Nuburu, Inc. (BURU) IPO - S-1 Filing, Stock & Insider Activity
Nuburu, Inc. IPO - Status & S-1 Filing
- Ticker: BURU
- Status: Registered - S-1 filed with the SEC
- S-1 filed: 2025-12-12
- Expected price range: not yet disclosed (set in a later S-1/A or pricing amendment)
- SEC CIK: 0001814215 · View the S-1 on SEC EDGAR →
Nuburu, Inc. is pre-IPO, so no insider Form 4 transactions have been filed yet. Once insiders begin reporting trades after the offering, they will appear on this page automatically.
Track every registration update on the InsiderAlpha IPO tracker.
Last SEC filing
Nuburu, Inc. (BURU) - no SEC Form 4 insider filings recorded in the last 90 days. 5 Form 8-K material event filings were reported by BURU in the last 90 days. InsiderAlpha tracks every BURU SEC filing - Form 4, Form 144, and 8-K - in real time, including Rule 10b5-1 plan detection.
About Nuburu, Inc. (BURU)
Nuburu, Inc. trades under the ticker BURU. InsiderAlpha tracks 5 primary SEC Form 4 filings from 5 reporting insiders for BURU since 2024, sourced directly from SEC EDGAR.
| SEC CIK | 0001814215 |
|---|
90-Day SEC Filing Activity
| Form 8-K filings (90d) | 5 |
|---|---|
| Latest Form 4 filing | 2026-04-22 |
Recent BURU Insider Transactions (Form 4)
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Alessandro Zamboni | Co-Chief Executive Officer | P - Open-market purchase | 4.33M | $0.35 | $1.50M | SEC | |
| Alessandro Zamboni | Co-Chief Executive Officer | A - Grant or award | 355.5K | $0.00 | - | SEC | |
| David Seldin | 10% Owner | J - Other acquisition / disposition | 24.3K | $0.00 | - | SEC | |
| David Seldin | 10% Owner | J - Other acquisition / disposition | 20.0K | $0.00 | - | SEC | |
| David Seldin | 10% Owner | J - Other acquisition / disposition | 133.0K | $0.00 | - | SEC | |
| David Seldin | 10% Owner | J - Other acquisition / disposition | 25.5K | $0.00 | - | SEC | |
| David Seldin | 10% Owner | J - Other acquisition / disposition | 5.4K | $0.00 | - | SEC | |
| David Seldin | 10% Owner | J - Other acquisition / disposition | 61.1K | $0.00 | - | SEC | |
| David Seldin | 10% Owner | J - Other acquisition / disposition | 52.9K | $0.00 | - | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for Nuburu, Inc. (BURU). Updated in real time as new filings are submitted to the SEC.
Recent BURU Form 8-K Material Events
- - Item 1.01, 3.01, 3.03, 8.01, 9.01 [SEC]
- - Other · neutral [SEC]
Trading halt (H11) for BURU. BURU - - Item 1.01 [SEC]
- - Item 1.01 [SEC]
- - Item 1.01, 3.01, 3.02 [SEC]
Recent Insider Filings
- - Alessandro Zamboni (Co-Chief Executive Officer)
- - David Seldin (10% Owner)
- - Daniel J. Hirsch (Insider)
- - Kristi Hummel (Insider)
- - Lily Yan Hughes (Insider)
Form 4 Transaction Code Reference
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in BURU insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
BURU Insider Trading - FAQ
- What is the latest insider trade for BURU?
- Nuburu, Inc. (BURU) had 0 insider filings in the last 90 days, with the most recent on 2026-04-22. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
- How many insiders are buying BURU stock?
- 0 insider purchases of BURU were filed in the last 90 days.
- How many insiders are selling BURU stock?
- 0 insider sales of BURU were filed in the last 90 days.
- Where can I see BURU SEC filings (Form 4, 10-K, 10-Q, 8-K)?
- This page tracks BURU Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Learn More
- What is SEC Form 4?
- How to read insider buying signals
- Rule 10b5-1 trading plans explained
- The cluster buying signal
Open the live BURU dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.