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 		$81.9K Buy
+600
New +$73.7K ﹤0.01% 4001
2025
Q4 		– Sell
-100
Closed -$13.4K – 5023
2025
Q3 		$13.4K Buy
+100
New +$12.1K ﹤0.01% 4257
2025
Q1 		– Sell
-8,000
Closed -$1.15M – 4995
2024
Q4 		$1.15M Buy
8,000
+5,200
+186% +$746K ﹤0.01% 2267
2024
Q3 		$417K Buy
2,800
+600
+27% +$86K ﹤0.01% 3469
2024
Q2 		$277K Buy
2,200
+400
+22% +$62.7K ﹤0.01% 4039
2024
Q1 		$331K Sell
1,800
-100
-5% -$19K ﹤0.01% 3562
2023
Q4 		$342K Sell
1,900
-6,400
-77% -$996K ﹤0.01% 3262
2023
Q3 		$1.32M Buy
8,300
+4,800
+137% +$785K ﹤0.01% 2048
2023
Q2 		$495K Buy
+3,500
New +$561K ﹤0.01% 2448
2020
Q1 		– Sell
-2,700
Closed -$250K – 1524
2019
Q4 		$250K Sell
2,700
-8,000
-75% -$672K 0.02% 1013
2019
Q3 		$821K Sell
10,700
-9,400
-47% -$822K 0.05% 525
2019
Q2 		$1.73M Buy
20,100
+19,900
+9,950% +$1.36M 0.19% 125
2019
Q1 		$12K Buy
+200
New +$11.5K ﹤0.01% 1390

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.