CLEAN HARBORS INC · CUSIP 184496107 · CIK 1145255
As of 2024-03-31, HENNESSY ADVISORS INC reported 32.70K CLH (shares), valued at $6.58M, or 0.28% of its reported non-derivative portfolio. Filed 2024-04-16.
Verify history & sources →Shares increased 44.05%; reported value increased 66.18%, and weight changed +0.08 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.
Left: % · Right: Shares · Independently scaled axes
Exact data and methodology
Axes scale independently; a crossing does not mean equal values. Weight uses each quarter's total reported non-derivative value. Same CUSIP; missing quarters are gaps, not zero. Revised history may include later disclosures.
| Quarter | Weight | Quantity | Source |
|---|---|---|---|
| Q2 2026 | Not reported | Not reported | — |
| Q1 2026 | Not reported | Not reported | — |
| Q4 2025 | Not reported | Not reported | — |
| Q3 2025 | Not reported | Not reported | — |
| Q2 2025 | Not reported | Not reported | — |
| Q1 2025 | Not reported | Not reported | — |
| Q4 2024 | Not reported | Not reported | — |
| Q3 2024 | Not reported | Not reported | — |
| Q2 2024 | Not reported | Not reported | — |
| Q1 2024 | 0.28% | 32,700 | SEC filing ↗Filed Apr 16, 2024 |
| Q4 2023 | 0.20% | 22,700 | SEC filing ↗Filed Jan 18, 2024Amended |
| Q3 2023 | 1.92% | 163,800 | SEC filing ↗Filed Oct 18, 2023 |
History & evidence by quarter
| Quarter | Weight | Quantity | Value | Change explained | Source |
|---|---|---|---|---|---|
| Q3 2023 | 1.92% | 163,800 | $27.41M | The prior quarter is outside the free window. Sign in for the comparison. | SEC filing ↗ Filed Oct 18, 2023 |
| Q4 2023 | 0.20% | 22,700 | $3.96M | Shares decreased 86.14%; reported value decreased 85.55%, and weight changed -1.72 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Jan 18, 2024 |
| Q1 2024 | 0.28% | 32,700 | $6.58M | Shares increased 44.05%; reported value increased 66.18%, and weight changed +0.08 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Apr 16, 2024 |
| Q2 2024 | Not reported | — | — | This security is absent from this quarter's filing; a missing record is not treated as zero holdings. | — |
| Q3 2024 | Not reported | — | — | This security is absent from this quarter's filing; a missing record is not treated as zero holdings. | — |
| Q4 2024 | Not reported | — | — | This security is absent from this quarter's filing; a missing record is not treated as zero holdings. | — |
| Q1 2025 | Not reported | — | — | This security is absent from this quarter's filing; a missing record is not treated as zero holdings. | — |
| Q2 2025 | Not reported | — | — | This security is absent from this quarter's filing; a missing record is not treated as zero holdings. | — |
| Q3 2025 | Not reported | — | — | This security is absent from this quarter's filing; a missing record is not treated as zero holdings. | — |
| Q4 2025 | Not reported | — | — | This security is absent from this quarter's filing; a missing record is not treated as zero holdings. | — |
| Q1 2026 | Not reported | — | — | This security is absent from this quarter's filing; a missing record is not treated as zero holdings. | — |
| Q2 2026 | Not reported | — | — | This security is absent from this quarter's filing; a missing record is not treated as zero holdings. | — |
Take these holdings further.
This page includes 12 of 12 reported holdings. Sign in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
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Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.