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Waste & Environmental Stocks

Recent market-moving SEC filings and news across waste & environmental companies, ranked by Wiseek's 1–10 importance score.

How Wiseek curates this list

Every item here is a high-importance (score ≥ 7) SEC filing or licensed news event for a waste & environmental company, sourced from SEC EDGAR and licensed news wires and ranked by Wiseek's 1–10 importance score. The underlying source is linked from each article. See our methodology and editorial policy.

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Decent Holding's Healthcare Platform Hits 150,000 Paid Members, Targets 1,000 Centers by Year-End
GlobeNewswireDXST · Corporate Governance and Compliance · 2h ago
OIO Group Seeks $50M PIPE to Fund De Tomaso Growth and M&A Strategy
ProSEC FilingOIO · Financing and Capital Events · 20h ago
CDT Environmental Technology Regains Nasdaq Minimum Bid Price Compliance
ProSEC FilingCDTG · Corporate Governance and Compliance · 1d ago
CDT Environmental Regains Nasdaq Minimum Bid Price Compliance
GlobeNewswireCDTG · Corporate Governance and Compliance · 1d ago
ClearSign Relaunches $6.875M At-The-Market Offering, Significant Dilution Expected
ProWiseek NewsCLIR · Financing and Capital Events · 1d ago
ClearSign Technologies Recommences $6.875M At-The-Market Offering
ProSEC FilingCLIR · Financing and Capital Events · 1d ago
CFO Resigns; CEO Takes Interim CFO Role Amidst Prior Auditor Concerns
SEC FilingWAST · Executive and Board Changes · 1d ago
ClearSign Technologies Recommences $6.875M At-The-Market Offering Amidst Going Concern
ProSEC FilingCLIR · Financing and Capital Events · 1d ago
CDTG Proposes Second Reverse Split, Massive Share Authorization, and Dual-Class Structure
ProSEC FilingCDTG · Corporate Governance and Compliance · 2d ago
Arq's Chief Accounting Officer Resigns, Formalizing Departure Amid Finance Team Changes
Wiseek NewsARQ · Executive and Board Changes · 5d ago
Stockholders Approve 750,000 New Shares for Incentive Plans
SEC FilingQRHC · Corporate Governance and Compliance · 6d ago
Decent Holding Expands China Healthcare Network to Over 480 Centers, Advancing AI-Enabled Aging Platform
GlobeNewswireDXST · Product Development and Regulatory · 7d ago
Casella Waste Systems Appoints Waste Connections Veteran Damian Ribar as COO
SEC FilingCWST · Executive and Board Changes · 7d ago
Rain Enhancement Technologies Establishes $3.5M At-The-Market Equity Offering
ProSEC FilingRAIN · Financing and Capital Events · 7d ago
Rain Enhancement Technologies Files $25M Universal Shelf and $3.5M At-The-Market Offering Amidst Going Concern Doubts
ProSEC FilingRAIN · Financing and Capital Events · 7d ago
Energys Group Reports Widened Losses, Discloses Highly Dilutive $9M Private Offering
ProSEC FilingENGS · Financing and Capital Events · 8d ago
Carbonium Holders to Own 90%+ of TOMI Environmental Post-Merger
ProWiseek NewsTOMZ · M&A and Partnerships · 8d ago
TOMI Environmental Solutions Enters Definitive Merger Agreement with Carbonium Core, Pivoting to Nuclear Materials
ProSEC FilingTOMZ · M&A and Partnerships · 8d ago
Aduro Clean Technologies Closes $6.56M Private Placement at Premium, Insiders Participate
ProSEC FilingADUR · Financing and Capital Events · 12d ago
GFL Environmental Completes US$750 Million Senior Notes Offering
ProSEC FilingGFL · Financing and Capital Events · 12d ago
GFL Environmental Joins Russell 1000 & 3000 Indices, Boosting Investor Access
ProSEC FilingGFL · Ownership and Investor Activity · 13d ago
Major Shareholders Lock Up 67.7% of YDDL Shares for Six More Months
ProGlobeNewswireYDDL · Ownership and Investor Activity · 2026-06-24
Major Shareholders Extend Lock-Up Agreements for Six Months
SEC FilingYDDL · Ownership and Investor Activity · 2026-06-24
Republic Services Finalizes $1.2 Billion Senior Notes Offering
SEC FilingRSG · Financing and Capital Events · 2026-06-23
Nasdaq to Suspend DevvStream Trading Tomorrow After Definitive Delisting Determination
ProWiseek NewsDEVS · Corporate Governance and Compliance · 2026-06-23
Nasdaq Confirms Delisting for DevvStream Corp., Trading Suspension Effective June 24
ProSEC FilingDEVS · Corporate Governance and Compliance · 2026-06-23
LiqTech Secures Order for Four Marine Water Treatment Systems in China
GlobeNewswireLIQT · Product Development and Regulatory · 2026-06-23
TOMI Sees Accelerating SteraMist Adoption Amid Rising Global Biosecurity Threats
GlobeNewswireTOMZ · Product Development and Regulatory · 2026-06-23
GFL Environmental Prices $750M Senior Notes Offering to Fund Acquisition and Optimize Debt
ProSEC FilingGFL · Financing and Capital Events · 2026-06-23
GFL Environmental Prices $750M Senior Notes at 5.625% to Fund Acquisitions, Lower Borrowing Costs
PR NewswireGFL · Financing and Capital Events · 2026-06-23
Republic Services Files Pricing Term Sheet for $1.2 Billion Notes Offering
ProReutersRSG · Financing and Capital Events · 2026-06-22
Republic Services Prices $1.2 Billion in Senior Notes
SEC FilingRSG · Financing and Capital Events · 2026-06-22