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.
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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 10 of 12
114 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2014-07-09 | KERYX BIOPHARMACEUTICALS INC (KERX) Delisted | Sell (S) | −1,788 | -$28.2K | EDGAR |
| 2014-01-06 | KERYX BIOPHARMACEUTICALS INC (KERX) Delisted | Mixed | +21,354 | -$66.1K | EDGAR |
| 2013-10-08 | KERYX BIOPHARMACEUTICALS INC (KERX) Delisted | Grant (A) | +400,000 | $0 | EDGAR |
| 2013-10-07 | KERYX BIOPHARMACEUTICALS INC (KERX) Delisted | Sell (S) | −2,505 | -$25.7K | EDGAR |
| 2013-07-09 | KERYX BIOPHARMACEUTICALS INC (KERX) Delisted | Sell (S) | −2,440 | -$19.4K | EDGAR |
| 2013-06-21 | STEMLINE THERAPEUTICS INC (STML) Delisted | Grant (A) | — | $0 | EDGAR |
| 2013-04-08 | KERYX BIOPHARMACEUTICALS INC (KERX) Delisted | Sell (S) | −1,795 | -$12.4K | EDGAR |
| 2013-03-29 | KERYX BIOPHARMACEUTICALS INC (KERX) Delisted | Sell (S) | −31,231 | -$214.9K | EDGAR |
| 2013-01-04 | KERYX BIOPHARMACEUTICALS INC (KERX) Delisted | Mixed | +18,990 | -$16.5K | EDGAR |
| 2012-10-05 | KERYX BIOPHARMACEUTICALS INC (KERX) Delisted | Sell (S) | −746 | -$2.0K | 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.