Which funds own REGN
Regeneron Pharmaceuticals in the Q2 2026 filings. At least 17 of the 89 current managers on file reported a position, worth $9.9bn between them. It is among the largest positions of fewer than a fifth of the current managers on file. The quarter went one way: 11 managers opened or added against 8 cutting.
- Managers holding
- 17
- at least, of 89 current
- Combined value
- $9.9bn
- as reported
- Opened
- 0
- new this quarter
- Added to
- 11
- already held
- Trimmed or sold out
- 8
- 2 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 |
|---|---|---|---|---|---|
| Dodge & Cox Activist · $191bn book | $3.0bn | 1.6% | 4,871,137 | -$407m+412,899 | Added |
| Invesco Ltd Long-only · $1264bn book | $2.5bn | 0.2% | 3,940,665 | -$560m+35,556 | Added |
| T. Rowe Price Associates Inc Long-only · $999bn book | $954m | 0.1% | 1,529,709 | -$729m-647,818 | Trimmed |
| Wellington Management Group LLP Long-only · $580bn book | $792m | 0.1% | 1,270,087 | -$628m-567,372 | Trimmed |
| AQR Capital Management LLC Quantitative · $287bn book | $702m | 0.2% | 1,126,080 | -$244m-104,928 | Trimmed |
| Two Sigma Investments LP Quantitative · $138bn book | $409m | 0.3% | 656,124 | -$218m-156,112 | Trimmed |
| Man Group PLC Quantitative · $62.7bn book | $273m | 0.4% | 436,956 | +$29m+121,744 | Added |
| Neuberger Berman Group LLC Long-only · $150bn book | $263m | 0.2% | 421,976 | -$67m-5,153 | Trimmed |
| Arrowstreet Capital LP Quantitative · $225bn book | $246m | 0.1% | 393,685 | +$113m+222,114 | Added |
| AllianceBernstein LP Long-only · $302bn book | $226m | 0.1% | 292,338 | -$104m-134,576 | Trimmed |
| Squarepoint Ops LLC Multi-strategy · $90.5bn book | $124m | 0.1% | 198,567 | -$2.0m+35,753 | Added |
| Voloridge Investment Management LLC Quantitative · $23.5bn book | $102m | 0.4% | 163,963 | +$90m+148,599 | Added |
| Acadian Asset Management LLC Quantitative · $84.2bn book | $98m | 0.1% | 157,440 | -$19m+6,249 | Added |
| Southeastern Asset Management Inc Activist · $1.9bn book | $95m | 5.0% | 152,322 | -$6.0m+21,660 | Added |
| Renaissance Technologies LLC Quantitative · $72.6bn book | $92m | 0.1% | 148,222 | +$41m+81,420 | Added |
| Woodline Partners LP Long/short equity · $32.4bn book | $45m | 0.1% | 72,595 | -$7.1m+4,844 | Added |
| Bridgewater Associates LP Macro · $24.4bn book | $32m | 0.1% | 51,333 | +$15m+28,609 | Added |
Sold out of this quarter
Valued at what the position was worth in the previous filing, because by this one it is gone.
- Capital Research Global Investors · Long-only$79m held before
- Freestone Grove Partners LP · Multi-strategy$24m held before
What REGN 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 REGN →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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