Rapid Micro Stock Insiders
| RPID Stock | USD 2.56 0.03 1.19% |
For Rapid Micro, the institutional, insider, and retail holders disclosed in regulatory filings are tracked. Rapid Micro's shareholder base is 58.05% institutional and 9.93% insider. Quarter-over-quarter institutional ownership changes can signal accumulation or distribution trends.
Insider Sentiment
SellingBuying
0 · Aggressively Selling
Rapid Micro's insiders appear positioned to sell. Overall insider positioning in Rapid Micro Biosystems stock suggests all insiders are strongly bearish at this time.
Latest Trades
| 2026-03-11 | John J Addington Wilson | Disposed 9603 @ 4.32 | View | ||
| 2026-03-10 | Robert G Jr. Spignesi | Disposed 17922 @ 4.11 | View | ||
| 2026-02-20 | Sean M Wirtjes | Disposed 17254 @ 3.92 | View | ||
| 2026-02-19 | Robert G Jr. Spignesi | Disposed 38327 @ 3.89 | View | ||
| 2026-02-09 | Sean M Wirtjes | Disposed 6027 @ 3.78 | View | ||
| 2026-02-04 | Longitude Capital Partners Ii, | Disposed 49000 @ 3.88 | View | ||
| 2026-02-02 | Longitude Capital Partners Ii, | Disposed 27500 @ 4.25 | View | ||
| 2026-01-30 | Longitude Capital Partners Ii, | Disposed 46000 @ 4.54 | View | ||
| 2026-01-23 | Longitude Capital Partners Ii, | Disposed 7739 @ 4.06 | View | ||
| 2025-07-14 | Robert G Jr. Spignesi | Disposed 11881 @ 3.32 | View | ||
| 2025-07-11 | Robert G Jr. Spignesi | Disposed 11874 @ 3.33 | View | ||
| 2025-07-10 | Robert G Jr. Spignesi | Disposed 11617 @ 3.4 | View | ||
| 2025-07-09 | Robert G Jr. Spignesi | Disposed 11247 @ 3.51 | View | ||
| 2025-07-08 | Robert G Jr. Spignesi | Disposed 10824 @ 3.51 | View |
Monitoring insider sentiment in Rapid Micro opens another window into how people closest to the business may be assessing current prospects. In practice, insider trading analysis complements fundamental analysis and technical analysis rather than replacing either one.
Rapid Micro |
Rapid Micro's Workforce Through the Years
A workforce review of Rapid Micro matters because hiring and staffing trends often say something about growth plans, cost discipline, and management expectations. Reported staffing levels near about 200 employees reflect the current operating footprint and warrant comparison with broader business results. Reported workforce figures may vary across disclosures and time periods; aggregated or historical datasets can reflect different figures depending on reporting scope and methodology.Macro event markers
Management Team Effectiveness
RPID has return on total asset (ROA) of -34.24% indicating negative asset-level profitability for it. Below zero, indicating a loss position. Rapid Micro also reports a return on stockholder's equity (ROE) of -86.82%, which implies that shareholder value decreased during the period.In the latest reported period, Common Stock Shares Outstanding is broadly unchanged at 44.68 million.
Stock Institutional Investors
Rapid Micro Biosystems's institutional and insider mix shapes how the stock trades around earnings. Annual revenue is about 33.59 million. The business currently sits in the Communication Services sector and the Telecommunication Services industry. That institutional share is enough to anchor governance but can also amplify selling when risk sentiment shifts.
| Shares | 683 Capital Management Llc | 2025-12-31 | 120.8 K | Millennium Management Llc | 2025-12-31 | 116.5 K | Renaissance Technologies Corp | 2025-12-31 | 115.6 K | Jane Street Group Llc | 2025-12-31 | 105.3 K | Sei Investments Co | 2025-12-31 | 93.6 K | State Street Corp | 2025-12-31 | 91.5 K | The Informed Momentum Company (formerly Eam Investors) | 2025-12-31 | 77.2 K | Marshall Wace Asset Management Ltd | 2025-12-31 | 62.9 K | Essex Investment Management Company, Llc | 2025-12-31 | 62.3 K | Bain Capital Life Sciences Investors, Llc | 2025-12-31 | 8.4 M | Abg-wtt Global Life Science Capital Partners Gp Ltd | 2025-12-31 | 1.8 M |
Insider Trading Activities
The analytical value in Rapid Micro's insider filings lies in transaction clustering, trade size, and timing relative to price movements rather than any single filing. The goal is to tell routine pay-related sales apart from trades that reflect genuine conviction.
