Eric W Gerstenberg

CIK 1211558 · View on SEC EDGAR ↗

Insider

First SEC filing: Jan. 25, 2012 · Latest: Jan. 25, 2012

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Insider at

Insider transactions

0 buys (P) 6 sells (S) Net: $-2,933,431 + 84 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

84 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
Aug. 14, 2026 CLH S 2,500 $321.34 $803,350 56,793 Direct -4.22% Disposed 1.5% (price as of 2026-08-19)
March 18, 2026 CLH S 1,000 $293.00 $293,000 59,857 Direct -1.64% Disposed 11.3% (price as of 2026-08-19)
March 18, 2026 CLH S 1,000 $293.00 $293,000 38,877 Direct -2.51% Disposed 11.3% (price as of 2026-08-19)
Feb. 23, 2026 CLH S 2,500 $279.86 $699,650 64,000 Direct -3.76% Disposed 16.5% (price as of 2026-08-19)
Feb. 23, 2026 CLH S 2,500 $279.86 $699,650 43,020 Direct -5.49% Disposed 16.5% (price as of 2026-08-19)
Dec. 16, 2025 CLH S 601 $240.90 $144,781 50,454 Direct -1.18% Disposed 35.4% (price as of 2026-08-19)
March 25, 2022 CLH S 6,927 $106.62 $738,557 90,826 Direct -7.09% Disposed 205.8% (price as of 2026-08-19)
Aug. 20, 2021 CLH S 17,963 $100.28 $1,801,330 76,271 Direct -19.06% Disposed 225.2% (price as of 2026-08-19)
Aug. 20, 2020 CLH S 20,279 $61.72 $1,251,620 85,831 Direct -19.11% Disposed 428.3% (price as of 2026-08-19)
Aug. 8, 2019 CLH S 20,000 $78.52 $1,570,400 74,557 Direct -21.15% Disposed 315.3% (price as of 2026-08-19)
June 25, 2018 CLH S 8,000 $55.19 $441,520 59,486 Direct -11.85% Disposed 490.8% (price as of 2026-08-19)
Dec. 27, 2017 CLH S 7,150 $52.77 $377,306 79,052 Direct -8.29% Disposed 517.9% (price as of 2026-08-19)
Dec. 26, 2017 CLH S 5,143 $53.04 $272,785 86,202 Direct -5.63% Disposed 514.8% (price as of 2026-08-19)
Aug. 24, 2017 CLH S 4,667 $50.42 $235,310 91,950 Direct -4.83% Disposed 546.7% (price as of 2026-08-19)
Dec. 9, 2016 CLH S 7,500 $55.42 $415,650 83,525 Direct -8.24% Disposed 488.4% (price as of 2026-08-19)
Sept. 9, 2015 CLH S 16,493 $49.19 $811,291 73,193 Direct -18.39% Disposed 562.9% (price as of 2026-08-19)

Showing latest 100 of 164 transactions

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.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date Ticker Security Underlying Exercise price Expiration Shares A/D
Aug. 22, 2008 CLH Employee Stock Option Common Stock (8,000) $12.98 Feb. 21, 2013 8,000 Disposed
April 4, 2007 CLH Exercise of Employee stock option Common Stock (8,000) $12.98 April 4, 2007 8,000 Disposed
Sept. 26, 2006 CLH Employee Stock Option Common Stock (1,000) $2.26 Sept. 26, 2011 1,000 Disposed
May 5, 2006 CLH Employee Stock Option Common Stock (8,000) $12.98 Feb. 21, 2013 8,000 Disposed
Sept. 29, 2005 CLH Employee Stock Option Common Stock (2,000) $2.26 Sept. 26, 2011 1,000 Disposed
June 13, 2005 CLH Employee stock option Common Stock (40,000) $12.98 Feb. 21, 2013 16,000 Disposed
May 2, 2005 CLH Employee Stock Option Common Stock (1,000) $2.26 Sept. 26, 2011 1,000 Disposed
May 2, 2005 CLH Employee Stock Option Common Stock (6,000) $2.50 Feb. 25, 2010 6,000 Disposed

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

CLH

Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2025 $1,000,000 — $3,197,110 — $1,719,000 — $13,312 $5,929,422
2024 $900,000 — $2,881,028 — $1,493,831 — $7,986 $5,282,845
2023 $831,250 — $2,931,746 — $1,168,875 — $6,672 $4,938,543

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.