Assenagon Asset Management
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Assenagon Asset Management’s Repligen RGEN Stock Holding History

Assenagon Asset Management’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
Q2 		$9.69M Buy
+70,995
New +$8.72M 0.01% 537
2025
Q4 		– Sell
-40,569
Closed -$5.42M – 1240
2025
Q3 		$5.42M Buy
+40,569
New +$4.93M 0.01% 604
2024
Q3 		– Sell
-30,189
Closed -$3.81M – 1459
2024
Q2 		$3.81M Buy
30,189
+27,280
+938% +$4.28M 0.01% 712
2024
Q1 		$535K Sell
2,909
-73
-2% -$13.9K ﹤0.01% 1198
2023
Q4 		$536K Buy
2,982
+49
+2% +$7.63K ﹤0.01% 1244
2023
Q3 		$466K Sell
2,933
-19
-0.6% -$3.11K ﹤0.01% 1208
2023
Q2 		$418K Sell
2,952
-60
-2% -$9.62K ﹤0.01% 1159
2023
Q1 		$507K Sell
3,012
-182
-6% -$32.5K ﹤0.01% 1217
2022
Q4 		$541K Buy
3,194
+694
+28% +$126K ﹤0.01% 1158
2022
Q3 		$468K Buy
2,500
+113
+5% +$23.8K ﹤0.01% 1109
2022
Q2 		$388K Sell
2,387
-46,455
-95% -$7.35M ﹤0.01% 1275
2022
Q1 		$9.19M Buy
48,842
+41,343
+551% +$7.85M 0.03% 388
2021
Q4 		$1.99M Buy
7,499
+6,301
+526% +$1.7M 0.01% 824
2021
Q3 		$346K Sell
1,198
-40,879
-97% -$10.5M ﹤0.01% 1134
2021
Q2 		$8.4M Sell
42,077
-8,312
-16% -$1.61M 0.03% 376
2021
Q1 		$9.8M Buy
50,389
+18,486
+58% +$3.79M 0.04% 344
2020
Q4 		$6.11M Buy
31,903
+18,760
+143% +$3.41M 0.03% 328
2020
Q3 		$1.94M Buy
+13,143
New +$1.88M 0.01% 598
2020
Q1 		– Sell
-12,741
Closed -$1.18M – 962
2019
Q4 		$1.18M Buy
+12,741
New +$1.07M 0.01% 547
2018
Q1 		– Sell
-20,200
Closed -$733K – 711
2017
Q4 		$733K Sell
20,200
-57,160
-74% -$2.07M 0.01% 574
2017
Q3 		$2.96M Buy
+77,360
New +$3.24M 0.03% 301

Other funds holding RGEN

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
UCFA
United Capital Financial Advisors Irving, Texas $18.2B AUM 22.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
MC
Maverick Capital Dallas, Texas $11.3B AUM 76.6% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return
WA
Wasatch Advisors Salt Lake City, Utah $15.3B AUM 25.06% 1-Year Est. Return

Assenagon Asset Management's RGEN Position: Q2 2026 in Review

Assenagon Asset Management opened a new position in Repligen (RGEN) in Q2 2026: 70,995 shares worth $9.69M. The stake represents 0.01% of the portfolio and ranks #537 among its holdings. This is a return to the name: Assenagon Asset Management previously reported a position in RGEN as recently as Q3 2025.

Assenagon Asset Management first reported a position in RGEN in Q3 2017 and has held it in 21 quarters since. The position peaked at $9.8M in Q1 2021. 477 funds tracked by Wall St. Rank hold RGEN as of Q2 2026.

  • Assenagon Asset Management held 70,995 shares of Repligen worth $9.69M as of Q2 2026.
  • Repligen was a new Assenagon Asset Management position in Q2 2026.
  • Repligen made up 0.01% of Assenagon Asset Management's portfolio in Q2 2026, its #537 holding.
  • Assenagon Asset Management first reported a position in Repligen in Q3 2017 and has held it in 21 quarters since.
  • Assenagon Asset Management's Repligen position peaked at $9.8M in Q1 2021.
  • 477 funds tracked by Wall St. Rank held Repligen as of Q2 2026.

Based on Assenagon Asset Management's 13F filing for Q2 2026, filed 8 Jul 2026.