Position in CLH
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$19,743,080
+$3,597,726 QoQ
Shares Held
68,856
0.0% QoQ
Ownership
0.130%
of shares outstanding
% of Portfolio
1.01%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in CLH Over Time
Shares Held
Position Value (USD)
Position in Waste Management
Industrials · as of Mar 31, 2026NEEDHAM INVESTMENT MANAGEMENT LLC holds $20,604,792 across 2 Waste Management names. CLH ranks #1 (95.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | CLH |
Clean Harbors Inc
This page
|
68,856 | $19,743,080 | |
| 2 | WM |
Waste Management Inc
|
3,750 | $861,712 |
All Filings in CLH
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $19,743,080 | 68,856 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $16,145,354 | 68,856 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $14,625,447 | 62,981 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $14,080,249 | 60,906 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $12,004,572 | 60,906 | Shares | Defined | 2025-05-15 | |
| 2024-12-31 | $13,982,385 | 60,756 | Shares | Defined | 2025-02-14 | |
| 2024-09-30 | $14,685,332 | 60,756 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $13,706,045 | 60,606 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $12,150,265 | 60,356 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $10,174,980 | 58,306 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $8,636,780 | 51,606 | Shares | Defined | 2023-11-14 | |
| 2023-06-30 | $8,403,359 | 51,106 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $7,485,255 | 52,506 | Shares | Defined | 2023-05-15 | |
| 2022-12-31 | $5,991,984 | 52,506 | Shares | Defined | 2023-02-14 | |
| 2022-09-30 | $5,939,579 | 54,006 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $4,734,706 | 54,006 | Shares | Defined | 2022-08-12 | |
| 2022-03-31 | $3,226,396 | 28,900 | Shares | Defined | 2022-05-16 | |
| 2021-12-31 | $997,700 | 10,000 | Shares | Defined | 2022-02-14 | |
| 2021-09-30 | $571,285 | 5,500 | Shares | Sole | 2021-11-15 | |
| 2021-06-30 | $512,270 | 5,500 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $462,330 | 5,500 | Shares | Defined | 2021-05-17 | |
| 2020-12-31 | $418,550 | 5,500 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $308,165 | 5,500 | Shares | Sole | 2021-02-25 | |
| 2020-06-30 | $329,890 | 5,500 | Shares | Sole | 2021-02-25 | |
| 2020-03-31 | $282,370 | 5,500 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||