Milestone Scientific Inc.
MLSS- Exchange
- NYSE
- Industry
- Orthopedic, Prosthetic & Surgical Appliances & Supplies
- SEC CIK
- 0000855683
No open-market purchases or sales by Milestone Scientific Inc. insiders were filed in the last 90 days; 29 institutions reported holding it in 13F filings for Q2 2026, worth $1.51M in total; no superinvestor holds it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Milestone Scientific 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 Milestone Scientific 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 |
|---|---|---|---|---|
| BP4 S.r.l. | 10% Owner | 8,896,765 | Oct 29, 2025 | 5 |
| McGeehan Michael | Director | 575,273 | Dec 20, 2024 | 0 |
| Osser Leonard | Director | 4,606,882 | Oct 23, 2024 | 0 |
| Goldman Neal I | Director | 1,905,858 | Aug 30, 2024 | 0 |
| Casamento Benedetta I | Director | 404,491 | Aug 30, 2024 | 0 |
| Trombetta Giandomenico | Director | 10,418,382 | Aug 30, 2024 | 0 |
| Milligan Peter J | President | 124,421 | Aug 10, 2023 | 0 |
| Haverhals Jan Adriaan | President | 319,546 | Aug 10, 2023 | 0 |
| Bernhard Leslie | Director | 79,268 | Dec 20, 2022 | 0 |
| Schiller Leonard M | Director | 434,449 | Oct 11, 2022 | 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 |
|---|---|---|---|---|---|---|---|---|---|
| Dec 28, 2021 (view filing) | Dec 27-28 | 1 day | Osser LeonardDirector | SSale | −9.60K | $2.09 | −$20.0K | −0.2%4.35M after | 2 lots |
| Dec 21, 2021 (view filing) | Dec 20-21 | 1 day | Osser LeonardDirector | SSaleCommon Stock, Par Value $0.001 | −9.85K | $2.03 | −$19.9K | −0.2%4.36M after | 2 lots |
| Dec 16, 2021 (view filing) | Dec 15-16 | 1 day | Osser LeonardDirector | SSale | −6.00K | $1.96 | −$11.8K | −0.1%4.37M after | 2 lots |
| Dec 14, 2021 (view filing) | Dec 13-14 | 1 day | Osser LeonardDirector | SSaleCommon Stock, Par Value $0.001 | −4.20K | $1.93 | −$8.09K | −0.1%4.38M after | 2 lots |
| Sep 17, 2021 (view filing) | Sep 15-17 | 2 days | Bernhard LeslieDirector | SSaleCommon Stock, Par Value $0.001 | −45.0K | $1.91 | −$85.8K | −60.5%29.4K after | 8 lots |