David Natan
CIK 1253108 · CEO · last filed 2026-09-29
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
PDGI price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
PARKLAND, FL 33067
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| ATER | Director | 301,205 | $0.66 | $199.5K | $0 | 1 | 2026-09-29 |
| SBFM | Director | 3,415 | $2.65 | $9.0K | $0 | 1 | 2026-08-11 |
| QUCY | Director | 137,141 | $0.85 | $116.8K | $0 | 4 | 2026-08-06 |
| FIEE | Director | 248,792 | $3.14 | $781.2K | $0 | 1 | 2026-05-07 |
| SBFMW | Director | 100,000 | $0.03 | $2.5K | $0 | 1 | 2026-04-14 |
| SOWG | Director | 18,458 | $2.10 | $38.8K | $0 | 1 | 2026-04-01 |
| INDP | Director | — | $3.34 | — | $0 | 1 | 2026-01-22 |
| Bio Green Med Solution, Inc. (CYCCP) Delisted | Director | 100,000 | $5.05 | $505.0K | $0 | 2 | 2025-02-28 |
| FiEE, Inc. (MINM) Delisted | Director | 146,792 | $3.61 | $529.9K | $0 | 2 | 2024-10-01 |
| OPGEN INC (OPGN) Delisted | Director | 10,000 | $24.75 | $247.5K | $0 | 1 | 2024-04-12 |
| TITAN PHARMACEUTICALS INC (TTNP) Delisted | Director | 3,312 | $4.61 | $15.3K | $0 | 3 | 2023-10-26 |
| PharmaNet Development Group Inc (PDGI) Delisted | Former EVP | 7,766 | — | — | -$1.53M | 6 | 2007-12-12 |
Recent Filings · Page 3 of 4
32 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2012-02-06 | — | Buy (P) | +350 | $830 | |
| 2010-12-30 | — | Grant (A) | +2,000,000 | $0 | |
| 2010-11-24 | — | Buy (P) | +231 | $670 | |
| 2010-11-08 | — | Grant (A) | +10,000 | $30.0K | |
| 2010-02-26 | — | Buy (P) | +900 | $3.2K | |
| 2010-02-22 | — | Buy (P) | +1,100 | $4.0K | |
| 2007-12-12 | PharmaNet Development Group Inc (PDGI) Delisted | Sell (S) | −3,000 | -$125.9K | EDGAR |
| 2007-12-07 | PharmaNet Development Group Inc (PDGI) Delisted | Mixed | −4,500 | -$212.0K | EDGAR |
| 2007-12-03 | PharmaNet Development Group Inc (PDGI) Delisted | Mixed | — | -$12.9K | EDGAR |
| 2007-11-19 | PharmaNet Development Group Inc (PDGI) Delisted | Mixed | −6,515 | -$302.1K | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.