Adage Capital Partners
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Adage Capital Partners’s Repligen RGEN Stock Holding History

Adage Capital Partners’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
Q4 		– Sell
-5,000
Closed -$668K – 992
2025
Q3 		$668K Buy
+5,000
New +$607K ﹤0.01% 840
2024
Q4 		– Sell
-100,000
Closed -$14.9M – 947
2024
Q3 		$14.9M Buy
100,000
+50,000
+100% +$7.17M 0.03% 530
2024
Q2 		$6.3M Sell
50,000
-65,000
-57% -$10.2M 0.01% 683
2024
Q1 		$21.2M Buy
+115,000
New +$21.9M 0.04% 434
2022
Q1 		– Sell
-40,000
Closed -$10.6M – 1121
2021
Q4 		$10.6M Buy
+40,000
New +$10.8M 0.02% 674

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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 $3.38T AUM 44.17% 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

Adage Capital Partners's RGEN Position: Q4 2025 in Review

Adage Capital Partners sold out of Repligen (RGEN) in Q4 2025, closing a stake of 5,000 shares — an estimated $668K sold.

Adage Capital Partners first reported a position in RGEN in Q4 2021 and held it in 5 quarters. The position peaked at $21.2M in Q1 2024. 474 funds tracked by Wall St. Rank hold RGEN as of Q4 2025.

  • Adage Capital Partners reported no remaining Repligen position as of Q4 2025 after selling out during the quarter.
  • Adage Capital Partners sold 5,000 Repligen shares in Q4 2025, an estimated $668K.
  • Adage Capital Partners first reported a position in Repligen in Q4 2021 and held it in 5 quarters.
  • Adage Capital Partners's Repligen position peaked at $21.2M in Q1 2024.
  • 474 funds tracked by Wall St. Rank held Repligen as of Q4 2025.

Based on Adage Capital Partners's 13F filing for Q4 2025, filed 17 Feb 2026.