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R

RGEN

Nasdaq

REPLIGEN CORP

Latest disclosureOctober 6, 2026
Insider score Why 0?
0/ 100
Qualifying buys · 30d
$0

0 purchases · 10 sales

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Insider transactions 44

Limited filing history
All44Buying0Selling10Other34
Filters

Last 30 daysNo qualifying insider buying. Sales: $4.98M by 1 insider.

34 of 44 trades · March 5, 2026 – October 5, 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 20 trades on this page.

Exercise or conversion

Olivier Loeillot

Chief Executive Officer

Common Stock

Value context
$651.14K
Reported price
$154.96 / share
Traded October 5, 2026Filed October 6, 2026SEC filing
Exercise or conversion

Olivier Loeillot

Chief Executive Officer

Stock Option (Right to Buy)

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
$154.96 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 October 5, 2026Filed October 6, 2026SEC filing
Tax or exercise withholding

Olivier Loeillot

Chief Executive Officer

Common Stock

Value context
$226.76K
Reported price
$181.70 / share
Traded October 2, 2026Filed October 5, 2026SEC filing
Tax or exercise withholding

Jason K. Garland

CFO

Common Stock

Value context
$79.86K
Reported price
$189.68 / share
Traded September 25, 2026Filed September 28, 2026SEC filing
Exercise or conversion

Olivier Loeillot

Chief Executive Officer

Common Stock

Value context
$1.3M
Reported price
$154.96 / share
Traded September 24, 2026Filed September 25, 2026SEC filing
Exercise or conversion

Olivier Loeillot

Chief Executive Officer

Common Stock

Value context
$705.74K
Reported price
$155.38 / share
Traded September 24, 2026Filed September 25, 2026SEC filing
Exercise or conversion

Olivier Loeillot

Chief Executive Officer

Stock Option (Right to Buy)

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
$154.96 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 24, 2026Filed September 25, 2026SEC filing
Exercise or conversion

Olivier Loeillot

Chief Executive Officer

Stock Option (Right to Buy)

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
$155.38 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 24, 2026Filed September 25, 2026SEC filing
Exercise or conversion

Olivier Loeillot

Chief Executive Officer

Common Stock

Value context
$769.35K
Reported price
$141.79 / share
Traded September 21, 2026Filed September 22, 2026SEC filing
Exercise or conversion

Olivier Loeillot

Chief Executive Officer

Stock Option (Right to Buy)

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
$141.79 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 21, 2026Filed September 22, 2026SEC filing
Tax or exercise withholding

Olivier Loeillot

Chief Executive Officer

Common Stock

Value context
$482.03K
Reported price
$169.61 / share
Traded September 3, 2026Filed September 8, 2026SEC filing
Award disclosed

Violetta Hughes

CHIEF ACCOUNTING OFFICER

Common Stock

Value context
Non-cash award
Reported price
Award · no purchase price
Understand this price

The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.

Traded March 5, 2026Filed September 2, 2026SEC filing
Tax or exercise withholding

Violetta Hughes

CHIEF ACCOUNTING OFFICER

Common Stock

Value context
$47.1K
Reported price
$170.02 / share
Traded September 1, 2026Filed September 2, 2026SEC filing
Exercise or conversion

Olivier Loeillot

Chief Executive Officer

Common Stock

Value context
$769.35K
Reported price
$141.79 / share
Traded August 20, 2026Filed August 21, 2026SEC filing
Exercise or conversion

Olivier Loeillot

Chief Executive Officer

Stock Option (Right to Buy)

Derivative security · not the ordinary share price.

Value context
Not a separate purchase
Exercise / conversion price
$141.79 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 20, 2026Filed August 21, 2026SEC filing
Award disclosed

Martin D. Madaus

Director

Common Stock

Value context
Non-cash award
Reported price
Award · no purchase price
Understand this price

The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.

Traded May 14, 2026Filed May 18, 2026SEC filing
Award disclosed

Martin D. Madaus

Director

Stock Option (Right to Buy)

Derivative security · not the ordinary share price.

Value context
Non-cash award
Reported price
Award · no purchase price
Understand this price

The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.

Traded May 14, 2026Filed May 18, 2026SEC filing
Award disclosed

Konstantin Konstantinov

Director

Common Stock

Value context
Non-cash award
Reported price
Award · no purchase price
Understand this price

The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.

Traded May 14, 2026Filed May 18, 2026SEC filing
Award disclosed

Konstantin Konstantinov

Director

Stock Option (Right to Buy)

Derivative security · not the ordinary share price.

Value context
Non-cash award
Reported price
Award · no purchase price
Understand this price

The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.

Traded May 14, 2026Filed May 18, 2026SEC filing
Award disclosed

Manner Carrie Eglinton

Director

Common Stock

Value context
Non-cash award
Reported price
Award · no purchase price
Understand this price

The filing reports a zero transaction price for this award. It does not mean the awarded securities have no market value.

