908 Devices Inc. Common Stock
MASS Real Time Price USDRecent trades of MASS by members of U.S. Congress
| Politician | Type | Traded |
|---|---|---|
| Ro Khanna House / D | Purchase $1,001 - $15,000 | N/A |
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Recently reported changes in MASS holdings by institutional investors
Quarterly net insider trading by MASS's directors and management
* Insider trading data parsed from SEC Form 4 filings by Quiver Quantitative. Sign up for the Quiver API for real-time access.
- 1M
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- 6M
- YTD
- 1Y
- 2Y
- 5Y
- MAX
About
Key Metrics
Return (1d)
Return (30d)
Return (1Y)
CAGR (Total)
Max Drawdown
Beta
Alpha
Sharpe Ratio
Win Rate
Average Win
Average Loss
Annual Volatility
Annual Std Dev
Information Ratio
Treynor Ratio
Total Trades
Metrics Definitions
Disclaimer: The performance results shown are based on historical backtesting and are hypothetical in nature. Backtested performance does not represent actual trading and does not account for all market factors that may affect execution, such as liquidity, slippage, and changing market conditions. Past performance is not necessarily indicative of future results. There is no guarantee that any trading strategy will be profitable or avoid losses.
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Alpha
Measures a portfolio's risk-adjusted performance against that of its benchmark
Learn More about Alpha -
Annual Standard Deviation
Measures how much the portfolio's total return varies from its mean or average.
Learn More about Annual Standard Deviation -
Annual Volatility
A statistical measure of the dispersion of returns for the portfolio.
Learn More about Annual Volatility -
Average Win
The average return (%) for trades that resulted in a positive return.
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Average Loss
The average return (%) for trades that resulted in a negative return.
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Beta
A measure of the volatility of the portfolio compared to the market as a whole.
Learn More about Beta -
CAGR
CAGR (Compounded Annual Growth Rate), is the historical annualized rate of return for an investment strategy, throughout the backtest period.
Learn More about CAGR -
Information Ratio
A measurement of portfolio returns beyond the returns of its benchmark compared to the volatility of those returns.
Learn More about Information Ratio -
Max Drawdown
the maximum observed loss from a peak to a trough of a portfolio, before a new peak is attained.
Learn More about Max Drawdown -
Sharpe Ratio
The Sharpe Ratio is a measure of historical risk-adjusted return, which quantifies the amount of return that an investor received per unit of risk.
Learn More about Sharpe Ratio -
Total Trades
The total number of trades made by this strategy.
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Treynor Ratio
Attempts to measure how successful an investment is in providing compensation to investors for taking on investment risk.
Learn More about Treynor Ratio -
Win Rate
The percentage of total trades that resulted in a positive return.
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Government lobbying spending instances
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$50,000 Jul 27, 2026 Issue: Budget/Appropriations Homeland Security Law Enforcement/Crime/Criminal Justice Defense
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$22,500 Jul 13, 2026 Issue: Budget/Appropriations Homeland Security Defense Law Enforcement/Crime/Criminal Justice
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$22,500 Apr 22, 2026 Issue: Budget/Appropriations Homeland Security Defense Law Enforcement/Crime/Criminal Justice
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$50,000 Apr 15, 2026 Issue: Budget/Appropriations Homeland Security Law Enforcement/Crime/Criminal Justice Defense
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$22,500 Jan 27, 2026 Issue: Budget/Appropriations Homeland Security Defense Law Enforcement/Crime/Criminal Justice
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$50,000 Jan 07, 2026 Issue: Budget/Appropriations Homeland Security Law Enforcement/Crime/Criminal Justice Defense
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$22,500 Oct 21, 2025 Issue: Budget/Appropriations Homeland Security Defense Law Enforcement/Crime/Criminal Justice
