Alessandro Zamboni bought $1.5M of BURU
Co-Chief Executive Officer at Nuburu, Inc.. 4,332,525 shares at an average of $0.35, traded Dec 31, 2025, filed Apr 22, 2026.
Score components
- +25RoleCEO
- +25Trade size$1.5M at market
- +8Relative to holdingsFirst purchase: no shares before this trade
- 0Price contextNo price history yet
- 0ClusterNo other insider buying within 14 days
- 0Repeat buyingFirst buy in 90 days
- 0Track recordToo few past buys to judge (0 with prices)
What happened after comparable buys
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001193125-26-170692, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Oct 1, 2025 | AGrant or award Common Stock | +355,511 | $0.00 | $0 | 355,511 | Apr 22, 2026 |
| Dec 31, 2025 | POpen-market purchase Common Stockindirect: By Vanguard Holdings S.r.l. | +4,332,525 | $0.35 | $1.5M | 4,332,525 | Apr 22, 2026 |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.