144Filing Date: Sep 2, 2026

Regeneron (REGN)

Insider Proposed Sale Notice

McCourt Marion

Officer·Regeneron

Proposed

CommonNASDAQ

Shares1.22K

Est. DateSep 2

Market Value$1.03M

BrokerUBS Financial Services Inc.

AcquisitionRSA Vesting · Issuer

Acquired DateFeb 12, 2023

Amount Acquired224

10b5-1 Plan Adoption02/17/2026

% Outstanding0.0012%

10b5-1

Exercise / Payment Details

Paid: Feb 12, 2023Method: N/A

No sales in the past 3 months

Signature & Compliance expand_more

Notice DateSep 2, 2026

10b5-1 Plan Adoption02/17/2026

Signature /s/ UBS Financial Services Inc, as attorney-in-fact for Marion McCourt

Issuer Info expand_more

CompanyREGENERON PHARMACEUTICALS, INC.

CIK0000872589

SEC File No.000-19034

Phone9148477000

Address777 OLD SAW MILL RIVER ROAD, TARRYTOWN, NY 10591