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KRRO US Equity

Korro Bio, Inc.Health Care · Pharmaceutical Preparations · CIK 1703647 · FY ends Dec 31
$13.95
+0.73 (+5.52%)
USD · as of 2026-08-19 · marketstack

Legal & controls

5 of 5 annual reports readable here

Item 3 and Item 9A as filed · every verdict is the registrant’s own sentence, printed below it · a filing that fails an extraction gate reads “not extracted”

Fiscal yearFiledItem 3ICFRdisclosure controlsmaterial weaknessFiling
2025-12-312026-03-12none statedeffectiveeffectivenone in Item 9AEDGAR

Item 3 · From time to time, we may be involved in various other claims and legal proceedings relating to claims arising out of our operations. We are not currently a party to any material legal proceedings.

Item 9A · ICFR · Based on such assessment, management has concluded that our internal control over financial reporting was effective as of December 31, 2025.

Item 9A · disclosure controls · Based on the evaluation of our disclosure controls and procedures as of December 31, 2025, our Principal Executive Officer and Interim Principal Financial Officer concluded that, as of such date, our disclosure controls and procedures were effective at the reasonable assurance level.

2024-12-312025-03-18none statedeffectiveeffectivenone in Item 9AEDGAR

Item 3 · From time to time, we may be involved in various other claims and legal proceedings relating to claims arising out of our operations. We are not currently a party to any material legal proceedings other than as disclosed below. On June 3, 2021 and June 22, 2021, purported stockholders of Frequency filed putative class action lawsuits in the U.S. District Court for the District of Massachusetts against Frequency and Frequency’s Chief Executive Officer, President, and Director, David Lucchino. On March 21, 2022, the two lawsuits were consolidated into a single lawsuit, Quinones et al. v. Frequency Therapeutics, Inc. et al. and on May 16, 2022, Frequency’s Chief Development Officer, Dr. Carl Le Bel, was added as a defendant. The plaintiffs alleged violations of Sections 10(b), 20(a) and Rule 10b5 of the Exchange Act due to allegedly false and misleading statements and omissions about Frequency’s Phase 2a clinical trial (FX-322-202) for its product candidate FX-322 in Frequency’s public disclosures between October 29, 2020 and March 22, 2021. The lawsuit sought, among other things, damages in connection with Frequency’s allegedly artificially inflated stock price between October 29, 20…

Item 9A · ICFR · Based on such assessment, management has concluded that our internal control over financial reporting was effective as of December 31, 2023.

Item 9A · disclosure controls · Based on the evaluation of our disclosure controls and procedures as of December 31, 2024, our Principal Executive Officer and Interim Principal Financial Officer concluded that, as of such date, our disclosure controls and procedures were effective at the reasonable assurance level.

2023-12-312024-03-26none statednot extractedeffectivenone in Item 9AEDGAR

Item 3 · From time to time, we may be involved in various other claims and legal proceedings relating to claims arising out of our operations. We are not currently a party to any material legal proceedings other than as disclosed below. On June 3, 2021 and June 22, 2021, purported stockholders of Frequency filed putative class action lawsuits in the U.S. District Court for the District of Massachusetts against the Frequency and the Frequency’s Chief Executive Officer, President, and Director, David Lucchino. On March 21, 2022, the two lawsuits were consolidated into a single lawsuit, Quinones et al. v. Frequency Therapeutics, Inc. et al. and on May 16, 2022, Frequency’s Chief Development Officer, Dr. Carl Le Bel, was added as a defendant. The plaintiffs alleged violations of Sections 10(b), 20(a) and Rule 10b5 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, due to allegedly false and misleading statements and omissions about Frequency’s Phase 2a clinical trial (FX-322-202) for its product candidate FX-322 in Frequency’s public disclosures between October 29, 2020 and March 22, 2021. The lawsuit sought, among other things, damages in connection with Frequency’s alleg…

Item 9A · disclosure controls · Based on such evaluation, our Chief Executive Officer and Chief Financial Officer have concluded that our disclosure controls and procedures were effective at the reasonable assurance level as of December 31, 2023.

2022-12-312023-03-10in the noteseffectiveeffectivenone in Item 9AEDGAR

Item 3 · See Note 16, “Commitments and contingencies – Legal Contingencies”, for more information.

Item 9A · ICFR · Based on this evaluation, management concluded that our internal control over financial reporting was effective as of December 31, 2022.

Item 9A · disclosure controls · Based on the evaluation of our disclosure controls and procedures as of December 31, 2022, our Chief Executive Officer and Vice President, Finance and Operations concluded that, as of such date, our disclosure controls and procedures were effective at the reasonable assurance level.

2021-12-312022-03-15described hereeffectiveeffectivenone in Item 9AEDGAR

Item 3 · On June 3, 2021 and June 22, 2021, purported stockholders of our company filed putative class action lawsuits in the U.S. District Court for the District of Massachusetts against us entitled Evans v. Frequency Therapeutics, Inc. et al. and Hingston v. Frequency Therapeutics, Inc. et al., respectively. The lawsuits allege violations of Section 10(b), 20(a) and Rule 10b5 of the Securities Exchange Act of 1934, as amended, due to allegedly false and misleading statements and omissions about our Phase 2a clinical trial (FX-322-202) for our product candidate FX-322 in our public disclosures between November 16, 2020 and March 22, 2021. The lawsuits seek, among other things, damages in connection with our allegedly artificially inflated stock price between November 16, 2020, and March 22, 2021 as a result of those allegedly false and misleading statements and omissions, as well as interest, attorneys’ fees and costs. We can make no assurances as to the time or resources that will need to be devoted to these lawsuits or their final outcomes, or the impact, if any, of these lawsuits or any proceedings on our business, financial condition, results of operations and cash flows. We are vigoro…

Item 9A · ICFR · Based on this evaluation, management concluded that our internal control over financial reporting was effective as of December 31, 2021.

Item 9A · disclosure controls · Based on the evaluation of our disclosure controls and procedures as of December 31, 2021, our Chief Executive Officer and Chief Financial Officer concluded that, as of such date, our disclosure controls and procedures were effective at the reasonable assurance level.

5 of 5 annual reports on record have their filing text cached on this host; the rest are listed with their EDGAR link and no extraction, because this surface never fetches from SEC on a page load.

  • Item 3 and Item 9A are located in the filing HTML already cached on this host and read with the same line-anchored item matcher and largest-gap body disambiguation the filing-narrative pass uses for Item 1A and Item 7 — no fetch, no model, no summarization.
  • A heading is accepted as a section only when it is not a table-of-contents row (a trailing page number), not a quoted reference in prose, and names its own section; the span must then clear a per-item length band and carry readable text after the heading. Anything that fails a gate is served as 'not extracted' with the reason — never as a default value.
  • An effectiveness conclusion is read only from a sentence that names its own control set (disclosure controls and procedures, or internal control over financial reporting) and states an outcome. Conditional sentences — the standard limitations paragraph and forward-looking remediation language — are excluded, because they are hypotheses rather than conclusions.
  • When a filing's own sentences disagree — an effective conclusion beside an unremediated material-weakness disclosure, or two conclusions of opposite sign — no verdict is asserted. A wrong 'controls were effective' reading is worse than no reading.
  • Every verdict is shown beside the verbatim sentence it was read from. The excerpt is the filing's own words, capped at 1,200 characters; the filing itself is one link away.