Outstanding Bonds
Reviewing Rapid Micro Biosystems bond obligations provides context for understanding how much of the business is financed with fixed-income capital rather than purely with equity. This is why bond analysis is not just a credit exercise; it also informs equity holders about solvency, optionality, and future capital-allocation pressure.
| MPLX LP 4125 Corp BondUS55336VAK61 | View | |
| MPLX LP 52 Corp BondUS55336VAL45 | View | |
| Morgan Stanley Jul Corp BondUS61744YAK47 | View | |
| Morgan Stanley 3971 Corp BondUS61744YAL20 | View | |
| MGM Resorts International Corp BondUS552953CD18 | View | |
| Valero Energy Partners Corp BondUS91914JAA07 | View |
Shares in Circulation | First Issued 2019-12-31 | Previous Quarter 44.53 million | Current Value 44.62 million | Average Shares Outstanding 40.01 million | Quarterly Volatility 5.11 million |
Macro event markers
Holders Distribution
Institutional investors in Rapid Micro Biosystems typically operate with more research capacity, technology, and trading scale than retail holders, which is why their activity can materially affect price behavior. In practice, the ownership map shows where professional sponsorship may be strong and where exit risk could still be significant.
Market Cap and Value
Workforce Comparison
Rapid Micro Biosystems leads all stocks for number of employees relative to top peers. The total workforce of Communication Services industry is at this time estimated at about 1,214. Rapid Micro retains roughly 171 in number of employees claiming about 14% of market share in Communication Services space.
RPID has Profit Margin (PM) of -1.4%. Similarly, it shows Operating Margin (OM) of -1.08%. Insider Trading History
Rapid Micro's insider log provides a timeline of management conviction alongside earnings and guidance changes. Sustained buying at different price levels is a stronger signal than routine scheduled sales under 10b5-1 plans.
| Buy/Sell Ratio | # Purchases Trades | # Sales Trades | Total Shares Purchased | Total Shares Sold | |
|---|---|---|---|---|---|
| 2026-03-01 | 0.5 | 8 | 16 | 1,932,874 | 407,079 |
| 2025-12-01 | 0.5 | 2 | 4 | 11,233 | 54,679 |
| 2025-09-01 | 1.0 | 5 | 5 | 125,723 | 57,443 |
| 2025-03-01 | 0.6667 | 6 | 9 | 1,069,000 | 74,111 |
| 2024-03-01 | 1.0 | 8 | 8 | 694,000 | 54,476 |
| 2023-03-01 | 2.0 | 10 | 5 | 1,403,550 | 31,477 |
| 2022-03-01 | 14.0 | 14 | 1 | 993,750 | 10,000 |
| 2021-09-01 | 0.5238 | 22 | 42 | 18,251,290 | 89,992,133 |
Notable Stakeholders
A Rapid Micro stakeholder is any individual or group with an interest in the outcome of the business, which is why stakeholder analysis can reveal who may influence strategy and oversight. The practical value is in seeing where interests align, where they conflict, and how that tension could influence execution.
| Robert Spignesi | CEO and President, COO & Director | Profile | |
| Sean Wirtjes | CFO | Profile | |
| Katherine Atkinson | Senior VP of Global Sales & Marketing | Profile | |
| Julie Jarvie | Senior VP of Human Resources | Profile | |
| James Xu | Senior VP of Legal & Secretary | Profile | |
| Michael Beaulieu | Vice President of Investor Relations & Corporate Communications | Profile | |
| Jonathan Paris | Gen VP | Profile |
Management Information & Data Sources
Rapid Micro is a micro-cap company across Wireless Telecommunication Services, Telecommunication Services, Communication Services. Board composition and governance structure frame oversight quality and strategic accountability. Compensation alignment between executives and shareholders is a key governance signal. CEO is Robert Spignesi with 171 employees and 7 reported executives.
Rapid Micro Biosystems data is compiled from periodic company reporting and market reference feeds and standardized for comparability. Insider and management fields are mapped from published filings and company disclosures.
Editorial review and methodology oversight provided by: Michael Smolkin, Member of Macroaxis Board of Directors
Workforce Efficiency and Productivity
Workforce metrics tied to Rapid Micro Biosystems offer a useful way to test whether headcount and economic output are moving in a productive direction. A disciplined workforce review can reveal whether execution quality is improving beneath the top-line numbers.
Rapid Micro Manpower Efficiency
Return on Rapid Micro Manpower
| Revenue Per Employee | 196.4K | |
| Revenue Per Executive | 4.8M | |
| Net Loss Per Employee | 275.6K | |
| Net Loss Per Executive | 6.7M | |
| Working Capital Per Employee | 249.6K | |
| Working Capital Per Executive | 6.1M |
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