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Essex Investment Management’s Rapid Micro Biosystems RPID Stock Holding History

Essex Investment Management’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 		$627K Sell
362,696
-521,235
-59% -$1.1M 0.08% 167
2026
Q1 		$2.01M Buy
883,931
+821,605
+1,318% +$3.01M 0.32% 111
2025
Q4 		$181K Hold
62,326
– – 0.03% 211
2025
Q3 		$208K Hold
62,326
– – 0.03% 203
2025
Q2 		$215K Sell
62,326
-731
-1% -$2.12K 0.04% 194
2025
Q1 		$166K Buy
+63,057
New +$144K 0.03% 194

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
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
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Essex Investment Management's RPID Position: Q2 2026 in Review

Essex Investment Management reduced its Rapid Micro Biosystems (RPID) stake by 59% in Q2 2026, selling an estimated $1.1M and leaving 362,696 shares worth $627K. The position accounts for 0.08% of the portfolio, ranked #167.

Essex Investment Management first reported a position in RPID in Q1 2025 and has held it in 6 quarters since. The position peaked at $2.01M in Q1 2026. 34 funds tracked by Wall St. Rank hold RPID as of Q2 2026.

  • Essex Investment Management held 362,696 shares of Rapid Micro Biosystems worth $627K as of Q2 2026.
  • Essex Investment Management sold 521,235 Rapid Micro Biosystems shares in Q2 2026, an estimated $1.1M.
  • Rapid Micro Biosystems made up 0.08% of Essex Investment Management's portfolio in Q2 2026, its #167 holding.
  • Essex Investment Management first reported a position in Rapid Micro Biosystems in Q1 2025 and has held it in 6 quarters since.
  • Essex Investment Management's Rapid Micro Biosystems position peaked at $2.01M in Q1 2026.
  • 34 funds tracked by Wall St. Rank held Rapid Micro Biosystems as of Q2 2026.

Based on Essex Investment Management's 13F filing for Q2 2026, filed 6 Aug 2026.