Citigroup
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Citigroup’s Repligen RGEN Stock Holding History

Citigroup’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
2024
Q1 		– Sell
-23,000
Closed -$4.14M – 5819
2023
Q4 		$4.14M Buy
+23,000
New +$3.58M ﹤0.01% 1717

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

Citigroup's RGEN Position: Q1 2026 in Review

Citigroup reduced its Repligen (RGEN) stake by 57% in Q1 2026, selling an estimated $6.62M and leaving 36,356 shares worth $4.28M. The position accounts for ﹤0.01% of the portfolio, ranked #2086.

Citigroup first reported a position in RGEN in Q2 2013 and has held it in 52 quarters since. The position peaked at $13.9M in Q3 2024. 441 funds tracked by Wall St. Rank hold RGEN as of Q1 2026.

  • Citigroup held 36,356 shares of Repligen worth $4.28M as of Q1 2026.
  • Citigroup sold 47,396 Repligen shares in Q1 2026, an estimated $6.62M.
  • Repligen made up ﹤0.01% of Citigroup's portfolio in Q1 2026, its #2086 holding.
  • Citigroup first reported a position in Repligen in Q2 2013 and has held it in 52 quarters since.
  • Citigroup's Repligen position peaked at $13.9M in Q3 2024.
  • 441 funds tracked by Wall St. Rank held Repligen as of Q1 2026.

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