RAPID MICRO BIOSYSTEMS INC

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RPID·75340L104·US·Common Stock·Healthcare - Medical Devices-Activist

CLASS A COM

RPID (RAPID MICRO BIOSYSTEMS INC) is held by 21 institutional investors as of Q2 2026. Largest holders: VANGUARD CAPITAL MANAGEMENT LLC ($1.7M), MILLENNIUM MANAGEMENT LLC ($409,316), GEODE CAPITAL MANAGEMENT, LLC ($394,706). Net institutional sentiment: Bearish.

21

Holders

$4.3M

Total Value

28% (29)

Consensus

8 buying - 21 selling

13F: Jun 30, 2026Insider & Congress: Updated regularly

Smart Money Verdict

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Institutional (13F)66

Insider (Form 4)81

Activist (13D/13G)31

Congressional (STOCK Act)43

Holder Quality

16

★★★★★

Elite

62

★★★★

Strong

24

★★★

Solid

62

★★

Below

63

★

Weak

Held by 21 funds

Who's Trading

Source dates: Price Sep 22, 2026 · Insiders Mar 12, 2026 · Activists Aug 14, 2026 · Congress none

ActivistARArmistice Capital, LLC7.3%Aug 14, 2026

ActivistBLBain Capital Life Sciences Fund, L.P.16.8%Aug 14, 2026

ActivistLILongitude Capital Partners II, LLC8.6%May 15, 2026

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Top Holders

Top Holders (21)History

AllNewIncreasedHeldDecreasedExited

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Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
VAVANGUARD CAPITAL MANAGEMENT LLC	Decreased	982,034(-0.1%)	$1.7M	0.0%	-72.88%	0
MILLENNIUM MANAGEMENT LLC	Decreased	236,599(-16.5%)	$409,316	0.0%	-68.30%	0
GEODE CAPITAL MANAGEMENT, LLC	Decreased	228,041(-7.7%)	$394,706	0.0%	-79.41%	0
RENAISSANCE TECHNOLOGIES LLC	Increased	212,101(+67.5%)	$366,935	0.0%	-20.93%	35
BlackRock, Inc.	Increased	189,832(+20.7%)	$328,410	0.0%	-7.06%	19
VFVANGUARD FIDUCIARY TRUST CO	Increased	110,484(+0.7%)	$191,137	0.0%	-72.76%	16
DIMENSIONAL FUND ADVISORS LP	Increased	104,192(+19.0%)	$180,253	0.0%	-64.68%	18
STATE STREET CORP	Unchanged	93,874	$162,402	0.0%	-51.88%	0
XTX Topco Ltd	Increased	79,727(+30.6%)	$137,928	0.0%	-68.52%	28
SEI INVESTMENTS CO	Decreased	66,869(-76.5%)	$115,683	0.0%	-69.34%	0
NORTHERN TRUST CORP	Decreased	42,106(-12.8%)	$72,843	0.0%	-80.14%	0
MORGAN STANLEY	Decreased	27,587(-5.5%)	$47,726	0.0%	-55.87%	0
JANE STREET GROUP, LLC	Decreased	25,931(-80.5%)	$44,861	0.0%	-64.26%	0
CITADEL ADVISORS LLC	New	16,142	$27,926	0.0%	-33.53%	30
OSAIC HOLDINGS, INC.	Increased	14,300(+2.1%)	$24,739	0.0%	-57.83%	13
AMERICAN CENTURY COMPANIES INC	Decreased	11,638(-31.2%)	$20,134	0.0%	-61.20%	0
VGVanguard Global Advisers, LLC	Unchanged	11,630	$20,120	0.0%	-72.88%	0
UBS Group AG	Decreased	6,607(-41.3%)	$11,430	0.0%	-72.86%	0
BARCLAYS PLC	Decreased	337(-98.4%)	$583	0.0%	-58.18%	0
JPMORGAN CHASE & CO	Unchanged	109	$189	0.0%	-45.24%	0

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RPIDRAPID MICRO BIOSYSTEMS INC

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High Conviction Moves-Smart Money Convergence-Fund Consensus-Double-Down Detection

Data sourced from four public-disclosure sources: SEC 13F, Form 4, 13D/13G, and House/Senate STOCK Act disclosures. Not financial advice. Full disclaimer