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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.

Insider roster for Milestone Scientific Inc.
NameTitleLast reported holdingLast filingFilings, past year
BP4 S.r.l.10% Owner8,896,765Oct 29, 20255
McGeehan MichaelDirector575,273Dec 20, 20240
Osser LeonardDirector4,606,882Oct 23, 20240
Goldman Neal IDirector1,905,858Aug 30, 20240
Casamento Benedetta IDirector404,491Aug 30, 20240
Trombetta GiandomenicoDirector10,418,382Aug 30, 20240
Milligan Peter JPresident124,421Aug 10, 20230
Haverhals Jan AdriaanPresident319,546Aug 10, 20230
Bernhard LeslieDirector79,268Dec 20, 20220
Schiller Leonard MDirector434,449Oct 11, 20220

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.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Oct 29, 2025 (view filing)4:29 PM ETOct 22-247 daysLateBP4 S.r.l.10% OwnerSSaleCommon Stock, Par Value $0.001−194.4K$0.4366−$84.9K−2.1%8.90M after3 lots
Oct 23, 2025 (view filing)4:49 PM ETOct 20-213 daysLateBP4 S.r.l.10% OwnerSSaleCommon Stock, Par Value $0.001−64.0K$0.4446−$28.5K−0.7%9.09M after2 lots
Oct 17, 2025 (view filing)Oct 10-147 daysLateBP4 S.r.l.10% OwnerSSaleCommon Stock, Par Value $0.001−50.2K$0.544−$27.3K−0.5%9.16M after3 lots
Oct 9, 2025 (view filing)4:55 PM ETOct 7-82 daysBP4 S.r.l.10% OwnerSSaleCommon Stock, Par Value $0.001−40.0K$0.4613−$18.4K−0.4%9.20M after2 lots
Oct 9, 2025 (view filing)9:20 AM ETOct 36 daysLateBP4 S.r.l.10% OwnerSSaleCommon Stock, Par Value $0.001−19.2K$0.4496−$8.64K−0.2%9.24M after2 lots
Sep 16, 2025 (view filing)Sep 115 daysLateBP4 S.r.l.10% OwnerSSaleCommon Stock, Par Value $0.001−10.0K$0.59−$5.90K−0.1%9.26M after
Jul 22, 2025 (view filing)Jul 175 daysLateBP4 S.r.l.10% OwnerSSaleCommon Stock, Par Value $0.001−10.0K$0.64−$6.40K−0.1%9.30M after
Jul 10, 2025 (view filing)Jul 3-87 daysLateBP4 S.r.l.10% OwnerSSaleCommon Stock, Par Value $0.001−92.9K$0.6758−$62.8K−1.0%9.31M after3 lots
Jul 2, 2025 (view filing)Jun 23-309 daysLateBP4 S.r.l.10% OwnerSSaleCommon Stock, Par Value $0.001−27.9K$0.7864−$21.9K−0.3%9.42M after5 lots
Jun 20, 2025 (view filing)Jun 16-184 daysLateBP4 S.r.l.10% OwnerSSaleCommon Stock, Par Value $0.001−11.7K$0.8971−$10.5K−0.1%9.45M after2 lots
Jun 16, 2025 (view filing)Jun 115 daysLateBP4 S.r.l.10% OwnerSSaleCommon Stock, Par Value $0.001−23.8K$0.90−$21.4K−0.3%9.46M after
Jun 11, 2025 (view filing)Jun 9-102 daysBP4 S.r.l.10% OwnerSSaleCommon Stock, Par Value $0.001−50.4K$0.91−$45.8K−0.5%9.48M after2 lots
Jun 10, 2025 (view filing)Jun 5-65 daysLateBP4 S.r.l.10% OwnerSSaleCommon Stock, Par Value $0.001−87.1K$0.9031−$78.6K−0.9%9.53M after2 lots
Jun 6, 2025 (view filing)Jun 3-43 daysLateBP4 S.r.l.10% OwnerSSaleCommon Stock, Par Value $0.001−14.0K$0.9271−$13.0K−0.1%9.62M after2 lots
Jun 3, 2025 (view filing)May 30-Jun 24 daysBP4 S.r.l.10% OwnerSSaleCommon Stock, Par Value $0.001−22.1K$0.939−$20.8K−0.2%9.63M after2 lots
May 30, 2025 (view filing)May 28-292 daysBP4 S.r.l.10% OwnerSSaleCommon Stock, Par Value $0.001−17.6K$0.96−$16.9K−0.2%9.65M after2 lots
Dec 20, 2024 (view filing)Dec 191 dayMcGeehan MichaelDirectorSSaleCommon Stock, Par Value $0.001−20.0K$0.78−$15.6K−3.4%575.3K after
Oct 23, 2024 (view filing)Oct 221 dayOsser LeonardDirectorSSaleCommon Stock, Par Value $0.001−108.0K$0.93−$100.4K−2.3%4.61M after
Sep 27, 2024 (view filing)Sep 243 daysLateMcGeehan MichaelDirectorSSaleCommon Stock, Par Value $0.001−209$1.00−$2090.0%595.3K after
Sep 24, 2024 (view filing)Sep 19-205 daysLateMcGeehan MichaelDirectorSSaleCommon Stock, Par Value $0.001−2.80K$1.00−$2.80K−0.5%593.7K after2 lots
Aug 21, 2024 (view filing)Aug 21Same dayOsser LeonardDirectorSSaleCommon Stock, Par Value $0.001−141.9K$0.95−$134.8K−3.0%4.60M after
