Regeneron Pharmaceuticals (REGN)Director filed to sell ~$340K

~$340K

planned to sell · 400 shares, around Sep 2, 2026

Planned for

Sep 2, 2026

Notice filed

Sep 2, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Mar 27, 2026CongressDisclosed purchase of REGN — reported range $1,001 - $15,000
2. Jul 2, 2026InsiderDirector sold ~$130K of REGN shares in the open market
3. Jul 6, 2026Company filing · Form 8-K · ResultsReported its results
4. Jul 16, 2026Court · District Court, S.D. New YorkSecurities lawsuit filed: Cheatham v. Regeneron Pharmaceuticals, Inc.
5. Jul 28, 2026FDARecall: Libtayo (cemiplimab-rwlc) Injection, 350 mg/7 mL (50 mg/mL), For Intravenous Infusion After Dilution, Single-Dose Vial, Rx only, Manufactured by: Regeneron Pha…
6. Jul 30, 2026Company filing · Form 8-K · ResultsReported its results
7. Aug 10, 2026Insider · 2 peopleInsiders: 2 sales (~$960K)
8. Aug 19, 2026FDAFDA drug approval: Pasatru
9. Sep 2, 2026Insider · 2 peopleInsiders: 2 sales (~$1.4M)

What came next

1. Sep 3, 2026InsiderOfficer sold ~$970K of REGN shares in the open market
2. Sep 23, 2026Court · District Court, S.D. New YorkSecurities lawsuit filed: Hopkinson v. Regeneron Pharmaceuticals, Inc.
3. Sep 24, 2026Company filing · Form 8-K · Executive changeChanged a top executive or board member“Effective September 24, 2026 (the “ Grant Date ”), the Compensation Committee (the “ Compensation Committee ”) of the Board of Directors (the “ Board ”) of Regeneron Pharmaceuticals, Inc. (“ Regeneron ” or the “ Company ”) granted, upon the approval of the independent, non-employee members of the Board, a one-time award of performance share units (together, the “ 2026 PSUs ”) under the Second Amended and Restated…”
4. Oct 1, 2026Company filing · Form 8-K · Material agreement, ResultsSigned an important agreement, and reported its results (and 1 more item)
5. Oct 1, 2026Government · Federal Register noticeAdvisory Committee; Dermatologic and Ophthalmic Drugs Advisory Committee; Renewal

How to read SEC Form 144

Form 144 is a notice that a company insider plans to sell shares. It is filed when the sell order is placed, so it announces a planned sale and does not prove that the sale took place.

Full guide: What is an SEC Form 144?

What else is on file for Regeneron Pharmaceuticals

For Regeneron Pharmaceuticals, OQRO holds 8 insider filings (SEC Form 4 or Form 144), 1 Congress trade report and 31 fund holdings reports (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its REGN page.

How this filing works

• SEC Form 144
• Rule 10b5-1 trading plans

Other disclosures at Regeneron Pharmaceuticals

• SEC Form 144Sep 3, 2026
• SEC Form 4Sep 3, 2026
• SEC Form 4Sep 3, 2026
• SEC Form 4Sep 3, 2026
• SEC Form 144Sep 2, 2026
• SEC Form 13F-HRAug 14, 2026

Everything OQRO holds on this company is on its REGN page.