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XTX Topco’s Repligen RGEN Stock Holding History

XTX Topco’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 		$3.13M Buy
26,527
+21,379
+415% +$2.99M 0.05% 536
2025
Q4 		$844K Buy
+5,148
New +$806K 0.02% 1152
2025
Q3 		– Sell
-17,352
Closed -$2.16M – 3152
2025
Q2 		$2.16M Buy
17,352
+4,417
+34% +$562K 0.09% 299
2025
Q1 		$1.65M Buy
12,935
+3,295
+34% +$507K 0.08% 324
2024
Q4 		$1.39M Buy
+9,640
New +$1.38M 0.11% 164
2023
Q4 		– Sell
-5,515
Closed -$877K – 2039
2023
Q3 		$877K Buy
5,515
+1,139
+26% +$186K 0.15% 138
2023
Q2 		$619K Sell
4,376
-289
-6% -$46.3K 0.11% 252
2023
Q1 		$785K Buy
+4,665
New +$832K 0.16% 101
2022
Q4 		– Sell
-2,859
Closed -$535K – 1449
2022
Q3 		$535K Buy
+2,859
New +$603K 0.13% 215

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

XTX Topco's RGEN Position: Q1 2026 in Review

XTX Topco increased its Repligen (RGEN) stake by 415% in Q1 2026, buying an estimated $2.99M and bringing the position to 26,527 shares worth $3.13M. The position accounts for 0.05% of the portfolio, ranked #536.

XTX Topco first reported a position in RGEN in Q3 2022 and has held it in 9 quarters since. 441 funds tracked by Wall St. Rank hold RGEN as of Q1 2026.

  • XTX Topco held 26,527 shares of Repligen worth $3.13M as of Q1 2026.
  • XTX Topco bought 21,379 Repligen shares in Q1 2026, an estimated $2.99M.
  • Repligen made up 0.05% of XTX Topco's portfolio in Q1 2026, its #536 holding.
  • XTX Topco first reported a position in Repligen in Q3 2022 and has held it in 9 quarters since.
  • 441 funds tracked by Wall St. Rank held Repligen as of Q1 2026.

Based on XTX Topco's 13F filing for Q1 2026, filed 15 May 2026.