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Regeneron Pharmaceuticals

Health CareS&P 500NASDAQ 100

Regeneron Pharmaceuticals insider trading

Regeneron Pharmaceuticals files with the SEC as a Pharmaceutical Preparations company headquartered in Tarrytown, NY. Every time one of its executives or directors buys or sells the stock, the filing appears here the moment it reaches the SEC — with grants and option exercises set apart from the trades that cost the insider their own money.

From SEC filings

Recent REGN insider transactions

4 insiders traded REGN on the open market between Apr 01, 2026 and Sep 03, 2026 — 24 sales worth $3.5M, of which every one was pre-scheduled under a 10b5-1 plan.

Bought
—
Sold
$3.5M

24 of 24 on a 10b5-1 plan

Net
−$3.5M
Insiders
4

Open-market purchases (code P) and sales (code S) from Regeneron Pharmaceuticals's own SEC Form 4 filings. Grants and option exercises are excluded — they are compensation, not decisions. Share counts are derived from the reported value and price. Verify any figure against the original filing before acting on it; this is monitoring, not advice.

Filing history last read from EDGAR on Sep 18, 2026. The live dashboard shows new filings the moment they clear.

Every REGN Form 4 on SEC.gov

SEC Form 4 data, Q3 2024 to Q2 2026

REGN insider trading by quarter

Between Jul 01, 2024 and Jun 30, 2026, 10 insiders traded REGN on the open market: 0 purchases and 215 sales worth $52M, 190 of the sales pre-scheduled under a 10b5-1 plan. In the last four quarters alone: 0 purchases and 78 sales ($9.5M), by 5 insiders.

QuarterBoughtSold
Q2 2026—−$148.3K21 sales · all on a plan
Q1 2026—−$4.2M49 sales · all on a plan
Q4 2025—−$5.1M8 sales · 1 on a plan
Q3 2025——
Q2 2025——
Q1 2025——
Q4 2024—−$2M19 sales · all on a plan
Q3 2024—−$40.6M118 sales · 100 on a plan
Largest sale
−$6.2M of REGN by Poon Christine A (Director) on Aug 15, 2024.

Open-market transactions through Jun 30, 2026most recent first

  • Ryan Arthur F10b5-1

    Director

    −$31.2K

    Apr 01, 2026

    40 sh · $779.71

  • Ryan Arthur F10b5-1

    Director

    −$7K

    Apr 01, 2026

    9 sh · $777.42

  • Ryan Arthur F10b5-1

    Director

    −$3.1K

    Apr 01, 2026

    4 sh · $778.24

  • Ryan Arthur F10b5-1

    Director

    −$15.8K

    Mar 02, 2026

    20 sh · $789.28

  • Ryan Arthur F10b5-1

    Director

    −$15.8K

    Mar 02, 2026

    20 sh · $788.96

  • Ryan Arthur F10b5-1

    Director

    −$8.6K

    Mar 02, 2026

    11 sh · $785.48

  • Ryan Arthur F10b5-1

    Director

    −$7.8K

    Mar 02, 2026

    10 sh · $783.62

  • Ryan Arthur F10b5-1

    Director

    −$7.1K

    Mar 02, 2026

    9 sh · $784.48

  • Ryan Arthur F10b5-1

    Director

    −$5.5K

    Mar 02, 2026

    7 sh · $786.61

  • Ryan Arthur F10b5-1

    Director

    −$5.4K

    Mar 02, 2026

    7 sh · $777.46

  • Ryan Arthur F10b5-1

    Director

    −$3.9K

    Mar 02, 2026

    5 sh · $779.69

  • Ryan Arthur F10b5-1

    Director

    −$2.3K

    Mar 02, 2026

    3 sh · $780.69

  • Ryan Arthur F10b5-1

    Director

    −$1.6K

    Mar 02, 2026

    2 sh · $787.34

  • Ryan Arthur F10b5-1

    Director

    −$1.6K

    Mar 02, 2026

    2 sh · $782.62

  • Ryan Arthur F10b5-1

    Director

    −$1.6K

    Mar 02, 2026

    2 sh · $781.21

From SEC's quarterly Form 3, 4 and 5 data sets: code P purchases and code S sales of common stock, by the date the trade happened. Where a fund and the people who control it each report the same block, it is counted once. Trades made in the last days of Q2 2026 but filed after it closed arrive with SEC's next quarterly release.

Regeneron Pharmaceuticals company record

SEC industry classification
Pharmaceutical Preparations
Headquarters
Tarrytown, NY
Incorporated in
NY
Listed on
Nasdaq
SEC Central Index Key
0000872589

Sourced from this company's own SEC submissions record. The industry label is SEC's Standard Industrial Classification, which is more specific than the Health Care sector shown above.

After insiders bought REGN

What the stock actually did in the 90 days following each open-market purchase

Don't check REGN — let it ping you

Get told the moment an insider moves on REGN

Pro watches Regeneron Pharmaceuticals for you and sends a Telegram ping within moments of a Form 4 clearing EDGAR — a C-suite open-market buy, a cluster, a 10b5-1 regime break — long before it reaches the press. Add REGN to a watchlist, see each mover's benchmark-measured track record and which legendary funds hold it, and read the full filing history instead of the last 72 hours.

Track REGN on the live dashboardFilings on SEC.gov

The live dashboard is free to open. Alerts, watchlists, full filing history and each mover's benchmark-measured track record are Pro. Monitoring, not advice.

How to read REGN insider activity

Open-market purchase (code P)
An insider spending their own money at market price. This is the only buy code that reliably carries signal — it is a decision, not compensation.
Grants and option exercises (codes A, M)
Scheduled compensation. Most "insider buying" headlines are really this, which is why InsiderPulse weights it at a fraction of a real purchase.
Cluster buy
Two or more different insiders buying on the open market in the same window. One executive buying can mean anything; three is much harder to explain away.

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This week on the tape: who actually chose to sellThe weekly split of scheduled 10b5-1 selling vs deliberate sales, with the deciders named.

Questions

Are REGN insiders buying or selling?
Between Apr 01, 2026 and Sep 03, 2026, 4 Regeneron Pharmaceuticals insiders made no open-market purchases and 24 sales worth $3.5M, a net sale of $3.5M. 24 of the sales were pre-scheduled under a Rule 10b5-1 plan.
How much REGN stock have insiders bought and sold in the last two years?
Between Jul 01, 2024 and Jun 30, 2026, 10 Regeneron Pharmaceuticals insiders made no open-market purchases and 215 sales worth $52M. 190 of the sales were pre-scheduled under a Rule 10b5-1 plan. In the four quarters to Jun 30, 2026: no purchases and 78 sales ($9.5M). The largest sale was Poon Christine A selling $6.2M on Aug 15, 2024.
What was the largest recent REGN insider trade?
McCourt Marion (EVP Commercial) sold $1M of REGN stock on Sep 02, 2026 at about $850.00 a share, under a pre-scheduled 10b5-1 plan.
When did an insider last buy REGN shares?
No open-market purchase by a Regeneron Pharmaceuticals insider appears in the filings from Apr 01, 2026 to Sep 03, 2026 — every recorded open-market transaction in that period was a sale.
Where does REGN insider trading data come from?
From the Form 4 filings Regeneron Pharmaceuticals's officers, directors and 10% owners must send the SEC within two business days of a trade. Each row on this page links to its original filing on SEC EDGAR. Share grants and option exercises are kept apart from open-market purchases and sales, because only the latter cost the insider their own money.

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