Quanterix (QTRX) Stock Analysis & Price (Updated Oct 16, 2026, 4:00 PM ET)
Updated Oct 16, 2026, 4:00 PM ET
- Closed at $2.87, -6.51% vs the prior close of $3.07.
- Volume 322.59K shares, 0.4x its 50-day average (light).
- New SEC filings: 4 (Oct 16, 2026).
- No new insider buys or sales reported since the prior session.
QTRX slides 6.5% to $2.87, a 1-month low. Closed at $2.87, -6.51% vs the prior close of $3.07. Day range $2.84–$3.07, opened at $3.07.
QTRX daily analysis — what happened
A plain-English, data-only note written after every US trading day. Newest first; older days stay archived below.
Oct 16, 2026 — QTRX slides 6.5% to $2.87, a 1-month low
- Closed at $2.87, -6.51% vs the prior close of $3.07. Day range $2.84–$3.07, opened at $3.07.
- Volume was 322.59K shares, 0.4x its 50-day average of 840.88K — lighter than usual.
- Price is -4.1% vs its 50-day average ($2.99) and -29.5% vs its 200-day average ($4.07).
- 52-week range $2.15–$8.77; today's close sits at 11% of that range, 67.3% below the 52-week high.
Oct 15, 2026 — QTRX rises 0.3% to $3.07
- Closed at $3.07, +0.33% vs the prior close of $3.06. Day range $2.92–$3.11, opened at $3.05.
- Volume was 291.10K shares, 0.3x its 50-day average of 842.75K — lighter than usual.
- Price is +1.9% vs its 50-day average ($3.01) and -24.9% vs its 200-day average ($4.09).
- 52-week range $2.15–$8.77; today's close sits at 14% of that range, 65.0% below the 52-week high.
Oct 14, 2026 — QTRX dips 2.9% to $3.06, 3 down days in a row
- Closed at $3.06, -2.86% vs the prior close of $3.15. Day range $3.05–$3.23, opened at $3.10.
- Volume was 342.30K shares, 0.4x its 50-day average of 844.94K — lighter than usual.
- Price is +1.1% vs its 50-day average ($3.03) and -25.4% vs its 200-day average ($4.10).
- 52-week range $2.15–$8.77; today's close sits at 14% of that range, 65.1% below the 52-week high.
- That makes 3 straight losses.
Oct 13, 2026 — QTRX dips 0.3% to $3.15
- Closed at $3.15, -0.32% vs the prior close of $3.16. Day range $3.11–$3.34, opened at $3.17.
- Volume was 749.90K shares, 0.9x its 50-day average of 837.62K.
- Price is +3.6% vs its 50-day average ($3.04) and -23.5% vs its 200-day average ($4.12).
- 52-week range $2.15–$8.77; today's close sits at 15% of that range, 64.1% below the 52-week high.
Oct 12, 2026 — QTRX slides 3.7% to $3.16
- Closed at $3.16, -3.66% vs the prior close of $3.28. Day range $3.07–$3.35, opened at $3.28.
- Volume was 562.80K shares, 0.7x its 50-day average of 834.65K.
- Price is +3.6% vs its 50-day average ($3.05) and -23.6% vs its 200-day average ($4.14).
- 52-week range $2.15–$8.77; today's close sits at 15% of that range, 64.0% below the 52-week high.
Oct 9, 2026 — QTRX rises 2.2% to $3.28
- Closed at $3.28, +2.18% vs the prior close of $3.21. Day range $3.20–$3.44, opened at $3.22.
- Volume was 282.60K shares, 0.3x its 50-day average of 837.14K — lighter than usual.
- Price is +7.3% vs its 50-day average ($3.06) and -21.0% vs its 200-day average ($4.15).
- 52-week range $2.15–$8.77; today's close sits at 17% of that range, 62.6% below the 52-week high.
Oct 8, 2026 — QTRX slides 3.5% to $3.21, 3 down days in a row
- Closed at $3.21, -3.46% vs the prior close of $3.33. Day range $3.06–$3.25, opened at $3.25.
- Volume was 606.10K shares, 0.7x its 50-day average of 833.66K.
- Price is +4.8% vs its 50-day average ($3.06) and -23.1% vs its 200-day average ($4.17).
- 52-week range $2.15–$8.77; today's close sits at 16% of that range, 63.4% below the 52-week high.
- That makes 3 straight losses.
