Skip to content
Whale Atlas — Follow the signal.
Home
FULL RECORDS
Search insider filingsAll Congress filings
MORE TOOLS
WatchlistGold IntelligencePeopleCharts & technicalsCompany financialsOfficial newsMy saved workspace
YOUR RESEARCH
HomeSearch insider filingsAll Congress filings
More research tools
ExploreGold IntelligencePeopleInvestigate an ideaCharts & technicalsMore evidenceCompany financialsOfficial newsMy research & helpWatchlistMy saved workspaceLearn the basicsHow signals workData & coverage
RESOURCES
LearnMethodologyData sources
Built on public evidence.

Primary sources. Clear reasoning.
No black boxes.

Our approach
Public research workspacev1.0

Loading data…Scanning SEC filings…Checking Congress reports…Following the signal…

HomeSearchCongressWatchlist
© 2026 Whale AtlasFree public-filing research. Not financial advice. By using this site you agree to the Terms of Use.
FAQCompare trackersMethodologyData & correctionsTermsPrivacy
Back to Home
R

REGN

Nasdaq

REGENERON PHARMACEUTICALS, INC.

Latest disclosureSeptember 3, 2026
Insider score Why 0?
0/ 100
Qualifying buys · 30d
$0

0 purchases · 27 sales

Price by TradingViewDelayed quote from TradingView, for viewing only. It does not power Whale Atlas scores or alerts. If the quote does not load, open the TradingView link.

Insider transactions 39

Limited filing history
All39Buying0Selling27Other12
Filters

Last 30 daysNo qualifying insider buying. No qualifying insider sales.

12 of 39 trades · April 1, 2026 – September 3, 2026Incomplete history: this shows the filings imported so far, not every filing ever made. Dates are trade dates. Filters affect this table only.

Showing the first 6 of 12 trades on this page.

Exercise or conversion

Kathryn Guarini

Director

Common Stock

Value context
$287.75K
Reported price
$719.37 / share
Traded September 2, 2026Filed September 3, 2026SEC filing
Exercise or conversion

Kathryn Guarini

Director

Non-Qualified Stock Option (right to buy)

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
$719.37 exercise / conversion price
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded September 2, 2026Filed September 3, 2026SEC filing
Exercise or conversion

Joseph J. Larosa

EVP General Counsel and Secret

Common Stock

Value context
$4.69M
Reported price
$381.92 / share
Traded August 19, 2026Filed August 21, 2026SEC filing
Tax or exercise withholding

Joseph J. Larosa

EVP General Counsel and Secret

Common Stock

Value context
$7.49M
Reported price
$830.15 / share
Traded August 19, 2026Filed August 21, 2026SEC filing
Exercise or conversion

Joseph J. Larosa

EVP General Counsel and Secret

Non-Qualified Stock Option (right to buy)

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
$381.92 exercise / conversion price
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded August 19, 2026Filed August 21, 2026SEC filing
Exercise or conversion

Christopher R. Fenimore

EVP Finance CFO

Common Stock

Value context
$2.4M
Reported price
$381.92 / share
Traded August 18, 2026Filed August 20, 2026SEC filing
Tax or exercise withholding

Christopher R. Fenimore

EVP Finance CFO

Common Stock

Value context
$3.74M
Reported price
$813.47 / share
Traded August 18, 2026Filed August 20, 2026SEC filing
Exercise or conversion

Christopher R. Fenimore

EVP Finance CFO

Non-Qualified Stock Option (right to buy)

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
$381.92 exercise / conversion price
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded August 18, 2026Filed August 20, 2026SEC filing
Exercise or conversion

Kathryn Guarini

Director

Common Stock

Value context
$287.75K
Reported price
$719.37 / share
Traded August 10, 2026Filed August 12, 2026SEC filing
Exercise or conversion

Kathryn Guarini

Director

Non-Qualified Stock Option (right to buy)

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
$719.37 exercise / conversion price
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded August 10, 2026Filed August 12, 2026SEC filing
Exercise or conversion

Huda Y. Zoghbi

Director

Common Stock

Value context
$301.35K
Reported price
$376.69 / share
Traded August 10, 2026Filed August 12, 2026SEC filing
Exercise or conversion

Huda Y. Zoghbi

Director

Non-Qualified Stock Option (right to buy)

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
$376.69 exercise / conversion price
Understand this price

This row records an option exercise or conversion. The derivative transaction price is separate from the exercise price; it is not the stock's market price. Its row value is not shown as another stock purchase.

