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Blue Whale Capital’s Repligen RGEN Stock Holding History

Blue Whale 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 		$24.3M Sell
178,377
-225,823
-56% -$27.7M 0.77% 23
2026
Q1 		$47.6M Buy
404,200
+95,733
+31% +$13.4M 2.26% 15
2025
Q4 		$50.5M Buy
308,467
+65,366
+27% +$10.2M 2.59% 15
2025
Q3 		$32.5M Sell
243,101
-44,585
-15% -$5.42M 1.8% 19
2025
Q2 		$35.8M Buy
+287,686
New +$36.6M 2.34% 16

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

Blue Whale Capital's RGEN Position: Q2 2026 in Review

Blue Whale Capital reduced its Repligen (RGEN) stake by 56% in Q2 2026, selling an estimated $27.7M and leaving 178,377 shares worth $24.3M. The position accounts for 0.77% of the portfolio, ranked #23.

Blue Whale Capital first reported a position in RGEN in Q2 2025 and has held it in 5 quarters since. The position peaked at $50.5M in Q4 2025. 482 funds tracked by Wall St. Rank hold RGEN as of Q2 2026.

  • Blue Whale Capital held 178,377 shares of Repligen worth $24.3M as of Q2 2026.
  • Blue Whale Capital sold 225,823 Repligen shares in Q2 2026, an estimated $27.7M.
  • Repligen made up 0.77% of Blue Whale Capital's portfolio in Q2 2026, its #23 holding.
  • Blue Whale Capital first reported a position in Repligen in Q2 2025 and has held it in 5 quarters since.
  • Blue Whale Capital's Repligen position peaked at $50.5M in Q4 2025.
  • 482 funds tracked by Wall St. Rank held Repligen as of Q2 2026.

Based on Blue Whale Capital's 13F filing for Q2 2026, filed 13 Aug 2026.