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 OwnershipAll the details
Dates, kept separate
Transaction date
Sep 3, 2026
Reporting period
Not applicable
Filed with the SEC
Sep 9, 2026
CEOTax 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
0001628280-26-060911
Filed / recorded
Sep 9, 2026, 12:13 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
Olivier Loeillot
Relationship
Director, Officer
Officer title
Chief Executive Officer
Security
Common Stock
Table
Non-derivative (Table I)
Transaction date
Sep 3, 2026
Transaction code
F
Shares / units
2,842
Price per share
$169.61
Acquired / disposed
Disposed (D)
Shares owned after
51,404
Ownership form
Direct
Amendment
No
Footnotes from the filing
Represents the number of shares withheld by the Issuer to satisfy the tax withholding obligations of the reporting person that arose upon the release of restricted stock units.