Jane Street
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Jane Street’s Rapid Micro Biosystems RPID Stock Holding History

Jane Street’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 		$44.9K Sell
25,931
-106,994
-80% -$225K ﹤0.01% 10978
2026
Q1 		$302K Buy
132,925
+27,624
+26% +$101K ﹤0.01% 9227
2025
Q4 		$305K Buy
105,301
+67,161
+176% +$233K ﹤0.01% 8807
2025
Q3 		$127K Buy
+38,140
New +$121K ﹤0.01% 10003

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

Jane Street's RPID Position: Q2 2026 in Review

Jane Street reduced its Rapid Micro Biosystems (RPID) stake by 80% in Q2 2026, selling an estimated $225K and leaving 25,931 shares worth $44.9K. The position accounts for ﹤0.01% of the portfolio, ranked #10978.

Jane Street first reported a position in RPID in Q3 2025 and has held it in 4 quarters since. The position peaked at $305K in Q4 2025. 34 funds tracked by Wall St. Rank hold RPID as of Q2 2026.

  • Jane Street held 25,931 shares of Rapid Micro Biosystems worth $44.9K as of Q2 2026.
  • Jane Street sold 106,994 Rapid Micro Biosystems shares in Q2 2026, an estimated $225K.
  • Rapid Micro Biosystems made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #10978 holding.
  • Jane Street first reported a position in Rapid Micro Biosystems in Q3 2025 and has held it in 4 quarters since.
  • Jane Street's Rapid Micro Biosystems position peaked at $305K in Q4 2025.
  • 34 funds tracked by Wall St. Rank held Rapid Micro Biosystems as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.