into shares of the Company's Series A-1 8% Convertible Preferred Stock (the "Preferred Conversion Shares") based on a stated value of $1,000 per share, resulting in the issuance of up to 4,500 Preferred Conversion Shares. The Preferred Conversion Shares may subsequently be converted into 1,058,609 shares of the Company's common stock, par value $0.001 per share ("Common Stock"), based on an initial conversion price of $4.25 per share, subject to adjustment as set forth in the Certificate of Designation. The Convertible Debenture, as well as the Preferred Conversion Shares issuable upon conversion thereof, is subject to a beneficial ownership limitation of 9.99% of the outstanding shares of Common Stock. F4 · ownership.nature: The Derivative Securities are held by Five Narrow Lane LP ("FNL"). The Reporting Person may be deemed to beneficially own the Derivative Securities for purposes of Rule 13d-3 under the Securities Exchange Act of 1934. Read SEC document
March 31, 2023 Filed Apr 4, 2023 15:32 UTC	Trailblazer Merger Corp I TBMCU · Entity 86791	PurchaseRights to acquire Common Stock · Derivative	394,500	Not disclosed	Not disclosed	Disclosure SEC source: 0001213900-23-026829 · ownership.xml · derivative · entry 2 Hammer Joseph D · CIK 0001576484 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnote Disclosed balance after: 394,500 Underlying: Common Stock · 39,450 shares Expires not disclosed F4 · derivative.exercise_price: The rights convert automatically into shares of Class A common stock at the completion of the registrant's initial business combination. F1 · price: The reporting person acquired 394,500 units, each unit consisting of one share of Class A common stock and one right to receive one-tenth (1/10) share of Class A common stock. F4 · derivative.exercise_date: The rights convert automatically into shares of Class A common stock at the completion of the registrant's initial business combination. F4 · derivative.expiration_date: The rights convert automatically into shares of Class A common stock at the completion of the registrant's initial business combination. F2 · ownership.nature: Shares owned by Trailblazer Sponsor Group, LLC (the "Sponsor") over which Joseph Hammer has voting and dispositive power. F3 · ownership.nature: As the manager of the Sponsor, the reporting person may be deemed to have beneficial ownership of the shares of common stock held directly by the Sponsor, and disclaims any pecuniary interest of the reported shares other than to the extent of any economic interest he may have therein, directly or indirectly. F5 · ownership.nature: Rights owned by the Sponsor over which Joseph Hammer has voting and dispositive power. Read SEC document
March 31, 2023 Filed Apr 4, 2023 15:32 UTC	Trailblazer Merger Corp I TBMCU · Entity 86791	PurchaseCommon Stock	394,500	$10.00	$3,945,000.00	Disclosure SEC source: 0001213900-23-026829 · ownership.xml · nonDerivative · entry 1 Hammer Joseph D · CIK 0001576484 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnote Disclosed balance after: 2,119,500 F1 · shares: The reporting person acquired 394,500 units, each unit consisting of one share of Class A common stock and one right to receive one-tenth (1/10) share of Class A common stock. F2 · ownership.nature: Shares owned by Trailblazer Sponsor Group, LLC (the "Sponsor") over which Joseph Hammer has voting and dispositive power. F3 · ownership.nature: As the manager of the Sponsor, the reporting person may be deemed to have beneficial ownership of the shares of common stock held directly by the Sponsor, and disclaims any pecuniary interest of the reported shares other than to the extent of any economic interest he may have therein, directly or indirectly. Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.