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Regeneron Pharmaceuticals
REGN
REGN
1,392 hedge funds and large institutions have $69.8B invested in Regeneron Pharmaceuticals in 2026 Q1 according to their latest regulatory filings, with 134 funds opening new positions, 573 increasing their positions, 462 reducing their positions, and 100 closing their positions.
New
Increased
Maintained
Reduced
Closed
34% more first-time investments, than exits
New positions opened: 134 | Existing positions closed: 100
24% more repeat investments, than reductions
Existing positions increased: 573 | Existing positions reduced: 462
1% more funds holding
Funds holding: 1,385 → 1,392 (+7)
1% less capital invested
Capital invested by funds: $70.7B → $69.8B (-$933M)
5% less call options, than puts
Call options by funds: $1.04B | Put options by funds: $1.1B
1.56% less ownership
Funds ownership: 88.65% → 87.09% (-1.6%)
12% less funds holding in top 10
Funds holding in top 10: 26 → 23 (-3)
Holders
1,392
Holders Change
+7
Holders Change %
+0.51%
% of All Funds
17.13%
Holding in Top 10
23
Holding in Top 10 Change
-3
Holding in Top 10 Change %
-11.54%
% of All Funds
0.28%
New
134
Increased
573
Reduced
462
Closed
100
Calls
$1.04B
Puts
$1.1B
Net Calls
-$59M
Net Calls Change
-$945M
Top Buyers
| 1 |
Wellington Management Group
Boston,
Massachusetts
|
+$898M |
| 2 |
Two Sigma Investments
New York
|
+$407M |
| 3 |
JP Morgan Chase
New York
|
+$285M |
| 4 |
BG
Bellevue Group
Kuesnacht,
Switzerland
|
+$203M |
| 5 |
AQR Capital Management
Greenwich,
Connecticut
|
+$180M |
Top Sellers
| 1 |
Fidelity Investments
Boston,
Massachusetts
|
-$614M |
| 2 |
Marshall Wace
London,
United Kingdom
|
-$366M |
| 3 |
Holocene Advisors
New York
|
-$356M |
| 4 |
Millennium Management
New York
|
-$243M |
| 5 |
Acadian Asset Management
Boston,
Massachusetts
|
-$226M |