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$50,000 Oct 08, 2025 Issue: Budget/Appropriations Homeland Security Law Enforcement/Crime/Criminal Justice Defense
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$22,500 Jul 22, 2025 Issue: Budget/Appropriations Homeland Security Defense Law Enforcement/Crime/Criminal Justice
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$50,000 Jul 06, 2025 Issue: Budget/Appropriations Homeland Security Law Enforcement/Crime/Criminal Justice Defense
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$22,500 Apr 22, 2025 Issue: Budget/Appropriations
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$50,000 Apr 01, 2025 Issue: Budget/Appropriations Homeland Security Law Enforcement/Crime/Criminal Justice Defense
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$22,500 Jan 21, 2025 Issue: Budget/Appropriations Defense
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$50,000 Jan 16, 2025 Issue: Budget/Appropriations Homeland Security Law Enforcement/Crime/Criminal Justice Defense
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$50,000 Nov 05, 2024 Issue: Defense Law Enforcement/Crime/Criminal Justice Homeland Security Budget/Appropriations
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$22,500 Oct 21, 2024 Issue: Defense Budget/Appropriations
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$20,000 Jul 22, 2024 Issue: Budget/Appropriations
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$40,000 Jul 14, 2024 Issue: Defense Law Enforcement/Crime/Criminal Justice Homeland Security Budget/Appropriations
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$20,000 Jan 22, 2024 Issue: Budget/Appropriations
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$20,000 Oct 19, 2023 Issue: Budget/Appropriations
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$30,000 Sep 30, 2023 Issue: Defense Law Enforcement/Crime/Criminal Justice Homeland Security Budget/Appropriations
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$20,000 Jul 20, 2023 Issue: Budget/Appropriations
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$30,000 Jul 08, 2023 Issue: Defense Law Enforcement/Crime/Criminal Justice Homeland Security Budget/Appropriations
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$20,000 Jan 19, 2023 Issue: Budget/Appropriations
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$30,000 Jan 04, 2023 Issue: Defense Law Enforcement/Crime/Criminal Justice Homeland Security Budget/Appropriations
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$20,000 Oct 18, 2022 Issue: Budget/Appropriations
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$30,000 Oct 13, 2022 Issue: Defense Law Enforcement/Crime/Criminal Justice Homeland Security Budget/Appropriations
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$20,000 Jul 20, 2022 Issue: Budget/Appropriations
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$30,000 Jul 16, 2022 Issue: Defense Law Enforcement/Crime/Criminal Justice Homeland Security Budget/Appropriations
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$20,000 Apr 19, 2022 Issue: Budget/Appropriations
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$30,000 Apr 19, 2022 Issue: Budget/Appropriations Homeland Security Law Enforcement/Crime/Criminal Justice
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$20,000 Jan 20, 2022 Issue: Budget/Appropriations
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$30,000 Jan 19, 2022 Issue: Budget/Appropriations Homeland Security Law Enforcement/Crime/Criminal Justice
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$10,000 Oct 20, 2021 Issue: Budget/Appropriations
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$10,000 Oct 20, 2021 Issue: Budget/Appropriations
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$30,000 Jul 19, 2019 Issue: Defense Homeland Security Law Enforcement/Crime/Criminal Justice
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$20,000 Apr 19, 2019 Issue: Defense Homeland Security Law Enforcement/Crime/Criminal Justice
Former government officials who have lobbied for MASS
2 former government officials from 2 congressional offices at 2 lobbying firms have lobbied for MASS, most recently Jul 13, 2026.
