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MASSACHUSETTS FINANCIAL SERVICES CO /MA/

Position in RGEN — Repligen Corp

CIK 912938 Boston, MA

Position in RGEN

as of Mar 31, 2026 · filed May 14, 2026
Position Value
$164,655,214
-$34,521,037 QoQ
Shares Held
1,397,515
+15.0% QoQ
Ownership
2.48%
of shares outstanding
% of Portfolio
0.06%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Sep 2022
5 quarters on record
Voting authority Sole 79.29954240204935.ToString("F0")% Shared 16.514169794241923.ToString("F0")% None 4.186287803708725.ToString("F0")%

Common Shares in RGEN Over Time

Shares Held

Position Value (USD)

Position in Medical Instruments & Supplies

Healthcare · as of Mar 31, 2026

MASSACHUSETTS FINANCIAL SERVICES CO /MA/ holds $2,615,828,918 across 16 Medical Instruments & Supplies names. RGEN ranks #4 (6.3% of the industry book) .

# Ticker Company Shares Value (USD) Open
4 RGEN
Repligen Corp
This page
1,397,515 $164,655,214

All Filings in RGEN

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5 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $164,655,214 1,397,515
2025-12-31 $199,176,251 1,215,527
2023-03-31 $45,015,085 267,374
2022-12-31 $44,779,615 264,483
2022-09-30 $36,402,248 194,550