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MILESTONE SCIENTIFIC INC.

MLSS Net selling
CIK 0000855683 #4803 in the set updated 21 Sep 2026
Bought (120 mo)
$632.31K
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$3.83M
$0.00 on a plan · $0.00 straight out of an exercise
Sold at will
$3.83M
145 of 145 sales
Net
−$3.20M
−$3.20M against sales at will

By person

14 insiders · 175 transactions
Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
OSSER LEONARD
Director
$136.76K (2)
$1.71M (50)
−$1.57M
13,000,933
14.65%
$5.72M
+8.6%
D'Agostino Joseph
CFO & COO
—
$861.01K (25)
−$861.01K
990,237
1.12%
$435.51K
+24.4%
BP4 S.r.l.
10% owner
—
$471.74K (35)
−$471.74K
8,896,765
10.03%
$3.91M
−7.6%
Bernhard Leslie
Director
—
$323.97K (16)
−$323.97K
79,268
0.0893%
$34.86K
−44.9%
GOLDMAN NEAL I
Director
$170.76K (9)
—
+$170.76K
1,905,858
2.15%
$838.20K
+94.8%
Trombetta Giandomenico
Director
$259.62K (2)
$403.54K (13)
−$143.92K
23,829,860
26.85%
$10.48M
+44.7%
SCHILLER LEONARD M
Director
$11.25K (1)
$42.05K (2)
−$30.80K
338,412
0.3814%
$148.83K
+96.7%
Zelnick Edward J.
Director
$12.75K (2)
—
+$12.75K
71,252
0.0803%
$31.34K
—
Goldberger Daniel S
President and CEO
$11.42K (2)
—
+$11.42K
10,000
0.0113%
$4.40K
—
McGeehan Michael
Director
$29.75K (1)
$18.54K (4)
+$11.21K
575,273
0.6483%
$253.01K
+161.3%
CASAMENTO BENEDETTA I
Director
—
—
—
404,491
0.4558%
$177.90K
+342.3%
Haverhals Jan Adriaan
President
—
—
—
319,546
0.3601%
$140.54K
+195.5%
Milligan Peter J
President
—
—
—
124,421
0.1402%
$54.72K
+59.3%
Johnston Brent W
President
—
—
—
29,069
0.0328%
$12.78K
—

Individual transactions

11
Insider
Date
Role
Action
Shares
Price
Amount
Trombetta Giandomenico
6 Dec 2021
Director
Exercised, kept
99,378
$1.61
$160.00K
OSSER LEONARD
1 Dec 2021
Director
Exercised, kept indirect
71,250
$0.50
$35.63K
OSSER LEONARD
30 Nov 2021
Director
Exercised, kept
62,112
$1.71
$106.21K
OSSER LEONARD
9 Nov 2021
Director
Exercised, kept
171,429
$1.93
$330.86K
Trombetta Giandomenico
21 Jan 2021
Director
Exercised, kept
132,780
$1.72
$228.38K
D'Agostino Joseph
15 Jan 2021
CFO & COO
Exercised, kept
86,650
$1.04
$90.12K
OSSER LEONARD
4 Jan 2021
Interim CEO
Exercised, kept
82,988
$1.72
$142.74K
OSSER LEONARD
15 Dec 2020
Interim CEO
Exercised, kept
336,970
$1.14
$384.15K
Trombetta Giandomenico
15 May 2019
See Remarks
Exercised, kept indirect
5,982,906
$1.17
$7.00M
OSSER LEONARD
9 Jan 2017
CEO
Exercised, kept
83,333
$0.75
$62.50K
D'Agostino Joseph
27 Dec 2016
CFO & COO
Exercised, kept
277,778
$0.36
$100.00K
Show all 175 transactions →

What was left out

Form 4 filings counted 180
Amendments (4/A) skipped 10
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 0
Sales at will 145
Transactions with no price 0
Shares from compensation/vesting 11,176,579
Sales filed before the plan box existed 104
History held since 6 Dec 2016