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Brendan Neal Senate Senator John Kerry, Massachusetts Regional Director. -
Jennifer Cave Senate Legislative Aide, Senator John Warner; Special Assistant, National Security Council; Special Assistant, Senate Armed Services Committee; Staff Assistant, Senator John Warner and Intern, Senator John Warner
MASS Estimated quarterly lobbying spending
MASS Revenue by Segment or Geography
New MASS patent grants
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Patent Title: Mass spectrometry by detecting positively and negatively charged particles Nov. 15, 2022
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Patent Title: Fluidic cartridge assembly Sep. 28, 2021
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Patent Title: Integrated mass spectrometry systems Oct. 08, 2019
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Patent Title: Microfluidic analysis of biological samples Feb. 19, 2019
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Patent Title: High pressure mass spectrometry systems and methods Feb. 12, 2019
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Patent Title: Sample collection in compact mass spectrometry systems May. 22, 2018
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Patent Title: Mass spectrometry by detecting positively and negatively charged particles Feb. 27, 2018
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Patent Title: Integrated mass spectrometry systems Jul. 04, 2017
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Patent Title: Sample collection in compact mass spectrometry systems Nov. 22, 2016
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Patent Title: Compact mass spectrometer Aug. 04, 2015
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Patent Title: High pressure mass spectrometry systems and methods Jul. 28, 2015
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Patent Title: High pressure mass spectrometry systems and methods Apr. 14, 2015
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Patent Title: High pressure mass spectrometry systems and methods Dec. 30, 2014
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Patent Title: High pressure mass spectrometry systems and methods Aug. 26, 2014
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Patent Title: Sensor device Apr. 22, 2014
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Patent Title: Handheld sensor Apr. 22, 2014
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Patent Title: High pressure mass spectrometry systems and methods Sep. 03, 2013
Federal grants, loans, and purchases
- $3,610 2026-08-06 00:00:00 Agency: Department of Homeland Security
- $7,600 2026-04-23 00:00:00 Agency: Department of Justice
- $7,600 2025-09-19 00:00:00 Agency: Department of Justice
- $2,875 2025-09-12 00:00:00 Agency: Department of Justice
- $4,150 2025-08-18 00:00:00 Agency: Department of Justice
- $7,600 2025-08-15 00:00:00 Agency: Department of Justice
- $7,600 2025-05-16 00:00:00 Agency: Department of Justice
- $7,600 2025-04-29 00:00:00 Agency: Department of Justice
- $48,379 2024-06-28 00:00:00 Agency: Department of Health and Human Services
- $7,450 2024-06-17 00:00:00 Agency: Department of Justice
- $7,450 2024-06-05 00:00:00 Agency: Department of Justice
- $4,000 2024-04-16 00:00:00 Agency: Department of Justice
- $7,450 2024-04-08 00:00:00 Agency: Department of Justice
- $6,850 2023-09-25 00:00:00 Agency: Department of Justice
- $20,550 2023-09-22 00:00:00 Agency: Department of Homeland Security
- $75,704 2023-09-08 00:00:00 Agency: Department of Homeland Security
- $6,850 2023-08-18 00:00:00 Agency: Department of State
- $10,800 2023-05-19 00:00:00 Agency: Department of Justice
- $75,547 2023-05-17 00:00:00 Agency: Department of Homeland Security
- $44,496 2023-04-05 00:00:00 Agency: Department of Health and Human Services
- $6,650 2022-04-22 00:00:00 Agency: DEPARTMENT OF JUSTICE (DOJ)
Estimated quarterly amount awarded to MASS from public contracts
Recent insights relating to MASS
Recent picks made for MASS stock on CNBC
ETFs with the largest estimated holdings in MASS
- ... Highest Price Target
- ... Median Price Target
- ... Lowest Price Target
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Current
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Previous
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- Is $MASS stock a Buy, Sell, or Hold?
- What is the price target for $MASS stock?
* Analyst consensus is not financial advice. Please see our data disclaimers .
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Shareholder
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Shares Held
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- Who owns $MASS stock?
- Who owns the most shares of $MASS stock?
- What funds own $MASS stock?
* These are estimates based on data taken from SEC filings. There may be inaccuracies due to parsing errors, accidental double-counting, incorrect classification of indirectly owned shares, or any other number of issues.
The Quiver Smart Score combines our data on Congress Trading, Lobbying, Insider Trading, CNBC Mentions and more to provide a comprehensive view of the strength of a stock's underlying data.
The Smart Score grades stocks on a scale of 1 (weakest) to 10 (strongest) based on the strength of the underlying data.Sign Up to view MASS Smart Score
See concise summaries of analyst reports, presenting both bullish and bearish arguments for a stock.
