Rapid Micro Biosystems (RPID) Latest Stock Analysis Report – Oct 15, 2026, 4:00 PM ET
Updated Oct 15, 2026, 4:00 PM ET
- Closed at $0.85, +3.43% vs the prior close of $0.82.
- Volume 87.60K shares, 0.3x its 50-day average (light).
- No new SEC filings since the prior session.
- No new insider buys or sales reported since the prior session.
RPID jumps 3.4% to $0.85. Closed at $0.85, +3.43% vs the prior close of $0.82. Day range $0.81–$0.86, opened at $0.83.
RPID daily analysis — what happened
A plain-English, data-only note written after every US trading day. Newest first; older days stay archived below.
Oct 15, 2026 — RPID jumps 3.4% to $0.85
- Closed at $0.85, +3.43% vs the prior close of $0.82. Day range $0.81–$0.86, opened at $0.83.
- Volume was 87.60K shares, 0.3x its 50-day average of 280.97K — lighter than usual.
- Price is -34.8% vs its 50-day average ($1.30) and -64.4% vs its 200-day average ($2.37).
- 52-week range $0.81–$4.94; today's close sits at 1% of that range, 82.9% below the 52-week high.
Oct 14, 2026 — RPID slides 6.5% to $0.82, a 52-week low, 3 down days in a row
- Closed at $0.82, -6.52% vs the prior close of $0.87. Day range $0.81–$0.88, opened at $0.85.
- Volume was 145.10K shares, 0.5x its 50-day average of 282.04K — lighter than usual.
- Price is -38.2% vs its 50-day average ($1.32) and -65.7% vs its 200-day average ($2.38).
- 52-week range $0.81–$4.94; today's close sits at 0% of that range, 83.5% below the 52-week high.
- That makes 3 straight losses.
Oct 13, 2026 — RPID dips 0.6% to $0.87
- Closed at $0.87, -0.57% vs the prior close of $0.88. Day range $0.83–$0.91, opened at $0.88.
- Volume was 168.20K shares, 0.6x its 50-day average of 281.05K — lighter than usual.
- Price is -35.1% vs its 50-day average ($1.35) and -63.5% vs its 200-day average ($2.39).
- 52-week range $0.83–$4.94; today's close sits at 1% of that range, 82.3% below the 52-week high.
Oct 12, 2026 — RPID dips 1.7% to $0.88
- Closed at $0.88, -1.68% vs the prior close of $0.89. Day range $0.86–$0.90, opened at $0.89.
- Volume was 100.80K shares, 0.4x its 50-day average of 279.45K — lighter than usual.
- Price is -35.9% vs its 50-day average ($1.37) and -63.4% vs its 200-day average ($2.40).
- 52-week range $0.83–$4.94; today's close sits at 1% of that range, 82.2% below the 52-week high.
Oct 9, 2026 — RPID jumps 3.7% to $0.89
- Closed at $0.89, +3.71% vs the prior close of $0.86. Day range $0.86–$0.92, opened at $0.88.
- Volume was 214.50K shares, 0.8x its 50-day average of 277.71K.
- Price is -36.0% vs its 50-day average ($1.40) and -63.0% vs its 200-day average ($2.41).
- 52-week range $0.83–$4.94; today's close sits at 2% of that range, 81.9% below the 52-week high.
Oct 8, 2026 — RPID slides 4.0% to $0.86, a 52-week low, 3 down days in a row
- Closed at $0.86, -4.01% vs the prior close of $0.90. Day range $0.83–$0.91, opened at $0.91.
- Volume was 227.40K shares, 0.8x its 50-day average of 274.11K.
- Price is -39.4% vs its 50-day average ($1.42) and -64.5% vs its 200-day average ($2.43).
- 52-week range $0.83–$4.94; today's close sits at 1% of that range, 82.6% below the 52-week high.
- That makes 3 straight losses.
Oct 7, 2026 — RPID slides 4.8% to $0.90, a 52-week low
- Closed at $0.90, -4.77% vs the prior close of $0.94. Day range $0.89–$0.99, opened at $0.97.
- Volume was 218.90K shares, 0.8x its 50-day average of 271.70K.
