Zamboni Alessandro bought BURU

December 31, 2025 · Form 4 insider transaction

Zamboni Alessandro bought 4,332,525 shares of Nuburu, Inc. at $0.35 per share, a transaction worth $1.50M. The trade was recorded as open-market purchase and disclosed on an SEC Form 4, filed 112 days after the transaction.

Direction
Acquired (buy-side)
Shares
4,332,525
Price
$0.35
Total value
$1.50M
RoleOfficer, Director
SecurityCommon Stock
Transaction codeP: Open-market purchase
Transaction dateDecember 31, 2025
Filing dateApril 22, 2026
Shares owned after4,332,525
OwnershipIndirect
10b5-1 planNo
AmendedNo

Footnotes

On December 31, 2025, Vanguard Holdings S.r.l., an entity owned by the reporting person, converted (i) a convertible promissory note in the amount of $545,000 issued by Nuburu, Inc. (the "Company"), plus outstanding interest, and (ii) a convertible promissory note in the amount of $900,000 issued by the Company, plus outstanding interest, in exchange for 21,619,298 shares of common stock at a conversion price equal to a 33.33% discount to the lowest daily volume weighted average price as reported by Bloomberg L.P. during the five days prior to the conversion date. The number of shares acquired and the price per share in the table have been adjusted for the 2026 Reverse Stock Split.

View the original Form 4 on SEC EDGAR
Zamboni Alessandro bought BURU: December 31, 2025 | Insider Trading Screener