Rossby Financial
RGEN icon

Rossby Financial’s Repligen RGEN Stock Holding History

Rossby Financial’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
Q3 		$12.9K Sell
67
-36
-35% -$5.86K ﹤0.01% 1419
2026
Q2 		$14.1K Buy
103
+34
+49% +$4.18K ﹤0.01% 1074
2026
Q1 		$8.16K Buy
69
+59
+590% +$8.24K ﹤0.01% 1334
2025
Q4 		$1.64K Buy
10
+2
+25% +$313 ﹤0.01% 1421
2025
Q3 		$1.17K Buy
+8
New +$972 ﹤0.01% 1255

Other funds holding RGEN

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.27T AUM 50.62% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $296B AUM 23.14% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return
William Blair Investment Management
William Blair Investment Management Chicago, Illinois $30.8B AUM 33.92% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Congress Asset Management
Congress Asset Management Boston, Massachusetts $15.4B AUM 30.39% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $765B AUM 28.39% 1-Year Est. Return
Stephens Investment Management Group
Stephens Investment Management Group Houston, Texas $9.29B AUM 41.16% 1-Year Est. Return

Rossby Financial's RGEN Position: Q3 2026 in Review

Rossby Financial reduced its Repligen (RGEN) stake by 35% in Q3 2026, selling an estimated $5.86K and leaving 67 shares worth $12.9K. The position accounts for ﹤0.01% of the portfolio, ranked #1419.

Rossby Financial first reported a position in RGEN in Q3 2025 and has held it in 5 quarters since. The position peaked at $14.1K in Q2 2026. 324 funds tracked by Wall St. Rank hold RGEN as of Q3 2026.

  • Rossby Financial held 67 shares of Repligen worth $12.9K as of Q3 2026.
  • Rossby Financial sold 36 Repligen shares in Q3 2026, an estimated $5.86K.
  • Repligen made up ﹤0.01% of Rossby Financial's portfolio in Q3 2026, its #1419 holding.
  • Rossby Financial first reported a position in Repligen in Q3 2025 and has held it in 5 quarters since.
  • Rossby Financial's Repligen position peaked at $14.1K in Q2 2026.
  • 324 funds tracked by Wall St. Rank held Repligen as of Q3 2026.

Based on Rossby Financial's 13F filing for Q3 2026, filed 5 Nov 2026.