Citadel Advisors
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Citadel Advisors’s Rapid Micro Biosystems RPID Stock Holding History

Citadel Advisors’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 		– Sell
-126,539
Closed -$367K – 14055
2025
Q4 		$367K Buy
+126,539
New +$439K ﹤0.01% 9721
2025
Q3 		– Sell
-20,762
Closed -$71.6K – 13900
2025
Q2 		$71.6K Buy
+20,762
New +$60.3K ﹤0.01% 11569
2025
Q1 		– Sell
-72,024
Closed -$64.8K – 15420
2024
Q4 		$64.8K Buy
+72,024
New +$72.5K ﹤0.01% 12073
2024
Q1 		– Sell
-24,135
Closed -$17.9K – 15337
2023
Q4 		$17.9K Buy
24,135
+7,494
+45% +$7.67K ﹤0.01% 12720
2023
Q3 		$18K Sell
16,641
-33,095
-67% -$32.9K ﹤0.01% 12701
2023
Q2 		$49.7K Buy
+49,736
New +$50.3K ﹤0.01% 11808
2023
Q1 		– Sell
-20,683
Closed -$23.4K – 15401
2022
Q4 		$23.4K Buy
+20,683
New +$50.1K ﹤0.01% 13017
2022
Q3 		– Sell
-29,713
Closed -$128K – 13471
2022
Q2 		$128K Buy
+29,713
New +$138K ﹤0.01% 11152
2021
Q4 		– Sell
-22,705
Closed -$419K – 14614
2021
Q3 		$419K Buy
+22,705
New +$469K ﹤0.01% 10305

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

Citadel Advisors's RPID Position: Q1 2026 in Review

Citadel Advisors sold out of Rapid Micro Biosystems (RPID) in Q1 2026, closing a stake of 126,539 shares — an estimated $367K sold.

Citadel Advisors first reported a position in RPID in Q3 2021 and held it in 9 quarters. The position peaked at $419K in Q3 2021. 46 funds tracked by Wall St. Rank hold RPID as of Q1 2026.

  • Citadel Advisors reported no remaining Rapid Micro Biosystems position as of Q1 2026 after selling out during the quarter.
  • Citadel Advisors sold 126,539 Rapid Micro Biosystems shares in Q1 2026, an estimated $367K.
  • Citadel Advisors first reported a position in Rapid Micro Biosystems in Q3 2021 and held it in 9 quarters.
  • Citadel Advisors's Rapid Micro Biosystems position peaked at $419K in Q3 2021.
  • 46 funds tracked by Wall St. Rank held Rapid Micro Biosystems as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.