Insider · CIK 0001188354
Leonard Osser
Files at MLSS (MILESTONE SCIENTIFIC INC.), NXL (Nexalin Technology, Inc.). First filing Oct 23, 2024, latest Oct 23, 2024.
In brief
Leonard Osser files SEC Form 4 as director and 10% owner at MLSS (MILESTONE SCIENTIFIC INC.), and also at NXL (Nexalin Technology, Inc.). Since Oct 23, 2024, Leonard Osser has reported 0 open-market buys worth $0 and 1 open-market sell worth $100k, the latest filed on Oct 23, 2024.
A track record needs three past buys with six months of prices behind them; Leonard Osser has 0, so none is measured yet.
The newest scored trade: sold $100k of MLSS on Oct 22, 2024, filed Oct 23, 2024, scored 25 (weak).
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
MLSS: MILESTONE SCIENTIFIC INC.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 25Weak | MLSSsell MILESTONE SCIENTIFIC INC. | $100k 107,984 shares | -2% | - |
Transactions
Every row this insider has filed, 2 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 29, 2025 | NXL Nexalin Technology, Inc. | AGrant or award Common Stock | +83,333 | $0.00 | $0 | 1,618,577 | Sep 30, 2025 |
| Oct 22, 2024 | MLSS MILESTONE SCIENTIFIC INC. | SOpen-market sale Common Stock, Par Value $0.001 | -107,984 | $0.93 | $100k | 4,606,882 | Oct 23, 2024 |
Questions about Leonard Osser
Answered from the filings on this page, as of the latest one.
Is Leonard Osser buying or selling?
Not in the last 12 months. Leonard Osser's latest open-market trade on SEC Form 4 was sold $100k of MLSS on Oct 22, 2024.
How did Leonard Osser's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Leonard Osser has 0.
Where does Leonard Osser file Form 4?
Leonard Osser has filed Form 4 at MLSS (MILESTONE SCIENTIFIC INC.); NXL (Nexalin Technology, Inc.). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.