{"ticker": "MLSS.OB", "overview": {"cik": "855683", "ticker": "MLSS", "name": "MILESTONE SCIENTIFIC INC.", "industry": "Orthopedic, Prosthetic & Surgical Appliances & Supplies", "country": "United States", "sic": "3842", "announcements": [{"form": "EFFECT", "date": "2026-09-28", "title": "Form EFFECT", "accession": "9999999995-26-003082", "price_sensitive": false}, {"form": "S-3/A", "date": "2026-09-18", "title": "Form S-3/A", "accession": "0001493152-26-043419", "price_sensitive": false}, {"form": "S-8", "date": "2026-09-08", "title": "Employee share plan", "accession": "0001493152-26-041803", "price_sensitive": false}, {"form": "S-3", "date": "2026-09-08", "title": "Shelf registration", "accession": "0001493152-26-041795", "price_sensitive": false}, {"form": "10-Q", "date": "2026-08-13", "title": "Quarterly report", "accession": "0001493152-26-037761", "price_sensitive": true}, {"form": "8-K", "date": "2026-07-31", "title": "Material event", "accession": "0001493152-26-035574", "price_sensitive": true}, {"form": "8-K", "date": "2026-07-29", "title": "Material event", "accession": "0001493152-26-035264", "price_sensitive": true}, {"form": "8-K", "date": "2026-06-25", "title": "Material event", "accession": "0001493152-26-030044", "price_sensitive": true}, {"form": "DEF 14A", "date": "2026-06-22", "title": "Proxy statement", "accession": "0001493152-26-029558", "price_sensitive": false}, {"form": "PRER14A", "date": "2026-06-10", "title": "Form PRER14A", "accession": "0001493152-26-028086", "price_sensitive": false}, {"form": "EFFECT", "date": "2026-06-09", "title": "Form EFFECT", "accession": "9999999995-26-001935", "price_sensitive": false}, {"form": "424B1", "date": "2026-06-09", "title": "Form 424B1", "accession": "0001493152-26-027932", "price_sensitive": false}, {"form": "CORRESP", "date": "2026-06-08", "title": "Form CORRESP", "accession": "0001493152-26-027804", "price_sensitive": false}, {"form": "UPLOAD", "date": "2026-06-08", "title": "Form UPLOAD", "accession": "0000000000-26-005746", "price_sensitive": false}, {"form": "PRE 14A", "date": "2026-06-05", "title": "Form PRE 14A", "accession": "0001493152-26-027544", "price_sensitive": false}, {"form": "S-3", "date": "2026-06-02", "title": "Shelf registration", "accession": "0001493152-26-026888", "price_sensitive": false}, {"form": "10-Q", "date": "2026-05-13", "title": "Quarterly report", "accession": "0001493152-26-022701", "price_sensitive": true}, {"form": "8-K", "date": "2026-05-06", "title": "Material event", "accession": "0001493152-26-021512", "price_sensitive": true}, {"form": "8-K", "date": "2026-05-06", "title": "Material event", "accession": "0001493152-26-021506", "price_sensitive": true}, {"form": "10-K/A", "date": "2026-05-05", "title": "Form 10-K/A", "accession": "0001493152-26-021293", "price_sensitive": false}, {"form": "D", "date": "2026-04-23", "title": "Form D", "accession": "0001493152-26-018601", "price_sensitive": false}, {"form": "8-K", "date": "2026-04-21", "title": "Material event", "accession": "0001493152-26-018231", "price_sensitive": true}, {"form": "8-K", "date": "2026-04-02", "title": "Material event", "accession": "0001493152-26-014892", "price_sensitive": true}, {"form": "10-K", "date": "2026-03-31", "title": "Annual