Which funds own ALGM
Allegro Microsystems Inc in the Q2 2026 filings. At least 4 of the 91 current managers on file reported a position, worth $3.6bn 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: 4 managers trimmed or sold out against 1 buying.
- Managers holding
- 4
- at least, of 91 current
- Combined value
- $3.6bn
- as reported
- Opened
- 0
- new this quarter
- Added to
- 1
- already held
- Trimmed or sold out
- 4
- 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 |
|---|---|---|---|---|---|
| Fidelity (FMR LLC) Long-only · $2304bn book | $1.8bn | 0.1% | 25,581,021 | +$916m-1,840,185 | Trimmed |
| Invesco Ltd Long-only · $1264bn book | $952m | 0.1% | 13,678,393 | +$676m+4,926,912 | Added |
| Capital Research Global Investors Long-only · $717bn book | $836m | 0.1% | 12,006,396 | +$444m-429,162 | Trimmed |
| Maverick Capital Ltd Long/short equity · $11.3bn book | $700k | 0.0% | 10,094 | -$600k-32,130 | Trimmed |
Sold out of this quarter
Valued at what the position was worth in the previous filing, because by this one it is gone.
- Brevan Howard Capital Management LP · Macro$3.0m held before
Ownership through time
At least 7 of the 95 managers whose filings are on file listed ALGM in Q2 2026, against 4 in Q4 2020. 3 managers more than in Q1 2026: 1 started a position; 3 listed it again; 1 no longer listed it among the positions read, which can mean a holding below the listed range, a filing that reported no holdings, 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.
- Q4 2020: 4
- Q1 2021: 6
- Q2 2021: 3
- Q3 2021: 2
- Q4 2021: 3
- Q1 2022: 5
- Q2 2022: 5
- Q3 2022: 3
- Q4 2022: 2
- Q1 2023: 10
- Q2 2023: 11
- Q3 2023: 12
- Q4 2023: 7
- Q1 2024: 5
- Q2 2024: 8
- Q3 2024: 7
- Q4 2024: 10
- Q1 2025: 6
- Q2 2025: 8
- Q3 2025: 4
- Q4 2025: 3
- Q1 2026: 4
- Q2 2026: 7
- Q4 2020: $50m
- Q1 2021: $125m
- Q2 2021: $106m
- Q3 2021: $118m
- Q4 2021: $209m
- Q1 2022: $154m
- Q2 2022: $110m
- Q3 2022: $111m
- Q4 2022: $138m
- Q1 2023: $881m
- Q2 2023: $325m
- Q3 2023: $151m
- Q4 2023: $120m
- Q1 2024: $560m
- Q2 2024: $688m
- Q3 2024: $907m
- Q4 2024: $806m
- Q1 2025: $1.1bn
- Q2 2025: $1.7bn
- Q3 2025: $1.4bn
- Q4 2025: $989m
- Q1 2026: $1.3bn
- Q2 2026: $3.9bn
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
- Holocene Advisors LP$4.4m
Largest increases, by shares
- Holocene Advisors LPnew: 63,010 shares+$4.4m
Largest decreases, by shares
- Fidelity (FMR LLC)27,421,206 to 25,581,021 shares-$128m
- Capital Research Global Investors12,435,558 to 12,006,396 shares-$30m
- Maverick Capital Ltd42,224 to 10,094 shares-$2.2m
Left it
No manager on file is shown leaving it.
| Manager | Value over time | First listed | Largest | Q2 2026 |
|---|---|---|---|---|
| Fidelity (FMR LLC) | Q1 2023 | $1.8bn | $1.8bn | |
| Invesco Ltd | Q1 2023 | $952m | $952m | |
| Capital Research Global Investors | Q4 2020 | $836m | $836m | |
| T. Rowe Price Associates Inc | Q2 2026 | $258m | $258m | |
| MFS Investment Management | Q2 2023 | $100m | $100m | |
| Holocene Advisors LP | Q1 2024 | $4.6m | $4.4m | |
| Maverick Capital Ltd | Q1 2026 | $1.3m | $703k | |
| AllianceBernstein LP | Q1 2021 | $116m | last listed Q3 2025 | |
| Artisan Partners LP | Q4 2021 | $95m | last listed Q4 2024 | |
| Millennium Management LLC | Q1 2023 | $79m | last listed Q2 2023 | |
| Balyasny Asset Management LLC | Q1 2024 | $58m | last listed Q2 2025 | |
| Woodline Partners LP | Q1 2021 | $47m | last listed Q4 2024 | |
| Neuberger Berman Group LLC | Q2 2025 | $43m | last listed Q2 2025 | |
| Two Sigma Investments LP | Q2 2023 | $40m | last listed Q4 2024 | |
| Freestone Grove Partners LP | Q4 2024 | $40m | last listed Q1 2025 | |
| Schonfeld Strategic Advisors LLC | Q1 2021 | $35m | last listed Q4 2025 | |
| Arrowstreet Capital LP | Q2 2023 | $31m | last listed Q2 2023 |
What ALGM 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 ALGM →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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