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Avidity Partners Management LP

Position in RGEN — Repligen Corp

CIK 1791827 DALLAS, TX

Position in RGEN

as of Mar 31, 2026 · filed May 28, 2026
Position Value
$9,166,396
+$924,238 QoQ
Shares Held
77,800
+54.7% QoQ
Ownership
0.138%
of shares outstanding
% of Portfolio
1.57%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Jun 2025
4 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in RGEN Over Time

Shares Held

Position Value (USD)

Position in Medical Instruments & Supplies

Healthcare · as of Mar 31, 2026

Avidity Partners Management LP holds $9,998,896 across 2 Medical Instruments & Supplies names. RGEN ranks #1 (91.7% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 RGEN
Repligen Corp
This page
77,800 $9,166,396

All Filings in RGEN

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4 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $9,166,396 77,800
2025-12-31 $8,242,158 50,300
2025-09-30 $3,114,511 23,300
2025-06-30 $13,246,470 106,500