DAVID S CHERNOW
CIK 1169897 · Vice Chairman · last filed 2026-05-01
"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
$14.50M
Companies
1
Total Filings
49
Lifetime Open-Market Net
-$27.33M
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 |
|---|---|---|---|---|---|---|---|
| SEM | Vice Chairman | 870,244 | $16.66 | $14.50M | -$27.33M | 49 | 2026-05-01 |
Recent Filings · Page 2 of 5
49 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2023-07-31 | SEM | Tax (F) | −110,475 | -$3.32M | EDGAR |
| 2023-02-28 | SEM | Sell (S) | −139,550 | -$3.81M | EDGAR |
| 2022-08-03 | SEM | Grant (A) | +250,000 | $0 | EDGAR |
| 2022-08-03 | SEM | Tax (F) | −110,450 | -$3.27M | EDGAR |
| 2022-08-02 | SEM | Tax (F) | −110,450 | -$3.27M | EDGAR |
| 2021-08-11 | SEM | Sell (S) | −139,550 | -$5.04M | EDGAR |
| 2021-08-05 | SEM | Grant (A) | +200,000 | $0 | EDGAR |
| 2021-08-03 | SEM | Tax (F) | −110,450 | -$4.36M | EDGAR |
| 2020-11-10 | SEM | Sell (S) | −111,640 | -$2.79M | EDGAR |
| 2020-08-04 | SEM | Tax (F) | −110,450 | -$2.10M | 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.