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1,478 RGEN shares were withheld to cover taxes or exercise cost (Officer) | OQRO

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Repligen
1,478 RGEN shares were withheld to cover taxes or exercise cost (Offic

Insider trades

Insider trade

1,478 RGEN shares were withheld to cover taxes or exercise cost (Officer)

Traded Feb 27, 2026 · Filed Mar 4, 2026

RGERepligenRGEN

1,478
Shares · @ $128.73

Why it stands out

Routine share withholding; mechanical by default.

Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell

View the official recordSEC Form 4 — Statement of Changes in Beneficial Ownership

All the details

Dates, kept separate

Transaction date: Feb 27, 2026
Reporting period: Not applicable
Filed with the SEC: Mar 4, 2026

OfficerTax withholding

Context

Classification

tax withholding

Code F — shares delivered to pay exercise price or tax liability

Planned / mechanical clue

Tax mechanics (code F)

Only flagged when a footnote says so; never inferred

Source receipt

Record ID: 0001193125-26-087669

Ask Claude or ChatGPT about these filings. Connect OQRO in a minute, then ask things like “which insiders bought this week?”

Filed / recorded

Mar 4, 2026, 12:02 AM UTC

Added to OQRO

Oct 6, 2026, 8:46 PM UTC

Parser

form4-xml-v2

Data quality

Verified: identifiers matched exactly

Issuer

REPLIGEN CORP

Issuer CIK

730272

Ticker

RGEN

Reporting person

James Bylund

Relationship

Officer

Officer title

Chief Operating Officer

Security

Common Stock

Table

Non-derivative (Table I)

Transaction date

Feb 27, 2026

Transaction code

Shares / units

1,478

Price per share

$128.73

Acquired / disposed

Disposed (D)

Shares owned after

20,042

Ownership form

Direct

Amendment

Footnotes from the filing

Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations of the reporting person that arose upon the release of restricted stock units.

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Ralf KuriyelSenior VP, R&D

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Ralf KuriyelSenior VP, R&D

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5,669Derivative units

Traded Mar 5 · filed 18 days later

Compensation award — excluded from discretionary-purchase analysis.

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Olivier LoeillotChief Executive Officer

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24KShares

Traded Mar 5 · filed 18 days later

Compensation award — excluded from discretionary-purchase analysis.

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