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REGN · Regeneron Pharmaceuticals, Inc. · Holdings

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$739.57 -2.55 (-0.34%) At close · Oct 8
Market Cap
$76.40B
Shares
102.95M
Volume · Oct 8 501.19K Avg daily vol (3M) 739.78K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.
The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.
Holders: 1,347
Total Value: $58,638,302,666
Total Shares: 94,234,901
Showing 1–100 of 1,397 holdings by value · page 1 of 14

Institutional Ownership Trend

27 quarters

Holder Concentration

Across 1,347 13F filers
Top Holder
9.7%
Sep 2023 → Jun 2026 · range 9.6% – 11.3%
of institutional value
Top 5
31.3%
Sep 2023 → Jun 2026 · range 31.3% – 42.9%
of institutional value
Top 10
46.5%
Sep 2023 → Jun 2026 · range 44.7% – 58.0%
of institutional value
HHI
297
Sep 2023 → Jun 2026 · range 296 – 461
Broadly held
Showing 100 of 1,397
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 872589 CUSIP 75886F107 13F (30d) 39 filings 35 filers Visit website Investor relations