---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-427115"
form_type: "8-K"
ticker: "BURU"
cik: "0001814215"
company_name: "Nuburu, Inc."
filed_at: "2026-10-21T10:00:36+00:00"
generated_at: "2026-10-21T10:05:30.227427+00:00"
event_type: "m_and_a"
sentiment: "negative"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Nuburu closes Tekne deal for €5.2M plus €20M earn-out, owns 70%; NYSE American issues delisting warning

## Summary
- Nuburu Defense bought 745,759 Tekne shares, about 67.1% stake, from Ambrogio D'Arrezzo, Carlo Ulacco and Andrea Lodi for €5.2M; with prior 2.9%, now owns 70%.
- Price: €1.2M paid at Oct. 15, 2026 closing; four €1M installments due Dec. 31, 2026, Jan. 31, Feb. 28 and Mar. 31, 2027; Nuburu jointly liable.
- Earn-out cut to €20M from €29.692M, paid as 5% of Tekne FY2027-2036 revenue, with €2M annual minimum and €20M cap; first payment due June 30, 2028.
- Nuburu waived €29.695M owed by Tekne, including €27.693M convertible receivable, as capital contribution; new Tekne board has 2 Nuburu directors, 1 shareholder director.
- NYSE American warned Oct. 19, 2026 over late disclosure of Sept. 30 Esousa side letter and Brick Lane $15M note cancellation; future violation triggers immediate suspension/delisting.

## SEC filing metadata
- accession: 0001193125-26-427115
- form_type: 8-K
- ticker: BURU
- cik: 0001814215
- company_name: Nuburu, Inc.
- filed_at: 2026-10-21T10:00:36+00:00
- event_type: m_and_a
- sentiment: negative
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 1.01, 2.01, 3.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1814215/000119312526427115/0001193125-26-427115-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1814215/000119312526427115/buru-20261015.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-427115
- JSON: https://secwatch.observer/filing/0001193125-26-427115.json
- Plain text: https://secwatch.observer/filing/0001193125-26-427115.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.