report", "accession": "0001493152-26-014117", "price_sensitive": true}, {"form": "8-K", "date": "2026-03-11", "title": "Material event", "accession": "0001493152-26-009581", "price_sensitive": true}]}, "description": "MLSS.OB trades as MLSS.OB. Privy Trades holds 53 insider filings for the company, from April 2007 to May 2015. Across those, 4 insiders disclosed 4 open-market purchases totalling $96.25K against 7 sales totalling $229.26K. The most recent filing on record is dated 21 May 2015.", "exchange": null, "stats": {"buy_n": 4, "buy_sum": 96249.95999999999, "sell_n": 7, "sell_sum": 229264.2751, "net": -133014.3151, "insiders": 4, "first_date": "2007-04-04", "last_date": "2015-05-21"}, "metrics": {"ticker": "MLSS.OB", "has_prices": false}, "trades": [{"id": "0001209191-15-047304", "src": "INSIDERS", "ticker": "MLSS.OB", "cik": "855683", "company": "MILESTONE SCIENTIFIC INC.", "company_raw": "MILESTONE SCIENTIFIC INC.", "who": "Leonard M. Schiller", "who_key": "SCHILLER LEONARD M", "role": "Director", "person_type": "BOARD", "person_label": "Board", "action": "BUY", "amount": 6250.0, "score": 25.5, "price_sensitive": false, "cluster": 0, "industry": "Orthopedic, Prosthetic & Surgical Appliances & Supplies", "country": "United States", "headline": "A director backs MLSS.OB with $6K", "source_url": "https://www.sec.gov/Archives/edgar/data/855683/000120919115047304/0001209191-15-047304-index.htm", "trade_date": "2015-05-21", "timestamp": "2015-05-21", "mins": 6024463}, {"id": "0001209191-15-044797", "src": "INSIDERS", "ticker": "MLSS.OB", "cik": "855683", "company": "MILESTONE SCIENTIFIC INC.", "company_raw": "MILESTONE SCIENTIFIC INC.", "who": "Leonard Osser", "who_key": "OSSER LEONARD", "role": "CEO, Director, 10% Owner", "person_type": "CEO", "person_label": "CEOs", "action": "BUY", "amount": 60000.0, "score": 46.6, "price_sensitive": true, "cluster": 0, "industry": "Orthopedic, Prosthetic & Surgical Appliances & Supplies", "country": "United States", "headline": "CEO loads up: $60K into MLSS.OB", "source_url": "https://www.sec.gov/Archives/edgar/data/855683/000120919115044797/0001209191-15-044797-index.htm", "trade_date": "2015-05-19", "timestamp": "2015-05-19", "mins": 6027343}, {"id": "0001209191-15-028748", "src": "INSIDERS", "ticker": "MLSS.OB", "cik": "855683", "company": "MILESTONE SCIENTIFIC INC.", "company_raw": "MILESTONE SCIENTIFIC INC.", "who": "Leonard Osser", "who_key": "OSSER LEONARD", "role": "CEO, Director, 10% Owner", "person_type": "CEO", "person_label": "CEOs", "action": "NON-SIGNAL", "amount": 0.0, "score": 0.0, "price_sensitive": false, "cluster": 0, "industry": "Orthopedic, Prosthetic & Surgical Appliances & Supplies", "country": "United States", "headline": "CEO files routine paperwork on MLSS.OB \u2014 no open-market trade", "source_url": "https://www.sec.gov/Archives/edgar/data/855683/000120919115028748/0001209191-15-028748-index.htm", "trade_date": "2014-11-20", "timestamp": "2014-11-20", "mins": 6286543}, {"id": "0001209191-15-028786", "src": "INSIDERS", "ticker": "MLSS.OB", "cik": "855683", "company": "MILESTONE SCIENTIFIC INC.", "company_raw": "MILESTONE SCIENTIFIC INC.", "who": "Joseph D'Agostino", "who_key": "D'Agostino Joseph", "role": "CFO & COO", "person_type": "C_SUITE", "person_label": "C-Suite", "action": "NON-SIGNAL", "amount": 57499.99999999999, "score": 0.0, "price_sensitive": false, "cluster": 0, "industry": "Orthopedic, Prosthetic & Surgical Appliances & Supplies", "country": "United States", "headline": "CFO files routine paperwork on MLSS.OB \u2014 no open-market trade", "source_url": "https://www.sec.gov/Archives/edgar/data/855683/000120919115028786/0001209191-15-028786-index.htm", "trade_date": "2014-11-20", "timestamp": "2014-11-20", "mins": 6286543}, {"id": "0001209191-13-055475", "src": "INSIDERS", "ticker": "MLSS.OB", "cik": "855683", "company": "MILESTONE SCIENTIFIC INC.", "company_raw": "MILESTONE SCIENTIFIC INC.", "who": "Cardenas Pablo Felipe Serna", "who_key": "Serna Cardenas Pablo Felipe", "role": "Director", "person_type": "BOARD", "person_label": "Board", "action": "SELL", "amount": 22500.0, "score": 0.0, "price_sensitive": false, "cluster": 0, "industry": "Orthopedic, Prosthetic & Surgical Appliances & Supplies", "country": "United States", "headline": "A director trims MLSS.OB: $22K", "source_url": "https://www.sec.gov/Archives/edgar/data/855683/000120919113055475/0001209191-13-055475-index.htm", "trade_date": "2013-11-29", "timestamp": "2013-11-29", "mins": 6799183}, {"id": "0001209191-13-045879", "src": "INSIDERS", "ticker": "MLSS.OB", "cik": "855683", "company": "MILESTONE SCIENTIFIC INC.", "company_raw": "MILESTONE SCIENTIFIC INC.", "who": "Cardenas Pablo Felipe Serna", "who_key": "Serna Cardenas Pablo Felipe", "role": "Director", "person_type": "BOARD", "person_label": "Board", "action": "SELL", "amount": 12000.0, "score": 0.0, "price_sensitive": false, "cluster": 0, "industry": "Orthopedic, Prosthetic & Surgical Appliances & Supplies", "country": "United States", "headline": "A director trims MLSS.OB: $12K", "source_url": "https://www.sec.gov/Archives/edgar/data/855683/000120919113045879/0001209191-13-045879-index.htm", "trade_date": "2013-09-10", "timestamp": "2013-09-10", "mins": 6914383}, {"id": "0001209191-13-043320", "src": "INSIDERS", "ticker": "MLSS.OB", "cik": "855683", "company": "MILESTONE SCIENTIFIC INC.", "company_raw": "MILESTONE SCIENTIFIC INC.", "who": "Cardenas Pablo Felipe Serna", "who_key": "Serna Cardenas Pablo Felipe", "role": "Director", "person_type": "BOARD", "person_label": "Board", "action": "SELL", "amount": 55997.636, "score": 0.0, "price_sensitive": false, "cluster": 0, "industry": "Orthopedic, Prosthetic & Surgical Appliances & Supplies", "country": "United States", "headline": "A director trims MLSS.OB: $56K", "source_url": "https://www.sec.gov/Archives/edgar/data/855683/000120919113043320/0001209191-13-043320-index.htm", "trade_date": "2013-08-27", "timestamp": "2013-08-27", "mins": 6934543}, {"id": "0001209191-13-040466", "src": "INSIDERS", "ticker": "MLSS.OB", "cik": "855683", "company": "MILESTONE SCIENTIFIC INC.", "company_raw": "MILESTONE SCIENTIFIC INC.", "who": "K. Tucker Andersen", "who_key": "ANDERSEN K TUCKER", "role": "10% Owner", "person_type": "TEN_PCT", "person_label": "10% Owners", "action": "NON-SIGNAL", "amount": 860081.6, "score": 0.0, "price_sensitive": false, "cluster": 0, "industry": "Orthopedic, Prosthetic & Surgical Appliances & Supplies", "country": "United States", "headline": "10% owner files