Entry into a Material Definitive Agreement. On August 27, 2026, Datacentrex, Inc. (the “Company”) entered into a Common Unit Purchase Agreement (the “Purchase Agreement”) with ELNG Equity LLC (“ELNG”), pursuant to which the Company agreed to purchase, and ELNG agreed to sell, 23,076,923 Class A Common Units of ELNG (the “Units”) for an aggregate purchase price of approximately $30,000,000 (the “Purchase Price”). The closing of the transactions contemplated by the Purchase Agreement (the “Clos…

This Amendment is being filed solely to correct the item under which the information was reported. The disclosure is now presented under

Results of Operations and Financial Condition. On August 24, 2026, Datacentrex, Inc. issued a press release announcing that it has secured colocation capacity for the deployment of more than 500 additional ElphaPex DG2 Scrypt ASIC miners. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

Results of Operations and Financial Condition. On August 12, 2026, Datacentrex, Inc. announced financial results for the quarter ended June 30, 2026. A copy of the related press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference. The information included herein and in Exhibit 99.1 shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (“Exchange Act”), or otherwise subject to the li…

Results of Operations and Financial Condition. On May 14, 2026, Datacentrex, Inc. announced financial results for the quarter ended March 31, 2026. A copy of the related press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference. The information included herein and in Exhibit 99.1 shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (“Exchange Act”), or otherwise subject to the liab…

Results of Operations and Financial Condition. On April 13, 2026, Datacentrex, Inc. announced financial results for the year ended December 31, 2025 . A copy of the related press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference. The information included herein and in Exhibit 99.1 shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (“Exchange Act”), or otherwise subject to the l…

Entry into a Material Definitive Agreement Public Offering On March 26, 2026, Datacentrex, Inc. (the “Company”) entered into a placement agency agreement (the “Placement Agency Agreement”) with Dominari Securities LLC (the “Placement Agent”), pursuant to which the Company agreed to issue and sell directly to investors (the “Investors”), in a best efforts offering (the “Offering”), an aggregate of (i) 4,510,000 shares (the “Shares”) of the Company’s common stock, par value $0.001 (the “Common…

Other Information. As previously reported on Datacentrex, Inc.’s (formerly, Thumzup Media Corporation) (the “Company’s”) Current Report on Form 8-K filed with the Securities and Exchange Commission on December 15, 2025, TZUP Merger Sub, Inc., a wholly-owned subsidiary of the Company, merged with and into Dogehash Technologies, Inc. (“Dogehash”) with Dogehash surviving as a wholly-owned subsidiary of the Company (the “Acquisition”). In connection with the Acquisition, the Company is filing upd…

Other Events. In July 2025, holders of the Company’s common stock and Series D Convertible Preferred Stock (the “Shares”) issued in connection with the Company’s acquisition of Dogehash Technologies, Inc. (the “Acquisition”) entered into lock-up agreements (the “Lock-Up-Agreements”), pursuant to which for a period of 180 days following the issuance of the Shares (the “Lock-Up Period”), subject to certain exclusions, without the prior written consent of the Company or Dominari Securities, LLC,…

CEO and Chairman of the Board of Directors — Parker Scott: The company entered into an employment agreement with Parker Scott, the CEO and Chairman of the Board.

Results of Operations and Financial Condition. On December 23, 2025, Datacentrex, Inc. (the “Company”) announced the unaudited results of operations of its wholly-owned subsidiary Dogehash Technologies, Inc. for the quarter ended September 30, 2025. A copy of the related press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference. The information included herein and in Exhibit 99.1 shall not be deemed “filed” for purposes of Section 18…

Other Events On December 15, 2025, the Company issued a press release announcing the closing of the Acquisition. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

Chief Executive Officer and Chairman of the Board of Directors — Parker Scott: Parker Scott was promoted to Chief Executive Officer and Chairman of the Board, while Robert Steele transitioned from CEO to CFO.

Unregistered Sales of Equity Securities. The information set forth under

Changes in Control of Registrant. The information set forth in Items 2.01, 3.02 and

Completion of Acquisition or Disposition of Assets. As previously reported on the Company’s Current Report on Form 8-K filed with the Securities and Exchange Commission (“SEC”) on August 22, 2025 and November 26, 2025, on August 18, 2025, Datacentrex, Inc. (formerly, Thumzup Media Corporation), a Nevada corporation (the “Company”), entered into an Agreement and Plan of Merger (the “Merger Agreement”) with TZUP Merger Sub, Inc., a wholly-owned subsidiary of the Company (“Merger Sub”), and Doge…

Other Events. Supplemental Disclosures Supplement to Interests of TZUP Executive Officers and Directors in the Acquisition On October 30, 2025, and the Company filed the Proxy Statement which included a description of certain interests in the Acquisition held by some of the Company’s executive officers and directors that may be different from, or in addition to, TZUP stockholders’ interests generally. Such interests may create potential conflicts of interest. The Company’s board of directors…

Director and member of the audit committee — Christopher Ensey: Christopher Ensey was appointed as a director and to the audit committee, filling a vacancy.

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing. On October 4, 2025, Robert Haag informed Thumzup Media Corporation (the “Company”) that he resigned from the Company’s Board of Directors (the “Board”) as well as the Company’s audit committee, compensation committee and nominating and corporate governance committee effective as of October 4, 2025. Mr. Haag’s resignation was not the result of any disagreement with the Company, any matter relat…

The content is a signature and authorization statement, not related to any management change.

Other Events. As previously announced, on September 23, 2025, the board of directors (the “Board”) of Thumzup Media Corporation (the “Company”) approved a share repurchase program pursuant to which the Company may repurchase up to $10 million of its shares of common stock through December 31, 2026. On September 30, 2025, the Board authorized the extension of the window under which the broker-dealer executing the stock buyback may repurchase shares under the share repurchase program from Septe…

Entry into a Material Definitive Agreement. On September 24, 2025, Thumzup Media Corporation (the “Company”) loaned to Dogehash Technologies, Inc. (“Dogehash”) $2.5 million (the “Loan”) which was evidenced by a secured promissory note (the “Note”) issued by Dogehash and USDE Acquisition, Inc., a wholly-owned subsidiary of Dogehash (“USDE” and together with Dogehash, the “Maker”) in favor of the Company. The Loan accrues interest at a rate of 8% per annum and matures upon the earliest of: (i)…

Regulation FD Disclosure On September 24, 2025, Thumzup Media Corporation (the “Company”) issued a press release with respect to, among other things, its share repurchase program. A copy of the press release is furnished hereto as Exhibit 99.1 and incorporated herein by reference.

Other Events. Share Repurchase Program On September 23, 2025, the Company’s Board of Directors authorized a share repurchase program, pursuant to which the Company may repurchase up to $10 million of its shares of common stock through December 31, 2026. This share repurchase program replaces and supersedes the share repurchase program approved by the Company’s Board of Directors on February 26, 2025, which had authorized the Company to repurchase up to $1 million of its shares of common stock…

Other Events On September 15, 2025, the Board of Directors (the “ Board ”) of Thumzup Media Corporation (the “ Company ”) unanimously approved the extension of the open trading window pursuant to which the Company may repurchase shares of its common stock, par value $0.001 per share, on the open market to September 30, 2025. Additionally, the Board has unanimously approved the extension of any future open trading windows through the last day of the end of each fiscal quarter if the Company el…