Funds holding Rapid Micro Biosystems Inc
ISIN US75340L1044 · United States
- Fund holders
- 13
- Of which ETFs
- 3 10 other funds
- Value held
- 2.4M $
| Fund | Shares | Value | Weight in fund | |
|---|---|---|---|---|
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 750,984 | 1.3M $ | 0.00 % | as of Jun 30, 2026 ↗ |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 202,760 | 350.8K $ | 0.00 % | as of Jun 30, 2026 ↗ |
| iShares Micro-Cap ETF iShares Trust | 112,127 | 194K $ | 0.01 % | as of Jun 30, 2026 ↗ |
| Fidelity Extended Market Index Fund Fidelity Concord Street Trust | 107,845 | 216.8K $ | 0.00 % | as of May 31, 2026 ↗ |
| Fidelity Total Market Index Fund Fidelity Concord Street Trust | 31,525 | 63.4K $ | as of May 31, 2026 ↗ | |
| Dimensional U.S. Small Cap ETF Dimensional ETF Trust | 30,705 | 65.4K $ | 0.00 % | as of Jul 31, 2026 ↗ |
| Fidelity Series Total Market Index Fund Fidelity Concord Street Trust | 28,726 | 57.7K $ | 0.00 % | as of May 31, 2026 ↗ |
| Fidelity Nasdaq Composite Index Fund Fidelity Concord Street Trust | 26,152 | 52.6K $ | 0.00 % | as of May 31, 2026 ↗ |
| U.S. MICRO CAP PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 14,363 | 30.6K $ | 0.00 % | as of Jul 31, 2026 ↗ |
| VANGUARD BALANCED INDEX FUND VANGUARD VALLEY FORGE FUNDS | 14,205 | 24.6K $ | as of Jun 30, 2026 ↗ | |
| VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND VANGUARD INSTITUTIONAL INDEX FUNDS | 14,085 | 24.4K $ | 0.00 % | as of Jun 30, 2026 ↗ |
| Avantis U.S. Small Cap Equity ETF American Century ETF Trust | 11,638 | 23.4K $ | 0.00 % | as of May 31, 2026 ↗ |
| 1290 VT Micro Cap Portfolio EQ Advisors Trust | 7,524 | 13K $ | 0.01 % | as of Jun 30, 2026 ↗ |
The funds most exposed to it
The weight is the share of a fund's net assets. The holders table ranks funds by number of shares. This one ranks them by the weight of the company in each fund.
| Fund | Weight in fund | |
|---|---|---|
| iShares Micro-Cap ETF iShares Trust | 0.01 % | as of Jun 30, 2026 ↗ |
| 1290 VT Micro Cap Portfolio EQ Advisors Trust | 0.01 % | as of Jun 30, 2026 ↗ |
| Avantis U.S. Small Cap Equity ETF American Century ETF Trust | 0.00 % | as of May 31, 2026 ↗ |
| Fidelity Extended Market Index Fund Fidelity Concord Street Trust | 0.00 % | as of May 31, 2026 ↗ |
| Dimensional U.S. Small Cap ETF Dimensional ETF Trust | 0.00 % | as of Jul 31, 2026 ↗ |
| U.S. MICRO CAP PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 0.00 % | as of Jul 31, 2026 ↗ |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 0.00 % | as of Jun 30, 2026 ↗ |
| Fidelity Nasdaq Composite Index Fund Fidelity Concord Street Trust | 0.00 % | as of May 31, 2026 ↗ |
| Fidelity Series Total Market Index Fund Fidelity Concord Street Trust | 0.00 % | as of May 31, 2026 ↗ |
| VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND VANGUARD INSTITUTIONAL INDEX FUNDS | 0.00 % | as of Jun 30, 2026 ↗ |
Quarter after quarter
Each row is one quarter of SEC filings, newest first. The change compares each quarter with the one before.