Oct 7, 2026 — QTRX slides 3.3% to $3.33
- Closed at $3.33, -3.34% vs the prior close of $3.44. Day range $3.31–$3.55, opened at $3.40.
- Volume was 493.50K shares, 0.6x its 50-day average of 833.14K — lighter than usual.
- Price is +8.5% vs its 50-day average ($3.07) and -20.6% vs its 200-day average ($4.19).
- 52-week range $2.15–$8.77; today's close sits at 18% of that range, 62.1% below the 52-week high.
Oct 6, 2026 — QTRX slides 9.7% to $3.44
- Closed at $3.44, -9.71% vs the prior close of $3.81. Day range $3.42–$3.98, opened at $3.83.
- Volume was 606.40K shares, 0.7x its 50-day average of 827.75K.
- Price is +12.1% vs its 50-day average ($3.07) and -18.2% vs its 200-day average ($4.21).
- 52-week range $2.15–$8.77; today's close sits at 19% of that range, 60.8% below the 52-week high.
Oct 5, 2026 — QTRX jumps 4.7% to $3.81, a 1-month high
- Closed at $3.81, +4.67% vs the prior close of $3.64. Day range $3.62–$3.90, opened at $3.66.
- Volume was 1.03M shares, 1.3x its 50-day average of 815.58K.
- Price is +24.0% vs its 50-day average ($3.07) and -9.8% vs its 200-day average ($4.22).
- 52-week range $2.15–$8.77; today's close sits at 25% of that range, 56.6% below the 52-week high.
Oct 2, 2026 — QTRX jumps 6.7% to $3.64
- Closed at $3.64, +6.74% vs the prior close of $3.41. Day range $3.44–$3.69, opened at $3.44.
- Volume was 590.80K shares, 0.7x its 50-day average of 812.13K.
- Price is +18.6% vs its 50-day average ($3.07) and -14.2% vs its 200-day average ($4.24).
- 52-week range $2.15–$8.77; today's close sits at 23% of that range, 58.5% below the 52-week high.
QTRX latest news & SEC filings
Every SEC filing by or about QTRX in the last 120 days, explained in plain English. Updated daily, with a same-day refresh for new filings.
Oct 16, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Miller Michael Francis converted options/RSUs into 81 shares on Oct 15, 2026; now holds 38,533
- Miller Michael Francis had withheld for taxes 25 shares at $3.07 (≈$77) on Oct 15, 2026; now holds 38,508
- Miller Michael Francis converted options/RSUs into 136 shares on Oct 15, 2026; now holds 38,644
- Miller Michael Francis had withheld for taxes 41 shares at $3.07 (≈$126) on Oct 15, 2026; now holds 38,603
- Miller Michael Francis converted options/RSUs into 135 shares on Oct 15, 2026; now holds 38,738
- Miller Michael Francis had withheld for taxes 41 shares at $3.07 (≈$126) on Oct 15, 2026; now holds 38,697
- …plus 4 more transaction lines in the filing.
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Oct 2, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Magovcevic-Liebisch Ivana converted options/RSUs into 4,224 shares on Oct 2, 2026; now holds 15,883
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Oct 2, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Mendel Scott received an award of 4,398 shares at $3.41 (≈$15.00K) on Oct 1, 2026; now holds 28,454
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Oct 2, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Donnelly William P received an award of 6,964 shares at $3.41 (≈$23.75K) on Oct 1, 2026; now holds 169,365
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Sep 17, 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).
Sep 16, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Miller Michael Francis converted options/RSUs into 81 shares on Sep 15, 2026; now holds 37,442
- Miller Michael Francis had withheld for taxes 25 shares at $2.72 (≈$68) on Sep 15, 2026; now holds 37,417
- Miller Michael Francis converted options/RSUs into 136 shares on Sep 15, 2026; now holds 37,553
- Miller Michael Francis had withheld for taxes 41 shares at $2.72 (≈$112) on Sep 15, 2026; now holds 37,512
- Miller Michael Francis converted options/RSUs into 135 shares on Sep 15, 2026; now holds 37,647
- Miller Michael Francis had withheld for taxes 41 shares at $2.72 (≈$112) on Sep 15, 2026; now holds 37,606
- …plus 4 more transaction lines in the filing.
