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CONGRESS ASSET MANAGEMENT CO

Position in RGEN — Repligen Corp

CIK 897378 BOSTON, MA

Position in RGEN

as of Jun 30, 2026 · filed Jul 7, 2026
Position Value
$138,108,115
+$44,103,426 QoQ
Shares Held
1,012,226
+26.9% QoQ
Ownership
1.79%
of shares outstanding
% of Portfolio
0.86%
of 13F equity value
Holder Rank
#2
of 83 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 95% Shared 3% None 2%

Common Shares in RGEN Over Time

Shares Held

Position Value (USD)

Position in Medical Instruments & Supplies

Healthcare · as of Jun 30, 2026

CONGRESS ASSET MANAGEMENT CO holds $433,026,921 across 6 Medical Instruments & Supplies names. RGEN ranks #1 (31.9% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 RGEN
Repligen Corp
This page
1,012,226 $138,108,115

All Filings in RGEN

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $138,108,115 1,012,226
2026-03-31 $94,004,689 797,867
2025-12-31 $122,289,701 746,306
2025-09-30 $29,219,192 218,592
2025-06-30 $18,961,731 152,450
2025-03-31 $16,441,825 129,219
2024-12-31 $16,786,282 116,620
2024-09-30 $15,442,158 103,764
2024-06-30 $11,839,807 93,922
2024-03-31 $16,187,350 88,013
2023-12-31 $13,808,640 76,800
2023-09-30 $3,805,427 23,932
2023-06-30 $2,692,266 19,032
2023-03-31 $2,863,803 17,010
2022-12-31 $2,710,991 16,012
2022-09-30 $2,503,157 13,378
2022-06-30 $3,183,689 19,604
2022-03-31 $58,545,645 311,264
2021-12-31 $63,316,887 239,076
2021-09-30 $92,110,071 318,731
2021-06-30 $2,573,700 12,893
2021-03-31 $11,044,237 56,809
2020-12-31 $10,921,376 56,992
2020-09-30 $9,377,347 63,558
2020-06-30 $8,072,227 65,304
2020-03-31 $7,062,190 73,153