- Price is -37.9% vs its 50-day average ($1.45) and -63.1% vs its 200-day average ($2.44).
- 52-week range $0.86–$4.94; today's close sits at 1% of that range, 81.8% below the 52-week high.
Oct 6, 2026 — RPID slides 3.4% to $0.94
- Closed at $0.94, -3.38% vs the prior close of $0.98. Day range $0.94–$1.00, opened at $1.00.
- Volume was 161.70K shares, 0.6x its 50-day average of 270.02K — lighter than usual.
- Price is -35.8% vs its 50-day average ($1.47) and -61.5% vs its 200-day average ($2.45).
- 52-week range $0.86–$4.94; today's close sits at 2% of that range, 80.9% below the 52-week high.
Oct 5, 2026 — RPID jumps 6.1% to $0.98
- Closed at $0.98, +6.09% vs the prior close of $0.92. Day range $0.91–$1.15, opened at $0.91.
- Volume was 444.70K shares, 1.7x its 50-day average of 265.00K.
- Price is -34.5% vs its 50-day average ($1.49) and -60.3% vs its 200-day average ($2.46).
- 52-week range $0.86–$4.94; today's close sits at 3% of that range, 80.2% below the 52-week high.
Oct 2, 2026 — RPID ends flat (-0.1%) to $0.92, a 52-week low, 8 down days in a row
- Closed at $0.92, -0.11% vs the prior close of $0.92. Day range $0.86–$1.00, opened at $0.96.
- Volume was 329.30K shares, 1.2x its 50-day average of 266.79K.
- Price is -39.1% vs its 50-day average ($1.51) and -62.8% vs its 200-day average ($2.47).
- 52-week range $0.86–$4.94; today's close sits at 1% of that range, 81.4% below the 52-week high.
- That makes 8 straight losses.
RPID latest news & SEC filings
Every SEC filing by or about RPID in the last 120 days, explained in plain English. Updated daily, with a same-day refresh for new filings.
Aug 14, 2026 · Form SCHEDULE 13G — Passive stake (13G)
Passive stake (13G) — an investor reported owning more than 5%
Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.
Aug 14, 2026 · Form SCHEDULE 13G/A — Update to a passive 5%+ stake (13G)
Update to a passive 5%+ stake (13G)
Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.
Aug 7, 2026 · Form 10-Q — Quarterly report
Quarterly report (unaudited financial statements for the quarter)
Quarter ended Jun 30, 2026:
- Revenue: $8.05M (prior year $7.26M) (+10.9% vs Jun 30, 2025)
- Net income: -$12.92M (prior year -$11.86M) (loss widened vs Jun 30, 2025)
- Diluted EPS: -$0.27 (prior year -$0.27) ( vs Jun 30, 2025)
Aug 7, 2026 · Form 8-K — Major event / current report
Current report — a filing companies must make within 4 business days of a major event
- Item 2.02 — Reported results of operations (earnings release).
This is a results-day filing: the earnings press release is attached as an exhibit.
Jul 24, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).
Jul 24, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).
Jul 8, 2026 · Form 144 — Planned insider sale
Notice of proposed sale (Form 144) — an insider or affiliate plans to sell restricted or control shares
A notice of intent, not a completed sale. Any actual sale by a director or officer shows up later on Form 4.
Jul 1, 2026 · Form 144 — Planned insider sale
Notice of proposed sale (Form 144) — an insider or affiliate plans to sell restricted or control shares
A notice of intent, not a completed sale. Any actual sale by a director or officer shows up later on Form 4.
Jun 22, 2026 · Form 144 — Planned insider sale
Notice of proposed sale (Form 144) — an insider or affiliate plans to sell restricted or control shares
A notice of intent, not a completed sale. Any actual sale by a director or officer shows up later on Form 4.
Things to know before you trade RPID
- Last results release: Aug 7, 2026 (8-K Item 2.02). Previous ones: May 13, 2026, Mar 12, 2026, Jan 13, 2026. Based on that rhythm, the next report is likely around Nov 6, 2026 — an estimate, not a confirmed date.
