Hudson Bay Capital Management
RPID icon

Hudson Bay Capital Management’s Rapid Micro Biosystems RPID Stock Holding History

Hudson Bay Capital 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
Q1 		$28.4K Buy
+12,524
New +$45.8K ﹤0.01% 1311
2025
Q4 		– Sell
-11,461
Closed -$38.3K – 1479
2025
Q3 		$38.3K Buy
+11,461
New +$36.3K ﹤0.01% 1150

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

Hudson Bay Capital Management's RPID Position: Q1 2026 in Review

Hudson Bay Capital Management opened a new position in Rapid Micro Biosystems (RPID) in Q1 2026: 12,524 shares worth $28.4K. The stake represents ﹤0.01% of the portfolio and ranks #1311 among its holdings. This is a return to the name: Hudson Bay Capital Management previously reported a position in RPID as recently as Q3 2025.

Hudson Bay Capital Management first reported a position in RPID in Q3 2025 and has held it in 2 quarters since. The position peaked at $38.3K in Q3 2025. 46 funds tracked by Wall St. Rank hold RPID as of Q1 2026.

  • Hudson Bay Capital Management held 12,524 shares of Rapid Micro Biosystems worth $28.4K as of Q1 2026.
  • Rapid Micro Biosystems was a new Hudson Bay Capital Management position in Q1 2026.
  • Rapid Micro Biosystems made up ﹤0.01% of Hudson Bay Capital Management's portfolio in Q1 2026, its #1311 holding.
  • Hudson Bay Capital Management first reported a position in Rapid Micro Biosystems in Q3 2025 and has held it in 2 quarters since.
  • Hudson Bay Capital Management's Rapid Micro Biosystems position peaked at $38.3K in Q3 2025.
  • 46 funds tracked by Wall St. Rank held Rapid Micro Biosystems as of Q1 2026.

Based on Hudson Bay Capital Management's 13F filing for Q1 2026, filed 13 May 2026.