REGENERON PHARMACEUTICALS, INC. (REGN) Insider Trading & SEC Filings
SEC Form 4 insider transactions, executive purchases and 10% owner activity.
About REGENERON PHARMACEUTICALS, INC. (REGN)
Regeneron Pharmaceuticals discovers, develops, and commercializes products that fight eye disease, cardiovascular disease, cancer, and inflammation. The company has several marketed products, including low-dose Eylea and Eylea HD, approved for wet age-related macular degeneration and other eye diseases; Dupixent in immunology; Praluent for LDL cholesterol lowering; Libtayo in oncology; Kevzara in rheumatoid arthritis; and Lynozyfic for multiple myeloma. Regeneron has multiple partnerships and collaboration agreements, with Sanofi (Dupixent, others) and Bayer (Eylea) as its largest partners.
90-Day SEC Filing Activity
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 3 | 1,400 | $1.09M |
| Option exercise | 4 | 2,400 |
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
Recent REGN Insider Transactions (Form 4)
7| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Kathryn Guarini - Director | Option exercise | Common Stock | 400 | $719 | $287.7K | |
| Kathryn Guarini - Director | Open-market sale |
Most-Active REGN Insiders - Last 90 Days
10
Recent REGN Form 8-K Material Events
5Recent REGN Form 144 Notices of Proposed Sale
3A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| Guarini Kathryn | Board member | 400 | $320.0K | View on EDGAR | |
| Zoghbi Huda Y | Director | 800 | $640.0K | View on EDGAR | |
| - | - | - | - | View on EDGAR |
Form 4 Transaction Code Reference
- P - Open-market purchase by the insider
- S - Open-market sale by the insider
- A - Grant, award, or other acquisition from the issuer
- M - Exercise or conversion of derivative security (e.g. options)
- F - Payment of exercise price or tax liability via share withholding
- G - Bona-fide gift of securities
- D - Disposition to the issuer (e.g. share buyback participation)
- J - Other acquisition or disposition
- X - Exercise of in-the-money or at-the-money derivative security
- C - Conversion of derivative security
- V - Transaction voluntarily reported earlier than required
REGN Insider Trading - FAQ
What is the latest insider trade for REGN?
REGENERON PHARMACEUTICALS, INC. (REGN) had 3 insider filings in the last 90 days, with the most recent on 2026-08-12. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
How many insiders are buying REGN stock?
0 insider purchases of REGN were filed in the last 90 days.
How many insiders are selling REGN stock?
3 insider sales of REGN were filed in the last 90 days, totaling $1.09M.
Where can I see REGN SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page tracks REGN Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Recent Insider Filings
3Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
- - Kathryn Guarini view on EDGAR
- - Huda Y. Zoghbi view on EDGAR
- - Arthur F. Ryan view on EDGAR
Learn More
- What is SEC Form 4?
- The filing insiders must submit within two business days of a trade, and how to read its transaction codes.
- Insider trading guides
- How to tell a conviction purchase from a scheduled sale, and which signals historically carry information.
- Every recent Form 4
- The full market-wide feed, updated as filings arrive from SEC EDGAR.
- Browse all companies
- Search by ticker or name for any company with insider activity on record.
- Notable insider profiles
- Track records for the executives and directors who file most often.
- Insider activity by sector
- Where buying and selling is concentrated across the eleven GICS sectors.
- Today's daily plan
- The day's Form 4 purchases, scored and ranked with entry and exit levels.
- MCP for AI assistants
- Query this data directly from Claude, ChatGPT or Cursor.
Track REGN insider activity as it files
Real-time Form 4 alerts, AI-scored daily trade ideas and 10b5-1 plan flags.