RON BENTSUR
CIK 1251213 · Chairman & CEO · last filed 2026-01-09
"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.
Loading insider history…
Disclosed Exposure
$39.47M
Companies
5
Total Filings
114
Lifetime Open-Market Net
-$10.24M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| NVCT | Chairman & CEO | 3,675,924 | $10.71 | $39.37M | $2.48M | 50 | 2026-01-09 |
| XAIR | Director | 144,736 | $0.37 | $53.7K | -$1.49M | 25 | 2024-11-26 |
| STEMLINE THERAPEUTICS INC (STML) Delisted | Director | 0 | — | — | -$22.4K | 8 | 2020-06-10 |
| KERYX BIOPHARMACEUTICALS INC (KERX) Delisted | Chief Executive Officer | 777,209 | — | — | -$11.23M | 29 | 2015-04-08 |
| XTLB | CEO | 20,101 | $2.13 | $42.8K | $19.9K | 1 | 2007-08-21 |
Recent Filings · Page 9 of 12
114 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2016-05-26 | STEMLINE THERAPEUTICS INC (STML) Delisted | Grant (A) | — | $0 | EDGAR |
| 2015-06-25 | STEMLINE THERAPEUTICS INC (STML) Delisted | Grant (A) | +10,000 | $0 | EDGAR |
| 2015-04-08 | KERYX BIOPHARMACEUTICALS INC (KERX) Delisted | Sell (S) | −1,592 | -$18.6K | EDGAR |
| 2015-03-20 | STEMLINE THERAPEUTICS INC (STML) Delisted | Mixed | +4,033 | -$203 | EDGAR |
| 2015-01-06 | KERYX BIOPHARMACEUTICALS INC (KERX) Delisted | Mixed | +61,801 | -$76.9K | EDGAR |
| 2015-01-02 | KERYX BIOPHARMACEUTICALS INC (KERX) Delisted | Sell (S) | −200,000 | -$2.82M | EDGAR |
| 2014-12-29 | KERYX BIOPHARMACEUTICALS INC (KERX) Delisted | Sell (S) | −338,977 | -$4.74M | EDGAR |
| 2014-12-23 | KERYX BIOPHARMACEUTICALS INC (KERX) Delisted | Grant (A) | +500,000 | $0 | EDGAR |
| 2014-10-07 | KERYX BIOPHARMACEUTICALS INC (KERX) Delisted | Sell (S) | −70,838 | -$1.12M | EDGAR |
| 2014-09-12 | KERYX BIOPHARMACEUTICALS INC (KERX) Delisted | Sell (S) | −50,000 | -$712.0K | EDGAR |
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.