Compensation award — excluded from discretionary-purchase analysis.
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
May 14, 2026
Reporting period
Not applicable
Filed with the SEC
May 19, 2026
DirectorGrant / award
Context
Classification
grant award
Code A — grant or award
Planned / mechanical clue
Footnote references vesting of compensation awards
Only flagged when a footnote says so; never inferred
Source receipt
Record ID
0001193125-26-228897
Filed / recorded
May 19, 2026, 12:05 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
Konstantin Konstantinov
Relationship
Director
Security
Common Stock
Table
Non-derivative (Table I)
Transaction date
May 14, 2026
Transaction code
A
Shares / units
995
Price per share
$0.00
Acquired / disposed
Acquired (A)
Shares owned after
3,889
Ownership form
Direct
Amendment
No
Footnotes from the filing
Mr. Konstantinov was awarded 995 restricted stock units. Each restricted stock unit represents a contingent right to receive one share of Repligen Corporation's Common Stock. The restricted stock units vest on the earlier of May 14, 2027, one year from the grant date, or the date of the next annual meeting of the Company's shareholders, which has not yet been determined. The restricted stock units may be settled only by delivering shares of Repligen Corporation's Common Stock, and thus, the grant is being reported in Table 1 as allowed per SEC guidance.