MLSS MILESTONE SCIENTIFIC INC.
NYSE · SEC CIK 855683 · EDGAR
- Bought, last 12 months
- $0 0 purchases by 0 insiders
- Sold, last 12 months
- $167.8K 5 sales by 1 insiders
- Filings on record
- 90 since 2021-09-17, latest 2025-10-29
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| BP4 S.r.l. | 10% | — | $167.8K |
Transactions 94
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M | 2025-10-29 | 2025-10-22+ | MLSS | BP4 S.r.l. | 10% | S - Sale | $0.4366 | -194.4K | 8.90M | -2% | -$84.9K |
| M | 2025-10-23 | 2025-10-20+ | MLSS | BP4 S.r.l. | 10% | S - Sale | $0.4438 | -64.0K | 9.13M | -0.7% | -$28.4K |
| M | 2025-10-17 | 2025-10-10+ | MLSS | BP4 S.r.l. | 10% | S - Sale | $0.544 | -50.2K | 9.18M | -0.5% | -$27.3K |
| M | 2025-10-09 | 2025-10-03 | MLSS | BP4 S.r.l. | 10% | S - Sale | $0.45 | -19.2K | 9.24M | -0.2% | -$8,644 |
| M | 2025-10-09 | 2025-10-07+ | MLSS | BP4 S.r.l. | 10% | S - Sale | $0.465 | -40.0K | 9.23M | -0.4% | -$18.6K |
| 2025-09-16 | 2025-09-11 | MLSS | BP4 S.r.l. | 10% | S - Sale | $0.59 | -10.0K | 9.26M | -0.1% | -$5,900 | |
| 2025-07-22 | 2025-07-17 | MLSS | BP4 S.r.l. | 10% | S - Sale | $0.64 | -10.0K | 9.30M | -0.1% | -$6,400 | |
| M | 2025-07-10 | 2025-07-03+ | MLSS | BP4 S.r.l. | 10% | S - Sale | $0.6758 | -92.9K | 9.32M | -1.0% | -$62.8K |
| M | 2025-07-02 | 2025-06-23+ | MLSS | BP4 S.r.l. | 10% | S - Sale | $0.7864 | -27.9K | 9.42M | -0.3% | -$21.9K |
| M | 2025-06-20 | 2025-06-16+ | MLSS | BP4 S.r.l. | 10% | S - Sale | $0.8971 | -11.7K | 9.45M | -0.1% | -$10.5K |
| 2025-06-16 | 2025-06-11 | MLSS | BP4 S.r.l. | 10% | S - Sale | $0.9 | -23.8K | 9.46M | -0.3% | -$21.4K | |
| M | 2025-06-11 | 2025-06-09+ | MLSS | BP4 S.r.l. | 10% | S - Sale | $0.91 | -50.4K | 9.48M | -0.5% | -$45.8K |
| M | 2025-06-10 | 2025-06-05+ | MLSS | BP4 S.r.l. | 10% | S - Sale | $0.9031 | -87.1K | 9.53M | -0.9% | -$78.6K |
| M | 2025-06-06 | 2025-06-03+ | MLSS | BP4 S.r.l. | 10% | S - Sale | $0.9271 | -14.0K | 9.62M | -0.1% | -$13.0K |
| M | 2025-06-03 | 2025-05-30+ | MLSS | BP4 S.r.l. | 10% | S - Sale | $0.939 | -22.1K | 9.64M | -0.2% | -$20.8K |
| M | 2025-05-30 | 2025-05-28+ | MLSS | BP4 S.r.l. | 10% | S - Sale | $0.96 | -17.6K | 9.66M | -0.2% | -$16.9K |
| 2024-12-20 | 2024-12-19 | MLSS | McGeehan Michael | Dir | S - Sale | $0.78 | -20.0K | 575.3K | -3% | -$15.6K | |
| 2024-10-23 | 2024-10-22 | MLSS | OSSER LEONARD | Dir | S - Sale | $0.93 | -108.0K | 4.61M | -2% | -$100.4K | |
| 2024-09-27 | 2024-09-24 | MLSS | McGeehan Michael | Dir | S - Sale | $1.00 | -209 | 595.3K | -0.0% | -$209 | |
| M | 2024-09-24 | 2024-09-19+ | MLSS | McGeehan Michael | Dir | S - Sale | $1.00 | -2,800 | 595.5K | -0.5% | -$2,800 |
| 2024-08-30 | 2024-08-28 | MLSS | GOLDMAN NEAL I | Dir | A - Grant | $0.89 | +134.8K | 1.91M | +8% | +$120.0K | |
| 2024-08-30 | 2024-08-28 | MLSS | OSSER LEONARD | Dir | A - Grant | $0.89 | +112.4K | 4.71M | +2% | +$100.0K | |
