$310.06+0.67% 1DFinazon · prior-day close · Aug 10, 2026
Price · Chart
Our own end-of-day closes42 sessions
$340$28010 Jun10 Aug
The line runs $288.63 on 10 June through $310.06 on 10 August, 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 42 sessions over that window: $288.63 on 10 June 2026 through $310.06 on 10 August 2026.
Finazon · prior-day close · valuation computed from SEC EDGAR filings · as of Sep 8, 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.
Showing the 10 largest of 11 reported positions. The figures above count all of them.
Source: SEC EDGAR 13F filings
CLH fails-to-deliver
SEC CNS data
On 28 Jul 2026, 4,113 shares of CLH failed to deliver (about $1.2M) — the latest of at least 2 consecutive trading days with recorded fails. The run reaches the start of the window we read, so it may have begun earlier.
Settlement dateShares failedNotional% of shares out
28 Jul 2026
4,113
$1.2M
0.008%
27 Jul 2026
4,833
$1.5M
0.009%
Source: SEC fails-to-deliver (CNS) data
Congressional trades in CLH
STOCK Act disclosures
The most recent congressional trade disclosed in CLH is a sale by April McClain Delaney (house, MD), dated 28 Jul 2026.
DateMemberTypeAmount
28 Jul 2026 filed 03 Aug 2026
April McClain Delaney house · Democrat–MD
Sale
$1K–$15K
24 Jul 2026 filed 03 Aug 2026
April McClain Delaney house · Democrat–MD
Sale
$1K–$15K
01 May 2026 filed 05 Jun 2026
April McClain Delaney house · Democrat–MD
Sale
$1K–$15K
30 Apr 2026 filed 06 May 2026
April McClain Delaney house · Democrat–MD
Sale
$1K–$15K
23 Feb 2026 filed 10 Mar 2026
April McClain Delaney house · Democrat–MD
Purchase
$15K–$50K
Source: U.S. House of Representatives financial disclosures