Quick Takeaways
- D1 Capital Partners L.P. filed SCHEDULE 13G for CLEAN HARBORS INC Common Stock, par value $0.01 per share (CLH).
- Disclosed ownership: 5.2%.
- Date of event: 31 Dec 2025.
D1 Capital Partners L.P. - 31 Dec 2025 SCHEDULE 13G Report for CLEAN HARBORS INC Common Stock, par value $0.01 per share (CLH)
- Filing Manager
- D1 Capital Partners L.P.
- Reporting Manager
- D1 Capital Partners L.P.
- Symbol
- CLH
- Shares outstanding
- 53,497,731 shares
- Disclosed Ownership
- 2,781,882 shares
- Ownership
- 5.2%
- Form type
- SCHEDULE 13G
- Filing time
- 17 Feb 2026, 12:08:32 UTC
- Date of event
- 31 Dec 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"D1 Capital Partners L.P. disclosed 5.2% ownership in CLEAN HARBORS INC Common Stock, par value $0.01 per share (CLH) on 31 Dec 2025."
What Changed
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 17 Feb 2026, 12:08.
Why This Matters
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Source Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting Managers (2)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| D1 Capital Partners L.P. | 5.2% | 2,781,882 | 0 | 2,781,882 | /s/ Amanda Hector | Amanda Hector, General Counsel and Chief Compliance Officer | |
| Daniel Sundheim | 5.2% | 2,781,882 | 0 | 2,781,882 | /s/ Daniel Sundheim | Daniel Sundheim, Individually |