Which funds own CLH
Clean Harbors Inc in the Q2 2026 filings. At least 6 of the 91 current managers on file reported a position, worth $2.2bn between them. It is among the largest positions of fewer than a fifth of the current managers on file. The quarter went the other way: 6 managers trimmed or sold out against 2 buying.
- Managers holding
- 6
- at least, of 91 current
- Combined value
- $2.2bn
- as reported
- Opened
- 2
- new this quarter
- Added to
- 0
- already held
- Trimmed or sold out
- 6
- 2 sold out entirely
Only each manager’s largest 200 positions are listed here, so a smaller holder may be missing.
Managers reporting a position
Largest first. Weight is the share of that manager’s whole reported book, which is the number worth quoting: $400m is a rounding error in one book and a defining bet in another.
| Manager | Value | Weight | Shares | Change on the quarter | Action |
|---|---|---|---|---|---|
| Wellington Management Group LLP Long-only · $580bn book | $943m | 0.2% | 3,155,233 | -$83m-421,801 | Trimmed |
| Janus Henderson Group Ltd Long-only · $245bn book | $478m | 0.2% | 1,598,574 | -$198m-756,820 | Trimmed |
| D1 Capital Partners LP Long/short equity · $34.8bn book | $393m | 1.1% | 1,315,501 | +$9.3m-22,780 | Trimmed |
| Durable Capital Partners LP Long/short equity · $10.3bn book | $267m | 2.6% | 892,405 | -$35m-158,568 | Trimmed |
| Steadfast Capital Management LP Long/short equity · $3.3bn book | $90m | 2.8% | 302,091 | opened302,091 | New |
| Holocene Advisors LP Long/short equity · $44.4bn book | $63m | 0.1% | 211,217 | opened211,217 | New |
Sold out of this quarter
Valued at what the position was worth in the previous filing, because by this one it is gone.
- Lone Pine Capital LLC · Long/short equity$503m held before
- Millennium Management LLC · Multi-strategy$18m held before
Ownership through time
At least 13 of the 95 managers whose filings are on file listed CLH in Q2 2026, against 2 in Q2 2013. 4 managers more than in Q1 2026: 4 started positions; 1 listed it again; 1 sold out, by its own filing.
Each manager’s largest 500 positions a quarter are read, so a small holding in a very large book can be missing, and a manager is counted as leaving only where its own filing shows it.
- Q2 2013: 2
- Q3 2013: 2
- Q4 2013: 2
- Q1 2014: 2
- Q2 2014: 4
- Q3 2014: 3
- Q4 2014: 3
- Q1 2015: 7
- Q2 2015: 3
- Q3 2015: 4
- Q4 2015: 4
- Q1 2016: 5
- Q2 2016: 7
- Q3 2016: 6
- Q4 2016: 8
- Q1 2017: 6
- Q2 2017: 7
- Q3 2017: 8
- Q4 2017: 8
- Q1 2018: 6
- Q2 2018: 3
- Q3 2018: 6
- Q4 2018: 8
- Q1 2019: 7
- Q2 2019: 8
- Q3 2019: 7
- Q4 2019: 7
- Q1 2020: 10
- Q2 2020: 4
- Q3 2020: 4
- Q4 2020: 5
- Q1 2021: 6
- Q2 2021: 3
- Q3 2021: 5
- Q4 2021: 5
- Q1 2022: 6
- Q2 2022: 5
- Q3 2022: 11
- Q4 2022: 8
- Q1 2023: 9
- Q2 2023: 7
- Q3 2023: 7
- Q4 2023: 7
- Q1 2024: 5
- Q2 2024: 7
- Q3 2024: 10
- Q4 2024: 10
- Q1 2025: 8
- Q2 2025: 9
- Q3 2025: 9
- Q4 2025: 10
- Q1 2026: 9
- Q2 2026: 13
- Q2 2013: $280m
- Q3 2013: $198m
- Q4 2013: $265m
- Q1 2014: $453m
- Q2 2014: $541m
- Q3 2014: $341m
- Q4 2014: $341m
- Q1 2015: $518m
- Q2 2015: $409m
- Q3 2015: $362m
- Q4 2015: $336m
- Q1 2016: $557m
- Q2 2016: $641m
- Q3 2016: $477m
- Q4 2016: $701m
- Q1 2017: $686m
- Q2 2017: $788m
- Q3 2017: $725m
- Q4 2017: $552m
- Q1 2018: $457m
- Q2 2018: $532m
- Q3 2018: $709m
- Q4 2018: $428m
- Q1 2019: $716m
- Q2 2019: $679m
- Q3 2019: $789m
- Q4 2019: $1.0bn
- Q1 2020: $581m
- Q2 2020: $454m
- Q3 2020: $421m
- Q4 2020: $610m
- Q1 2021: $700m
- Q2 2021: $715m
- Q3 2021: $729m
- Q4 2021: $850m
- Q1 2022: $926m
- Q2 2022: $679m
- Q3 2022: $1.0bn
- Q4 2022: $984m
- Q1 2023: $1.2bn
- Q2 2023: $1.4bn
- Q3 2023: $1.3bn
- Q4 2023: $1.4bn
- Q1 2024: $1.5bn
- Q2 2024: $1.7bn
- Q3 2024: $1.8bn
- Q4 2024: $1.9bn
- Q1 2025: $1.7bn
- Q2 2025: $2.3bn
- Q3 2025: $2.7bn
- Q4 2025: $3.2bn
- Q1 2026: $3.8bn
- Q2 2026: $3.3bn
Between the quarter ends of Q1 2026 and Q2 2026. Each change in shares is valued at the Q2 2026 price, so the price’s own move is left out; a 13F shows the two quarter ends, not when in between anything was bought or sold.
Started in Q2 2026
Largest increases, by shares
- Fidelity (FMR LLC)2,101,179 to 3,002,654 shares+$269m
- Steadfast Capital Management LPnew: 302,091 shares+$90m
- Holocene Advisors LPnew: 211,217 shares+$63m
- Neuberger Berman Group LLC194,039 to 220,828 shares+$8.0m
- Winton Group Ltdnew: 8,760 shares+$2.6m
Largest decreases, by shares
- Janus Henderson Group Ltd2,355,394 to 1,598,574 shares-$226m
- Wellington Management Group LLP3,577,034 to 3,155,233 shares-$126m
- Two Sigma Investments LP724,028 to 423,106 shares-$90m
- Durable Capital Partners LP1,050,973 to 892,405 shares-$47m
- D1 Capital Partners LP1,338,281 to 1,315,501 shares-$6.8m
Left it
- Lone Pine Capital LLCwas $503m
What CLH is worth
Knowing who owns it is half the question. The other half is what it is worth against the companies it trades beside, which is the one an interviewer will follow up with.
Build the comp set around CLH →How much of the picture this is
A Form 13F reports US-listed long equity and nothing else: no shorts, no bonds, no cash and no non-US listings. It arrives forty-five days after the quarter ends, so a manager who sold in July still shows the position in a filing published in August. This page reads the managers on file here rather than every filer in the market, and each manager’s largest positions rather than the whole table, so a small position in a very large book may not appear. Say “their last filing showed” rather than “they own”, and the distinction will do you credit.
What to do with a name the funds are buying
Knowing who owns something is the start of a pitch, not the pitch. The next questions are what it is worth and why they were buying.
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The holdings, every quarter, and the week between
One email a week on what moved in the market and what it means for the people interviewing into it, with the 13F changes the quarter they are filed.
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