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Get MLSS alertsLeonard Osser is recorded as CEO at Milestone Scientific Inc. (MLSS). The newest filing on record that lists Leonard Osser as CEO at Milestone Scientific Inc. (MLSS) is dated April 30, 2021. Milestone Scientific Inc. reported in an 8-K filed November 13, 2025 that Leonard Osser resigned as director, effective November 7, 2025. The proxy statement of Milestone Scientific Inc. reports total compensation of $189,293 for Leonard Osser in fiscal 2021, including a base salary of $112,500. Disclosed compensation is on record for 4 fiscal years. Leonard Osser has spoken on 3 earnings calls across 1 company, most recently for Milestone Scientific Inc. on December 31, 2020. Milestone Scientific Inc. is classified in the Medical Instruments & Supplies industry within the Healthcare sector. Other leadership on record at Milestone Scientific Inc. includes Jan Adriaan (Arjan) Haverhals (CEO), Neal Goldman (CEO, Chairman and Board Member), Benedetta Casamento (Chairman and Board Member) and 7 others.
“On November 7, 2025, Mr. Leonard A. Osser, a director of Milestone Scientific Inc., resigned as a director of the company, effective immediately.”
“I am pleased to report that our revenue for the fourth quarter of 2020 increased sequentially by approximately $1 million, or 78% versus the third quarter of 2020.”
“I am pleased to report that our dental sales increased more than seven-fold versus the second quarter of 2020 as dental offices began to reopen across the country and around the world.”
“And thanks, everyone, for joining us on the call today. Considering that we just had a conference call on May 5, I'll try to keep this call short, providing more time for your questions.”
Start not stated–present
Last confirmed April 30, 2021
1991-01-01–2025-11-07
Medical Instruments & Supplies · Healthcare
CEO
1991-01-01–present
Compensation components disclosed in company proxy statements. Amounts are nominal USD; total is the company-reported figure.
| Fiscal year | Company | Role | Salary | Total |
|---|---|---|---|---|
| 2021 | Milestone Scientific Inc. (MLSS) | Interim Chief Executive Officer | $112,500 | $189,293 |
| 2020 | Milestone Scientific Inc. (MLSS) | Interim Chief Executive Officer | $300,000 | $1,930,668 |
| 2019 | Milestone Scientific Inc. (MLSS) | Interim Chief Executive Officer | $301,423 | $691,302 |
| 2018 | Milestone Scientific Inc. (MLSS) | Interim Chief Executive Officer | $304,167 | $540,484 |
