Which funds own CLS
Celestica Inc in the Q2 2026 filings. At least 9 of the 91 current managers on file reported a position, worth $5.2bn 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: 8 managers trimmed or sold out against 5 buying.
- Managers holding
- 9
- at least, of 91 current
- Combined value
- $5.2bn
- as reported
- Opened
- 1
- new this quarter
- Added to
- 4
- already held
- Trimmed or sold out
- 8
- 4 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 |
|---|---|---|---|---|---|
| Fidelity (FMR LLC) Long-only · $2304bn book | $3.1bn | 0.1% | 8,446,912 | +$951m+886,587 | Added |
| D. E. Shaw & Co. Quantitative · $210bn book | $684m | 0.3% | 1,876,165 | +$404m+881,280 | Added |
| Arrowstreet Capital LP Quantitative · $225bn book | $555m | 0.2% | 1,521,260 | -$62m-669,153 | Trimmed |
| Whale Rock Capital Management LLC Long/short equity · $12.5bn book | $539m | 4.3% | 1,476,430 | +$111m-41,771 | Trimmed |
| Bridgewater Associates LP Macro · $24.4bn book | $121m | 0.5% | 330,689 | -$27m-194,932 | Trimmed |
| Renaissance Technologies LLC Quantitative · $72.6bn book | $81m | 0.1% | 221,768 | +$12m-23,020 | Trimmed |
| Acadian Asset Management LLC Quantitative · $84.2bn book | $76m | 0.1% | 208,614 | +$60m+150,349 | Added |
| Freestone Grove Partners LP Multi-strategy · $15.6bn book | $38m | 0.2% | 105,238 | opened105,238 | New |
| Maverick Capital Ltd Long/short equity · $11.3bn book | $4.7m | 0.0% | 12,782 | +$1.4m+1,209 | Added |
Sold out of this quarter
Valued at what the position was worth in the previous filing, because by this one it is gone.
- Viking Global Investors LP · Long/short equity$466m held before
- D1 Capital Partners LP · Long/short equity$153m held before
- Rokos Capital Management LLP · Macro$4.0m held before
- Caxton Associates LLP · Macro$700k held before
Ownership through time
At least 21 of the 95 managers whose filings are on file listed CLS in Q2 2026, against 13 in Q2 2024. 5 managers fewer than in Q1 2026: 1 started a position; 2 listed it again; 3 sold out, by their own filings; 5 no longer listed it among the positions read, which can mean a holding below the listed range or a filing not yet made.
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 2024: 13
- Q3 2024: 10
- Q4 2024: 14
- Q1 2025: 14
- Q2 2025: 18
- Q3 2025: 26
- Q4 2025: 24
- Q1 2026: 26
- Q2 2026: 21
- Q2 2024: $1.7bn
- Q3 2024: $773m
- Q4 2024: $2.6bn
- Q1 2025: $1.7bn
- Q2 2025: $3.3bn
- Q3 2025: $5.5bn
- Q4 2025: $6.3bn
- Q1 2026: $6.5bn
- Q2 2026: $7.4bn
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)7,560,325 to 8,446,912 shares+$323m
- D. E. Shaw & Co.994,885 to 1,876,165 shares+$321m
- AQR Capital Management LLC453,444 to 677,143 shares+$78m
- Acadian Asset Management LLC58,265 to 208,614 shares+$55m
- Freestone Grove Partners LPnew: 105,238 shares+$38m
Largest decreases, by shares
- Arrowstreet Capital LP2,190,413 to 1,521,260 shares-$244m
- Jane Street Group LLC2,533,015 to 2,100,985 shares-$158m
- Holocene Advisors LP448,716 to 32,012 shares-$152m
- Wellington Management Group LLP1,137,650 to 807,509 shares-$120m
- Bridgewater Associates LP525,621 to 330,689 shares-$71m
Left it
- Viking Global Investors LPwas $466m
- D1 Capital Partners LPwas $153m
- Rokos Capital Management LLPwas $4.0m
| Manager | Value over time | First listed | Largest | Q2 2026 |
|---|---|---|---|---|
| Fidelity (FMR LLC) | Q2 2024 | $3.1bn | $3.1bn | |
| Jane Street Group LLC | Q3 2025 | $766m | $766m | |
| D. E. Shaw & Co. | Q3 2025 | $684m | $684m | |
| Arrowstreet Capital LP | Q2 2024 | $932m | $555m | |
| Whale Rock Capital Management LLC | Q2 2024 | $737m | $539m | |
| T. Rowe Price Associates Inc | Q2 2024 | $449m | $449m | |
| Wellington Management Group LLP | Q2 2025 | $423m | $295m | |
| AQR Capital Management LLC | Q4 2025 | $315m | $236m | |
| Capital World Investors | Q3 2024 | $206m | $206m | |
| Bridgewater Associates LP | Q2 2024 | $148m | $121m | |
| MFS Investment Management | Q2 2025 | $98m | $98m | |
| Renaissance Technologies LLC | Q1 2026 | $81m | $81m | |
| Acadian Asset Management LLC | Q2 2024 | $117m | $76m | |
| Neuberger Berman Group LLC | Q2 2024 | $185m | $58m | |
| Man Group PLC | Q3 2025 | $56m | $56m | |
| Viking Global Investors LP | Q3 2025 | $502m | last listed Q1 2026 | |
| Invesco Ltd | Q4 2024 | $272m | last listed Q4 2024 | |
| D1 Capital Partners LP | Q1 2026 | $153m | last listed Q1 2026 | |
| Balyasny Asset Management LLC | Q4 2024 | $125m | last listed Q3 2025 | |
| Marshall Wace LLP | Q3 2025 | $96m | last listed Q4 2025 | |
| AllianceBernstein LP | Q2 2025 | $92m | last listed Q2 2025 | |
| Millennium Management LLC | Q4 2024 | $90m | last listed Q2 2025 | |
| Rokos Capital Management LLP | Q2 2025 | $84m | last listed Q1 2026 | |
| Two Sigma Investments LP | Q1 2026 | $75m | last listed Q1 2026 | |
| Discovery Capital Management LLC | Q2 2025 | $57m | last listed Q4 2025 |
What CLS 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 CLS →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
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