Results of Operations and Financial Condition On August 5, 2026, Standard BioTools Inc. issued a press release which included information with respect to certain financial results for the three and six months ended June 30, 2026. The press release is attached hereto as Exhibit 99.1. The information set forth in the press release, except for the information set forth under the headings “Full Year 2026 Revenue Outlook” and “About Standard BioTools Inc.”, together with the forward-looking statem…

to the Original 8-K, as Exhibit 2.1 hereto. Terms used and not defined herein are used as defined in the Original 8-K. The Purchase Agreement, which provides for the acquisition by Multiplex Bio Inc. of the mass cytometry business of the Company (the “Transaction”), is not intended to provide any other factual information about the Transaction. The representations, warranties and covenants contained in the Purchase Agreement were made solely for purposes of such agreement and as of specific d…

and in the attached Exhibit 99.1 shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing. Forward-Looking Statements This Current Report on Form 8-K contains forward-looking statements within the meaning of the Private Securities Litigatio…

Entry into a Material Definitive Agreement. Termination, Waiver and Release Agreement On July 24, 2026, Standard BioTools Inc., a Delaware corporation (the “Company”), entered into a Termination, Waiver and Release Agreement (the “Termination Agreement”) with Illumina, Inc., a Delaware corporation (“Illumina”). Pursuant to the terms of the Termination Agreement, the Company has received a payment of approximately $30 million in cash from Illumina in exchange for the waiver and release of cert…

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing On July 22, 2026, Standard BioTools Inc. (NASDAQ: LAB) (the “Company”) received a notification letter (the “Notice”) from the Listing Qualifications Department (the “Staff”) of The Nasdaq Stock Market LLC (the “Nasdaq”) indicating that the Company did not meet the minimum bid price requirement set forth in Nasdaq’s Listing Rules for continued listing on The Nasdaq Global Select Market. The Noti…

The filing is about the approval of equity plans and amendments, not a management change.

Changes in Control of Registrant. To the extent required by this Item, the information included in

Unregistered Sales of Equity Securities. Certain of the shares of Standard BioTools Common Stock being issued in the Merger will be issued in private placements exempt from registration under Section 4(a)(2) of the Securities Act and/or Regulation D promulgated thereunder, because the offer and sale of such securities does not involve a “public offering” as defined in Section 4(a)(2) of the Securities Act. Neither this Current Report on Form 8-K nor any of the exhibits attached hereto is an o…

The excerpt does not provide specific details about a management change.

Entry into a Material Definitive Agreement. Merger Agreement On June 6, 2026, Standard BioTools Inc., a Delaware corporation (“Standard BioTools”), entered into an Agreement and Plan of Merger and Reorganization (the “Merger Agreement”) with Treeline Biosciences, Inc., a Delaware corporation (“Treeline”), and Siri Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Standard BioTools (“Merger Sub”), pursuant to which Standard BioTools and Treeline will combine in an all-s…

Regulation FD Disclosure. On June 8, 2026, Standard BioTools and Treeline issued a joint press release announcing the execution of the Merger Agreement (the “Press Release”), and Standard BioTools included prepared remarks and an investor presentation on its website. On June 8, 2026, Standard BioTools conducted a town hall for its employees related to the Transactions. Copies of the Press Release, the prepared remarks, the investor presentation and the town hall presentation are attached as E…

Sean Mackay: Compensatory arrangement of restricted stock units granted to an existing officer.

The filing describes a new change of control and severance plan for certain executives, which is not a departure or management change.

Results of Operations and Financial Condition On May 5, 2026, Standard BioTools Inc. issued a press release which included information with respect to certain financial results for the three months ended March 31, 2026. The press release is attached hereto as Exhibit 99.1. The information set forth in the press release, except for the information set forth under the headings “Full Year 2026 Revenue Outlook” and “About Standard BioTools Inc.”, together with the forward-looking statement discla…

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing On April 20, 2026, Standard BioTools Inc. (NASDAQ: LAB) (the “Company”) received a notification letter (the “Notice”) from the Listing Qualifications Department (the “Staff”) of The Nasdaq Stock Market LLC (the “Nasdaq”) indicating that the Company did not meet the minimum bid price requirement set forth in Nasdaq’s Listing Rules for continued listing on The Nasdaq Global Select Market. The Not…

Results of Operations and Financial Condition On February 24, 2026, Standard BioTools Inc. issued a press release which included information with respect to certain financial results for the three months and fiscal year ended December 31, 2025. The press release is attached hereto as Exhibit 99.1. The information set forth in the press release, except for the information set forth under the headings “Full Year 2026 Revenue Outlook” and “About Standard BioTools Inc.”, together with the forward…

Regulation FD Disclosure. On January 30, 2026, the Company issued the Press Release announcing the completion of the Transaction. A copy of the Press Release is furnished as Exhibit 99.1 hereto and is incorporated herein by reference. The information set forth in Items 2.02 and 7.01 and in the attached Exhibit 99.1 shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”), or incorporated by reference in any filing under t…

Completion of Acquisition or Disposition of Assets. On January 30, 2026, Standard BioTools Inc., a Delaware corporation (the “ Company ”) completed the previously announced sale of all of the equity interests of SomaLogic, Inc. (“S omaLogic ”), Sengenics Corporation LLC and Sengenics Corporation Pte Ltd (such equity interests, collectively, the “ Shares ”), the entities that operate the Company’s aptamer-based and functional proteomics business, including KREX, Single SOMAmer and translationa…

Results of Operations and Financial Condition. On January 30, 2026, the Company issued a press release (the “Press Release”), as described further under

Results of Operations and Financial Condition On January 8, 2026, Standard BioTools Inc. (the "Company") issued a press release, which included information with respect to certain preliminary financial results of the Company for the three months and fiscal year ended December 31, 2025. The press release is attached hereto as Exhibit 99.1 and incorporated herein by reference. The Company's preliminary financial results are unaudited and based on current expectations and may be adjusted as a re…

Results of Operations and Financial Condition On November 4, 2025, Standard BioTools Inc. issued a press release which included information with respect to certain financial results for the three and nine months ended September 30, 2025. The press release is attached hereto as Exhibit 99.1. The information set forth in the press release, except for the information set forth under the headings “Operational Restructuring,” “Full Year 2025 Revenue Outlook” and “About Standard BioTools Inc.,” tog…

Costs Associated with Exit or Disposal Activities On September 13, 2025, Standard BioTools Inc. (the “Company”) commenced a restructuring plan, including a reduction-in-force of approximately 15% of its total global workforce. The purpose of this restructuring plan, including the reduction-in-force, is to improve operational efficiency and reduce operating costs of its continuing operations in line with the Company’s current revenue projections, while supporting the execution of the Company’s…

Costs Associated with Exit or Disposal Activities On August 28, 2025, Standard BioTools Inc. (the “Company”) determined to consolidate its South San Francisco-based R&D capabilities into its Singapore facility to co-locate with its manufacturing operations and to implement a reduction-in-force of certain U.S. employees in the Company’s R&D function, including members of its management team. This is part of a plan to restructure the Company’s operating expenses to improve operational efficienc…

Results of Operations and Financial Condition On August 11, 2025, Standard BioTools Inc. issued a press release which included information with respect to certain financial results for the three and six months ended June 30, 2025. The press release is attached hereto as Exhibit 99.1. The information set forth in the press release, except for the information set forth under the heading “Full Year 2025 Revenue Outlook” and under the heading “About Standard BioTools Inc.,” together with the forw…

Compensatory arrangements and RSU retention awards for executives.