Which funds own SIRI
Siriusxm Holdings Inc in the Q2 2026 filings. At least 4 of the 91 current managers on file reported a position, worth $3.7bn 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
- 4
- at least, of 91 current
- Combined value
- $3.7bn
- as reported
- Opened
- 0
- new this quarter
- Added to
- 2
- already held
- Trimmed or sold out
- 2
- 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 |
|---|---|---|---|---|---|
| Berkshire Hathaway Inc Long-only · $299bn book | $3.7bn | 1.2% | 124,807,117 | +$806m0 | Held |
| ExodusPoint Capital Management LP Multi-strategy · $15.5bn book | $16m | 0.1% | 531,934 | +$9.5m+262,279 | Added |
| PDT Partners LLC Quantitative · $1.9bn book | $12m | 0.6% | 404,711 | +$1.0m-70,475 | Trimmed |
| Winton Group Ltd Quantitative · $3.1bn book | $8.8m | 0.3% | 298,563 | +$8.5m+282,863 | Added |
Sold out of this quarter
Valued at what the position was worth in the previous filing, because by this one it is gone.
- Maverick Capital Ltd · Long/short equity$700k held before
Ownership through time
At least 8 of the 95 managers whose filings are on file listed SIRI in Q2 2026, against 9 in Q3 2024. 3 managers more than in Q1 2026: 1 started a position; 3 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.
- Q3 2024: 9
- Q4 2024: 3
- Q1 2025: 6
- Q2 2025: 5
- Q3 2025: 10
- Q4 2025: 5
- Q1 2026: 5
- Q2 2026: 8
- Q3 2024: $2.6bn
- Q4 2024: $2.8bn
- Q1 2025: $2.9bn
- Q2 2025: $3.1bn
- Q3 2025: $3.1bn
- Q4 2025: $2.6bn
- Q1 2026: $2.9bn
- Q2 2026: $3.8bn
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
- ExodusPoint Capital Management LP269,655 to 531,934 shares+$7.7m
- Caxton Associates LLPnew: 85,903 shares+$2.5m
Largest decreases, by shares
- PDT Partners LLC475,186 to 404,711 shares-$2.1m
- GAMCO Investors Inc403,959 to 399,304 shares-$138k
Left it
- Maverick Capital Ltdwas $729k
| Manager | Value over time | First listed | Largest | Q2 2026 |
|---|---|---|---|---|
| Berkshire Hathaway Inc | Q3 2024 | $3.7bn | $3.7bn | |
| Squarepoint Ops LLC | Q2 2026 | $49m | $49m | |
| ExodusPoint Capital Management LP | Q3 2024 | $16m | $16m | |
| PDT Partners LLC | Q1 2026 | $12m | $12m | |
| GAMCO Investors Inc | Q3 2024 | $12m | $12m | |
| Winton Group Ltd | Q2 2026 | $8.8m | $8.8m | |
| Caxton Associates LLP | Q2 2026 | $2.5m | $2.5m | |
| Freestone Grove Partners LP | Q2 2026 | $1.6m | $1.6m | |
| AQR Capital Management LLC | Q1 2025 | $117m | last listed Q2 2025 | |
| D. E. Shaw & Co. | Q4 2024 | $99m | last listed Q3 2025 | |
| Point72 Asset Management LP | Q2 2025 | $96m | last listed Q3 2025 | |
| Two Sigma Investments LP | Q1 2025 | $50m | last listed Q4 2025 | |
| Marshall Wace LLP | Q3 2024 | $44m | last listed Q3 2024 | |
| Arrowstreet Capital LP | Q3 2024 | $36m | last listed Q3 2024 | |
| Walleye Capital LLC | Q3 2024 | $32m | last listed Q3 2024 | |
| Two Sigma Advisers LP | Q3 2025 | $19m | last listed Q4 2025 | |
| Bridgewater Associates LP | Q3 2025 | $5.3m | last listed Q3 2025 | |
| Maverick Capital Ltd | Q3 2024 | $5.0m | last listed Q1 2026 |
What SIRI 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 SIRI →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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