Which funds own BLK
Blackrock Inc in the Q2 2026 filings. At least 25 of the 91 current managers on file reported a position, worth $15.4bn between them. At least a fifth of the current managers on file hold it, which is a crowd without being the whole market. The quarter went one way: 17 managers opened or added against 7 cutting.
- Managers holding
- 25
- at least, of 91 current
- Combined value
- $15.4bn
- as reported
- Opened
- 4
- new this quarter
- Added to
- 13
- already held
- Trimmed or sold out
- 7
- 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 |
|---|---|---|---|---|---|
| Wellington Management Group LLP Long-only · $580bn book | $4.3bn | 0.7% | 4,495,074 | +$817m+850,406 | Added |
| Capital Research Global Investors Long-only · $717bn book | $4.3bn | 0.6% | 4,458,212 | -$147m-152,206 | Trimmed |
| Citadel Advisors LLC Multi-strategy · $875bn book | $1.1bn | 0.1% | 1,097,186 | +$379m+394,079 | Added |
| MFS Investment Management Long-only · $315bn book | $919m | 0.3% | 954,863 | -$138m-140,294 | Trimmed |
| Capital World Investors Long-only · $846bn book | $754m | 0.1% | 784,722 | +$4.8m+4,714 | Added |
| AQR Capital Management LLC Quantitative · $287bn book | $632m | 0.2% | 657,295 | +$214m+217,101 | Added |
| ValueAct Holdings LP Activist · $5.6bn book | $559m | 9.9% | 581,700 | +$34m+35,600 | Added |
| Millennium Management LLC Multi-strategy · $276bn book | $476m | 0.2% | 495,262 | -$141m-146,296 | Trimmed |
| Two Sigma Investments LP Quantitative · $138bn book | $467m | 0.3% | 485,320 | +$281m+292,299 | Added |
| Balyasny Asset Management LLC Multi-strategy · $80.2bn book | $322m | 0.4% | 334,979 | +$120m+124,675 | Added |
| Neuberger Berman Group LLC Long-only · $150bn book | $296m | 0.2% | 307,984 | -$7.0m-7,276 | Trimmed |
| AllianceBernstein LP Long-only · $302bn book | $230m | 0.1% | 239,426 | -$90m-60,016 | Trimmed |
| Markel Group Inc Activist · $13.1bn book | $212m | 1.6% | 220,200 | unchanged0 | Held |
| Point72 Asset Management LP Multi-strategy · $90.7bn book | $173m | 0.2% | 179,471 | +$122m+126,319 | Added |
| Marshall Wace LLP Quantitative · $127bn book | $123m | 0.1% | 128,063 | opened128,063 | New |
| Renaissance Technologies LLC Quantitative · $72.6bn book | $114m | 0.2% | 118,722 | opened118,722 | New |
| Voloridge Investment Management LLC Quantitative · $23.5bn book | $106m | 0.5% | 110,145 | +$36m+37,276 | Added |
| Woodline Partners LP Long/short equity · $32.4bn book | $87m | 0.3% | 90,061 | +$32m+32,773 | Added |
| Hudson Bay Capital Management LP Multi-strategy · $36.8bn book | $75m | 0.2% | 77,656 | +$60m+61,866 | Added |
| Freestone Grove Partners LP Multi-strategy · $15.6bn book | $72m | 0.5% | 74,523 | opened74,523 | New |
| Harris Associates LP Value · $75.4bn book | $43m | 0.1% | 44,575 | -$9.6m-9,980 | Trimmed |
| Schonfeld Strategic Advisors LLC Multi-strategy · $27.9bn book | $34m | 0.1% | 35,233 | +$29m+29,745 | Added |
| Quantbot Technologies LP Quantitative · $2.5bn book | $14m | 0.5% | 14,136 | +$8.6m+8,915 | Added |
| Dodge & Cox Value · $191bn book | $700k | 0.0% | 711 | unchanged0 | Held |
| Rokos Capital Management LLP Macro · $26.8bn book | $400k | 0.0% | 430 | opened430 | New |
Sold out of this quarter
Valued at what the position was worth in the previous filing, because by this one it is gone.
- PDT Partners LLC · Quantitative$600k held before
Ownership through time
At least 36 of the 95 managers whose filings are on file listed BLK in Q2 2026, against 16 in Q4 2024. 6 managers more than in Q1 2026: 5 started positions; 3 listed it again; 1 sold out, by its own filing; 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 2024: 16
- Q1 2025: 28
- Q2 2025: 18
- Q3 2025: 23
- Q4 2025: 34
- Q1 2026: 30
- Q2 2026: 36
- Q4 2024: $13.9bn
- Q1 2025: $13.5bn
- Q2 2025: $14.6bn
- Q3 2025: $16.9bn
- Q4 2025: $15.3bn
- Q1 2026: $16.5bn
- Q2 2026: $18.6bn
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
- Wellington Management Group LLP3,644,668 to 4,495,074 shares+$818m
- Citadel Advisors LLC703,107 to 1,097,186 shares+$379m
- Two Sigma Investments LP193,021 to 485,320 shares+$281m
- AQR Capital Management LLC440,194 to 657,295 shares+$209m
- Marshall Wace LLPnew: 128,063 shares+$123m
Largest decreases, by shares
- Fidelity (FMR LLC)1,683,432 to 1,429,854 shares-$244m
- Capital Research Global Investors4,610,418 to 4,458,212 shares-$146m
- Millennium Management LLC641,558 to 495,262 shares-$141m
- MFS Investment Management1,095,157 to 954,863 shares-$135m
- AllianceBernstein LP299,442 to 239,426 shares-$58m
Left it
- PDT Partners LLCwas $577k
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.
- Rokos Capital Management LLP · puts$2.7m notional
- Rokos Capital Management LLP · calls$2.7m notional
What BLK 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 BLK →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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