| 2024-08-30 | 2024-08-28 | MLSS | McGeehan Michael | Dir | A - Grant | $0.89 | +123.6K | 596.5K | +26% | +$110.0K | |
| 2024-08-30 | 2024-08-28 | MLSS | Trombetta Giandomenico | Dir | A - Grant | $0.89 | +112.4K | 10.42M | +1% | +$100.0K | |
| 2024-08-30 | 2024-08-28 | MLSS | CASAMENTO BENEDETTA I | Dir | A - Grant | $0.89 | +134.8K | 404.5K | +50% | +$120.0K | |
| 2024-08-21 | 2024-08-21 | MLSS | OSSER LEONARD | Dir | S - Sale | $0.95 | -141.9K | 4.60M | -3% | -$134.8K | |
| 2024-04-23 | 2024-04-23 | MLSS | GOLDMAN NEAL I | Dir | A - Grant | $0.55 | +22.1K | 1.77M | +1% | +$12.2K | |
| 2024-04-22 | 2024-04-22 | MLSS | GOLDMAN NEAL I | Dir | A - Grant | $0.54 | +56.1K | 1.75M | +3% | +$30.3K | |
| 2023-12-13 | 2023-12-11 | MLSS | GOLDMAN NEAL I | Dir | A - Grant | $0.63 | +125.0K | 1.69M | +8% | +$78.8K | |
| M | 2023-10-23 | 2023-10-19+ | MLSS | Trombetta Giandomenico | Dir | D - Sale to Iss | $0.9582 | -3,400 | 10.31M | -0.0% | -$3,258 |
| M | 2023-10-19 | 2023-10-18+ | MLSS | Trombetta Giandomenico | Dir | D - Sale to Iss | $0.9458 | -21.6K | 10.33M | -0.2% | -$20.4K |
| 2023-08-10 | 2023-06-28 | MLSS | CASAMENTO BENEDETTA I | Dir | A - Grant | $0.89 | +134.8K | 269.7K | +100% | +$120.0K | |
| 2023-08-10 | 2023-05-17 | MLSS | Haverhals Jan Adriaan | Pres | A - Grant | $1.01 | +165.8K | 319.5K | +108% | +$167.5K | |
| 2023-08-10 | 2023-06-28 | MLSS | GOLDMAN NEAL I | Dir | A - Grant | $0.89 | +134.8K | 1.57M | +9% | +$120.0K | |
| 2023-08-10 | 2023-08-01 | MLSS | Milligan Peter J | Pres | A - Grant | $1.08 | +46.3K | 124.4K | +59% | +$50.0K | |
| 2023-08-10 | 2023-06-28 | MLSS | OSSER LEONARD | Dir | A - Grant | $0.89 | +112.4K | 4.62M | +2% | +$100.0K | |
| 2023-08-10 | 2023-06-28 | MLSS | Trombetta Giandomenico | Dir | A - Grant | $0.89 | +112.4K | 10.33M | +1% | +$100.0K | |
| 2022-12-20 | 2022-12-19 | MLSS | Bernhard Leslie | Dir | S - Sale | $0.5 | -79.3K | 79.3K | -50% | -$39.6K | |
| 2022-12-20 | 2022-12-19 | MLSS | GOLDMAN NEAL I | Dir | P - Purchase | $0.5 | +55.3K | 1.43M | +4% | +$27.7K | |
| 2022-11-28 | 2022-11-23 | MLSS | GOLDMAN NEAL I | Dir | P - Purchase | $0.62 | +45.1K | 1.38M | +3% | +$28.0K | |
| 2022-11-28 | 2022-11-23 | MLSS | Bernhard Leslie | Dir | S - Sale | $0.64 | -14.4K | 158.5K | -8% | -$9,189 | |
| M | 2022-11-22 | 2022-11-21+ | MLSS | GOLDMAN NEAL I | Dir | P - Purchase | $0.63 | +54.9K | 1.33M | +4% | +$34.6K |
| A | 2022-10-11 | 2022-06-13 | MLSS | GOLDMAN NEAL I | Dir | A - Grant | $0.82 | +122.0K | 1.27M | +11% | +$100.0K |
| A | 2022-10-11 | 2022-06-13 | MLSS | CASAMENTO BENEDETTA I | Dir | A - Grant | $0.82 | +122.0K | 134.8K | +947% | +$100.0K |
| A | 2022-10-11 | 2022-06-13 | MLSS | Trombetta Giandomenico | Dir | A - Grant | $0.82 | +122.0K | 10.22M | +1% | +$100.0K |
| A | 2022-10-11 | 2022-06-13 | MLSS | OSSER LEONARD | Dir | A - Grant | $0.82 | +122.0K | 4.35M | +3% | +$100.0K |
