REGENERON PHARMACEUTICALS, INC. (REGN)
Data as of , from SEC Form 4 filings.
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About REGENERON PHARMACEUTICALS, INC. (REGN)
REGENERON PHARMACEUTICALS, INC. is an SEC registrant, filing under CIK 0000872589, classified as pharmaceutical preparations. We track it alongside the rest of the Health Care sector.
REGN Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 5 | 3,946 | $3.30M |
| Option exercise | 10 | 40,330 | |
| Tax withholding / forfeiture | 2 | 13,618 |
Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.
REGN insider transactions (Form 4)
2836 Form 4 filings on record, the earliest from Oct 3, 2024, newest first. Filing history page 2 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Joseph J. Larosa - Officer | Grant or award | Common Stock | 2,332 | $0.00 | - | |
| Joseph J. Larosa - Officer | Tax withholding / forfeiture | Common Stock | 492 | $787.00 | $387K | |
| Joseph J. Larosa - Officer | Grant or award | Non-Qualified Stock Option (right to buy) | 8,981 | $0.00 | - | |
| Neil Stahl - Officer | Tax withholding / forfeiture | Common Stock | 466 | $787.00 | $367K | |
| Andrew J. Murphy - Officer | Gift | Common Stock | 1,185 | $0.00 | - | |
| Marion McCourt - Officer | Option exercise | Common Stock | 1,000 | $381.40 | $381K | |
| Marion McCourt - Officer | Open-market sale | Common Stock | 1,000 | $844.61 | $845K | |
| Marion McCourt - Officer | Option exercise | Non-Qualified Stock Option (right to buy) | 1,000 | $0.00 | - | |
| Marion McCourt - Officer | Option exercise | Common Stock | 1,000 | $381.40 | $381K | |
| Marion McCourt - Officer | Open-market sale | Common Stock | 1,000 | $1,054.06 | $1.05M | |
| Marion McCourt - Officer | Option exercise | Non-Qualified Stock Option (right to buy) | 1,000 | $0.00 | - | |
| Arthur F. Ryan - Director | Open-market sale | Common Stock | 3 | $1,041.35 | $3K | |
| Arthur F. Ryan - Director | Open-market sale | Common Stock | 1 | $1,042.31 | $1K | |
| Arthur F. Ryan - Director | Open-market sale | Common Stock | 5 | $1,043.39 | $5K | |
| Arthur F. Ryan - Director | Open-market sale | Common Stock | 9 | $1,044.62 | $9K | |
| Arthur F. Ryan - Director | Open-market sale | Common Stock | 7 | $1,045.27 | $7K | |
| Arthur F. Ryan - Director | Open-market sale | Common Stock | 9 | $1,046.53 | $9K | |
| Arthur F. Ryan - Director | Open-market sale | Common Stock | 12 | $1,047.44 | $13K | |
| Arthur F. Ryan - Director | Open-market sale | Common Stock | 12 | $1,048.54 | $13K | |
| Arthur F. Ryan - Director | Open-market sale | Common Stock | 9 | $1,049.68 | $9K | |
| Arthur F. Ryan - Director | Open-market sale | Common Stock | 6 | $1,050.60 | $6K | |
| Arthur F. Ryan - Director | Open-market sale | Common Stock | 9 | $1,051.51 | $9K | |
| Arthur F. Ryan - Director | Open-market sale | Common Stock | 4 | $1,052.44 | $4K | |
| Arthur F. Ryan - Director | Open-market sale | Common Stock | 4 | $1,053.45 | $4K | |
| Arthur F. Ryan - Director | Open-market sale | Common Stock | 3 | $1,054.90 | $3K | |
| Arthur F. Ryan - Director | Open-market sale | Common Stock | 3 | $1,056.68 | $3K | |
| Arthur F. Ryan - Director | Open-market sale | Common Stock | 2 | $1,057.38 | $2K | |
| Arthur F. Ryan - Director | Open-market sale | Common Stock | 2 | $1,059.28 | $2K |
Recent REGN Form 144 notices of proposed sale
3An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| McCourt Marion | Officer | 1,131 | $969K | View on EDGAR | |
| Guarini Kathryn | Director | 400 | $340K |
Stock trades in REGN disclosed by members of the U.S. House in the last 12 months, newest first. Values are the ranges as filed.
| Member | Type | Traded | Disclosed | Value range | Owner | Days to disclose | Filing |
|---|---|---|---|---|---|---|---|
 Gilbert Ray Cisneros, Jr.Democrat, CA-31 | Sale |
REGN insider trading FAQ
What is the latest insider trade for REGN?
REGENERON PHARMACEUTICALS, INC. (REGN) had 6 insider filings in the last 90 days, with the most recent on 2026-09-03. The full record for REGN runs to 36 Form 4 filings, the earliest from 2024-10-03. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying REGN stock?
No insider purchases of REGN were filed in the last 90 days.
How many insiders are selling REGN stock?
5 insider sales of REGN were filed in the last 90 days, totaling $3.30M.
Where can I see REGN SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects REGN Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Health Care companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Marion McCourt view on EDGAR
- - Kathryn Guarini view on EDGAR
- - Joseph J. Larosa view on EDGAR
- - Christopher R. Fenimore view on EDGAR
- - Kathryn Guarini view on EDGAR
- - Huda Y. Zoghbi view on EDGAR
- - Arthur F. Ryan view on EDGAR
- - Arthur F. Ryan view on EDGAR
- - Arthur F. Ryan view on EDGAR
Related companies with recent insider activity
Learn more
- Insider selling: signal or noise?
- Why most insider sales are routine, and the few patterns worth a second look.
- Form 144 vs Form 4
- A Form 144 announces a planned sale; the Form 4 reports it after it happens.
- Insider activity in Health Care
- Where REGN's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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- The daily trading plan of ranked insider buys, on a delay, with the plan archive