- How much it moves: over the last 20 sessions the average daily move was 2.97% (largest 10.6%).
- Liquidity: about 293.62K shares (≈$248.11K) trade per day on average. Thin volume can mean wider bid/ask spreads.
- 52-week position: $0.85 vs a range of $0.81–$4.94 (1% of the range).
- Dividends: no cash dividends in the last 2 years.
- Splits: none in the last 2 years.
- Insider trades (Form 4, last 12 months, recent 25 shown): 0 open-market buys, 25 sales; latest: Sean M Wirtjes sold 7,480 shares on Mar 11, 2026.
- Latest filings: 10-Q Aug 7, 2026; 8-K Aug 7, 2026; 8-K May 28, 2026.
- Listing: Nasdaq · industry: Laboratory Analytical Instruments.
RPID market data (last 20 sessions)
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| Oct 15, 2026 | 0.83 | 0.86 | 0.81 | 0.85 | 87.60K |
| Oct 14, 2026 | 0.85 | 0.88 | 0.81 | 0.82 | 145.10K |
| Oct 13, 2026 | 0.88 | 0.91 | 0.83 | 0.87 | 168.20K |
| Oct 12, 2026 | 0.89 | 0.90 | 0.86 | 0.88 | 100.80K |
| Oct 9, 2026 | 0.88 | 0.92 | 0.86 | 0.89 | 214.50K |
| Oct 8, 2026 | 0.91 | 0.91 | 0.83 | 0.86 | 227.40K |
| Oct 7, 2026 | 0.97 | 0.99 | 0.89 | 0.90 | 218.90K |
| Oct 6, 2026 | 1.00 | 1.00 | 0.94 | 0.94 | 161.70K |
| Oct 5, 2026 | 0.91 | 1.15 | 0.91 | 0.98 | 444.70K |
| Oct 2, 2026 | 0.96 | 1.00 | 0.86 | 0.92 | 329.30K |
| Oct 1, 2026 | 1.06 | 1.06 | 0.92 | 0.92 | 523.50K |
| Sep 30, 2026 | 1.10 | 1.10 | 1.03 | 1.03 | 179.90K |
| Sep 29, 2026 | 1.18 | 1.18 | 1.07 | 1.08 | 332.70K |
| Sep 28, 2026 | 1.13 | 1.18 | 1.08 | 1.10 | 268.30K |
| Sep 25, 2026 | 1.13 | 1.14 | 1.11 | 1.11 | 171.60K |
| Sep 24, 2026 | 1.10 | 1.12 | 1.10 | 1.11 | 504.40K |
| Sep 23, 2026 | 1.18 | 1.19 | 1.10 | 1.11 | 173.20K |
| Sep 22, 2026 | 1.14 | 1.19 | 1.13 | 1.14 | 639.40K |
| Sep 21, 2026 | 1.15 | 1.15 | 1.13 | 1.13 | 260.10K |
| Sep 18, 2026 | 1.11 | 1.20 | 1.09 | 1.12 | 721.10K |
About Rapid Micro Biosystems
Rapid Micro Biosystems (RPID) is listed on the Nasdaq and classified by the SEC under “Laboratory Analytical Instruments”. Its business address is in LEXINGTON, MA. State of incorporation: DE. Fiscal year ends December 31. SEC CIK 1380106.
RPID board of directors & executives
From SEC Form 3/4/5 insider filings made in the last 12 months (date = latest filing).
