Stock Ownership/RPID

RAPID MICRO BIOSYSTEMS INC (RPID): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in RPID · Communication Services. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
3
13F filers
Aggregate Value
$804K
Across holders
Last Price
$1.66
2026-08-24
Sector
Communication Services
GICS
Quarterly fund activity2 increased1 reduced3 exited
Full exits: Hudson Bay Capital Management LP, MARSHALL WACE, LLP, Qube Research & Technologies Ltd
Institutional Holders of RPID
↗
3 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund237K$409K50.9%0.0%Reduced$-81KQ2 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
Hedge Fund212K$367K45.6%0.0%Added+$148KQ2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund16K$28K3.5%0.0%Added—Q2 2026
MILLENNIUM MANAGEMENT LLCReduced
Hedge Fund
$409K· 50.9% of total· 0.0% port· 237K sh· $-81K QoQ· Q2 2026
RENAISSANCE TECHNOLOGIES LLCAdded
Hedge Fund
$367K· 45.6% of total· 0.0% port· 212K sh· +$148K QoQ· Q2 2026
CITADEL ADVISORS LLCAdded
Hedge Fund
$28K· 3.5% of total· 0.0% port· 16K sh· — QoQ· Q2 2026
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