Nuburu, Inc.
BURU- Exchange
- NYSE
- Industry
- Miscellaneous Electrical Machinery, Equipment & Supplies
- SEC CIK
- 0001814215
No open-market purchases or sales by Nuburu, Inc. insiders were filed in the last 90 days; 33 institutions reported holding it in 13F filings for Q2 2026, worth $1.48M in total; no superinvestor holds it.
Other share classesBURUW
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Nuburu, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Nuburu, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Zamboni Alessandro | Co-Chief Executive Officer | 4,332,525Indirect | Apr 22, 2026 | 1 |
| Haring-Smith Whitney | 10% Owner | 5,551 | Nov 25, 2024 | 0 |
| Anzu Nuburu V LLC | 10% Owner | 5,551 | Nov 25, 2024 | 0 |
| Anzu Nuburu LLC | 10% Owner | 5,551 | Nov 25, 2024 | 0 |
| Seldin David | 10% Owner | 5,551 | Nov 25, 2024 | 0 |
| Herman Debrah | 10% Owner | 5,551 | Nov 25, 2024 | 0 |
| Anzu Partners LLC | 10% Owner | 5,551 | Nov 25, 2024 | 0 |
| Anzu Nuburu II LLC | 10% Owner | 5,551 | Nov 25, 2024 | 0 |
| Anzu Nuburu III LLC | 10% Owner | 5,551 | Nov 25, 2024 | 0 |
| CST Global LLC | 10% Owner | 5,551 | Nov 25, 2024 | 0 |
| David & Jennifer Michael Family Ltd Partnership | 10% Owner | 5,551 | Nov 25, 2024 | 0 |
| Hirsch Daniel J. | Director | 25,000 | Oct 4, 2024 | 0 |
| Hughes Lily Yan | Director | 25,000 | Oct 4, 2024 | 0 |
| Hummel Kristi | Director | 25,000 | Oct 4, 2024 | 0 |
| Knaley Brian | Chief Executive Officer | 1,828,996 | May 21, 2024 | 0 |
| Bolton John R | Director | – | Apr 2, 2024 | 0 |
| Nicol Ronald Lee | Director | 170,696 | Dec 8, 2023 | 0 |
| Mora Elizabeth | Director | 25,000 | Sep 1, 2023 | 0 |
| Zediker Mark | Chief Executive Officer | 4,318,203 | Jul 20, 2023 | 0 |
| Faircloth Brian | Chief Operating Officer | 515,394 | Jul 20, 2023 | 0 |
| Garling Jill | 10% Owner | – | Jun 23, 2023 | 0 |
| Almgren Ake | Director | 37,476 | Apr 20, 2023 | 0 |
| Eby Matthew | Chief Financial Officer | – | Feb 7, 2023 | 0 |
| Krim Philip | Director, 10% Owner | 950,000Indirect | Feb 7, 2023 | 0 |
| Tailwind Sponsor LLC | 10% Owner | 950,000 | Feb 7, 2023 | 0 |
| Hollod Christopher John | Chief Executive Officer | – | Feb 7, 2023 | 0 |
| Lu Wisdom | Director | – | Feb 7, 2023 | 0 |
| Sheriff Alan | Director | – | Feb 7, 2023 | 0 |
| Quist Will | Director | – | Feb 7, 2023 | 0 |
| Revsin Boris | Director | – | Feb 7, 2023 | 0 |
| Capital Ventures International | 10% Owner | 91,569 | Jan 24, 2023 | 0 |
| G1 Execution Services, LLC | 10% Owner | 91,569 | Jan 24, 2023 | 0 |
| Susquehanna Securities, LLC | 10% Owner | 91,569 | Jan 24, 2023 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Apr 22, 2026 (view filing)4:53 PM ET | Dec 31, 2025 | 112 daysLate | Zamboni AlessandroCo-Chief Executive Officer | PPurchase | +4.33M | $0.3453 | +$1.50M | New position4.33M after | |
| Dec 8, 2023 (view filing) | Dec 6 | 2 days | Nicol Ronald LeeDirector | PPurchase | +4.40M | – | – | –4.40M after | Derivative |
| Aug 11, 2023 (view filing)7:11 PM ET | Aug 9-11 | 2 days | Haring-Smith Whitney and 9 others10% Owner | SSale | −624.4K | $0.7372 | −$460.3K | −99.0%6.38K after | 27 lots |
| Aug 9, 2023 (view filing)9:46 PM ET | Aug 7-8 | 2 days | Haring-Smith Whitney and 9 others10% Owner | SSale | −8.07M | $1.09 | −$8.76M | −99.9%6.79K after | 18 lots |
| Jun 23, 2023 (view filing)5:32 PM ET | Jun 23 | Same day | Garling Jill10% Owner | PPurchase | +8.72M | – | – | –7.27M after | Derivative2 lotsPrice outlier |
| Jun 23, 2023 (view filing)5:05 PM ET | Jun 16-22 | 7 daysLate | Haring-Smith Whitney and 9 others10% Owner | SSale | −8.60K | $0.7104 | −$6.11K | −0.1%10.1M after | 10 lots |
| Jun 23, 2023 (view filing)4:04 PM ET | Jun 23 | Same day | Nicol Ronald LeeDirector | PPurchase | +2.91M | – | – | –1.45M after | Derivative2 lotsPrice outlier |
| Jun 16, 2023 (view filing)9:59 PM ET | Jun 14-15 | 2 days | Haring-Smith Whitney and 9 others10% Owner | SSale | −8.65K | $0.741 | −$6.41K | −0.1%10.1M after | 10 lots |
| Jun 15, 2023 (view filing)8:17 PM ET | Jun 13 | 2 days | Garling Jill10% Owner | PPurchase | +5.81M | – | – | –2.91M after | Derivative2 lotsPrice outlier |
| May 24, 2023 (view filing) | May 22 | 2 days | Zediker MarkChief Executive Officer | PPurchase | +10.0K | $0.79 | +$7.90K | +0.2%4.32M after |