Rapid Micro Biosystems (RPID)

NASDAQ:RPID

US Market

RPID

Rapid Micro Biosystems

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Rapid Micro Biosystems (RPID) Ownership - Who Owns Rapid Micro Biosystems?

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Rapid Micro Biosystems (RPID) Ownership Overview

15.41% Insiders

2.55% Mutual Funds

1.08% Other Institutional Investors

2.62% ETFs

78.34% Public Companies and

Individual Investors

The ownership structure of Rapid Micro Biosystems (RPID) stock is a mix of institutional, retail, and individual investors. Approximately 6.26% of the company’s stock is owned by Institutional Investors, 15.41% is owned by Insiders, and 78.34% is owned by Public Companies and Individual Investors.

The ownership structure of Rapid Micro Biosystems (RPID) stock is a mix of institutional, retail, and individual investors. Approximately 3.63% of the company’s stock is owned by Institutional Investors, 15.41% is owned by Insiders, and 2.62% is owned by Public Companies and Individual Investors.

Recent Insider Trading Activity

Date	Name	Activity	Value
Mar 12, 2026	Sean M Wirtjes	xxxxxxxxxxxxx	$32239
Mar 12, 2026	John J. Addington Wilson	xxxxxxxxxxxxx	$41389
Mar 12, 2026	Robert G. Jr. Spignesi	xxxxxxxxxxxxx	$73659
Feb 20, 2026	Sean M Wirtjes	xxxxxxxxxxxxx	$67636

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Recent Hedge Fund Trading Activity

Date	Firm	Activity	Value

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Top Shareholders

Holder	# of Shares	Type	% Holding	Value
	4,029,245	Insider	9.76%	10,032,820
	1,169,848	Insider	2.83%	2,912,922
	954,516	Institution	2.31%	2,376,745
	829,461	Institution	2.01%	2,065,358
David Mussafer	577,777	Institution	1.40%	1,438,665
	556,194	Insider	1.35%	1,384,923
	316,762	Insider	0.77%	788,737
	180,507	Institution	0.44%	449,462
	111,018	Insider	0.27%	276,435
	79,564	Institution	0.19%	198,114

Top Mutual Fund Holders

Holder	# of Shares	Type	% Holding	Value
	829,461	Institution	2.01%	2,065,358
	180,507	Institution	0.44%	449,462
	14,085	Institution	0.03%	35,072
	13,893	Institution	0.03%	34,594
	12,352	Institution	0.03%	30,756
	2,294	Institution	<0.01%	5,712

Top ETF Holders

Holder	# of Shares	Type	% Holding	Value
Vanguard Total Stock Market ETF	750,984	Institution	1.82%	1,704,734
Vanguard Extended Market ETF	203,532	Institution	0.49%	462,018
iShares Micro-Cap ETF	79,044	Institution	0.19%	196,820
Dimensional U.S. Small Cap ETF	30,705	Institution	0.07%	77,684
Avantis U.S Small Cap Equity ETF	11,638	Institution	0.03%	28,979
U.S. Micro Cap Portfolio ETF	8,451	Institution	0.02%	24,508
Dimensional U.S. Core Equity 2 ETF	5,089	Institution	0.01%	12,875

FAQ

Who Owns Rapid Micro Biosystems (RPID)?

According to the latest TipRanks data, approximately 1.08% of the company's stock is held by institutional investors, 15.41% is held by insiders, and 78.34% is held by retail investors.

What percentage of Rapid Micro Biosystems (RPID) stock is held by institutional investors?

According to the latest TipRanks data, approximately 1.08% of Rapid Micro Biosystems (RPID) stock is held by institutional investors.

What percentage of Rapid Micro Biosystems (RPID) stock is held by retail investors?

According to the latest TipRanks data, approximately 78.34% of Rapid Micro Biosystems (RPID) stock is held by retail investors.

Who owns the most shares of Rapid Micro Biosystems (RPID)?

Longitude Capital Partners II, LLC owns the most shares of Rapid Micro Biosystems (RPID).

What is the significance of the ownership structure for a publicly traded company?

The ownership structure can impact the company's decision making, as large institutional investors may exert influence on the company's management and can also affect the company's stock price with their buying and selling patterns.