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REGN · Additional Proxy Materials (DEFA14A) · Filed April 24, 2026

Regeneron Pharmaceuticals Inc — Additional Proxy Materials (DEFA14A)

Form
DEFA14A
Filed
April 24, 2026
Ticker
REGN
Accession
0001308179-26-000341
Regeneron Pharmaceuticals Inc on Boardroom AlphaView on SEC EDGAR
Boardroom Alpha · Filing insights

Regeneron Pharmaceuticals, Inc. reports no substantive developments; consult the filing for more details.

About Regeneron Pharmaceuticals Inc
Market cap
$63.2B
1Y TSR
+30.6%
3Y TSR
−3.6%
Board grade
B-
Sector
Healthcare
CEO
Leonard S Schleifer
Last annual meeting: Jun 12, 2026 · View full Regeneron Pharmaceuticals Inc profile →
Document

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 14A
Proxy Statement Pursuant to Section 14(a) of the
Securities Exchange Act of 1934 (Amendment No.  )
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Filed by the Registrant
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Filed by a party other than the Registrant

CHECK THE APPROPRIATE BOX:
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Preliminary Proxy Statement
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Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
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Definitive Proxy Statement
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Definitive Additional Materials
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Soliciting Material under §240.14a-12
logo.jpg
REGENERON PHARMACEUTICALS, INC.
(Name of Registrant as Specified In Its Charter)
(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

PAYMENT OF FILING FEE (CHECK ALL BOXES THAT APPLY):
☑
No fee required
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Fee paid previously with preliminary materials
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Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11


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Reference

Frequently asked questions

When did Regeneron Pharmaceuticals Inc file this DEFA14A?
Regeneron Pharmaceuticals Inc (REGN) filed this Additional Proxy Materials (DEFA14A) with the SEC on April 24, 2026. The accession number assigned by EDGAR is 0001308179-26-000341.
What does a DEFA14A disclose?
DEFA14A is additional definitive proxy soliciting material filed in connection with a shareholder meeting — supplemental letters, slides, or amendments issued after the main proxy statement.
What is the key takeaway from this filing?
Regeneron Pharmaceuticals, Inc. reports no substantive developments; consult the filing for more details. This is Boardroom Alpha's one-line summary of the additional proxy materials; see the full filing text above for the formal disclosure.
Where can I find Regeneron Pharmaceuticals Inc's prior proxy statements on EDGAR?
The SEC EDGAR browser lists every DEFA14A Regeneron Pharmaceuticals Inc has filed under CIK 872589, sortable by date. Use the "View on SEC EDGAR" link in the page header, or browse directly via https://www.sec.gov/cgi-bin/browse-edgar.
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