$RPID
Rapid Micro Biosystems, Inc. Class A Common Stock
XNAS•Technology•Laboratory Analytical Instruments
$1.09
▼-1.80%-$0.020
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Plans & pricingDonateRapid Micro Biosystems, Inc. Class A Common Stock
XNAS•Technology•Laboratory Analytical Instruments
Why is RPID down today? It is at $1.09 (-1.80%), and our scanner flagged it 3 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment RPID spikes, and full due diligence on RPID — key stats, earnings, dilution and insider activity. Free.
Our scanner flagged $RPID 3 times in the last 30 days. Create a free account to track $RPID, build a watchlist, and get instant unusual-volume alerts, with a full day of premium now and 5 more when you verify your email, no card needed.
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Here is the latest on RPID from our scanner (live price and day move above). We have not detected an unusual-volume catalyst for RPID today, so it is trading in line with its recent range. The moment our scanner flags unusual activity, the reason will appear here.
Latest filingSC 13GPassive 5%+ stake disclosedAug 14, 2026 · 34 days agoAcross every filing on file, supply equal to 6% of the tradeable float is in play - 6% has already been sold.
Recent priced share offering — a one-time sale that has already completed (not ongoing)
1,463,000 new shares · Priced at $1.955/share
Sources: float & market cap via Polygon · short interest via FINRA · borrow & shortability via Alpaca · SSR from Reg SHO 201 · filings & dilution via SEC EDGAR · analysts via Nasdaq.
Auto-generated from public data for research and education. Not investment advice.
| Insider | Action | Shares | % of position | Owns after | Value | Date |
|---|---|---|---|---|---|---|
Kollender Richard S Director | Other | 4K | added 2.7% | 134K | $3K at $0.750 | Jul 24, 26 |
Spignesi Robert G. Jr. Officer | Other | 1K | added 0.1% | 1.19M | $1K at $0.750 | Jul 22, 26 |
Spignesi Robert G. Jr. Officer | Acquired (grant/award) | +13K 0.03% of company | added 1.1% | 1.19M | $25K at $1.96 | May 29, 26 |
Wirtjes Sean M Officer | Acquired (grant/award) | +13K 0.03% of company | added 2.3% | 569K | $25K at $1.96 | May 29, 26 |
Malloy Kirk Director | Acquired (grant/award) | +13K 0.03% of company | added 27% | 61K | $25K at $1.96 | May 29, 26 |
Pei Melinda Litherland Director | Acquired (grant/award) | +13K 0.03% of company | added 15% | 101K | $25K at $1.96 | May 29, 26 |
Lowenstein Inese Director | Acquired (grant/award) | +13K 0.03% of company | added 22% | 71K | $25K at $1.96 | May 29, 26 |
Bika Dafni Director | Acquired (grant/award) | +19K 0.04% of company | n/a | 19K | n/a | May 21, 26 |
Kollender Richard S Director | Acquired (grant/award) | +19K 0.04% of company | added 17% | 130K | n/a | May 21, 26 |
Pei Melinda Litherland Director | Acquired (grant/award) | +19K 0.04% of company | added 28% | 88K | n/a | May 21, 26 |
Lowenstein Inese Director | Acquired (grant/award) | +19K 0.04% of company | added 50% | 58K | n/a | May 21, 26 |
Malloy Kirk Director | Acquired (grant/award) | +19K 0.04% of company | added 67% | 48K | n/a | May 21, 26 |
Recent Form-4 filings via Nasdaq. Open-market buys are the signal worth watching. Grants and automatic (10b5-1) sells are routine. “% of position” is the share of that insider’s own holding the trade moved. Not investment advice.
Blend of news sentiment, today’s move, and community votes. Not investment advice.
News, unusual-volume alerts, AI-trader trades and community chatter - the whole story, newest first.
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Here is the latest on RPID from our scanner (live price and day move above). We have not detected an unusual-volume catalyst for RPID today, so it is trading in line with its recent range. The moment our scanner flags unusual activity, the reason will appear here.
RPID last traded at $1.09, down 1.80% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).
Rapid Micro Biosystems, Inc. Class A Common Stock (RPID) is next expected to report earnings on Friday, November 6, 2026, about 50 days away. Earnings reports often cause large overnight gaps, so many traders manage risk around the date. The date can shift until the company officially confirms it.
The RPID Live Alerts panel on this page streams real-time unusual volume (RVOL), momentum, halt and 200-EMA alerts from our scanner the moment they fire. Our scanner has flagged RPID 3 times in the last 30 days.
RPID (Rapid Micro Biosystems, Inc. Class A Common Stock) trades on XNAS, with a market cap of about $56M in the Laboratory Analytical Instruments sector.
That depends on your strategy and risk. Day traders look for volume, volatility and a clear trend. Use the live chart, RVOL alerts and 200-EMA context on this page to judge RPID for yourself. This is not investment advice.
Live data from TheDesperateTrader scanner. Not investment advice.
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