NYSE · CIK 0001814215
BURU Nuburu, Inc.
Insider trading from SEC Form 4. Last filing Apr 22, 2026. Close $1.00 on Oct 12, 2026, +2670% from the 52-week low and -61% from the high.
In brief
Nuburu, Inc. (BURU) has 5 SEC Form 4 filings on file from 5 insiders, the latest filed on Apr 22, 2026. No insider bought or sold on the open market in the last 90 days; rows filed in that time are grants, exercises, tax withholding and other transactions that carry no view on the price.
1 open-market trade has been scored at BURU. The newest: Alessandro Zamboni (Co-Chief Executive Officer) bought $1.5M of stock on Dec 31, 2025, filed Apr 22, 2026, scored 58 (moderate).
Last 90 days
Price and insider trades, last year
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
Open-market buys and sells at Nuburu, Inc., scored.
| Score | Insider | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 58Moderate | Alessandro Zamboni Co-Chief Executive Officer buy | $1.5M 4,332,525 shares | - | - |
Transactions
Every row filed, 12 in all.
| Date | Insider | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Oct 1, 2025 | Alessandro Zamboni Co-Chief Executive Officer | AGrant or award Common Stock | +355,511 | $0.00 | $0 | 355,511 | Apr 22, 2026 |
| Dec 31, 2025 | Alessandro Zamboni Co-Chief Executive Officer | POpen-market purchase Common Stockindirect: By Vanguard Holdings S.r.l. | +4,332,525 | $0.35 | $1.5M | 4,332,525 | Apr 22, 2026 |
| Nov 21, 2024 | David Seldin owner | JOther Common Stock | -133,024 | $0.00 | $0 | 0 | Nov 25, 2024 |
| Nov 21, 2024 | David Seldin owner | JOther Common Stock | -52,862 | $0.00 | $0 | 0 | Nov 25, 2024 |
| Nov 21, 2024 | David Seldin owner | JOther Common Stock | -24,314 | $0.00 | $0 | 0 | Nov 25, 2024 |
| Nov 21, 2024 | David Seldin owner | JOther Common Stock | -19,979 | $0.00 | $0 | 0 | Nov 25, 2024 |
| Nov 21, 2024 | David Seldin owner | JOther Common Stock | +61,085 | $0.00 | $0 | 67,694 | Nov 25, 2024 |
| Nov 21, 2024 | David Seldin owner | JOther Common Stock | +25,544 | $0.00 | $0 | 25,863 | Nov 25, 2024 |
| Nov 21, 2024 | David Seldin owner | JOther Common Stock | +5,391 | $0.00 | $0 | 5,551 | Nov 25, 2024 |
| Jan 2, 2024 | John R Bolton director | AGrant or award Stock Option (right to buy)derivative | +41,667 | $0.00 | $0 | 41,667 | Jan 4, 2024 |
| Dec 6, 2023 | Ronald Lee Nicol director | POpen-market purchase Warrant (right to buy)derivativeindirect: See footnote | +4,400,000 | - | - | 4,400,000 | Dec 8, 2023 |
| Nov 1, 2023 | Brian Knaley Chief Executive Officer | AGrant or award Stock Option (right to buy)derivative | +500,000 | $0.00 | $0 | 500,000 | Nov 3, 2023 |
Insiders
Everyone who has filed a Form 4 here.
- John R Boltondirector
- Brian KnaleyChief Executive Officer
- Ronald Lee Nicoldirector
- David Seldinowner
- Alessandro ZamboniCo-Chief Executive Officer
Questions about BURU
Answered from the filings on this page, as of the latest one.
Are insiders buying BURU?
No. In the last 90 days no insider at Nuburu, Inc. bought or sold shares on the open market according to SEC Form 4 filings. The rows on file from that period are grants, exercises, tax withholding or other transactions, which carry no view on the price.
Who was the last insider to trade BURU on the open market?
Alessandro Zamboni (Co-Chief Executive Officer) bought $1.5M of BURU on Dec 31, 2025 and filed the Form 4 on Apr 22, 2026. InsiderTell scored 58 (moderate).
How many insiders file Form 4 at Nuburu, Inc.?
5 people have filed a Form 4 at Nuburu, Inc., among them John R Bolton (director), Brian Knaley (Chief Executive Officer), Ronald Lee Nicol (director). Officers, directors and holders of more than 10% of a share class must report their trades within two business days.
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.