Janus Henderson Group
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Janus Henderson Group’s Repligen RGEN Stock Holding History

Janus Henderson Group’s Portfolio RGEN Stock Details RGEN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$2.87M Hold
24,316
– – ﹤0.01% 1178
2025
Q4 		$3.99M Buy
24,316
+1,500
+7% +$235K ﹤0.01% 1020
2025
Q3 		$3.05M Buy
22,816
+816
+4% +$99.1K ﹤0.01% 1129
2025
Q2 		$2.74M Sell
22,000
-1,700
-7% -$216K ﹤0.01% 1143
2025
Q1 		$3.16M Hold
23,700
– – ﹤0.01% 1059
2024
Q4 		$3.41M Hold
23,700
– – ﹤0.01% 1058
2024
Q3 		$3.53M Buy
23,700
+21,201
+848% +$3.04M ﹤0.01% 1027
2024
Q2 		$315K Sell
2,499
-1,469
-37% -$230K ﹤0.01% 2187
2024
Q1 		$729K Sell
3,968
-53,315
-93% -$10.2M ﹤0.01% 1819
2023
Q4 		$10.3M Buy
57,283
+8,502
+17% +$1.32M 0.01% 662
2023
Q3 		$7.76M Buy
48,781
+10,607
+28% +$1.73M 0.01% 715
2023
Q2 		$5.4M Sell
38,174
-273
-0.7% -$43.8K ﹤0.01% 844
2023
Q1 		$6.47M Buy
38,447
+34,834
+964% +$6.22M ﹤0.01% 806
2022
Q4 		$612K Sell
3,613
-45,405
-93% -$8.24M ﹤0.01% 1605
2022
Q3 		$9.17M Buy
49,018
+38,791
+379% +$8.18M ﹤0.01% 842
2022
Q2 		$1.66M Sell
10,227
-56
-0.5% -$8.86K ﹤0.01% 1106
2022
Q1 		$1.93M Sell
10,283
-41
-0.4% -$7.79K ﹤0.01% 1243
2021
Q4 		$2.73M Buy
10,324
+5,060
+96% +$1.36M ﹤0.01% 1197
2021
Q3 		$1.52M Buy
+5,264
New +$1.35M ﹤0.01% 1303
2021
Q2 		– Sell
-32,025
Closed -$6.23M – 1661
2021
Q1 		$6.23M Buy
32,025
+9,186
+40% +$1.88M ﹤0.01% 977
2020
Q4 		$4.38M Sell
22,839
-103
-0.4% -$18.7K ﹤0.01% 987
2020
Q3 		$3.38M Buy
+22,942
New +$3.28M ﹤0.01% 974

Other funds holding RGEN

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
UCFA
United Capital Financial Advisors Irving, Texas $16.3B AUM 16.34% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $544B AUM 28.31% 1-Year Est. Return
MC
Maverick Capital Dallas, Texas $8.67B AUM 48.76% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $298B AUM 21.96% 1-Year Est. Return

Janus Henderson Group's RGEN Position: Q1 2026 in Review

Janus Henderson Group held its Repligen (RGEN) position steady in Q1 2026 at 24,316 shares worth $2.87M. The position accounts for ﹤0.01% of the portfolio, ranked #1178.

Janus Henderson Group first reported a position in RGEN in Q3 2020 and has held it in 22 quarters since. The position peaked at $10.3M in Q4 2023. 441 funds tracked by Wall St. Rank hold RGEN as of Q1 2026.

  • Janus Henderson Group held 24,316 shares of Repligen worth $2.87M as of Q1 2026.
  • Janus Henderson Group left its Repligen share count unchanged in Q1 2026.
  • Repligen made up ﹤0.01% of Janus Henderson Group's portfolio in Q1 2026, its #1178 holding.
  • Janus Henderson Group first reported a position in Repligen in Q3 2020 and has held it in 22 quarters since.
  • Janus Henderson Group's Repligen position peaked at $10.3M in Q4 2023.
  • 441 funds tracked by Wall St. Rank held Repligen as of Q1 2026.

Based on Janus Henderson Group's 13F filing for Q1 2026, filed 15 May 2026.