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Rapid Micro Biosystems Ownership | Who Owns Rapid Micro Biosystems?

OverviewForecastRevenueFinancialsChartTranscripts

Rapid Micro Biosystems Ownership Summary

Rapid Micro Biosystems is owned by 33.92% institutional investors, 10.73% insiders, and 55.35% retail investors. Bain capital life sciences investors is the largest institutional shareholder, holding 18.89% of RPID shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 1.45% of its assets in Rapid Micro Biosystems shares.

RPID Ownership Benchmark

TypeName% Inst% Insiders% Retail
StockRapid Micro Biosystems33.92%10.73%55.35%
SectorHealthcare Stocks 488.17%11.08%-399.26%
IndustryMedical Device Stocks52.08%10.61%37.30%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Bain capital life sciences investors8.43M18.89%$29.10M
Kennedy lewis management lp4.94M11.42%$3.26M
Abg-wtt global life science capital partners gp1.04M2.38%$934.47K
Parkman healthcare partners913.44K2.05%$3.15M
Vanguard group721.13K1.65%$649.02K
Blackrock648.52K1.50%$428.02K
Advent corp/ma577.78K1.29%$1.99M
Blackrock funding, inc. /de476.82K1.07%$1.65M
Renaissance183.09K0.42%$164.78K
Geode capital management153.11K0.35%$137.86K

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Kennedy lewis management lp4.94M14.06%$3.26M
Bain capital life sciences investors8.43M3.64%$29.10M
Abg-wtt global life science capital partners gp1.04M2.14%$934.47K
Parkman healthcare partners913.44K0.36%$3.15M
Advent corp/ma577.78K0.06%$1.99M
Evernest financial advisors44.00K0.05%$151.80K
Xtx topco41.80K0.01%$144.21K
Legato capital management14.68K0.01%$50.66K
Renaissance183.09K0.00%$164.78K
Mariner20.23K0.00%$69.78K

Top Buyers

HolderShares% AssetsChange
Parkman healthcare partners913.44K0.36%177.82K
Renaissance183.09K0.00%100.94K
Xtx topco41.80K0.01%41.80K
American century companies16.92K-5.34K
Geode capital management153.11K-2.45K

Top Sellers

HolderShares% AssetsChange
Glenview capital management---547.99K
Blackrock648.52K--371.21K
Jpmorgan chase157.00--321.17K
Blackrock funding, inc. /de476.82K--165.28K
Omers administration---109.40K

Sold Out

HolderChange
Qube research-4.00
Wells fargo & company/mn-157.00
Tower research capital llc (trc)-350.00
Advisor group-600.00
Two sigma securities-10.97K

Institutional Ownership Trends

DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Jun 30, 202528-15,145,310-1.11%332.80%14-36.36%775.00%
Mar 31, 20251-94.44%577,777-95.16%10.18%--100.00%--100.00%
Dec 31, 202418-11,949,084-31.95%271.69%860.00%3-50.00%
Sep 30, 202418-5.26%17,558,874-5.13%402.20%5-6-
Jun 30, 202419-9.52%18,509,099-2.85%422.18%5-16.67%6-14.29%

Top Mutual Funds Shareholders

HolderShares% HoldingChange
Vanguard Total Stock Mkt Idx Inv640.27K1.45%-14.13K
BlackRock Health Sciences Term Trust571.18K1.30%-
IMC US Ultra Micro Cap181.64K0.41%-
Vanguard Institutional Extnd Mkt Idx Tr170.18K0.39%-52.90K
Fidelity Extended Market Index94.68K0.22%-247.00
Pleiades Small Cap Equity A90.82K0.21%-6.84K
iShares Micro-Cap ETF67.13K0.15%-
Extended Equity Market Fund K58.52K0.13%-1.17K
Northern Trust Extended Eq Market Idx28.99K0.07%-
NT Ext Equity Mkt Idx Fd - L28.99K0.07%-

Recent Insider Transactions

DateNameRoleActivityValue
Jul 14, 2025Spignesi Robert G. Jr. PRESIDENT AND CEOSell$39.48K
Jul 11, 2025Spignesi Robert G. Jr. PRESIDENT AND CEOSell$39.50K
Jul 10, 2025Spignesi Robert G. Jr. PRESIDENT AND CEOSell$39.47K
Jul 09, 2025Spignesi Robert G. Jr. PRESIDENT AND CEOSell$39.48K
Jul 08, 2025Spignesi Robert G. Jr. PRESIDENT AND CEOSell$38.02K

Insider Transactions Trends

DateBuySell
2025 Q3-5
2025 Q2--
2025 Q1--
2024 Q44-
2024 Q34-

RPID Ownership FAQ

Who Owns Rapid Micro Biosystems?

Rapid Micro Biosystems shareholders are primarily institutional investors at 33.92%, followed by 10.73% insiders and 55.35% retail investors. The average institutional ownership in Rapid Micro Biosystems's industry, Medical Device Stocks, is 52.08%, which Rapid Micro Biosystems falls below.

Who owns the most shares of Rapid Micro Biosystems?

Rapid Micro Biosystems’s largest shareholders are Bain capital life sciences investors (8.43M shares, 18.89%), Kennedy lewis management lp (4.94M shares, 11.42%), and Abg-wtt global life science capital partners gp (1.04M shares, 2.38%). Together, they hold 32.69% of Rapid Micro Biosystems’s total shares outstanding.

Does Blackrock own Rapid Micro Biosystems?

Yes, BlackRock owns 1.50% of Rapid Micro Biosystems, totaling 648.52K shares as of Jun 2024. This represents 0% of BlackRock's total assets, with a market value of 428.02K$. In the last quarter, BlackRock decreased its holdings by -371K shares, a -36.40% change.

Who is Rapid Micro Biosystems’s biggest shareholder by percentage of total assets invested?

Kennedy lewis management lp is Rapid Micro Biosystems’s biggest shareholder by percentage of total assets invested, with 14.06% of its assets in 4.94M Rapid Micro Biosystems shares, valued at 3.26M$.

Who is the top mutual fund holder of Rapid Micro Biosystems shares?

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of Rapid Micro Biosystems shares, with 1.45% of its total shares outstanding invested in 640.27K Rapid Micro Biosystems shares.

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