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Sep 11, 2026 · Form S-8 — Employee share plan registration
Registration of shares for employee stock plans (S-8)
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 10, 2026 · Form 10-Q — Quarterly report
Quarterly report (unaudited financial statements for the quarter)
Quarter ended Jun 30, 2026:
- Revenue: $32.91M (prior year $24.48M) (+34.4% vs Jun 30, 2025)
- Net income: -$48.93M (prior year -$30.01M) (loss widened vs Jun 30, 2025)
- Diluted EPS: -$1.04 (prior year -$0.77) (loss widened vs Jun 30, 2025)
Aug 10, 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).
- Item 7.01 — Released information under Regulation FD (e.g. a presentation or press release).
This is a results-day filing: the earnings press release is attached as an exhibit.
Aug 6, 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.
Things to know before you trade QTRX
- Last results release: Aug 10, 2026 (8-K Item 2.02). Previous ones: May 6, 2026, Mar 2, 2026, Jan 8, 2026. Based on that rhythm, the next report is likely around Nov 9, 2026 — an estimate, not a confirmed date.
- How much it moves: over the last 20 sessions the average daily move was 3.76% (largest 9.7%). That is a volatile stock.
- Liquidity: about 556.82K shares (≈$1.60M) trade per day on average. Thin volume can mean wider bid/ask spreads.
- 52-week position: $2.87 vs a range of $2.15–$8.77 (11% 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): 12 open-market buys, 0 sales; latest: William P Donnelly bought 72,245 shares on Aug 13, 2026.
- Latest filings: 10-Q Aug 10, 2026; 8-K Aug 10, 2026; 8-K Jun 10, 2026.
- Share count: 47.29M shares outstanding (Aug 3, 2026), +1.8% vs a year earlier.
- Listing: Nasdaq · industry: Laboratory Analytical Instruments.
QTRX market data (last 20 sessions)
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| Oct 16, 2026 | 3.07 | 3.07 | 2.84 | 2.87 | 322.59K |
| Oct 15, 2026 | 3.05 | 3.11 | 2.92 | 3.07 | 291.10K |
| Oct 14, 2026 | 3.10 | 3.23 | 3.05 | 3.06 | 342.30K |
| Oct 13, 2026 | 3.17 | 3.34 | 3.11 | 3.15 | 749.90K |
| Oct 12, 2026 | 3.28 | 3.35 | 3.07 | 3.16 | 562.80K |
| Oct 9, 2026 | 3.22 | 3.44 | 3.20 | 3.28 | 282.60K |
| Oct 8, 2026 | 3.25 | 3.25 | 3.06 | 3.21 | 606.10K |
| Oct 7, 2026 | 3.40 | 3.55 | 3.31 | 3.33 | 493.50K |
| Oct 6, 2026 | 3.83 | 3.98 | 3.42 | 3.44 | 606.40K |
| Oct 5, 2026 | 3.66 | 3.90 | 3.62 | 3.81 | 1.03M |
| Oct 2, 2026 | 3.44 | 3.69 | 3.44 | 3.64 | 590.80K |
| Oct 1, 2026 | 3.72 | 3.72 | 3.38 | 3.41 | 629.20K |
| Sep 30, 2026 | 3.67 | 3.72 | 3.59 | 3.71 | 545.30K |
| Sep 29, 2026 | 3.52 | 3.71 | 3.45 | 3.67 | 623.40K |
| Sep 28, 2026 | 3.25 | 3.67 | 3.23 | 3.52 | 1.04M |
| Sep 25, 2026 | 3.23 | 3.29 | 3.11 | 3.27 | 563.50K |
| Sep 24, 2026 | 3.15 | 3.22 | 3.04 | 3.18 | 374.20K |
| Sep 23, 2026 | 3.17 | 3.20 | 3.03 | 3.16 | 423.70K |
| Sep 22, 2026 | 3.05 | 3.21 | 3.03 | 3.19 | 424.90K |
| Sep 21, 2026 | 3.13 | 3.17 | 3.01 | 3.04 | 627.40K |
About Quanterix
Quanterix (QTRX) is listed on the Nasdaq and classified by the SEC under “Laboratory Analytical Instruments”. Its business address is in BILLERICA, MA. State of incorporation: DE. Fiscal year ends December 31. SEC CIK 1503274.