Example:
The Bulls Say summary highlights positive aspects of the stock.
The Bears Say summary points out potential risks and negative aspects of the stock.
908 Devices Inc develops a suite of purpose-built handheld devices for point-of-need chemical analysis. Leveraging mass spectrometry, optical spectroscopy, analytics and machine learning technologies, the company makes devices that are smaller and more accessible than conventional laboratory instruments. Its devices, including MX908, ThreatID, XplorIR and VipIR, are used to analyze unknown materials and provide actionable answers in health, safety and defense technology applications, addressing the fentanyl and illicit drug crisis, toxic carcinogen exposure and security threats. The company reimagines mass spectrometry technology by developing smaller, lower-cost and simpler-to-operate devices compared to conventional instruments, and generates maximum revenue from the United States.
- Address Burlington, MA
- Market Cap 452.2 million
- Employees 172
- Industrial Classification Laboratory Analytical Instruments
908 Devices Inc. Common Stock (MASS) Historical Stock Prices
908 Devices Inc. Common Stock (MASS) closed at $10.94 on September 23, 2026. Over the past year its adjusted close ranged from $5.09 to $11.18. Daily prices go back to December 18, 2020, 1,446 trading days in all.
- 1 month+0.18%
- 3 months+21.96%
- Year to date+108.38%
- 1 year+44.90%
- 3 years+81.13%
- 5 years-69.93%
- Max-77.67%
Quiver Premium charts MASS's full daily history since 2014 with each congressional purchase and sale and every open-market insider purchase marked on the price line, with hover details for each trade.
Upgrade to Premium| Date | Open | High | Low | Close | Adj. Close | Volume |
|---|---|---|---|---|---|---|
| Sep 23, 2026 | 11.05 | 11.25 | 10.84 | 10.94 | 10.94 | 243,098 |
| Sep 22, 2026 | 10.88 | 11.19 | 10.68 | 11.18 | 11.18 | 475,128 |
| Sep 21, 2026 | 10.70 | 11.05 | 10.52 | 10.88 | 10.88 | 343,697 |
| Sep 18, 2026 | 10.79 | 10.98 | 10.26 | 10.53 | 10.53 | 854,920 |
| Sep 17, 2026 | 10.15 | 11.22 | 10.15 | 10.98 | 10.98 | 689,792 |
| Sep 16, 2026 | 10.12 | 10.35 | 9.77 | 9.92 | 9.92 | 285,720 |
| Sep 15, 2026 | 9.67 | 10.00 | 9.66 | 9.97 | 9.97 | 249,376 |
| Sep 14, 2026 | 9.38 | 9.89 | 9.33 | 9.73 | 9.73 | 252,695 |
| Sep 11, 2026 | 9.49 | 9.73 | 9.44 | 9.52 | 9.52 | 279,726 |
