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 5 of 5
49 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2015-07-02 | SEM | Mixed | −33,025 | -$579.3K | EDGAR |
| 2014-10-03 | SEM | Sell (S) | −100,000 | -$1.21M | EDGAR |
| 2014-09-15 | SEM | Tax (F) | −116,975 | -$1.56M | EDGAR |
| 2014-08-08 | SEM | Grant (A) | +150,000 | $0 | EDGAR |
| 2013-09-13 | SEM | Tax (F) | −116,975 | -$963.9K | EDGAR |
| 2012-09-11 | SEM | Mixed | — | -$55.6K | EDGAR |
| 2012-08-24 | SEM | Sell (S) | −14,631 | -$151.5K | EDGAR |
| 2010-09-14 | SEM | Grant (A) | +1,000,000 | $0 | EDGAR |
| 2009-10-01 | SEM | Conv (C) | +8,631 | $0 | EDGAR |
Showing 41–49 of 49
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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.