S&CO Inc
- SEC CIK
- 0001082461
- Latest filing
- Aug 6, 2026
CLH holding history
Clean Harbors Inc in every 13F filed by S&CO Inc, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
CLH overviewAll 13F holders of CLHFull Q2 2026 holdings
- Shares (Q2 2026)
- 1,200
- Value
- $358.0K
- % of portfolio
- <0.1%
- Quarters held
- 12
- Since Q3 2023
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 1,200 | $358.0K | <0.1% | 00.0% | Unchanged | Holders |
| Q1 2026 | 1,200 | $344.0K | <0.1% | 00.0% | Unchanged | Holders |
| Q4 2025 | 1,200 | $281.0K | <0.1% | 00.0% | Unchanged | Holders |
| Q3 2025 | 1,200 | $278.0K | <0.1% | 00.0% | Unchanged | Holders |
| Q2 2025 | 1,200 | $277.0K | <0.1% | 00.0% | Unchanged | Holders |
| Q1 2025 | 1,200 | $236.0K | <0.1% | 00.0% | Unchanged | Holders |
| Q4 2024 | 1,200 | $276.0K | <0.1% | 00.0% | Unchanged | Holders |
| Q3 2024 | 1,200 | $290.0K | <0.1% | 00.0% | Unchanged | Holders |
| Q2 2024 | 1,200 | $271.0K | <0.1% | 00.0% | Unchanged | Holders |
| Q1 2024 | 1,200 | $241.0K | <0.1% | 00.0% | Unchanged | Holders |
| Q4 2023 | 1,200 | $209.0K | <0.1% | 00.0% | Unchanged | Holders |
| Q3 2023 | 1,200 | $200.0K | <0.1% | +1,200 | New | Holders |