Kirk Duffee

Insider

First SEC filing: July 28, 2015 · Latest: July 28, 2015

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Insider at

0 buys (P) 0 sells (S) Net: $0 + 12 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

No open-market trades on record; showing all filings.

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Sept. 9, 2016	CLH	F	940	$47.36	$44,518	21,654 Direct	-4.16%	Disposed	586.7% (price as of 2026-08-20)
June 21, 2016	CLH	F	85	$51.86	$4,408	22,594 Direct	-0.37%	Disposed	527.1% (price as of 2026-08-20)
June 7, 2016	CLH	A	2,643	—	—	22,679 Direct	+13.19%	Acquired	(price as of 2026-08-20)
June 7, 2016	CLH	A	1,982	—	—	20,036 Direct	+10.98%	Acquired	(price as of 2026-08-20)
April 1, 2016	CLH	A	5,000	—	—	18,054 Direct	+38.30%	Acquired	(price as of 2026-08-20)
March 30, 2016	CLH	F	52	$49.70	$2,584	13,054 Direct	-0.40%	Disposed	554.3% (price as of 2026-08-20)
March 15, 2016	CLH	F	272	$45.77	$12,449	13,106 Direct	-2.03%	Disposed	610.5% (price as of 2026-08-20)
March 8, 2016	CLH	D	1,169	—	—	13,378 Direct	-8.04%	Disposed	(price as of 2026-08-20)
Dec. 15, 2015	CLH	F	35	$41.11	$1,439	14,547 Direct	-0.24%	Disposed	691.0% (price as of 2026-08-20)
Sept. 11, 2015	CLH	F	600	$48.82	$29,292	14,582 Direct	-3.95%	Disposed	566.1% (price as of 2026-08-20)
Aug. 1, 2015	CLH	A	996	—	—	15,182 Direct	+7.02%	Acquired	(price as of 2026-08-20)
Aug. 1, 2015	CLH	A	598	—	—	14,186 Direct	+4.40%	Acquired	(price as of 2026-08-20)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
July 28, 2015	CLH	Common Stock	13,588	Direct