Dec 20, 2022 (view filing)Dec 191 dayBernhard LeslieDirectorSSaleCommon Stock, Par Value $0.001−79.3K$0.50−$39.6K−50.0%79.3K after
Dec 20, 2022 (view filing)Dec 191 dayGoldman Neal IDirectorPPurchaseCommon Stock, Par Value $0.001+55.3K$0.50+$27.7K+4.0%1.43M after
Nov 28, 2022 (view filing)Nov 235 daysGoldman Neal IDirectorPPurchaseCommon Stock, Par Value $0.001+45.1K$0.62+$28.0K+3.4%1.38M after
Nov 28, 2022 (view filing)Nov 235 daysBernhard LeslieDirectorSSaleCommon Stock, Par Value $0.001−14.4K$0.64−$9.19K−8.3%158.5K after
Nov 22, 2022 (view filing)Nov 21-221 dayGoldman Neal IDirectorPPurchaseCommon Stock, Par Value $0.001+54.9K$0.63+$34.6K+4.3%1.33M after2 lots
Jun 17, 2022 (view filing)Jun 161 dayGoldman Neal IDirectorPPurchaseCommon Stock, Par Value $0.001+9.72K$0.75+$7.29K+0.8%1.20M after
Jun 15, 2022 (view filing)Jun 15Same dayGoldman Neal IDirectorPPurchaseCommon Stock, Par Value $0.001+5.27K$0.80+$4.22K+0.4%1.19M after
Jun 2, 2022 (view filing)Jun 11 dayGoldman Neal IDirectorPPurchaseCommon Stock, Par Value $0.001+54.9K$0.89+$48.8K+5.1%1.14M after
May 27, 2022 (view filing)May 252 daysGoldman Neal IDirectorPPurchaseCommon Stock, Par Value $0.001+13.2K$0.89+$11.8K+1.2%1.09M after
Apr 20, 2022 (view filing)Apr 182 daysOsser LeonardDirectorSSaleCommon Stock, Par Value $0.001−9.84K$1.12−$11.0K−0.2%4.23M after
Apr 13, 2022 (view filing)Apr 11-122 daysOsser LeonardDirectorSSaleCommon Stock, Par Value $0.001−16.7K$1.19−$20.0K−0.4%4.24M after2 lots
Apr 6, 2022 (view filing)Apr 51 dayBernhard LeslieDirectorSSaleCommon Stock, Par Value $0.001−15.0K$1.36−$20.4K−51.1%14.4K after4 lots
Apr 6, 2022 (view filing)Apr 51 daySchiller Leonard MDirectorSSaleCommon Stock, Par Value $0.001−30.0K$1.40−$42.0K−8.9%306.4K after2 lots
Apr 4, 2022 (view filing)Apr 1-43 daysOsser LeonardDirectorSSaleCommon Stock, Par Value $0.001−20.1K$1.45−$29.1K−0.5%4.25M after2 lots
Mar 29, 2022 (view filing)Mar 281 dayOsser LeonardDirectorSSaleCommon Stock, Par Value $0.001−7.11K$1.33−$9.46K−0.2%4.27M after
Mar 22, 2022 (view filing)Mar 21-221 dayOsser LeonardDirectorSSaleCommon Stock, Par Value $0.001−15.6K$1.28−$20.0K−0.4%4.28M after2 lots
Mar 15, 2022 (view filing)Mar 14-151 dayOsser LeonardDirectorSSaleCommon Stock, Par Value $0.001−16.6K$1.20−$20.0K−0.4%4.29M after2 lots
Mar 8, 2022 (view filing)Mar 7-81 dayOsser LeonardDirectorSSaleCommon Stock, Par Value $0.001−13.9K$1.43−$19.9K−0.3%4.31M after2 lots
Mar 2, 2022 (view filing)Feb 28-Mar 12 daysOsser LeonardDirectorSSaleCommon Stock, Par Value $0.001−15.1K$1.32−$20.0K−0.3%4.33M after2 lots
Feb 23, 2022 (view filing)Feb 22-231 dayOsser LeonardDirectorSSaleCommon Stock, Par Value $0.001−15.9K$1.25−$19.9K−0.4%4.34M after2 lots
Feb 15, 2022 (view filing)Feb 14-151 dayOsser LeonardDirectorSSaleCommon Stock, Par Value $0.001−16.5K$1.21−$20.0K−0.4%4.36M after2 lots
Feb 8, 2022 (view filing)Feb 7-81 dayOsser LeonardDirectorSSaleCommon Stock, Par Value $0.001−15.6K$1.28−$20.0K−0.4%4.37M after2 lots
Feb 1, 2022 (view filing)Jan 31-Feb 11 dayOsser LeonardDirectorSSale−15.4K$1.29−$20.0K−0.4%4.39M after2 lots
Jan 25, 2022 (view filing)Jan 24-251 dayOsser LeonardDirectorSSaleCommon Stock, Par Value $0.001−13.8K$1.45−$20.0K−0.3%4.40M after2 lots
Jan 19, 2022 (view filing)Jan 18-191 dayOsser LeonardDirectorSSaleCommon Stock, Par Value $0.001−11.6K$1.72−$20.0K−0.3%4.42M after2 lots
Jan 11, 2022 (view filing)Jan 10-111 dayOsser LeonardDirectorSSaleCommon Stock, Par Value $0.001−9.90K$2.02−$20.0K−0.2%4.43M after2 lots
Jan 6, 2022 (view filing)Jan 42 daysOsser LeonardDirectorSSale−4.40K$2.09−$9.20K−0.1%4.44M after
Jan 3, 2022 (view filing)Jan 3Same dayOsser LeonardDirectorSSaleCommon Stock, Par Value $0.001−5.00K$2.15−$10.8K−0.1%4.44M after
Dec 28, 2021 (view filing)Dec 27-281 dayOsser LeonardDirectorSSale−9.60K$2.09−$20.0K−0.2%4.35M after2 lots