Twin Tree Management
RGEN icon

Twin Tree Management’s Repligen RGEN Stock Holding History

Twin Tree 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
2025
Q2 		– Sell
-226
Closed -$28.8K – 1872
2025
Q1 		$28.8K Buy
+226
New +$34.8K ﹤0.01% 1474
2023
Q4 		– Sell
-14,714
Closed -$2.29M – 1557
2023
Q3 		$2.34M Buy
14,714
+6,819
+86% +$1.11M 0.01% 845
2023
Q2 		$1.12M Sell
7,895
-11,639
-60% -$1.87M ﹤0.01% 994
2023
Q1 		$3.29M Sell
19,534
-53,898
-73% -$9.62M 0.01% 819
2022
Q4 		$12.4M Buy
73,432
+9,481
+15% +$1.72M 0.03% 514
2022
Q3 		$12M Buy
+63,951
New +$13.5M 0.02% 502
2022
Q2 		– Sell
-18,942
Closed -$3M – 1800
2022
Q1 		$3.56M Buy
18,942
+12,787
+208% +$2.43M 0.01% 1021
2021
Q4 		$1.63M Buy
+6,155
New +$1.66M ﹤0.01% 1140
2021
Q2 		– Sell
-1,804
Closed -$351K – 1574
2021
Q1 		$351K Buy
+1,804
New +$370K ﹤0.01% 1101
2020
Q3 		– Sell
-6,617
Closed -$818K – 1534
2020
Q2 		$818K Buy
6,617
+5,902
+825% +$694K ﹤0.01% 1090
2020
Q1 		$69K Buy
+715
New +$69K ﹤0.01% 1122
2019
Q2 		– Sell
-131
Closed -$8K – 1505
2019
Q1 		$8K Buy
+131
New +$7.53K ﹤0.01% 1201

Other funds holding RGEN

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 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
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return

Twin Tree Management's RGEN Position: Q2 2025 in Review

Twin Tree Management sold out of Repligen (RGEN) in Q2 2025, closing a stake of 226 shares — an estimated $28.8K sold.

Twin Tree Management first reported a position in RGEN in Q1 2019 and held it in 12 quarters. The position peaked at $12.4M in Q4 2022. 444 funds tracked by Wall St. Rank hold RGEN as of Q2 2025.

  • Twin Tree Management reported no remaining Repligen position as of Q2 2025 after selling out during the quarter.
  • Twin Tree Management sold 226 Repligen shares in Q2 2025, an estimated $28.8K.
  • Twin Tree Management first reported a position in Repligen in Q1 2019 and held it in 12 quarters.
  • Twin Tree Management's Repligen position peaked at $12.4M in Q4 2022.
  • 444 funds tracked by Wall St. Rank held Repligen as of Q2 2025.

Based on Twin Tree Management's 13F filing for Q2 2025, filed 28 Jul 2025.