| $350M | ||
| $217M | ||
| $172M | ||
| $109M | ||
| $107M | ||
| $104M |
Buys | $0 | 0 | 0 |
Sells | $1,138,003 | 14 | 100 |
| Wilson John J. Addington | CHIEF OPERATING OFFICER | 0 | $0 | 3 | $80,101 | $-80,101 |
| WIRTJES SEAN M | CHIEF FINANCIAL OFFICER | 0 | $0 | 3 | $122,785 | $-122,785 |
| Spignesi Robert G. Jr. | PRESIDENT AND CEO | 0 | $0 | 3 | $271,168 | $-271,168 |
| Longitude Capital Partners II, LLC | 10 percent owner | 0 | $0 | 5 | $663,949 | $-663,949 |
Rapid Micro Biosystems, Inc. operates as a life sciences technology firm, supplying advanced solutions for identifying microbial impurities in the production processes of pharmaceuticals, medical devices, and personal care goods across North America, Europe, and Asia. Central to their offerings is the Growth Direct platform, a comprehensive system comprising the Growth Direct instrument, specialized disposable components, software for seamless integration with laboratory information management systems (LIMS), and extensive customer validation …
Over the last 12 months, insiders at Rapid Micro Biosystems, Inc. have bought $0 and sold $1.14M worth of Rapid Micro Biosystems, Inc. stock.
On average, over the past 5 years, insiders at Rapid Micro Biosystems, Inc. have bought $165,663 and sold $666,980 worth of stock each year.
There was no buying activity among insiders over the last 12 months.
The last purchase of 9,120 shares for transaction amount of $9,484 was made by PEI MELINDA LITHERLAND (director) on 2024‑12‑05.
| 2026-03-11 | Sale | WIRTJES SEAN M | CHIEF FINANCIAL OFFICER | 7,480 0.0166% | $4.32 | $32,299 | -57.08% | |
| 2026-03-11 | Sale | Wilson John J. Addington | CHIEF OPERATING OFFICER | 9,603 0.0214% | $4.32 | $41,467 | -57.08% | |
| 2026-03-10 | Sale | Spignesi Robert G. Jr. | PRESIDENT AND CEO | 17,922 0.0396% | $4.11 | $73,686 | -54.48% | |
| 2026-02-20 | Sale | WIRTJES SEAN M | CHIEF FINANCIAL OFFICER | 17,254 0.0393% | $3.92 | $67,687 | -49.10% | |
| 2026-02-20 | Sale | Wilson John J. Addington | CHIEF OPERATING OFFICER | 5,403 0.0123% | $3.92 | $21,196 | -49.10% | |
| 2026-02-19 | Sale | Spignesi Robert G. Jr. | PRESIDENT AND CEO | 38,327 0.0806% | $3.89 | $148,912 | -50.00% | |
| 2026-02-09 | Sale | Spignesi Robert G. Jr. | PRESIDENT AND CEO | 12,840 0.0292% | $3.78 | $48,570 | -46.93% | |
| 2026-02-09 | Sale | WIRTJES SEAN M | CHIEF FINANCIAL OFFICER | 6,027 0.0137% | $3.78 | $22,798 | -46.93% | |
| 2026-02-09 | Sale | Wilson John J. Addington | CHIEF OPERATING OFFICER | 4,610 0.0105% | $3.78 | $17,438 | -46.93% | |
| 2026-02-04 | Sale | Longitude Capital Partners II, LLC | 10 percent owner | 49,000 0.1103% | $3.88 | $190,091 | -48.59% | |
| 2026-02-03 | Sale | Longitude Capital Partners II, LLC | 10 percent owner | 27,500 0.0605% | $4.24 | $116,641 | -53.79% | |
| 2026-02-02 | Sale | Longitude Capital Partners II, LLC | 10 percent owner | 27,500 0.0629% | $4.25 | $116,765 | -52.03% | |
