WallStreetZenWallStreetZen

NASDAQ: RPID
Rapid Micro Biosystems Inc Stock Ownership - Who owns Rapid Micro Biosystems?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Rapid Micro Biosystems Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Melinda Litherland PeiDirector2026-05-2912,787$1.96
$25.00kBuy
Sean M. WirtjesCHIEF FINANCIAL OFFICER2026-05-2912,787$1.96
$25.00kBuy
Inese LowensteinDirector2026-05-2912,787$1.96
$25.00kBuy
Kirk MalloyDirector2026-05-2912,787$1.96
$25.00kBuy
Robert G. Spignesi Jr.PRESIDENT AND CEO2026-05-2912,787$1.96
$25.00kBuy
Sean M. WirtjesCHIEF FINANCIAL OFFICER2026-03-117,480$4.32
$32.30kSell
John J. Addington WilsonCHIEF OPERATING OFFICER2026-03-119,603$4.32
$41.47kSell
Robert G. Spignesi Jr.PRESIDENT AND CEO2026-03-1017,922$4.11
$73.70kSell
Natale S. RicciardiDirector2026-02-27842$0.75
$631.50Buy
Sean M. WirtjesCHIEF FINANCIAL OFFICER2026-02-2017,254$3.92
$67.69kSell

1 of 3

RPID insiders have bought more... subscribe to Premium to read more.
Net Insider Buy/Sell (L12M) Ownership

Be the first to know when RPID insiders and whales buy or sell their stock.

RPID Shareholders

What type of owners hold Rapid Micro Biosystems Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Jeffrey Lawrence Schwartz18.30%8,448,860$14.36MInsider
Bain Capital Life Sciences Investors LLC18.27%8,434,560$14.34MInstitution
Bain Capital Life Sciences Investors LLC18.27%8,434,560$14.34MInsider
Longitude Capital Partners II LLC8.87%4,093,159$6.96MInsider
David Hirsch7.41%3,422,252$5.82MInsider
Kennedy Lewis Management LP6.29%2,904,490$4.94MInsider
Abgwtt Global Life Science Capital Partners GP Ltd4.00%1,848,296$3.14MInstitution
Richard S. Kollender3.49%1,611,327$2.74MInsider
Robert G. Spignesi Jr.2.58%1,190,571$2.02MInsider
Vanguard Capital Management LLC2.13%982,494$1.67MInstitution

1 of 3

RPID vs Medical Device Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
RPID33.10%66.90%Net BuyingNet Buying
NNOX25.73%0.58%Net BuyingNet Selling
SNWV48.38%24.98%Net SellingNet Selling
STEX22.63%20.81%Net BuyingNet Selling
OM58.61%41.39%Net BuyingNet Buying
View Top Medical Device Stocks

Rapid Micro Biosystems Stock Ownership FAQ

Who owns Rapid Micro Biosystems?

Rapid Micro Biosystems (NASDAQ: RPID) is owned by 34.31% institutional shareholders, 69.34% Rapid Micro Biosystems insiders, and 0.00% retail investors. Jeffrey Lawrence Schwartz is the largest individual Rapid Micro Biosystems shareholder, owning 8.45M shares representing 18.30% of the company. Jeffrey Lawrence Schwartz's Rapid Micro Biosystems shares are currently valued at $14.36M.

If you're new to stock investing, here's how to buy Rapid Micro Biosystems stock.
©2026 WallStreetZen
Company
AboutNewsBlogStock Investing FAQPlansPrivacy PolicyTerms of ServiceCancellation & RefundsPerformanceHelp GuidesContactTwitterYouTubeNewsletter
Stock Tools
Top Performing AnalystsStock ScreenerStock ForecastTrending StocksStrong Buy StocksHighest Earnings StocksBest Dividend Paying StocksStatisticsStock Market SectorsStock Market IndustriesHow to Buy Stocks Online
Stock Ideas
Buy The DipBiggest Stock Gainers TodayBiggest Stock Losers Today52 Week High Stocks52 Week Low StocksMost Active Stocks TodayMost Undervalued StocksBest Penny Stocks to Buy NowBest Stocks Under $5Best Stocks Under $10
WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.

Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.