Leeward Investments, LLC - Ma / CLH
Leeward Investments, LLC - Ma’s Clean Harbors Inc Position
Does Leeward Investments, LLC - Ma own Clean Harbors Inc (CLH)? Yes — 140.7K shares worth $40M (+1.99% of its 13F portfolio) as of Q1 2026, down from 145.0K shares the prior filed quarter.
Position Value
$40M
Q1 2026
Shares
140.7K
% of Portfolio
+1.99%
Quarters Held
17
currently held
Position History CLH
Reported value by quarter
| Quarter | Shares | Value | % of Portfolio |
|---|---|---|---|
| Q1 2026 | 140.7K | $40M | +1.99% |
| Q4 2025 | 145.0K | $34M | +1.72% |
| Q3 2025 | 149.2K | $35M | +1.77% |
| Q2 2025 | 153.5K | $35M | +1.89% |
| Q1 2025 | 158.0K | $31M | +1.66% |
| Q4 2024 | 172.6K | $40M | +1.98% |
| Q3 2024 | 207.2K | $50M | +2.32% |
| Q2 2024 | 237.5K | $54M | +2.47% |
| Q1 2024 | 236.9K | $48M | +2.11% |
| Q4 2023 | 243.8K | $43M | +2.00% |
| Q3 2023 | 248.1K | $42M | +2.12% |
| Q2 2023 | 277.2K | $46M | +2.14% |
| Q1 2023 | 334.0K | $48M | +2.17% |
| Q4 2022 | 360.9K | $41M | +1.82% |
| Q3 2022 | 417.8K | $46M | +2.19% |
| Q2 2022 | 505.6K | $44M | +2.02% |
| Q1 2022 | 515.5K | $58M | +2.28% |
Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See Leeward Investments, LLC - Ma’s full portfolio or all institutional holders of CLH.