ERIC W GERSTENBERG
CIK 1211558 · CO-CEO · last filed 2026-07-06
ERIC W GERSTENBERG is a CO-CEO who has filed 135 SEC Form 4 insider transactions across 2 companies since 2007. The most recent filing shows the insider had shares withheld for taxes covering $164.0K of CLH on Jul 6, 2026. Across all open-market trades the lifetime net is −$21.9M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $11.8M 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.
$11.81M
2
135
-$21.90M
Holdings By Company
Recent Filings
135 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-07-06 | CLH | Tax (F) | −564 | -$164.0K | EDGAR |
| 2026-03-19 | CLHB | Sell (S) | −1,000 | -$293.0K | EDGAR |
| 2026-03-18 | CLH | Notice (144) | −1,000 | -$290.0K | EDGAR |
| 2026-03-17 | CLHB | Mixed | −3,143 | -$282.3K | EDGAR |
| 2026-02-24 | CLHB | Sell (S) | −2,500 | -$699.6K | EDGAR |
| 2026-02-23 | CLH | Notice (144) | −2,500 | -$712.0K | EDGAR |
| 2026-02-03 | CLHB | Mixed | +16,046 | -$1.28M | EDGAR |
| 2025-12-17 | CLHB | Sell (S) | −601 | -$144.8K | EDGAR |
| 2025-12-16 | CLH | Notice (144) | −601 | -$145.0K | EDGAR |
| 2025-07-03 | CLHB | Tax (F) | −564 | -$129.5K | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.