---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-21-028310"
form_type: "8-K"
ticker: "MLSS"
cik: "0000855683"
company_name: "MILESTONE SCIENTIFIC INC."
filed_at: "2021-12-10T23:59:59+00:00"
generated_at: "2026-06-28T02:15:42.676679+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.25
calibrated_materiality_score: 0.25
confidence: "high"
source: SEC EDGAR
---

# Milestone director adopts 10b5-1 plan to sell ~$1M stock at $20k/week

## Summary
- Board member and former CEO Leonard Osser adopts Rule 10b5-1 trading plan effective December 13, 2021.
- Plan to sell shares to restore approximately $1,000,000 at a rate of $20,000 per week.
- Proceeds to cover exercise price, tax obligations from stock option exercises and stock compensation, and diversification.

## SEC filing metadata
- accession: 0001437749-21-028310
- form_type: 8-K
- ticker: MLSS
- cik: 0000855683
- company_name: MILESTONE SCIENTIFIC INC.
- filed_at: 2021-12-10T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.25
- calibrated_materiality_score: 0.25
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/855683/000143774921028310/0001437749-21-028310-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/855683/000143774921028310/mlss20211209_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-21-028310
- JSON: https://secwatch.observer/filing/0001437749-21-028310.json
- Plain text: https://secwatch.observer/filing/0001437749-21-028310.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.