Position in REGN
as of Mar 31, 2026
· filed May 13, 2026
Position Value
$6,913,377,962
+$166,253,896 QoQ
Shares Held
8,947,735
+2.4% QoQ
Ownership
8.53%
of shares outstanding
% of Portfolio
0.13%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2024
7 quarters on record
Voting authority
Sole 90.17395014783628.ToString("F0")%
Shared 0.ToString("F0")%
None 9.82604985216372.ToString("F0")%
Common Shares in REGN Over Time
Shares Held
Position Value (USD)
Derivatives in REGN
reported options exposure · as of Jun 30, 2025CallValue
$525,000
CallShares
1,000
PutValue
$0
PutShares
0
Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.
Position in Biotechnology
Healthcare · as of Mar 31, 2026BlackRock, Inc. holds $71,867,405,873 across 471 Biotechnology names. REGN ranks #2 (9.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
23,969,517 | $10,703,348,112 | |
| 2 | REGN |
Regeneron Pharmaceuticals, Inc.
This page
|
8,947,735 | $6,913,377,962 | |
| 3 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
10,444,908 | $3,455,906,700 | |
| 4 | INSM |
INSMED Inc
|
16,678,146 | $2,727,210,424 | |
| 5 | INCY |
Incyte Corp
|
18,978,198 | $1,786,227,985 | |
| 6 | MRNA |
Moderna, Inc.
|
29,635,876 | $1,505,502,491 | |
| 7 | EXEL |
Exelixis, Inc.
|
30,816,309 | $1,321,711,486 | |
| 8 | RPRX |
Royalty Pharma plc
|
25,907,745 | $1,242,794,517 |
All Filings in REGN
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8 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $6,913,377,962 | 8,947,735 | Shares | Sole | 2026-05-13 | |
| 2025-12-31 | $6,747,124,066 | 8,741,270 | Shares | Sole | 2026-02-12 | |
| 2025-09-30 | $4,968,877,814 | 8,837,174 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $4,869,944,625 | 9,276,085 | Shares | Sole | 2025-08-12 | |
| 2025-06-30 | $525,000 | 1,000 | Call | Sole | 2025-08-12 | |
| 2025-03-31 | $5,661,060,860 | 8,925,880 | Shares | Sole | 2025-05-02 | |
| 2024-12-31 | $6,219,796,287 | 8,731,622 | Shares | Sole | 2025-02-07 | |
| 2024-09-30 | $8,914,790,614 | 8,480,262 | Shares | Sole | 2024-11-13 | |
| No filing history on record for this holder in this stock. | ||||||