BreachCensus

Regeneron Pharmaceuticals, Inc.

PharmaUnited States of America

SEC EDGAR CIK 0000872589

Regeneron Pharmaceuticals, Inc. is a pharma organisation in California. It appears on the California Attorney General breach-notification register with 1 confirmed incident; the most recent notice was filed on May 22, 2024.

Data as of September 6, 2026.

Sources

Confirmed incident

Filed in CA and DE

The same incident was filed separately with 2 jurisdictions within a few days of each other (CA and DE) — shown here as one incident.

Occurred
February 21, 2024
Disclosed
May 22, 2024

Timeline

  1. May 22, 2024
    Reported to regulator Regulator

    CA AG breach notification: an unknown number of California residents affected

    source
  2. May 22, 2024
    Reported to regulator Regulator

    DE AG breach notification: 6,367 Delaware residents affected

    source
What a California notice means

Required under Cal. Civ. Code §1798.82. A copy of the notification must be sent to the Attorney General when a single breach requires notifying more than 500 California residents.

Note: no affected-count is published on this register.

California breach-notification register ↗

Related

Same sector and location

Disclosed around the same time