routine paperwork on MLSS.OB \u2014 no open-market trade", "source_url": "https://www.sec.gov/Archives/edgar/data/855683/000120919113040466/0001209191-13-040466-index.htm", "trade_date": "2013-08-09", "timestamp": "2013-08-09", "mins": 6960463}, {"id": "0001209191-13-030249", "src": "INSIDERS", "ticker": "MLSS.OB", "cik": "855683", "company": "MILESTONE SCIENTIFIC INC.", "company_raw": "MILESTONE SCIENTIFIC INC.", "who": "Leonard M. Schiller", "who_key": "SCHILLER LEONARD M", "role": "Director", "person_type": "BOARD", "person_label": "Board", "action": "NON-SIGNAL", "amount": 14800.0, "score": 0.0, "price_sensitive": false, "cluster": 0, "industry": "Orthopedic, Prosthetic & Surgical Appliances & Supplies", "country": "United States", "headline": "Director files routine paperwork on MLSS.OB \u2014 no open-market trade", "source_url": "https://www.sec.gov/Archives/edgar/data/855683/000120919113030249/0001209191-13-030249-index.htm", "trade_date": "2013-05-31", "timestamp": "2013-05-31", "mins": 7061263}, {"id": "0001209191-13-030254", "src": "INSIDERS", "ticker": "MLSS.OB", "cik": "855683", "company": "MILESTONE SCIENTIFIC INC.", "company_raw": "MILESTONE SCIENTIFIC INC.", "who": "Leslie Bernhard", "who_key": "Bernhard Leslie", "role": "Director", "person_type": "BOARD", "person_label": "Board", "action": "NON-SIGNAL", "amount": 0.0, "score": 0.0, "price_sensitive": false, "cluster": 0, "industry": "Orthopedic, Prosthetic & Surgical Appliances & Supplies", "country": "United States", "headline": "Director files routine paperwork on MLSS.OB \u2014 no open-market trade", "source_url": "https://www.sec.gov/Archives/edgar/data/855683/000120919113030254/0001209191-13-030254-index.htm", "trade_date": "2013-05-31", "timestamp": "2013-05-31", "mins": 7061263}, {"id": "0001209191-13-030323", "src": "INSIDERS", "ticker": "MLSS.OB", "cik": "855683", "company": "MILESTONE SCIENTIFIC INC.", "company_raw": "MILESTONE SCIENTIFIC INC.", "who": "Cardenas Pablo Felipe Serna", "who_key": "Serna Cardenas Pablo Felipe", "role": "Director", "person_type": "BOARD", "person_label": "Board", "action": "NON-SIGNAL", "amount": 14800.0, "score": 0.0, "price_sensitive": false, "cluster": 0, "industry": "Orthopedic, Prosthetic & Surgical Appliances & Supplies", "country": "United States", "headline": "Director files routine paperwork on MLSS.OB \u2014 no open-market trade", "source_url": "https://www.sec.gov/Archives/edgar/data/855683/000120919113030323/0001209191-13-030323-index.htm", "trade_date": "2013-05-31", "timestamp": "2013-05-31", "mins": 7061263}, {"id": "0001209191-13-018183", "src": "INSIDERS", "ticker": "MLSS.OB", "cik": "855683", "company": "MILESTONE SCIENTIFIC INC.", "company_raw": "MILESTONE SCIENTIFIC INC.", "who": "Leslie Bernhard", "who_key": "Bernhard Leslie", "role": "Director", "person_type": "BOARD", "person_label": "Board", "action": "NON-SIGNAL", "amount": 12114.9, "score": 0.0, "price_sensitive": false, "cluster": 0, "industry": "Orthopedic, Prosthetic & Surgical Appliances & Supplies", "country": "United States", "headline": "Director files routine paperwork on MLSS.OB \u2014 no open-market trade", "source_url": "https://www.sec.gov/Archives/edgar/data/855683/000120919113018183/0001209191-13-018183-index.htm", "trade_date": "2013-03-07", "timestamp": "2013-03-07", "mins": 