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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
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

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
UCFA
United Capital Financial Advisors Irving, Texas $16.3B AUM 16.34% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $544B AUM 28.31% 1-Year Est. Return
MC
Maverick Capital Dallas, Texas $8.67B AUM 48.76% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $298B AUM 21.96% 1-Year Est. Return

Rossby Financial's RGEN Position: Q1 2026 in Review

Rossby Financial increased its Repligen (RGEN) stake by 590% in Q1 2026, buying an estimated $8.24K and bringing the position to 69 shares worth $8.16K. The position accounts for ﹤0.01% of the portfolio, ranked #1334.

Rossby Financial first reported a position in RGEN in Q3 2025 and has held it in 3 quarters since. 441 funds tracked by Wall St. Rank hold RGEN as of Q1 2026.

  • Rossby Financial held 69 shares of Repligen worth $8.16K as of Q1 2026.
  • Rossby Financial bought 59 Repligen shares in Q1 2026, an estimated $8.24K.
  • Repligen made up ﹤0.01% of Rossby Financial's portfolio in Q1 2026, its #1334 holding.
  • Rossby Financial first reported a position in Repligen in Q3 2025 and has held it in 3 quarters since.
  • 441 funds tracked by Wall St. Rank held Repligen as of Q1 2026.

Based on Rossby Financial's 13F filing for Q1 2026, filed 11 May 2026.