QTRX 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 |
|---|---|---|
| Everett Cunningham | President and CEO | Jan 21, 2026 |
| William P Donnelly | Director | Aug 19, 2026 |
| Jeffrey Thomas Elliott | Director | Aug 20, 2026 |
| Karen Flynn | Director | Jan 6, 2026 |
| Malcolm Garret Hampton | Director | Jan 6, 2026 |
| Goldman Myla Lai | Director | Jul 9, 2026 |
| Paul M Meister | Director | Jan 15, 2026 |
| Ivana Magovcevic-Liebisch | Director | Jan 15, 2026 |
| Scott Mendel | Director | Jul 9, 2026 |
| Alan Bruce Sachs | Director | Jan 6, 2026 |
| Masoud Toloue | President & CEO | Jan 20, 2026 |
| David R Walt | Director | Jan 6, 2026 |
Executive officers
| Name | Title | Latest filing |
|---|---|---|
| Daniel Char | Chief Legal Officer | Mar 24, 2026 |
| Everett Cunningham | President and CEO | Jan 21, 2026 |
| Jason F. Faessler | Chief Financial Officer | Jul 16, 2026 |
| James Edward Jr. Gute | Chief Commercial Officer | Sep 17, 2026 |
| Benjamin Meadows | Chief Commercial Officer | Jun 12, 2026 |
| Michael Francis Miller | Chief Technology Officer | Sep 16, 2026 |
| Vandana Sriram | Chief Financial Officer | Jun 23, 2026 |
| Masoud Toloue | President & CEO | Jan 20, 2026 |
Recent insider buys & sales
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Aug 13, 2026 | William P Donnelly | Buy | 72,245 | $2.93 |
| Aug 13, 2026 | William P Donnelly | Buy | 72,245 | $2.93 |
| Aug 13, 2026 | William P Donnelly | Buy | 72,245 | $2.93 |
| Aug 13, 2026 | William P Donnelly | Buy | 72,245 | $2.93 |
| Aug 12, 2026 | William P Donnelly | Buy | 27,155 | $2.75 |
| Aug 12, 2026 | William P Donnelly | Buy | 27,155 | $2.75 |
| Aug 12, 2026 | William P Donnelly | Buy | 27,155 | $2.75 |
| Aug 12, 2026 | William P Donnelly | Buy | 27,155 | $2.75 |
| May 12, 2026 | Benjamin Meadows | Buy | 3,500 | $2.77 |
| May 12, 2026 | Benjamin Meadows | Buy | 3,500 | $2.77 |
| May 12, 2026 | Benjamin Meadows | Buy | 3,500 | $2.77 |
| May 12, 2026 | Benjamin Meadows | Buy | 3,500 | $2.77 |
QTRX financials (annual, from XBRL filings)
| Fiscal year end | Revenue | Net income | Diluted EPS | Operating cash flow |
|---|---|---|---|---|
| Dec 31, 2025 | $138.90M | $-107.15M | -2.51 | $-77.24M |
| Dec 31, 2024 | $137.42M | $-38.53M | -1.00 | $-35.16M |
| Dec 31, 2023 | $122.37M | $-28.35M | -0.75 | $-18.85M |
| Dec 31, 2022 | $105.52M | $-99.57M | -2.69 | $-48.61M |
| Dec 31, 2021 | $110.56M | $-57.69M | -1.60 | $-47.91M |
Latest balance sheet: total assets $319.63M, total liabilities $82.42M, cash $44.17M (as of Jun 30, 2026).
QTRX earnings / results-day log
| Date | Filing | Close that day |
|---|---|---|
| Aug 10, 2026 | 8-K Item 2.02 (results) | $2.42 |
| May 6, 2026 | 8-K Item 2.02 (results) | $3.29 |
| Mar 2, 2026 | 8-K Item 2.02 (results) | $6.33 |
| Jan 8, 2026 | 8-K Item 2.02 (results) | $6.51 |
| Nov 10, 2025 | 8-K Item 2.02 (results) | $5.12 |
| Aug 7, 2025 | 8-K Item 2.02 (results) | $5.51 |
| May 12, 2025 | 8-K Item 2.02 (results) | $5.73 |
| Mar 17, 2025 | 8-K Item 2.02 (results) | $7.28 |
| Jan 14, 2025 | 8-K Item 2.02 (results) | $8.57 |
| Jan 10, 2025 | 8-K Item 2.02 (results) | $9.42 |
| Nov 12, 2024 | 8-K Item 2.02 (results) | $15.17 |
| Aug 8, 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 16, 2026, 4:00 PM ET. Filings: SEC EDGAR. Updated after every US trading day.