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OSSER LEONARD

SEC insider (Form 3/4/5 filer). CIK 0001188354. 10% Owner at Nexalin Technology, Inc. (NXL) and 1 other issuer. 2 reported Form 4/5 transactions since Sep 2024; latest on Sep 29, 2025. Located in ROSELAND, NJ.

Companies OSSER LEONARD has filed insider reports for

  • Nexalin Technology, Inc. (NXL): 10% Owner
  • MILESTONE SCIENTIFIC INC. (MLSS): Director
OSSER LEONARD profile photo

OSSER LEONARD

CIK: 0001188354

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)1 (50.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)1 (50.0%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (2)

Nexalin Technology, Inc. logo
NXL

Nexalin Technology, Inc.

10% Owner
MILESTONE SCIENTIFIC INC. logo
MLSS

MILESTONE SCIENTIFIC INC.

Director

Discretionary Trading P&L

Holdings

Transaction History (2 total)

  • Nexalin Technology, Inc. logo
    NXL

    Nexalin Technology, Inc.

    Sep 29, 2025
    Award
    Direct
    83.3K shares-
  • MILESTONE SCIENTIFIC INC. logo
    MLSS

    MILESTONE SCIENTIFIC INC.

    Oct 22, 2024
    Sale
    Direct
    108K shares at avg. $0.93$100K

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