Nuburu Inc. (NYSEAMERICAN: BURU) shares surged 20.21% after hours to $0.34 on Wednesday after Co-CEO Alessandro Zamboni filed insider ownership disclosures with the Securities and Exchange Commission, detailing prior stock grants and convertible note conversions.
Insider Filing
The filing reported a grant of 1.77 million restricted stock units to Zamboni on October 1, 2025, which vested on October 31, 2025. Following the company’s 1-for-4.99 reverse stock split effective March 2, 2026, the award was restated to 355,511 shares.
Separately, his entity, an investment vehicle, Vanguard Holdings S.r.l., converted $1.4 million in convertible notes, along with accrued interest, into 4.33 million shares at $0.3453 per share in December 2025. The total transaction value was approximately $1.5 million.
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