Rapid Micro Biosystems Ownership | Who Owns Rapid Micro Biosystems?
Rapid Micro Biosystems Ownership Summary
Rapid Micro Biosystems is owned by 5.32% institutional investors, 10.52% insiders, and 84.16% 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 1.69% of its assets in Rapid Micro Biosystems shares.
RPID Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Rapid Micro Biosystems | 5.32% | 10.52% | 84.16% |
| Sector | Healthcare Stocks | 232.01% | 10.74% | -142.75% |
| Industry | Medical Device Stocks | 37.54% | 10.61% | 51.85% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Bain capital life sciences investors | 8.43M | 18.89% | $28.17M |
| Kennedy lewis management lp | 4.94M | 11.42% | $3.26M |
| Abg-wtt global life science capital partners gp | 1.85M | 4.14% | $6.17M |
| Vanguard group | 978.78K | 2.20% | $2.84M |
| Parkman healthcare partners | 913.44K | 2.05% | $3.05M |
| Blackrock | 648.52K | 1.50% | $428.02K |
| Schonfeld strategic advisors | 646.58K | 1.45% | $2.16M |
| Advent corp/ma | 577.78K | 1.29% | $1.93M |
| Geode capital management | 217.57K | 0.49% | $631.12K |
| Evernest financial advisors | 200.23K | 0.45% | $668.78K |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Abg-wtt global life science capital partners gp | 1.85M | 33.06% | $6.17M |
| Kennedy lewis management lp | 4.94M | 14.06% | $3.26M |
| Bain capital life sciences investors | 8.43M | 1.87% | $28.17M |
| Parkman healthcare partners | 913.44K | 0.32% | $3.05M |
| Evernest financial advisors | 200.23K | 0.19% | $668.78K |
| Nano cap new millennium growth fund l p | 25.00K | 0.06% | $72.50M |
| Advent corp/ma | 577.78K | 0.04% | $1.93M |
| Essex investment management | 62.33K | 0.03% | $208.17K |
| Eam investors | 77.18K | 0.02% | $223.83K |
| Schonfeld strategic advisors | 646.58K | 0.01% | $2.16M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Evernest financial advisors | 200.23K | 0.19% | 156.23K |
| Sei investments | 93.62K | 0.00% | 93.62K |
| Eam investors | 77.18K | 0.02% | 77.18K |
| Jane street group | 105.30K | - | 67.16K |
| Goldman sachs group | 55.31K | - | 55.31K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Glenview capital management | - | - | -547.99K |
| Schonfeld strategic advisors | 646.58K | 0.01% | -391.09K |
| Blackrock | 648.52K | - | -371.21K |
| Blackrock funding, inc. /de | 156.67K | - | -327.20K |
| Omers administration | - | - | -109.40K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Sei investments | 93.62K | 0.00% | 93.62K | $271.49K |
| Goldman sachs group | 55.31K | - | 55.31K | $160.39K |
| Nano cap new millennium growth fund l p | 25.00K | 0.06% | 25.00K | $72.50M |
| Barclays | 24.86K | - | 24.86K | $72.09K |
Sold Out
| Holder | Change |
|---|---|
| Qube research | -4.00 |
| Steward partners investment advisory | -100.00 |
| Wells fargo & company/mn | -157.00 |
| Tower research capital llc (trc) | -350.00 |
| Two sigma securities | -10.97K |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Dec 31, 2025 | 26 | -10.34% | 2,369,491 | -84.02% | 5 | 0.48% | 17 | 30.77% | 4 | -42.86% |
| Sep 30, 2025 | 29 | 7.41% | 14,828,837 | -1.72% | 33 | 2.91% | 13 | 8.33% | 7 | -12.50% |
| Jun 30, 2025 | 28 | - | 15,145,310 | -1.11% | 33 | 2.80% | 14 | -36.36% | 7 | 75.00% |
| Mar 31, 2025 | 1 | -94.44% | 577,777 | -95.16% | 1 | 0.18% | - | -100.00% | - | -100.00% |
| Dec 31, 2024 | 18 | - | 11,949,084 | -31.95% | 27 | 1.69% | 8 | 60.00% | 3 | -50.00% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard Total Stock Mkt Idx Inv | 750.98K | 1.69% | 112.80K |
| BlackRock Health Sciences Term Trust | 333.06K | 0.75% | - |
| IMC US Ultra Micro Cap | 261.91K | 0.59% | 167.93K |
| Vanguard Institutional Extnd Mkt Idx Tr | 191.28K | 0.43% | - |
| Fidelity Extended Market Index | 101.15K | 0.23% | 1.19K |
| Pleiades Small Cap Equity A | 93.62K | 0.21% | 93.62K |
| iShares Micro-Cap ETF | 84.67K | 0.19% | 33.61K |
| Blackrock Extended Mkt Fund CF | 69.22K | 0.16% | 69.22K |
| Extended Equity Market Fund K | 59.37K | 0.13% | 39.00 |
| Fidelity Total Market Index | 31.52K | 0.07% | - |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Mar 11, 2026 | Wilson John J. Addington | CHIEF OPERATING OFFICER | Sell | $41.47K |
| Mar 11, 2026 | WIRTJES SEAN M | CHIEF FINANCIAL OFFICER | Sell | $32.30K |
| Mar 10, 2026 | Spignesi Robert G. Jr. | PRESIDENT AND CEO | Sell | $73.69K |
| Feb 20, 2026 | Wilson John J. Addington | CHIEF OPERATING OFFICER | Sell | $21.20K |
| Feb 20, 2026 | WIRTJES SEAN M | CHIEF FINANCIAL OFFICER | Sell | $67.69K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q1 | - | 14 |
| 2025 Q4 | - | - |
| 2025 Q3 | - | 5 |
| 2025 Q2 | - | - |
| 2025 Q1 | - | - |
RPID Ownership FAQ
Try Tickergate Pro Free
Customize Everything. 100% Flexibility. Fast and Easy to Use (No code or Excel Needed)
Customize your own personal stocks lists, views and charts
Choose from hundreds of fields, up to 15 years of history
Conduct deep comparison analysis
Discover trending investment themes
Find your next best investment
Research stocks using tools