| 2026-01-30 | Sale | Longitude Capital Partners II, LLC | 10 percent owner | 46,000 0.1064% | $4.54 | $209,001 | -54.63% | |
| 2026-01-23 | Sale | Longitude Capital Partners II, LLC | 10 percent owner | 7,739 0.0172% | $4.06 | $31,451 | -51.21% | |
| 2025-07-14 | Sale | Spignesi Robert G. Jr. | PRESIDENT AND CEO | 11,881 0.0281% | $3.32 | $39,481 | -5.00% | |
| 2025-07-11 | Sale | Spignesi Robert G. Jr. | PRESIDENT AND CEO | 11,874 0.0268% | $3.33 | $39,499 | -9.38% | |
| 2025-07-10 | Sale | Spignesi Robert G. Jr. | PRESIDENT AND CEO | 11,617 0.0267% | $3.40 | $39,475 | -9.50% | |
| 2025-07-09 | Sale | Spignesi Robert G. Jr. | PRESIDENT AND CEO | 11,247 0.026% | $3.51 | $39,480 | -12.10% | |
| 2025-07-08 | Sale | Spignesi Robert G. Jr. | PRESIDENT AND CEO | 10,824 0.0248% | $3.51 | $38,021 | -12.57% | |
| 2024-12-05 | PEI MELINDA LITHERLAND | director | 9,120 0.0212% | $1.04 | $9,484 | +184.95% |
| Spignesi Robert G. Jr. | PRESIDENT AND CEO | 1169848 2.5621% | $809,534.82 | 5 | 8 | +27.58% |
| WIRTJES SEAN M | CHIEF FINANCIAL OFFICER | 556194 1.2181% | $384,886.25 | 2 | 3 | +91.51% |
| Longitude Capital Partners II, LLC | 10 percent owner | 0 0% | $0 | 1 | 5 | <0.0001% |
| Bain Capital Life Sciences Investors, LLC | 10 percent owner | 8434560 18.4725% | $5.84M | 1 | 0 | <0.0001% |
| CHENE DAVID | 2035441 4.4578% | $1.41M | 4 | 0 | <0.0001% | |
| Kollender Richard S | director | 96718 0.2118% | $66,928.86 | 1 | 0 | +165.69% |
| Malloy Kirk | director | 64300 0.1408% | $44,495.60 | 1 | 0 | +156.41% |
| PEI MELINDA LITHERLAND | director | 54300 0.1189% | $37,575.60 | 4 | 0 | +184.43% |
| LOWENSTEIN INESE | 10000 0.0219% | $6,920.00 | 1 | 0 | <0.0001% |
| Increased Positions | 26 | +96.3% | 1M | +7.34% |
| Decreased Positions | 9 | -33.33% | 1M | -8.74% |
| New Positions | 15 | New | 824,291 | New |
| Sold Out Positions | 2 | Sold Out | 33,626 | Sold Out |
| Total Postitions | 44 | +62.96% | 15M | -1.41% |
| Bain Capital Life Sciences Investors, Llc | $26,485.00 | 21.09% | 8.43M | 0 | 0% | 2025-09-30 |
| Abg-Wtt Global Life Science Capital Partners Gp Ltd | $5,804.00 | 4.62% | 1.85M | 0 | 0% | 2025-09-30 |
| Vanguard Group Inc | $3,030.00 | 2.41% | 965,018 | +60,655 | +6.71% | 2025-09-30 |
| Parkman Healthcare Partners Llc | $2,868.00 | 2.28% | 913,443 | 0 | 0% | 2025-09-30 |
| Schonfeld Strategic Advisors Llc | $2,030.00 | 1.62% | 646,579 | -391,089 | -37.69% | 2025-09-30 |
| Advent International, L.P. | $1,814.00 | 1.44% | 577,777 | 0 | 0% | 2025-09-30 |
| Blackrock, Inc. | $1,519.00 | 1.21% | 483,871 | +7,054 | +1.48% | 2025-09-30 |
| Geode Capital Management, Llc | $643.00 | 0.51% | 204,687 | +608 | +0.3% | 2025-09-30 |
| Evernest Financial Advisors, Llc | $629.00 | 0.5% | 200,234 | +156,234 | +355.08% | 2025-09-30 |
| Renaissance Technologies Llc | $346.00 | 0.28% | 110,187 | -800 | -0.72% | 2025-09-30 |