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AlphaQuest’s Repligen RGEN Stock Holding History

AlphaQuest’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 		– Sell
-1,207
Closed -$198K – 1624
2025
Q4 		$198K Sell
1,207
-1,884
-61% -$295K 0.01% 1451
2025
Q3 		$413K Buy
3,091
+2,253
+269% +$274K 0.03% 925
2025
Q2 		$104K Buy
+838
New +$107K 0.01% 1415
2024
Q4 		– Sell
-1,118
Closed -$166K – 1959
2024
Q3 		$166K Buy
+1,118
New +$160K 0.01% 1132
2024
Q2 		– Sell
-6
Closed -$1.1K – 1834
2024
Q1 		$1.1K Buy
+6
New +$1.14K ﹤0.01% 1363

Other funds holding RGEN

BlackRock
BlackRock New York $6.73T AUM 46.02% 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
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return
MC
Maverick Capital Dallas, Texas $11.3B AUM 76.6% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return

AlphaQuest's RGEN Position: Q1 2026 in Review

AlphaQuest sold out of Repligen (RGEN) in Q1 2026, closing a stake of 1,207 shares — an estimated $198K sold.

AlphaQuest first reported a position in RGEN in Q1 2024 and held it in 5 quarters. The position peaked at $413K in Q3 2025. 445 funds tracked by Wall St. Rank hold RGEN as of Q1 2026.

  • AlphaQuest reported no remaining Repligen position as of Q1 2026 after selling out during the quarter.
  • AlphaQuest sold 1,207 Repligen shares in Q1 2026, an estimated $198K.
  • AlphaQuest first reported a position in Repligen in Q1 2024 and held it in 5 quarters.
  • AlphaQuest's Repligen position peaked at $413K in Q3 2025.
  • 445 funds tracked by Wall St. Rank held Repligen as of Q1 2026.

Based on AlphaQuest's 13F filing for Q1 2026.