$3230.00% 1DFinazon · prior-day close · Sep 14, 2026
Price · Chart
Our own end-of-day closes43 sessions
$340$28017 Jun14 Sep
The line runs $287.13 on 17 June through $323 on 14 September, on a scale from $280 to $340. Days the market did not trade hold the previous close, flat.
The chart above plots the price of CLH over the range selected — one day to the full history — drawn by TradingView from their own data. Our own licensed end-of-day series holds 43 sessions over that window: $287.13 on 17 June 2026 through $323 on 14 September 2026.
Finazon · prior-day close · valuation computed from SEC EDGAR filings · as of Sep 15, 2026
CLH insider trades
SEC Form 4 · last 90 days · newest reported trade 14 Aug 2026
Open-market buys0
Open-market sells2
Net sold$1.05M
Non-trade filings10
DateInsiderTypeSharesValue
14 Aug 2026GERSTENBERG ERIC WCO-CEOSell2,500$803K
03 Aug 2026Robertson AndreaDirectorSell789$248K
Compensation mechanics
Share grants, option exercises, tax withholding and transfers. They reach the same Form 4 as a trade, but they are not the insider buying or selling on the open market, so no purchase or sale value applies to them.
DateInsiderTypeSharesValue
17 Jul 2026MCKIM ALAN SEXEC CHAIR, CTO.Tax withheld1,265$393K
01 Jul 2026MCKIM ALAN SEXEC CHAIR, CTO.Tax withheld1,343$390K
01 Jul 2026GERSTENBERG ERIC WCO-CEOTax withheld1,128$328K
01 Jul 2026Weber Brian PEVP (CHESI)Tax withheld814$237K
01 Jul 2026Dugas Eric J.EVP CHIEF FINANCIAL OFFICERTax withheld894$260K
11 of the 45 institutional funds we track reported a CLH position for the quarter ended 30 Jun 2026 — a combined $853.9M; the latest of those filings landed 02 Sep 2026.