| A | 2022-10-11 | 2022-06-13 | MLSS | McGeehan Michael | Dir | A - Grant | $0.82 | +125.0K | 349.3K | +56% | +$102.5K |
| A | 2022-10-11 | 2022-06-13 | MLSS | Bernhard Leslie | Dir | A - Grant | $0.82 | +158.5K | 172.9K | +1,104% | +$130.0K |
| A | 2022-10-11 | 2022-06-13 | MLSS | SCHILLER LEONARD M | Dir | A - Grant | $0.82 | +128.0K | 434.4K | +42% | +$105.0K |
| 2022-06-17 | 2022-06-16 | MLSS | GOLDMAN NEAL I | Dir | P - Purchase | $0.75 | +9,720 | 1.20M | +0.8% | +$7,290 | |
| 2022-06-15 | 2022-06-13 | MLSS | McGeehan Michael | Dir | A - Grant | $0.82 | +31.2K | 255.6K | +14% | +$25.6K | |
| 2022-06-15 | 2022-06-13 | MLSS | Bernhard Leslie | Dir | A - Grant | $0.82 | +39.6K | 54.0K | +276% | +$32.5K | |
| 2022-06-15 | 2022-06-13 | MLSS | SCHILLER LEONARD M | Dir | A - Grant | $0.82 | +32.0K | 338.4K | +10% | +$26.2K | |
| 2022-06-15 | 2022-06-13 | MLSS | OSSER LEONARD | Dir | A - Grant | $0.82 | +30.5K | 4.26M | +0.7% | +$25.0K | |
| 2022-06-15 | 2022-06-13 | MLSS | Trombetta Giandomenico | Dir, 10% | A - Grant | $0.82 | +30.5K | 10.13M | +0.3% | +$25.0K | |
| 2022-06-15 | 2022-06-13 | MLSS | CASAMENTO BENEDETTA I | Dir | A - Grant | $0.82 | +30.5K | 43.4K | +237% | +$25.0K | |
| 2022-06-15 | 2022-06-14 | MLSS | GOLDMAN NEAL I | Dir | P - Purchase | $0.8 | +10.6K | 1.18M | +0.9% | +$8,466 | |
| 2022-06-15 | 2022-06-13 | MLSS | GOLDMAN NEAL I | Dir | A - Grant | $0.82 | +30.5K | 1.17M | +3% | +$25.0K | |
| 2022-06-15 | 2022-06-15 | MLSS | GOLDMAN NEAL I | Dir | P - Purchase | $0.8 | +5,270 | 1.19M | +0.4% | +$4,216 | |
| 2022-06-09 | 2022-06-08 | MLSS | CASAMENTO BENEDETTA I | Dir | A - Grant | $1.00 | +12.9K | 12.9K | New | +$12.9K | |
| 2022-06-02 | 2022-06-01 | MLSS | GOLDMAN NEAL I | Dir | P - Purchase | $0.89 | +54.9K | 1.14M | +5% | +$48.8K | |
| 2022-05-27 | 2022-05-25 | MLSS | GOLDMAN NEAL I | Dir | P - Purchase | $0.89 | +13.2K | 1.09M | +1% | +$11.8K | |
| M | 2022-05-24 | 2022-05-23+ | MLSS | GOLDMAN NEAL I | Dir | A - Grant | $0.8751 | +22.7K | 1.06M | +2% | +$19.9K |
| M | 2022-05-20 | 2022-05-19+ | MLSS | GOLDMAN NEAL I | Dir | A - Grant | $0.8559 | +24.2K | 1.05M | +2% | +$20.7K |
| 2022-04-20 | 2022-04-18 | MLSS | OSSER LEONARD | Dir | S - Sale | $1.12 | -9,842 | 4.23M | -0.2% | -$11.0K | |
| M | 2022-04-13 | 2022-04-11+ | MLSS | OSSER LEONARD | Dir | S - Sale | $1.19 | -16.7K | 4.24M | -0.4% | -$20.0K |
| M | 2022-04-06 | 2022-04-05 | MLSS | Bernhard Leslie | Dir | S - Sale | $1.36 | -15.0K | 17.1K | -47% | -$20.4K |
| M | 2022-04-06 | 2022-04-05 | MLSS | SCHILLER LEONARD M | Dir | S - Sale | $1.40 | -30.0K | 311.4K | -9% | -$42.0K |
| M | 2022-04-04 | 2022-04-01+ | MLSS | OSSER LEONARD | Dir | S - Sale | $1.45 | -20.1K | 4.25M | -0.5% | -$29.1K |
| 2022-03-29 | 2022-03-28 | MLSS | OSSER LEONARD | Dir | S - Sale | $1.33 | -7,110 | 4.27M | -0.2% | -$9,456 | |
