# RAPID MICRO BIOSYSTEMS INC (RPID)

> Institutional ownership reported to the SEC as of Q2 2026, from Form 13F filings. Source: https://holderbook.com/stocks/RPID/

- Reporting holders: 34
- Reported value: $30.5M
- Held through calls: 0.0%
- Held through puts: 0.0%

A 13F reports long US equity positions only. Shorts, bonds, foreign listings and cash are not visible here, and positions are disclosed up to 45 days after the quarter ends.

## Largest holders

| Manager | Value | Shares | Share of their book | Quarters held |
|---|---|---|---|---|
| [Bain Capital Life Sciences Investors, LLC](https://holderbook.com/funds/1703031-bain-capital-life-sciences-investors-llc/) | $14.6M | 8,434,560 | 0.9% | 20 |
| [ARMISTICE CAPITAL, LLC](https://holderbook.com/funds/1601086-armistice-capital-llc/) | $5.8M | 3,328,000 | 0.1% | 1 |
| [ABG-WTT Global Life Science Capital Partners GP Ltd](https://holderbook.com/funds/1832108-abg-wtt-global-life-science-capital-partners-gp-ltd/) | $3.2M | 1,848,296 | 37.4% | 18 |
| [VANGUARD CAPITAL MANAGEMENT LLC](https://holderbook.com/funds/2100119-vanguard-capital-management-llc/) | $1.7M | 982,034 | 0.0% | 2 |
| [Evernest Financial Advisors, LLC](https://holderbook.com/funds/2009530-evernest-financial-advisors-llc/) | $875.4K | 506,000 | 0.2% | 6 |
| [Advent International, L.P.](https://holderbook.com/funds/1034196-advent-international-l-p/) | $657.0K | 379,794 | 0.0% | 20 |
| [ESSEX INVESTMENT MANAGEMENT CO LLC](https://holderbook.com/funds/201772-essex-investment-management-co-llc/) | $627.5K | 362,696 | 0.1% | 6 |
| [MILLENNIUM MANAGEMENT LLC](https://holderbook.com/funds/1273087-millennium-management-llc/) | $409.3K | 236,599 | 0.0% | 3 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://holderbook.com/funds/1214717-geode-capital-management-llc/) | $394.7K | 228,041 | 0.0% | 20 |
| [RENAISSANCE TECHNOLOGIES LLC](https://holderbook.com/funds/1037389-renaissance-technologies-llc/) | $366.9K | 212,101 | 0.0% | 14 |
| [BlackRock, Inc.](https://holderbook.com/funds/2012383-blackrock-inc/) | $328.4K | 189,832 | 0.0% | 8 |
| [STATE STREET CORP](https://holderbook.com/funds/93751-state-street-corp/) | $324.8K | 187,748 | 0.0% | 20 |
| [Legato Capital Management LLC](https://holderbook.com/funds/1442641-legato-capital-management-llc/) | $206.8K | 119,534 | 0.0% | 6 |
| [VANGUARD FIDUCIARY TRUST CO](https://holderbook.com/funds/933478-vanguard-fiduciary-trust-co/) | $191.1K | 110,484 | 0.0% | 2 |
| [DIMENSIONAL FUND ADVISORS LP](https://holderbook.com/funds/354204-dimensional-fund-advisors-lp/) | $180.3K | 104,192 | 0.0% | 6 |
| [XTX Topco Ltd](https://holderbook.com/funds/1828301-xtx-topco-ltd/) | $137.9K | 79,727 | 0.0% | 2 |
| [SEI INVESTMENTS CO](https://holderbook.com/funds/350894-sei-investments-co/) | $115.7K | 66,869 | 0.0% | 3 |
| [NORTHERN TRUST CORP](https://holderbook.com/funds/73124-northern-trust-corp/) | $72.8K | 42,106 | 0.0% | 20 |
| [ALGERT GLOBAL LLC](https://holderbook.com/funds/1275218-algert-global-llc/) | $66.3K | 38,307 | 0.0% | 2 |
| [CITADEL ADVISORS LLC](https://holderbook.com/funds/1423053-citadel-advisors-llc/) | $55.9K | 32,284 | 0.0% | 1 |
| [MORGAN STANLEY](https://holderbook.com/funds/895421-morgan-stanley/) | $47.7K | 27,587 | 0.0% | 20 |
| [JANE STREET GROUP, LLC](https://holderbook.com/funds/1595888-jane-street-group-llc/) | $44.9K | 25,931 | 0.0% | 4 |
| [HRT FINANCIAL LP](https://holderbook.com/funds/1475597-hrt-financial-lp/) | $39.0K | 23,093 | 0.0% | 1 |
| [OSAIC HOLDINGS, INC.](https://holderbook.com/funds/1677044-osaic-holdings-inc/) | $24.7K | 14,300 | 0.0% | 6 |
| [NANO CAP NEW MILLENNIUM GROWTH FUND L P](https://holderbook.com/funds/1277890-nano-cap-new-millennium-growth-fund-l-p/) | $21.6K | 12,500 | 0.0% | 3 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q2 2026 | 34 | $30.5M |
| Q1 2026 | 46 | $36.0M |
| Q4 2025 | 42 | $42.5M |
| Q3 2025 | 29 | $49.5M |
| Q2 2025 | 29 | $52.3M |
| Q1 2025 | 28 | $40.4M |
| Q4 2024 | 18 | $10.8M |
| Q3 2024 | 17 | $11.5M |
| Q2 2024 | 19 | $12.6M |
| Q1 2024 | 21 | $18.9M |
| Q4 2023 | 23 | $11.8M |
| Q3 2023 | 23 | $23.2M |