Every material Form 8-K Nuburu, Inc. has filed with the SEC since September 16, 2026, read and summarized by AI: what happened, the key figures, whether it reads positive or negative for shareholders, and how big a deal it is (impact 1-5). Newest first; each brief links to its own page and to the filing on SEC.gov.
Nuburu completed the purchase of an additional 67.1% interest in Tekne S.p.A. on October 15, 2026, bringing its stake to 70%, with a fixed price of €5,200,000 and up to €20,000,000 in earn-out payments tied to Tekne's revenue. Separately, NYSE Regulation issued Nuburu a public warning letter on October 19, 2026, stating that any future violation that could lead to such a letter would result in immediate suspension and delisting proceedings.
Nuburu Defense acquired 745,759 Tekne shares on October 15, 2026, a stake of about 67.1% that brings its total holding to 70%.
Purchase price is €5,200,000: €1,200,000 paid October 15, 2026, and €4,000,000 deferred in €1,000,000 installments through March 31, 2027.
Earn-out totals €20,000,000, with a guaranteed annual minimum of €2,000,000 for fiscal 2027 to 2036, payable by June 30 beginning in 2028.
NYSE American warning letter, dated October 19, 2026, cites late disclosure of a side letter and a Heckler & Koch AG share agreement effective September 30, 2026.
Effective September 30, 2026, Nuburu entered into a side letter with Esousa Group Holdings and other purchasers under its July 15, 2026 Securities Purchase Agreement. The letter changes warrant valuation terms, requires certain Series B preferred holders to forfeit shares received at conversion prices below $0.10, and sets a monthly penalty if conversion shares are not registered on time. Separately, Brick Lane Capital Management returned 295,000 Heckler & Koch AG shares in exchange for cancellation of a $15 million convertible note.
Side letter effective September 30, 2026, with Esousa Group Holdings and other purchasers, revising the Black Scholes Value definition in the July 17, 2026 warrant.
Certain Series B preferred holders agree to forfeit common stock received from conversions at prices below $0.10 per share; a monthly penalty applies if conversion shares are not registered on time.
Brick Lane Capital Management receives back 295,000 Heckler & Koch AG shares, and the $15 million Subordinated Convertible Note issued February 6, 2026 is cancelled.
Nuburu said its unaudited financial statements for the three and six months ended June 30, 2026 should no longer be relied upon because of a material error in valuing a convertible note receivable from Tekne S.p.A. The company will restate those results in an amendment to its Q2 2026 Form 10-Q, and the correction increases the value of its assets by $761,001.
Error involved using a Tekne equity value of €15.2 million ($17.4 million) instead of €25.4 million ($29.0 million) to value the note as of June 30, 2026.
Fair value of the Tekne convertible note receivable rises from €20,523,000 ($23,446,999) to €21,189,000 ($24,208,000), an increase of $761,001.
The change in fair value of convertible notes receivable for the three and six months ended June 30, 2026 increases by the same amount.
Audit Committee discussed the restatement with independent auditor WithumSmith+Brown, PC.
Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.
Only material 8-Ks get a brief: results, deals, executive changes, restructuring, impairments, delisting notices, restatements, cybersecurity incidents and other disclosed events. Routine filings (vote results, exhibits only) are skipped. Every Nuburu, Inc. filing is on SEC EDGAR ↗. 8-K briefs of other companies →