7183663}, {"id": "0001209191-13-007232", "src": "INSIDERS", "ticker": "MLSS.OB", "cik": "855683", "company": "MILESTONE SCIENTIFIC INC.", "company_raw": "MILESTONE SCIENTIFIC INC.", "who": "Joseph D'Agostino", "who_key": "D'Agostino Joseph", "role": "CFO & COO", "person_type": "C_SUITE", "person_label": "C-Suite", "action": "NON-SIGNAL", "amount": 50000.64, "score": 0.0, "price_sensitive": false, "cluster": 0, "industry": "Orthopedic, Prosthetic & Surgical Appliances & Supplies", "country": "United States", "headline": "CFO files routine paperwork on MLSS.OB \u2014 no open-market trade", "source_url": "https://www.sec.gov/Archives/edgar/data/855683/000120919113007232/0001209191-13-007232-index.htm", "trade_date": "2012-12-31", "timestamp": "2012-12-31", "mins": 7278703}, {"id": "0001209191-13-007234", "src": "INSIDERS", "ticker": "MLSS.OB", "cik": "855683", "company": "MILESTONE SCIENTIFIC INC.", "company_raw": "MILESTONE SCIENTIFIC INC.", "who": "Leonard Osser", "who_key": "OSSER LEONARD", "role": "CEO, Director, 10% Owner", "person_type": "CEO", "person_label": "CEOs", "action": "NON-SIGNAL", "amount": 99999.90000000001, "score": 0.0, "price_sensitive": false, "cluster": 0, "industry": "Orthopedic, Prosthetic & Surgical Appliances & Supplies", "country": "United States", "headline": "CEO files routine paperwork on MLSS.OB \u2014 no open-market trade", "source_url": "https://www.sec.gov/Archives/edgar/data/855683/000120919113007234/0001209191-13-007234-index.htm", "trade_date": "2012-12-31", "timestamp": "2012-12-31", "mins": 7278703}, {"id": "0001209191-12-035741", "src": "INSIDERS", "ticker": "MLSS.OB", "cik": "855683", "company": "MILESTONE SCIENTIFIC INC.", "company_raw": "MILESTONE SCIENTIFIC INC.", "who": "Leonard Osser", "who_key": "OSSER LEONARD", "role": "CEO, Director, 10% Owner", "person_type": "CEO", "person_label": "CEOs", "action": "BUY", "amount": 14999.96, "score": 39.8, "price_sensitive": false, "cluster": 0, "industry": "Orthopedic, Prosthetic & Surgical Appliances & Supplies", "country": "United States", "headline": "The whole bench is buying MLSS.OB \u2014 3 and counting", "source_url": "https://www.sec.gov/Archives/edgar/data/855683/000120919112035741/0001209191-12-035741-index.htm", "trade_date": "2012-06-27", "timestamp": "2012-06-27", "mins": 7547983}, {"id": "0001209191-12-035745", "src": "INSIDERS", "ticker": "MLSS.OB", "cik": "855683", "company": "MILESTONE SCIENTIFIC INC.", "company_raw": "MILESTONE SCIENTIFIC INC.", "who": "Leonard M. Schiller", "who_key": "SCHILLER LEONARD M", "role": "Director", "person_type": "BOARD", "person_label": "Board", "action": "NON-SIGNAL", "amount": 0.0, "score": 0.0, "price_sensitive": false, "cluster": 0, "industry": "Orthopedic, Prosthetic & Surgical Appliances & Supplies", "country": "United States", "headline": "Director files routine paperwork on MLSS.OB \u2014 no open-market trade", "source_url": "https://www.sec.gov/Archives/edgar/data/855683/000120919112035745/0001209191-12-035745-index.htm", "trade_date": "2012-06-27", "timestamp": "2012-06-27", "mins": 7547983}, {"id": "0001209191-12-035758", "src": "INSIDERS", "ticker": "MLSS.OB", "cik": "855683", "company": "MILESTONE SCIENTIFIC