Companies: 10,795·Total market cap: $144.5T
Regeneron Pharmaceuticals, Inc.

Regeneron Pharmaceuticals, Inc.

REGNNASDAQHealthcare● Active
$635.45
+$6.72(+1.07%)
Market Cap$65.5B
P/E Ratio
52W High$821.11
52W Low$476.49

Regeneron Pharmaceuticals, Inc. (REGN) Insider Trading

Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.

SEC EDGAR · FMP · REGN · as of Jun 8, 2026

Activity summary

Buy transactions

0

P-Purchase only

Sell transactions

66

12 Months

Buy/Sell ratio

0.00

Buy/Sell (by trades)

Overall sentiment

BEARISH
↑ Buy 0%Active transactions only · RSU vesting excluded100% Sell ↓

Regeneron Pharmaceuticals, Inc. insiders have been primarily selling shares over the past 12 Months. Selling activity is often driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment toward the company.

Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only

As of Jun 8, 2026

REGN insider buying and selling by quarter

REGN insider selling · REGN insider buying stocks · quarterly insider activity

Total insider buying (incl. awards)Total insider selling
866K433K0
2025 Q1
2025 Q4
2026 Q1
2026 Q2

Mobile shows last 4Q · Desktop shows full 8Q

Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters

As of Jun 8, 2026

Active insiders

Most active in past 12 months · REGN ceo insider trading

Showing all insiders · Click a card to filter the transactions table below

Aggregated from reportingName · top 5 by trade count (12M) · no extra API

Recent insider transactions

REGN executive sell shares · REGN board member insider trading · REGN insider trading SEC filing

Showing 85 most recent · Common Stock · Form 4 only

Scroll horizontally to see all columns

RYAN ARTHUR F

Director

Sale

Date

May 1

Shares

5

Price

$701.76

Value

$4K

View Form 4 on SEC.gov

RYAN ARTHUR F

Director

Sale

Date

May 1

Shares

15

Price

$702.46

Value

$11K

View Form 4 on SEC.gov

RYAN ARTHUR F

Director

Sale

Date

May 1

Shares

24

Price

$703.46

Value

$17K

View Form 4 on SEC.gov

RYAN ARTHUR F

Director

Sale

Date

May 1

Shares

15

Price

$704.28

Value

$11K

View Form 4 on SEC.gov

RYAN ARTHUR F

Director

Sale

Date

May 1

Shares

14

Price

$705.56

Value

$10K

View Form 4 on SEC.gov

RYAN ARTHUR F

Director

Sale

Date

May 1

Shares

7

Price

$706.74

Value

$5K

View Form 4 on SEC.gov

RYAN ARTHUR F

Director

Sale

Date

May 1

Shares

4

Price

$707.40

Value

$3K

View Form 4 on SEC.gov

RYAN ARTHUR F

Director

Sale

Date

May 1

Shares

6

Price

$709.45

Value

$4K

View Form 4 on SEC.gov

RYAN ARTHUR F

Director

Sale

Date

May 1

Shares

2

Price

$710.87

Value

$1K

View Form 4 on SEC.gov

RYAN ARTHUR F

Director

Sale

Date

May 1

Shares

5

Price

$711.49

Value

$4K

View Form 4 on SEC.gov

RYAN ARTHUR F

Director

Sale

Date

May 1

Shares

1

Price

$712.09

Value

$712

View Form 4 on SEC.gov

RYAN ARTHUR F

Director

Sale

Date

May 1

Shares

2

Price

$714.13

Value

$1K

View Form 4 on SEC.gov

RYAN ARTHUR F

Director

Sale

Date

Apr 1

Shares

1

Price

$771.32

Value

$771

View Form 4 on SEC.gov

RYAN ARTHUR F

Director

Sale

Date

Apr 1

Shares

3

Price

$772.76

Value

$2K

View Form 4 on SEC.gov

RYAN ARTHUR F

Director

Sale

Date

Apr 1

Shares

8

Price

$773.59

Value

$6K

View Form 4 on SEC.gov

RYAN ARTHUR F

Director

Sale

Date

Apr 1

Shares

8

Price

$774.58

Value

$6K

View Form 4 on SEC.gov

RYAN ARTHUR F

Director

Sale

Date

Apr 1

Shares

14

Price

$775.58

Value

$11K

View Form 4 on SEC.gov

RYAN ARTHUR F

Director

Sale

Date

Apr 1

Shares

13

Price

$776.62

Value

$10K

View Form 4 on SEC.gov

RYAN ARTHUR F

Director

Sale

Date

Apr 1

Shares

9

Price

$777.42

Value

$7K

View Form 4 on SEC.gov

RYAN ARTHUR F

Director

Sale

Date

Apr 1

Shares

4

Price

$778.24

Value

$3K

View Form 4 on SEC.gov

RYAN ARTHUR F

Director

Sale

Date

Apr 1

Shares

40

Price

$779.71

Value

$31K

View Form 4 on SEC.gov

RYAN ARTHUR F

Director

Sale

Date

Mar 2

Shares

7

Price

$777.46

Value

$5K

View Form 4 on SEC.gov

RYAN ARTHUR F

Director

Sale

Date

Mar 2

Shares

2

Price

$778.30

Value

$2K

View Form 4 on SEC.gov

RYAN ARTHUR F

Director

Sale

Date

Mar 2

Shares

5

Price

$779.69

Value

$4K

View Form 4 on SEC.gov

RYAN ARTHUR F

Director

Sale

Date

Mar 2

Shares

3

Price

$780.69

Value

$2K

View Form 4 on SEC.gov

⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar

1 / 4

Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —

About REGN insider trading

REGN insider trades

Regeneron Pharmaceuticals, Inc. (REGN) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including RYAN ARTHUR F (Director), Zoghbi Huda Y (Director), Pitofsky Jason (SVP Controller). Over the past 12 months, 5 insiders have filed transactions with the SEC. REGN insiders have been primarily selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.

For Regeneron Pharmaceuticals, Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →

Buy/Sell signal logic
acquisitionOrDisposition field:
A = Acquisition (buy) · D = Disposition (sell)
RSU vesting (M-Exempt) excluded from sentiment
Form 4SEC filing required within 2 business days of any insider transaction
10b5-1Pre-scheduled trading plan that allows insiders to sell on autopilot
Open MktDirect purchase or sale on the open market (excludes awards, options)

Frequently asked questions

REGN insider trading · 5 questions

The insiders of Regeneron Pharmaceuticals, Inc. (REGN) include executives and directors such as RYAN ARTHUR F (Director), Zoghbi Huda Y (Director), Pitofsky Jason (SVP Controller), among others. Over the past 12 months, 5 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.

REGN board member insider tradingwho are REGN insidersREGN insider rosterRegeneron Pharmaceuticals, Inc. executives insider activity

Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 8, 2026