| Sep 10, 2026 | 9.77 | 9.87 | 9.32 | 9.35 | 9.35 | 309,328 |
| Sep 9, 2026 | 9.68 | 9.70 | 9.55 | 9.69 | 9.69 | 235,370 |
| Sep 8, 2026 | 9.91 | 10.00 | 9.70 | 9.81 | 9.81 | 241,820 |
| Sep 4, 2026 | 10.02 | 10.12 | 9.87 | 10.05 | 10.05 | 201,068 |
| Sep 3, 2026 | 10.39 | 10.53 | 9.79 | 10.04 | 10.04 | 307,311 |
| Sep 2, 2026 | 10.70 | 11.00 | 10.30 | 10.33 | 10.33 | 535,612 |
| Sep 1, 2026 | 10.56 | 10.88 | 10.50 | 10.65 | 10.65 | 380,582 |
| Aug 31, 2026 | 10.73 | 10.80 | 10.49 | 10.67 | 10.67 | 246,215 |
| Aug 28, 2026 | 11.01 | 11.05 | 10.50 | 10.73 | 10.73 | 557,104 |
| Aug 27, 2026 | 10.40 | 11.10 | 10.40 | 11.10 | 11.10 | 503,196 |
| Aug 26, 2026 | 10.96 | 11.02 | 10.31 | 10.37 | 10.37 | 461,183 |
| Aug 25, 2026 | 11.03 | 11.05 | 10.56 | 11.00 | 11.00 | 444,144 |
| Aug 24, 2026 | 11.00 | 11.25 | 10.80 | 10.92 | 10.92 | 724,074 |
| Aug 21, 2026 | 10.41 | 10.69 | 10.15 | 10.68 | 10.68 | 528,311 |
| Aug 20, 2026 | 10.05 | 10.70 | 9.91 | 10.35 | 10.35 | 700,464 |
| Aug 19, 2026 | 10.25 | 10.48 | 9.97 | 10.24 | 10.24 | 655,822 |
| Aug 18, 2026 | 9.95 | 10.12 | 9.73 | 10.08 | 10.08 | 355,880 |
| Aug 17, 2026 | 10.22 | 10.49 | 10.02 | 10.19 | 10.19 | 465,014 |
| Aug 14, 2026 | 10.26 | 10.40 | 9.97 | 10.01 | 10.01 | 645,550 |
| Aug 13, 2026 | 10.05 | 10.39 | 9.90 | 10.11 | 10.11 | 519,067 |
| Aug 12, 2026 | 10.15 | 10.52 | 9.30 | 10.02 | 10.02 | 858,415 |
| Aug 11, 2026 | 9.07 | 10.34 | 8.79 | 10.01 | 10.01 | 1,620,156 |
| Aug 10, 2026 | 8.80 | 9.08 | 8.64 | 8.80 | 8.80 | 350,058 |
| Aug 7, 2026 | 8.37 | 8.88 | 8.30 | 8.88 | 8.88 | 322,948 |
| Aug 6, 2026 | 8.35 | 8.49 | 8.25 | 8.30 | 8.30 | 243,148 |
| Aug 5, 2026 | 8.46 | 8.61 | 8.26 | 8.41 | 8.41 | 248,889 |
| Aug 4, 2026 | 8.54 | 8.84 | 8.26 | 8.45 | 8.45 | 443,157 |
| Aug 3, 2026 | 8.02 | 8.55 | 7.95 | 8.42 | 8.42 | 331,821 |
| Jul 31, 2026 | 7.56 | 8.01 | 7.53 | 8.01 | 8.01 | 335,294 |
| Jul 30, 2026 | 7.76 | 7.87 | 7.50 | 7.64 | 7.64 | 299,342 |
| Jul 29, 2026 | 7.33 | 7.92 | 7.21 | 7.60 | 7.60 | 758,008 |
| Jul 28, 2026 | 7.13 | 7.24 | 6.90 | 7.03 | 7.03 | 146,009 |
| Jul 27, 2026 | 7.42 | 7.46 | 6.95 | 7.13 | 7.13 | 229,306 |
| Jul 24, 2026 | 7.17 | 7.23 | 6.95 | 7.14 | 7.14 | 348,844 |
| Jul 23, 2026 | 7.07 | 7.40 | 7.01 | 7.11 | 7.11 | 252,986 |
| Jul 22, 2026 | 7.38 | 7.70 | 7.22 | 7.24 | 7.24 | 231,126 |
