DAVID SIDRANSKY
CIK 1277161 · Chairman of the Board · last filed 2025-11-07
DAVID SIDRANSKY is a Chairman of the Board who has filed 67 SEC Form 4 insider transactions across 10 companies since 2007. The most recent filing, for CSBR, was dated Nov 7, 2025. Across all open-market trades the lifetime net is −$311.6K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $5.0M across reported positions.
"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.
$5.01M
10
67
-$311.6K
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| CSBR | Director | 770,605 | $6.50 | $5.01M | $0 | 13 | 2025-11-07 |
| ORGS | Director | 180 | $0.49 | $89 | $1.1K | 9 | 2023-12-21 |
| Old Ayala, Inc (AYLA) Delisted | Director | 230 | $0.50 | $116 | $3.7K | 3 | 2022-06-15 |
| Ayala Pharmaceuticals, Inc. (ADXS) Delisted | Director | — | $0.60 | — | $0 | 3 | 2020-05-05 |
| Ayala Pharmaceuticals, Inc. (ADXSW) Delisted | Director | 110,355 | — | — | $0 | 5 | 2018-06-27 |
| Ayala Pharmaceuticals, Inc. (ADXS.W) Delisted | Director | 80,355 | — | — | -$342.3K | 6 | 2016-08-10 |
| IMMUNE PHARMACEUTICALS INC (IMNP) Delisted | Director | 21,699 | — | — | $26.0K | 2 | 2015-01-12 |
| K-V Pharmaceutical Co (KV.B) Delisted | Director | 1,000 | — | — | $0 | 5 | 2012-05-16 |
| ACEL | Director | — | $13.20 | — | $0 | 4 | 2009-01-05 |
| ZILA INC (ZILA) Delisted | Director | — | — | — | $0 | 1 | 2007-01-10 |
Recent Filings
67 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-11-07 | CSBR | Grant (A) | — | $0 | EDGAR |
| 2024-11-18 | CSBR | Grant (A) | — | $0 | EDGAR |
| 2023-12-21 | ORGS | Grant (A) | — | $0 | EDGAR |
| 2023-11-07 | CSBR | Grant (A) | — | $0 | EDGAR |
| 2023-08-17 | CSBR | Grant (A) | — | $0 | EDGAR |
| 2023-01-23 | — | Grant (A) | +46 | $0 | |
| 2023-01-23 | — | Disp (D) | −250 | $0 | |
| 2022-12-29 | ORGS | Grant (A) | — | $0 | EDGAR |
| 2022-10-14 | CSBR | Mixed | +4,771 | -$2 | EDGAR |
| 2022-06-15 | Old Ayala, Inc (AYLA) Delisted | Grant (A) | — | $0 | EDGAR |