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Avidity Partners Management’s Repligen RGEN Stock Holding History

Avidity Partners Management’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 		$10.6M Hold
77,800
– – 1.7% 10
2026
Q1 		$9.17M Buy
77,800
+27,500
+55% +$3.84M 1.86% 9
2025
Q4 		$8.24M Buy
50,300
+27,000
+116% +$4.23M 2.38% 10
2025
Q3 		$3.11M Sell
23,300
-83,200
-78% -$10.1M 0.71% 31
2025
Q2 		$13.2M Buy
+106,500
New +$13.6M 2.64% 12

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

Avidity Partners Management's RGEN Position: Q2 2026 in Review

Avidity Partners Management held its Repligen (RGEN) position steady in Q2 2026 at 77,800 shares worth $10.6M. The position accounts for 1.7% of the portfolio, ranked #10.

Avidity Partners Management first reported a position in RGEN in Q2 2025 and has held it in 5 quarters since. The position peaked at $13.2M in Q2 2025. 482 funds tracked by Wall St. Rank hold RGEN as of Q2 2026.

  • Avidity Partners Management held 77,800 shares of Repligen worth $10.6M as of Q2 2026.
  • Avidity Partners Management left its Repligen share count unchanged in Q2 2026.
  • Repligen made up 1.7% of Avidity Partners Management's portfolio in Q2 2026, its #10 holding.
  • Avidity Partners Management first reported a position in Repligen in Q2 2025 and has held it in 5 quarters since.
  • Avidity Partners Management's Repligen position peaked at $13.2M in Q2 2025.
  • 482 funds tracked by Wall St. Rank held Repligen as of Q2 2026.

Based on Avidity Partners Management's 13F filing for Q2 2026, filed 14 Aug 2026.