Which funds own ARM
Arm Holdings PLC in the Q2 2026 filings. At least 9 of the 91 current managers on file reported a position, worth $9.5bn between them. It is among the largest positions of fewer than a fifth of the current managers on file. Buying and selling roughly cancelled this quarter, which is what a name looks like when the argument is still live.
- Managers holding
- 9
- at least, of 91 current
- Combined value
- $9.5bn
- as reported
- Opened
- 2
- new this quarter
- Added to
- 3
- already held
- Trimmed or sold out
- 5
- 1 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 |
|---|---|---|---|---|---|
| Invesco Ltd Long-only · $1264bn book | $4.5bn | 0.4% | 12,816,588 | +$3.7bn+6,933,463 | Added |
| Capital World Investors Long-only · $846bn book | $1.5bn | 0.2% | 4,330,875 | opened4,330,875 | New |
| Arrowstreet Capital LP Quantitative · $225bn book | $1.5bn | 0.6% | 4,094,696 | +$1.3bn+3,149,544 | Added |
| Capital Research Global Investors Long-only · $717bn book | $851m | 0.1% | 2,401,422 | +$213m-1,817,307 | Trimmed |
| Altimeter Capital Management LP Long/short equity · $9.8bn book | $582m | 5.9% | 1,641,972 | +$323m-73,468 | Trimmed |
| Two Sigma Investments LP Quantitative · $138bn book | $234m | 0.2% | 660,156 | +$146m+80,118 | Added |
| Baillie Gifford & Co Long-only · $110bn book | $157m | 0.1% | 441,365 | +$64m-170,532 | Trimmed |
| Artisan Partners LP Long-only · $63.1bn book | $99m | 0.2% | 279,829 | -$2.0m-389,225 | Trimmed |
| Maverick Capital Ltd Long/short equity · $11.3bn book | $1.4m | 0.0% | 3,813 | opened3,813 | New |
Sold out of this quarter
Valued at what the position was worth in the previous filing, because by this one it is gone.
- Whale Rock Capital Management LLC · Long/short equity$68m held before
Ownership through time
At least 17 of the 95 managers whose filings are on file listed ARM in Q2 2026, against 19 in Q3 2023. 4 managers more than in Q1 2026: 4 started positions; 4 listed it again; 1 sold out, by its own filing; 3 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.
- Q3 2023: 19
- Q4 2023: 5
- Q1 2024: 12
- Q2 2024: 11
- Q3 2024: 10
- Q4 2024: 11
- Q1 2025: 11
- Q2 2025: 9
- Q3 2025: 12
- Q4 2025: 13
- Q1 2026: 13
- Q2 2026: 17
- Q3 2023: $836m
- Q4 2023: $413m
- Q1 2024: $1.7bn
- Q2 2024: $1.6bn
- Q3 2024: $1.1bn
- Q4 2024: $984m
- Q1 2025: $1.1bn
- Q2 2025: $2.5bn
- Q3 2025: $2.1bn
- Q4 2025: $2.1bn
- Q1 2026: $2.9bn
- Q2 2026: $12.2bn
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
- Invesco Ltd5,883,125 to 12,816,588 shares+$2.5bn
- Capital World Investorsnew: 4,330,875 shares+$1.5bn
- Arrowstreet Capital LP945,152 to 4,094,696 shares+$1.1bn
- Two Sigma Investments LP580,038 to 660,156 shares+$28m
- Voloridge Investment Management LLCnew: 29,773 shares+$11m
Largest decreases, by shares
- Capital Research Global Investors4,218,729 to 2,401,422 shares-$644m
- Wellington Management Group LLP1,655,703 to 809,451 shares-$300m
- Janus Henderson Group Ltd767,534 to 146,297 shares-$220m
- Artisan Partners LP669,054 to 279,829 shares-$138m
- Baillie Gifford & Co611,897 to 441,365 shares-$60m
Left it
| Manager | Value over time | First listed | Largest | Q2 2026 |
|---|---|---|---|---|
| Invesco Ltd | Q4 2025 | $4.5bn | $4.5bn | |
| Capital World Investors | Q1 2025 | $1.5bn | $1.5bn | |
| Arrowstreet Capital LP | Q4 2023 | $1.5bn | $1.5bn | |
| Fidelity (FMR LLC) | Q1 2024 | $1.4bn | $1.4bn | |
| Capital Research Global Investors | Q3 2025 | $851m | $851m | |
| Altimeter Capital Management LP | Q1 2025 | $582m | $582m | |
| Susquehanna International Group LLP | Q2 2026 | $577m | $577m | |
| Wellington Management Group LLP | Q3 2023 | $336m | $287m | |
| T. Rowe Price Associates Inc | Q2 2026 | $255m | $255m | |
| Two Sigma Investments LP | Q3 2025 | $234m | $234m | |
| Baillie Gifford & Co | Q3 2025 | $156m | $156m | |
| Neuberger Berman Group LLC | Q3 2023 | $218m | $108m | |
| Artisan Partners LP | Q2 2024 | $395m | $99m | |
| Janus Henderson Group Ltd | Q1 2026 | $116m | $52m | |
| Voloridge Investment Management LLC | Q1 2024 | $40m | $11m | |
| Coatue Management LLC | Q2 2025 | $749m | last listed Q4 2025 | |
| D. E. Shaw & Co. | Q1 2024 | $341m | last listed Q3 2024 | |
| Citadel Advisors LLC | Q3 2023 | $316m | last listed Q1 2024 | |
| Jane Street Group LLC | Q1 2024 | $153m | last listed Q1 2024 | |
| Renaissance Technologies LLC | Q1 2024 | $153m | last listed Q4 2025 | |
| Hudson Bay Capital Management LP | Q3 2023 | $148m | last listed Q2 2025 | |
| Balyasny Asset Management LLC | Q3 2023 | $140m | last listed Q1 2026 | |
| Marshall Wace LLP | Q1 2024 | $123m | last listed Q4 2025 | |
| Man Group PLC | Q4 2023 | $90m | last listed Q3 2025 | |
| Bridgewater Associates LP | Q2 2025 | $90m | last listed Q1 2026 |
Reported as options rather than shares
A put or a call on a name is not a position in it, and the filing states the notional rather than what the option cost. These lines are listed apart for that reason and are not counted in anything above.
- Susquehanna International Group LLP · puts$3.2bn notional
- Susquehanna International Group LLP · calls$3.0bn notional
- Jane Street Group LLC · puts$2.5bn notional
- Citadel Advisors LLC · puts$1.9bn notional
- Jane Street Group LLC · calls$1.5bn notional
- Citadel Advisors LLC · calls$1.2bn notional
- Point72 Asset Management LP · calls$140m notional
- Balyasny Asset Management LLC · puts$137m notional
- Squarepoint Ops LLC · calls$128m notional
- Point72 Asset Management LP · puts$108m notional
- Tudor Investment Corp · calls$100m notional
- Tudor Investment Corp · puts$73m notional
What ARM 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 ARM →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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