XT
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XTX Topco’s Rapid Micro Biosystems RPID Stock Holding History

XTX Topco’s Portfolio RPID Stock Details RPID Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$138K Buy
79,727
+18,657
+31% +$39.3K ﹤0.01% 3419
2026
Q1 		$139K Buy
+61,070
New +$224K ﹤0.01% 2991
2025
Q4 		– Sell
-22,165
Closed -$74K – 3721
2025
Q3 		$74K Sell
22,165
-19,635
-47% -$62.1K ﹤0.01% 2084
2025
Q2 		$144K Buy
+41,800
New +$121K 0.01% 1797
2025
Q1 		– Sell
-18,201
Closed -$16.4K – 2998
2024
Q4 		$16.4K Buy
18,201
+3,656
+25% +$3.68K ﹤0.01% 2076
2024
Q3 		$12.9K Buy
+14,545
New +$11.3K ﹤0.01% 1895
2024
Q1 		– Sell
-10,463
Closed -$7.74K – 2251
2023
Q4 		$7.74K Buy
+10,463
New +$10.7K ﹤0.01% 1450

Other funds holding RPID

BCLSI
Bain Capital Life Sciences Investors Boston, Massachusetts $1.68B AUM 126.09% 1-Year Est. Return
AC
Armistice Capital New York $8.17B AUM 68.82% 1-Year Est. Return
AWGLSCP
ABG-WTT Global Life Science Capital Partners Central, Hong Kong, Hong Kong $8.55M AUM 12.76% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
EFA
Evernest Financial Advisors Carmel, Indiana $478M AUM 24% 1-Year Est. Return
AI
Advent International Boston, Massachusetts $17.7B AUM 5.23% 1-Year Est. Return
EIM
Essex Investment Management Boston, Massachusetts $763M AUM 108.51% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return

XTX Topco's RPID Position: Q2 2026 in Review

XTX Topco increased its Rapid Micro Biosystems (RPID) stake by 31% in Q2 2026, buying an estimated $39.3K and bringing the position to 79,727 shares worth $138K. The position accounts for ﹤0.01% of the portfolio, ranked #3419.

XTX Topco first reported a position in RPID in Q4 2023 and has held it in 7 quarters since. The position peaked at $144K in Q2 2025. 34 funds tracked by Wall St. Rank hold RPID as of Q2 2026.

  • XTX Topco held 79,727 shares of Rapid Micro Biosystems worth $138K as of Q2 2026.
  • XTX Topco bought 18,657 Rapid Micro Biosystems shares in Q2 2026, an estimated $39.3K.
  • Rapid Micro Biosystems made up ﹤0.01% of XTX Topco's portfolio in Q2 2026, its #3419 holding.
  • XTX Topco first reported a position in Rapid Micro Biosystems in Q4 2023 and has held it in 7 quarters since.
  • XTX Topco's Rapid Micro Biosystems position peaked at $144K in Q2 2025.
  • 34 funds tracked by Wall St. Rank held Rapid Micro Biosystems as of Q2 2026.

Based on XTX Topco's 13F filing for Q2 2026, filed 14 Aug 2026.