INC.", "company_raw": "MILESTONE SCIENTIFIC INC.", "who": "Cardenas Pablo Felipe Serna", "who_key": "Serna Cardenas Pablo Felipe", "role": "Director", "person_type": "BOARD", "person_label": "Board", "action": "NON-SIGNAL", "amount": 0.0, "score": 0.0, "price_sensitive": false, "cluster": 0, "industry": "Orthopedic, Prosthetic & Surgical Appliances & Supplies", "country": "United States", "headline": "Director files routine paperwork on MLSS.OB \u2014 no open-market trade", "source_url": "https://www.sec.gov/Archives/edgar/data/855683/000120919112035758/0001209191-12-035758-index.htm", "trade_date": "2012-06-27", "timestamp": "2012-06-27", "mins": 7547983}, {"id": "0001209191-12-035763", "src": "INSIDERS", "ticker": "MLSS.OB", "cik": "855683", "company": "MILESTONE SCIENTIFIC INC.", "company_raw": "MILESTONE SCIENTIFIC INC.", "who": "Leslie Bernhard", "who_key": "Bernhard Leslie", "role": "Director", "person_type": "BOARD", "person_label": "Board", "action": "SELL", "amount": 14999.96, "score": 0.0, "price_sensitive": false, "cluster": 0, "industry": "Orthopedic, Prosthetic & Surgical Appliances & Supplies", "country": "United States", "headline": "Boardroom sells $15K of MLSS.OB", "source_url": "https://www.sec.gov/Archives/edgar/data/855683/000120919112035763/0001209191-12-035763-index.htm", "trade_date": "2012-06-27", "timestamp": "2012-06-27", "mins": 7547983}, {"id": "0001209191-12-012318", "src": "INSIDERS", "ticker": "MLSS.OB", "cik": "855683", "company": "MILESTONE SCIENTIFIC INC.", "company_raw": "MILESTONE SCIENTIFIC INC.", "who": "Leonard Osser", "who_key": "OSSER LEONARD", "role": "CEO, Director, 10% Owner", "person_type": "CEO", "person_label": "CEOs", "action": "NON-SIGNAL", "amount": 740908.65, "score": 0.0, "price_sensitive": false, "cluster": 0, "industry": "Orthopedic, Prosthetic & Surgical Appliances & Supplies", "country": "United States", "headline": "CEO files routine paperwork on MLSS.OB \u2014 no open-market trade", "source_url": "https://www.sec.gov/Archives/edgar/data/855683/000120919112012318/0001209191-12-012318-index.htm", "trade_date": "2012-01-09", "timestamp": "2012-01-09", "mins": 7792783}, {"id": "0001209191-12-012442", "src": "INSIDERS", "ticker": "MLSS.OB", "cik": "855683", "company": "MILESTONE SCIENTIFIC INC.", "company_raw": "MILESTONE SCIENTIFIC INC.", "who": "Joseph D'Agostino", "who_key": "D'Agostino Joseph", "role": "CFO & COO", "person_type": "C_SUITE", "person_label": "C-Suite", "action": "NON-SIGNAL", "amount": 50000.04, "score": 0.0, "price_sensitive": false, "cluster": 0, "industry": "Orthopedic, Prosthetic & Surgical Appliances & Supplies", "country": "United States", "headline": "CFO files routine paperwork on MLSS.OB \u2014 no open-market trade", "source_url": "https://www.sec.gov/Archives/edgar/data/855683/000120919112012442/0001209191-12-012442-index.htm", "trade_date": "2011-12-31", "timestamp": "2011-12-31", "mins": 7805743}, {"id": "0001209191-11-047960", "src": "INSIDERS", "ticker": "MLSS.OB", "cik": "855683", "company": "MILESTONE SCIENTIFIC INC.", "company_raw": "MILESTONE SCIENTIFIC INC.", "who": "Joseph D'Agostino", "who_key": "D'Agostino Joseph", "role": "CFO & COO", "person_type": "C_SUITE", 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