| Quarter | Holders | Change | Shares | Change |
|---|---|---|---|---|
| 2026Q3 | 13 | -8 | 1,352,639 | -12.9 % |
| 2026Q2 | 21 | +1 | 1,552,703 | +32.9 % |
| 2026Q1 | 20 | 0 | 1,168,447 | +2.0 % |
| 2025Q4 | 20 | +3 | 1,145,866 | -3.5 % |
| 2025Q3 | 17 | +7 | 1,187,930 | +11.2 % |
| 2025Q2 | 10 | +3 | 1,067,847 | +24.1 % |
| 2025Q1 | 7 | -1 | 860,139 | -2.9 % |
| 2024Q4 | 8 | -5 | 885,948 | -24.3 % |
| 2024Q3 | 13 | 0 | 1,169,815 | -12.5 % |
| 2024Q2 | 13 | 0 | 1,336,999 | +0.3 % |
| 2024Q1 | 13 | 0 | 1,333,084 | +4.7 % |
| 2023Q4 | 13 | 1,272,936 |
Institutional managers
43 managers declare this company to the SEC (Form 13F). The table shows the 25 largest.
| Manager | Shares | Value | |
|---|---|---|---|
| Bain Capital Life Sciences Investors, LLC | 8,434,560 | 19.1M $ | as of Mar 31, 2026 |
| ABG-WTT Global Life Science Capital Partners GP Ltd | 1,848,296 | 4.2M $ | as of Mar 31, 2026 |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 883,931 | 2M $ | as of Mar 31, 2026 |
| Advent International, L.P. | 552,377 | 1.3M $ | as of Mar 31, 2026 |
| Evernest Financial Advisors, LLC | 432,510 | 1M $ | as of Mar 31, 2026 |
| SEI INVESTMENTS CO | 284,816 | 646.5K $ | as of Mar 31, 2026 |
| MILLENNIUM MANAGEMENT LLC | 283,280 | 643K $ | as of Mar 31, 2026 |
| Legato Capital Management LLC | 274,924 | 624.1K $ | as of Mar 31, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | 247,177 | 561.3K $ | as of Mar 31, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 212,114 | 481.5K $ | as of Mar 31, 2026 |
| BlackRock, Inc. | 157,232 | 356.9K $ | as of Mar 31, 2026 |
| JANE STREET GROUP, LLC | 132,925 | 301.7K $ | as of Mar 31, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | 126,617 | 287.4K $ | as of Mar 31, 2026 |
| 683 Capital Management, LLC | 120,773 | 274.2K $ | as of Mar 31, 2026 |
| STATE STREET CORP | 93,874 | 213.1K $ | as of Mar 31, 2026 |
| DIMENSIONAL FUND ADVISORS LP | 87,589 | 198.7K $ | as of Mar 31, 2026 |
| GOLDMAN SACHS GROUP INC | 71,912 | 163.2K $ | as of Mar 31, 2026 |
| FIFTH LANE CAPITAL, LP | 71,000 | 161.2K $ | as of Mar 31, 2026 |
| XTX Topco Ltd | 61,070 | 138.6K $ | as of Mar 31, 2026 |
| NORTHERN TRUST CORP | 48,279 | 109.6K $ | as of Mar 31, 2026 |
| BANK OF AMERICA CORP /DE/ | 31,014 | 70.4K $ | as of Mar 31, 2026 |
| MORGAN STANLEY | 29,207 | 66.3K $ | as of Mar 31, 2026 |
| ALGERT GLOBAL LLC | 23,181 | 53 $ | as of Mar 31, 2026 |
| Temasek Holdings (Private) Ltd | 21,818 | 49.5K $ | as of Mar 31, 2026 |
| BARCLAYS PLC | 21,595 | 49K $ | as of Mar 31, 2026 |
Declared shareholders of Rapid Micro Biosystems Inc
There are 2 beneficial ownership filings. These stakes do not add up. An asset manager that files includes its own funds, which already appear among the funds on this page.
| Shareholder | Declared stake | Shares | |
|---|---|---|---|
| Bain Capital Life Sciences Fund, L.P. and 1 other | 16.76 % | 7,651,369 | as of Jun 30, 2026 · SCHEDULE 13G |
| Armistice Capital, LLC and 1 other | 7.29 % | 3,328,000 | as of Jun 30, 2026 · SCHEDULE 13G |
Cite this page
Titelia. "Funds holding Rapid Micro Biosystems Inc". https://titelia.com/en/stocks/rapid-micro-biosystems-inc-US75340L1044