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CenterBook Partners’s Repligen RGEN Stock Holding History

CenterBook 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
2026
Q2 		– Sell
-6,380
Closed -$752K – 846
2026
Q1 		$752K Buy
+6,380
New +$891K 0.04% 400
2025
Q4 		– Sell
-17,672
Closed -$2.36M – 666
2025
Q3 		$2.36M Buy
+17,672
New +$2.15M 0.12% 236
2023
Q3 		– Sell
-9,397
Closed -$1.33M – 488
2023
Q2 		$1.33M Buy
+9,397
New +$1.51M 0.17% 208

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

CenterBook Partners's RGEN Position: Q2 2026 in Review

CenterBook Partners sold out of Repligen (RGEN) in Q2 2026, closing a stake of 6,380 shares — an estimated $752K sold.

CenterBook Partners first reported a position in RGEN in Q2 2023 and held it in 3 quarters. The position peaked at $2.36M in Q3 2025. 477 funds tracked by Wall St. Rank hold RGEN as of Q2 2026.

  • CenterBook Partners reported no remaining Repligen position as of Q2 2026 after selling out during the quarter.
  • CenterBook Partners sold 6,380 Repligen shares in Q2 2026, an estimated $752K.
  • CenterBook Partners first reported a position in Repligen in Q2 2023 and held it in 3 quarters.
  • CenterBook Partners's Repligen position peaked at $2.36M in Q3 2025.
  • 477 funds tracked by Wall St. Rank held Repligen as of Q2 2026.

Based on CenterBook Partners's 13F filing for Q2 2026, filed 11 Aug 2026.