Traded May 14, 2026Filed May 18, 2026SEC filing
Reporting insiderSecurity / transactionAmount / priceValueTraded / disclosedSource
Chief Executive OfficerCommon StockOption exercise or conversion10b5-14,202$154.96 / share$651.14KOct 5Filed Oct 6 · 1d laterSEC filing
Chief Executive OfficerStock Option (Right to Buy)Option exercise or conversion10b5-1Derivative units4,202$154.96 exercise / conversion priceNot a separate purchaseOct 5Filed Oct 6 · 1d laterSEC filing
Chief Executive OfficerCommon StockExercise-price or tax withholding1,248$181.70 / share$226.76KOct 2Filed Oct 5 · 3d laterSEC filing
CFOCommon StockExercise-price or tax withholding421$189.68 / share$79.86KSep 25Filed Sep 28 · 3d laterSEC filing
Chief Executive OfficerCommon StockOption exercise or conversion10b5-18,404$154.96 / share$1.3MSep 24Filed Sep 25 · 1d laterSEC filing
Chief Executive OfficerCommon StockOption exercise or conversion10b5-14,542$155.38 / share$705.74KSep 24Filed Sep 25 · 1d laterSEC filing
Chief Executive OfficerStock Option (Right to Buy)Option exercise or conversion10b5-1Derivative units8,404$154.96 exercise / conversion priceNot a separate purchaseSep 24Filed Sep 25 · 1d laterSEC filing
Chief Executive OfficerStock Option (Right to Buy)Option exercise or conversion10b5-1Derivative units4,542$155.38 exercise / conversion priceNot a separate purchaseSep 24Filed Sep 25 · 1d laterSEC filing
Chief Executive OfficerCommon StockOption exercise or conversion10b5-15,426$141.79 / share$769.35KSep 21Filed Sep 22 · 1d laterSEC filing
Chief Executive OfficerStock Option (Right to Buy)Option exercise or conversion10b5-1Derivative units5,426$141.79 exercise / conversion priceNot a separate purchaseSep 21Filed Sep 22 · 1d laterSEC filing
Chief Executive OfficerCommon StockExercise-price or tax withholding10b5-12,842$169.61 / share$482.03KSep 3Filed Sep 8 · 5d laterSEC filing
CHIEF ACCOUNTING OFFICERCommon StockGrant or award2,466Award · no purchase priceNon-cash awardMar 5Filed Sep 2 · 181d laterSEC filing
CHIEF ACCOUNTING OFFICERCommon StockExercise-price or tax withholding277$170.02 / share$47.1KSep 1Filed Sep 2 · 1d laterSEC filing
Chief Executive OfficerCommon StockOption exercise or conversion10b5-15,426$141.79 / share$769.35KAug 20Filed Aug 21 · 1d laterSEC filing
Chief Executive OfficerStock Option (Right to Buy)Option exercise or conversion10b5-1Derivative units5,426$141.79 exercise / conversion priceNot a separate purchaseAug 20Filed Aug 21 · 1d laterSEC filing
DirectorCommon StockGrant or award995Award · no purchase priceNon-cash awardMay 14Filed May 18 · 4d laterSEC filing
DirectorStock Option (Right to Buy)Grant or awardDerivative units2,239Award · no purchase priceNon-cash awardMay 14Filed May 18 · 4d laterSEC filing
DirectorCommon StockGrant or award995Award · no purchase priceNon-cash awardMay 14Filed May 18 · 4d laterSEC filing
DirectorStock Option (Right to Buy)Grant or awardDerivative units2,239Award · no purchase priceNon-cash awardMay 14Filed May 18 · 4d laterSEC filing
DirectorCommon StockGrant or award995Award · no purchase priceNon-cash awardMay 14Filed May 18 · 4d laterSEC filing

Showing the latest 20 of 34 trades. Show all 34 trades

Congress transactions 3

All Congress filings
Sale disclosed

Repligen Corporation - Common Stock (RGEN) · Stock

The filing reports a sale for a spouse.

Lisa McClain official portraitLisa McClainReporting House member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
October 31, 2025
Filed November 21, 2025 · 21d laterOriginal report
Purchase disclosed

Repligen Corporation - Common Stock (RGEN) · Stock

The filing reports a purchase for a spouse.

Lisa McClain official portraitLisa McClainReporting House member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
October 30, 2025
Filed November 21, 2025 · 22d laterOriginal report
Sale disclosed

Repligen Corporation - Common Stock (RGEN) · Stock

The filing reports a sale for a spouse.

Lisa McClain official portraitLisa McClainReporting House member
Reported amount
$1,001 – $15,000Reported range; exact amount not disclosed.
Trade date
October 30, 2025
Filed November 21, 2025 · 22d laterOriginal report
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

Limited filing history · Market-wide discovery does not establish complete company history. View coverage
Source
SEC EDGAR · Form 4
Issuer CIK
0000730272
Latest public acceptance
Oct 6, 2026, 08:18 PM UTC
Score calculated
Oct 8, 2026, 12:04 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.