Traded August 10, 2026Filed August 12, 2026SEC filing
Reporting insiderSecurity / transactionAmount / priceValueTraded / disclosedSource
DirectorCommon StockOption exercise or conversion10b5-1400$719.37 / share$287.75KSep 2Filed Sep 3 · 1d laterSEC filing
DirectorNon-Qualified Stock Option (right to buy)Option exercise or conversion10b5-1Derivative units400$719.37 exercise / conversion priceNot a separate purchaseSep 2Filed Sep 3 · 1d laterSEC filing
EVP General Counsel and SecretCommon StockOption exercise or conversion12,282$381.92 / share$4.69MAug 19Filed Aug 21 · 2d laterSEC filing
EVP General Counsel and SecretCommon StockExercise-price or tax withholding9,019$830.15 / share$7.49MAug 19Filed Aug 21 · 2d laterSEC filing
EVP General Counsel and SecretNon-Qualified Stock Option (right to buy)Option exercise or conversionDerivative units12,282$381.92 exercise / conversion priceNot a separate purchaseAug 19Filed Aug 21 · 2d laterSEC filing
EVP Finance CFOCommon StockOption exercise or conversion6,283$381.92 / share$2.4MAug 18Filed Aug 20 · 2d laterSEC filing
EVP Finance CFOCommon StockExercise-price or tax withholding4,599$813.47 / share$3.74MAug 18Filed Aug 20 · 2d laterSEC filing
EVP Finance CFONon-Qualified Stock Option (right to buy)Option exercise or conversionDerivative units6,283$381.92 exercise / conversion priceNot a separate purchaseAug 18Filed Aug 20 · 2d laterSEC filing
DirectorCommon StockOption exercise or conversion10b5-1400$719.37 / share$287.75KAug 10Filed Aug 12 · 2d laterSEC filing
DirectorNon-Qualified Stock Option (right to buy)Option exercise or conversion10b5-1Derivative units400$719.37 exercise / conversion priceNot a separate purchaseAug 10Filed Aug 12 · 2d laterSEC filing
DirectorCommon StockOption exercise or conversion10b5-1800$376.69 / share$301.35KAug 10Filed Aug 12 · 2d laterSEC filing
DirectorNon-Qualified Stock Option (right to buy)Option exercise or conversion10b5-1Derivative units800$376.69 exercise / conversion priceNot a separate purchaseAug 10Filed Aug 12 · 2d laterSEC filing
Explore furtherTechnical lab Company financials Test a strategy Compare company

Why this buying score?

No qualifying common-equity purchases

No eligible common-equity purchase is public by this cutoff within 180 transaction-date days. Other instruments, exercises and routine activity do not contribute purchase points.

+0 pts

This score describes qualifying insider purchases at issuer level. Read the methodology

Sources and coverage

Source
SEC EDGAR · Form 4
Issuer CIK
0000872589
Latest public acceptance
Sep 3, 2026, 08:50 PM UTC
Score calculated
Oct 7, 2026, 12:05 AM UTC
Parser
form4-parser-1.5
Classifier
form4-classifier-1.1
Scoring methodology
insider-experimental-1.1
Availability
Public filing time, not trade date

Open a transaction's SEC filing for the primary evidence. A code P may describe an open-market or private purchase; classification is not proof of intent.

Insider activity can have many explanations. Signal Strength is not a probability of profit or a recommendation to trade.

Congress transactions 4

All Congress filings
Purchase disclosed

Regeneron Pharmaceuticals, Inc. - Common Stock · Stock

The filing reports a purchase for the member.

AAAlan ArmstrongReporting Senate member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
March 27, 2026
Filed July 21, 2026 · 116d laterOriginal report
Sale disclosed

Regeneron Pharmaceuticals, Inc. - Common Stock (REGN) · Stock

The filing reports a sale for the member.

Gilbert Cisneros official portraitGilbert CisnerosReporting House member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
May 15, 2026
Filed June 8, 2026 · 24d laterOriginal report
Purchase disclosed

Regeneron Pharmaceuticals, Inc. - Common Stock (REGN) · Stock

The filing reports a purchase for the member.

Julia Letlow official portraitJulia LetlowReporting House member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
February 12, 2026
Filed March 12, 2026 · 28d laterOriginal report
Purchase disclosed

Regeneron Pharmaceuticals, Inc. - Common Stock (REGN) · Stock

The filing reports a purchase for the member.

Gilbert Cisneros official portraitGilbert CisnerosReporting House member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
November 18, 2025
Filed December 15, 2025 · 27d laterOriginal report
Limited filing history · Market-wide discovery does not establish complete company history. View coverage