Directors
| Name | Role | Latest filing |
|---|---|---|
| Dafni Bika | Director | May 26, 2026 |
| Richard S Kollender | Director | Jul 24, 2026 |
| Inese Lowenstein | Director | Jun 2, 2026 |
| Kirk Malloy | Director | Jun 2, 2026 |
| Melinda Litherland Pei | Director | Jun 2, 2026 |
| Natale S Ricciardi | Director | Mar 2, 2026 |
| Robert G. Jr. Spignesi | PRESIDENT AND CEO | Jul 24, 2026 |
Executive officers
| Name | Title | Latest filing |
|---|---|---|
| Robert G. Jr. Spignesi | PRESIDENT AND CEO | Jul 24, 2026 |
| Sean M Wirtjes | CHIEF FINANCIAL OFFICER | Jun 2, 2026 |
| John J. Addington Wilson | CHIEF OPERATING OFFICER | Mar 12, 2026 |
Recent insider buys & sales
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Mar 11, 2026 | Sean M Wirtjes | Sale | 7,480 | $4.32 |
| Mar 11, 2026 | John J. Addington Wilson | Sale | 9,603 | $4.32 |
| Mar 10, 2026 | Robert G. Jr. Spignesi | Sale | 17,922 | $4.11 |
| Feb 20, 2026 | Sean M Wirtjes | Sale | 17,254 | $3.92 |
| Feb 20, 2026 | John J. Addington Wilson | Sale | 5,403 | $3.92 |
| Feb 19, 2026 | Robert G. Jr. Spignesi | Sale | 38,327 | $3.89 |
| Feb 9, 2026 | Sean M Wirtjes | Sale | 6,027 | $3.78 |
| Feb 9, 2026 | Robert G. Jr. Spignesi | Sale | 12,840 | $3.78 |
| Feb 9, 2026 | John J. Addington Wilson | Sale | 4,610 | $3.78 |
| Feb 4, 2026 | Venture Partners Ii, L.P. Longitude | Sale | 49,000 | $3.88 |
| Feb 4, 2026 | Patrick G Enright | Sale | 49,000 | $3.88 |
| Feb 4, 2026 | Bakker Juliet Tammenoms | Sale | 49,000 | $3.88 |
| Feb 4, 2026 | Prime Fund, L.P. Longitude | Sale | 49,000 | $3.88 |
| Feb 4, 2026 | Prime Partners, Llc Longitude | Sale | 49,000 | $3.88 |
| Feb 4, 2026 | Capital Partners Ii, Llc Longitude | Sale | 49,000 | $3.88 |
RPID financials (annual, from XBRL filings)
| Fiscal year end | Revenue | Net income | Diluted EPS | Operating cash flow |
|---|---|---|---|---|
| Dec 31, 2025 | $33.59M | $-47.12M | -1.05 | $-31.06M |
| Dec 31, 2024 | $28.05M | $-46.89M | -1.08 | $-44.15M |
| Dec 31, 2023 | $22.52M | $-52.47M | -1.22 | $-45.08M |
| Dec 31, 2022 | $17.13M | $-60.81M | -1.43 | $-58.55M |
| Dec 31, 2021 | $23.23M | $-73.52M | -3.94 | $-54.96M |
Latest balance sheet: total assets $58.45M, total liabilities $40.70M, cash $14.69M (as of Jun 30, 2026).
RPID earnings / results-day log
| Date | Filing | Close that day |
|---|---|---|
| Aug 7, 2026 | 8-K Item 2.02 (results) | $1.73 |
| May 13, 2026 | 8-K Item 2.02 (results) | $2.48 |
| Mar 12, 2026 | 8-K Item 2.02 (results) | $3.42 |
| Jan 13, 2026 | 8-K Item 2.02 (results) | $3.04 |
| Nov 7, 2025 | 8-K Item 2.02 (results) | $3.10 |
| Aug 12, 2025 | 8-K Item 2.02 (results) | $2.68 |
| May 9, 2025 | 8-K Item 2.02 (results) | $3.08 |
| Feb 28, 2025 | 8-K Item 2.02 (results) | $3.05 |
| Jan 14, 2025 | 8-K Item 2.02 (results) | $1.09 |
| Nov 1, 2024 | 8-K Item 2.02 (results) | $1.10 |
| Aug 2, 2024 | 8-K Item 2.02 (results) | — |
| May 3, 2024 | 8-K Item 2.02 (results) | — |
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Information only, not investment advice. BuyMeWhiskey is not a registered investment adviser or broker-dealer; nothing here is a recommendation to buy, sell or hold any security, and there are no price targets. Data comes from SEC EDGAR filings and public end-of-day market data and may be delayed or contain errors. Verify with the company's filings before making decisions. Prices: end-of-day data as of Oct 15, 2026, 4:00 PM ET. Filings: SEC EDGAR. Updated after every US trading day.