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
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 $1.11B AUM 171.34% 1-Year Est. Return
AWGLSCP
ABG-WTT Global Life Science Capital Partners Central, Hong Kong, Hong Kong $12.3M AUM 3.13% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
EIM
Essex Investment Management Boston, Massachusetts $632M AUM 95.36% 1-Year Est. Return
AI
Advent International Boston, Massachusetts $4.24B AUM 4.24% 1-Year Est. Return
EFA
Evernest Financial Advisors Carmel, Indiana $481M AUM 19.97% 1-Year Est. Return
SEI Investments
SEI Investments Oaks, Pennsylvania $108B AUM 26.14% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
LCM
Legato Capital Management San Francisco, California $1.1B AUM 61.65% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

XTX Topco's RPID Position: Q1 2026 in Review

XTX Topco opened a new position in Rapid Micro Biosystems (RPID) in Q1 2026: 61,070 shares worth $139K. The stake represents ﹤0.01% of the portfolio and ranks #2991 among its holdings. This is a return to the name: XTX Topco previously reported a position in RPID as recently as Q3 2025.

XTX Topco first reported a position in RPID in Q4 2023 and has held it in 6 quarters since. The position peaked at $144K in Q2 2025. 46 funds tracked by Wall St. Rank hold RPID as of Q1 2026.

  • XTX Topco held 61,070 shares of Rapid Micro Biosystems worth $139K as of Q1 2026.
  • Rapid Micro Biosystems was a new XTX Topco position in Q1 2026.
  • Rapid Micro Biosystems made up ﹤0.01% of XTX Topco's portfolio in Q1 2026, its #2991 holding.
  • XTX Topco first reported a position in Rapid Micro Biosystems in Q4 2023 and has held it in 6 quarters since.
  • XTX Topco's Rapid Micro Biosystems position peaked at $144K in Q2 2025.
  • 46 funds tracked by Wall St. Rank held Rapid Micro Biosystems as of Q1 2026.

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