| M | 2022-03-22 | 2022-03-21+ | MLSS | OSSER LEONARD | Dir | S - Sale | $1.28 | -15.6K | 4.29M | -0.4% | -$20.0K |
| M | 2022-03-15 | 2022-03-14+ | MLSS | OSSER LEONARD | Dir | S - Sale | $1.20 | -16.6K | 4.30M | -0.4% | -$20.0K |
| M | 2022-03-08 | 2022-03-07+ | MLSS | OSSER LEONARD | Dir | S - Sale | $1.43 | -13.9K | 4.31M | -0.3% | -$19.9K |
| M | 2022-03-02 | 2022-02-28+ | MLSS | OSSER LEONARD | Dir | S - Sale | $1.32 | -15.1K | 4.33M | -0.3% | -$20.0K |
| M | 2022-02-23 | 2022-02-22+ | MLSS | OSSER LEONARD | Dir | S - Sale | $1.25 | -15.9K | 4.34M | -0.4% | -$19.9K |
| M | 2022-02-15 | 2022-02-14+ | MLSS | OSSER LEONARD | Dir | S - Sale | $1.21 | -16.5K | 4.36M | -0.4% | -$20.0K |
| M | 2022-02-08 | 2022-02-07+ | MLSS | OSSER LEONARD | Dir | S - Sale | $1.28 | -15.6K | 4.38M | -0.4% | -$20.0K |
| M | 2022-02-01 | 2022-01-31+ | MLSS | OSSER LEONARD | Dir | S - Sale | $1.29 | -15.4K | 4.40M | -0.4% | -$20.0K |
| M | 2022-01-25 | 2022-01-24+ | MLSS | OSSER LEONARD | Dir | S - Sale | $1.45 | -13.8K | 4.40M | -0.3% | -$20.0K |
| M | 2022-01-19 | 2022-01-18+ | MLSS | OSSER LEONARD | Dir | S - Sale | $1.72 | -11.6K | 4.42M | -0.3% | -$20.0K |
| M | 2022-01-11 | 2022-01-10+ | MLSS | OSSER LEONARD | Dir | S - Sale | $2.02 | -9,900 | 4.43M | -0.2% | -$20.0K |
| 2022-01-06 | 2022-01-04 | MLSS | OSSER LEONARD | Dir | S - Sale | $2.09 | -4,400 | 4.44M | -0.1% | -$9,196 | |
| 2022-01-03 | 2022-01-03 | MLSS | OSSER LEONARD | Dir | S - Sale | $2.15 | -5,000 | 4.44M | -0.1% | -$10.8K | |
| 2022-01-03 | 2021-12-31 | MLSS | OSSER LEONARD | Dir | A - Grant | $2.06 | +48.5K | 4.40M | +1% | +$100.0K | |
| I | 2022-01-03 | 2021-12-31 | MLSS | OSSER LEONARD | Dir | A - Grant | $2.06 | +48.5K | 4.45M | +1% | +$100.0K |
| M | 2021-12-28 | 2021-12-27+ | MLSS | OSSER LEONARD | Dir | S - Sale | $2.09 | -9,600 | 4.36M | -0.2% | -$20.0K |
| M | 2021-12-21 | 2021-12-20+ | MLSS | OSSER LEONARD | Dir | S - Sale | $2.03 | -9,850 | 4.36M | -0.2% | -$19.9K |
| M | 2021-12-16 | 2021-12-15+ | MLSS | OSSER LEONARD | Dir | S - Sale | $1.96 | -6,000 | 4.37M | -0.1% | -$11.8K |
| M | 2021-12-14 | 2021-12-13+ | MLSS | OSSER LEONARD | Dir | S - Sale | $1.93 | -4,200 | 4.38M | -0.1% | -$8,085 |
| D | 2021-12-08 | 2021-12-06 | MLSS | Trombetta Giandomenico | Dir, 10% | M - OptEx | $1.61 | +99.4K | 10.26M | +1.0% | +$160.0K |
| D | 2021-12-02 | 2021-11-30 | MLSS | OSSER LEONARD | Dir | M - OptEx | $1.71 | +62.1K | 4.31M | +1% | +$106.2K |
| DI | 2021-12-02 | 2021-12-01 | MLSS | OSSER LEONARD | Dir | M - OptEx | $0.5 | +71.2K | 4.38M | +2% | +$35.6K |
| D | 2021-11-12 | 2021-11-09 | MLSS | OSSER LEONARD | Dir | M - OptEx | $1.93 | +171.4K | 4.31M | +4% | +$330.9K |
| M | 2021-09-17 | 2021-09-15+ | MLSS | Bernhard Leslie | Dir | S - Sale | $1.91 | -45.0K | 72.5K | -38% | -$85.8K |
Purchase Sale Sale after option exercise All abbreviations