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Data as of 2026-09-29
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Clean Harbors (CLH): Congress and insider trades

Who in Congress and inside the company traded CLH, when each filing appeared, and what buying after each one would have earned against the S&P 500.

Key Facts

  • Clean Harbors (CLH) is a listed stock on NYSE.
  • 1 member of Congress filed 2 buys and 6 sells of CLH, the latest published 2026-09-10 (10 September 2026).
  • Insiders filed 0 open market buys worth $0 and 5 sells worth $1.8M, the latest filed 2026-08-18 (18 August 2026).
  • Across 2 scored buys, Congress averaged +8.8% against the S&P 500 (SPY) over the 90 days after disclosure, with 50% of them ahead of the index. That result is too few trades to draw a conclusion.
  • Data as of 2026-09-29 (29 September 2026).
Congress buys 2 1 members
Congress sells 6
Insider buys 0 $0
Insider sells 5 $1.8M
Congress buys vs S&P, 90d +8.8% 2 scored buys
Insider buys vs S&P, 90d n/a 0 scored buys

Congress trades in CLH

as of 2026-09-10
  1. April McClain Delaney8 trades
Congress trades in CLH, newest first.
FiledMemberTypeSizeDays to file90 day vs S&P
10 Sep 2026 April McClain Delaney (D-MD) sell 50K–100K 15 n/a
4 Aug 2026 April McClain Delaney (D-MD) sell 1K–15K 6 n/a
4 Aug 2026 April McClain Delaney (D-MD) sell 1K–15K 10 n/a
4 Aug 2026 April McClain Delaney (D-MD) sell 1K–15K 7 n/a
8 Jun 2026 April McClain Delaney (D-MD) sell 1K–15K 35 n/a
7 May 2026 April McClain Delaney (D-MD) sell 1K–15K 6 n/a
11 Mar 2026 April McClain Delaney (D-MD) buy 15K–50K 15 -9.5%
6 Jan 2026 April McClain Delaney (D-MD) buy 1K–15K 33 +27.0%

Insider trades in CLH

as of 2026-08-18
Open market insider trades in CLH, newest first.
FiledInsiderTypeSharesPriceValue90 day vs S&P
18 Aug 2026 GERSTENBERG ERIC W sell 2,500 $321.34 $803K n/a
3 Aug 2026 Robertson Andrea sell 789 $314.01 $248K n/a
27 May 2026 States Lauren sell 789 $286.19 $226K n/a
19 Mar 2026 Reed Marcy L. sell 836 $287.94 $241K n/a
19 Mar 2026 GERSTENBERG ERIC W sell 1,000 $293.00 $293K n/a

Frequently asked questions

Who has bought CLH?

2 Congress buys by 1 member and 0 insider buys are on file. The tables on this page list every one.

Did buying CLH after a disclosure beat the market?

Across 2 scored buys, Congress averaged +8.8% against the S&P 500 (SPY) over the 90 days after disclosure, with 50% of them ahead of the index. That result is too few trades to draw a conclusion. A single stock is a small sample.

Sources: Congressional trades: STOCK Act disclosures, collected from CapitolTrades. Insider trades: SEC Form 4 filings, collected from Finviz. Prices: Yahoo Finance daily adjusted closes. Data as of 2026-09-29 (29 September 2026). About these sources.

Not investment advice. Past disclosed trades do not predict future returns. Disclosures are published late, so the trades shown are ones you could only have copied after the fact. Talk to a licensed adviser before you invest.