Walleye Capital
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Walleye Capital’s Repligen RGEN Stock Holding History

Walleye Capital’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 		$233K Buy
+1,707
New +$210K ﹤0.01% 3379
2026
Q1 		– Sell
-417,110
Closed -$68.3M – 4894
2025
Q4 		$68.3M Buy
417,110
+231,353
+125% +$36.2M 0.21% 33
2025
Q3 		$24.8M Buy
185,757
+94,157
+103% +$11.4M 0.09% 191
2025
Q2 		$11.4M Buy
91,600
+11,124
+14% +$1.42M 0.04% 442
2025
Q1 		$10.2M Buy
80,476
+34,996
+77% +$5.39M 0.05% 438
2024
Q4 		$6.55M Sell
45,480
-49,227
-52% -$7.06M 0.02% 902
2024
Q3 		$14.1M Buy
94,707
+51,597
+120% +$7.4M 0.03% 510
2024
Q2 		$5.43M Buy
43,110
+42,957
+28,076% +$6.73M 0.01% 1222
2024
Q1 		$28.1K Buy
+153
New +$29.1K ﹤0.01% 4833
2023
Q3 		– Sell
-3,082
Closed -$504K – 5250
2023
Q2 		$436K Buy
+3,082
New +$494K ﹤0.01% 2541
2022
Q2 		– Sell
-2,305
Closed -$434K – 2674
2022
Q1 		$434K Buy
+2,305
New +$438K 0.01% 1088
2021
Q4 		– Sell
-1,414
Closed -$409K – 2275
2021
Q3 		$409K Buy
1,414
+354
+33% +$90.8K 0.01% 876
2021
Q2 		$212K Buy
+1,060
New +$206K 0.01% 1052
2021
Q1 		– Sell
-1,311
Closed -$251K – 1316
2020
Q4 		$251K Buy
+1,311
New +$239K 0.02% 670
2019
Q4 		– Sell
-2,864
Closed -$241K – 2193
2019
Q3 		$220K Buy
2,864
+2,704
+1,690% +$237K 0.01% 1161
2019
Q2 		$14K Buy
+160
New +$10.9K ﹤0.01% 1565

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

Walleye Capital's RGEN Position: Q2 2026 in Review

Walleye Capital opened a new position in Repligen (RGEN) in Q2 2026: 1,707 shares worth $233K. The stake represents ﹤0.01% of the portfolio and ranks #3379 among its holdings. This is a return to the name: Walleye Capital previously reported a position in RGEN as recently as Q4 2025.

Walleye Capital first reported a position in RGEN in Q2 2019 and has held it in 16 quarters since. The position peaked at $68.3M in Q4 2025. 482 funds tracked by Wall St. Rank hold RGEN as of Q2 2026.

  • Walleye Capital held 1,707 shares of Repligen worth $233K as of Q2 2026.
  • Repligen was a new Walleye Capital position in Q2 2026.
  • Repligen made up ﹤0.01% of Walleye Capital's portfolio in Q2 2026, its #3379 holding.
  • Walleye Capital first reported a position in Repligen in Q2 2019 and has held it in 16 quarters since.
  • Walleye Capital's Repligen position peaked at $68.3M in Q4 2025.
  • 482 funds tracked by Wall St. Rank held Repligen as of Q2 2026.

Based on Walleye Capital's 13F filing for Q2 2026, filed 3 Aug 2026.