| Jul 21, 2026 | 7.11 | 7.36 | 7.01 | 7.35 | 7.35 | 313,669 |
| Jul 20, 2026 | 7.34 | 7.41 | 6.96 | 7.03 | 7.03 | 261,810 |
| Jul 17, 2026 | 7.23 | 7.48 | 7.04 | 7.35 | 7.35 | 270,388 |
| Jul 16, 2026 | 7.98 | 8.03 | 7.21 | 7.41 | 7.41 | 280,154 |
| Jul 15, 2026 | 8.16 | 8.35 | 8.01 | 8.05 | 8.05 | 205,397 |
| Jul 14, 2026 | 8.12 | 8.25 | 7.88 | 8.16 | 8.16 | 248,738 |
| Jul 13, 2026 | 7.97 | 8.06 | 7.81 | 7.95 | 7.95 | 122,151 |
| Jul 10, 2026 | 8.09 | 8.21 | 7.96 | 8.10 | 8.10 | 169,358 |
| Jul 9, 2026 | 7.90 | 8.69 | 7.85 | 8.13 | 8.13 | 172,663 |
| Jul 8, 2026 | 8.17 | 8.17 | 7.67 | 7.88 | 7.88 | 307,791 |
| Jul 7, 2026 | 8.31 | 8.41 | 7.98 | 8.07 | 8.07 | 296,069 |
| Jul 6, 2026 | 8.71 | 8.87 | 8.40 | 8.42 | 8.42 | 218,967 |
| Jul 2, 2026 | 8.93 | 9.13 | 8.64 | 8.69 | 8.69 | 190,180 |
| Jul 1, 2026 | 8.64 | 8.96 | 8.56 | 8.88 | 8.88 | 254,080 |
| Jun 30, 2026 | 8.86 | 8.97 | 8.66 | 8.70 | 8.70 | 209,215 |
| Jun 29, 2026 | 8.74 | 8.97 | 8.48 | 8.81 | 8.81 | 241,930 |
| Jun 26, 2026 | 8.80 | 9.22 | 8.72 | 8.78 | 8.78 | 1,226,831 |
| Jun 25, 2026 | 9.05 | 9.20 | 8.87 | 8.98 | 8.98 | 398,836 |
| Jun 24, 2026 | 8.56 | 9.27 | 8.56 | 8.97 | 8.97 | 371,949 |
| Jun 23, 2026 | 8.53 | 9.08 | 8.48 | 8.73 | 8.73 | 255,362 |
| Jun 22, 2026 | 8.92 | 8.99 | 8.56 | 8.66 | 8.66 | 340,740 |
| Jun 18, 2026 | 8.76 | 8.92 | 8.21 | 8.85 | 8.85 | 1,063,676 |
| Jun 17, 2026 | 8.62 | 8.85 | 8.49 | 8.58 | 8.58 | 208,828 |
| Jun 16, 2026 | 8.63 | 8.85 | 8.59 | 8.64 | 8.64 | 175,656 |
| Jun 15, 2026 | 8.62 | 8.80 | 8.46 | 8.62 | 8.62 | 159,415 |
| Jun 12, 2026 | 8.25 | 8.43 | 8.18 | 8.27 | 8.27 | 172,331 |
| Jun 11, 2026 | 8.32 | 8.39 | 7.97 | 8.22 | 8.22 | 179,918 |
| Jun 10, 2026 | 7.92 | 8.23 | 7.85 | 8.01 | 8.01 | 160,139 |
| Jun 9, 2026 | 8.17 | 8.37 | 7.59 | 7.99 | 7.99 | 215,530 |
| Jun 8, 2026 | 8.14 | 8.37 | 8.05 | 8.10 | 8.10 | 139,105 |
| Jun 5, 2026 | 8.59 | 8.65 | 7.85 | 7.93 | 7.93 | 242,171 |
| Jun 4, 2026 | 8.62 | 9.00 | 8.61 | 8.82 | 8.82 | 357,432 |
| Jun 3, 2026 | 8.83 | 8.87 | 8.61 | 8.66 | 8.66 | 283,868 |
| Jun 2, 2026 | 8.71 | 8.95 | 8.55 | 8.85 | 8.85 | 301,709 |
| Jun 1, 2026 | 8.25 | 8.68 | 7.96 | 8.63 | 8.63 | 384,588 |
| May 29, 2026 | 9.00 | 9.00 | 8.36 | 8.41 | 8.41 | 337,094 |
| May 28, 2026 | 8.21 | 9.03 | 8.13 | 8.93 | 8.93 | 642,325 |
| May 27, 2026 | 8.01 | 8.31 | 7.99 | 8.16 | 8.16 | 292,556 |
| May 26, 2026 | 7.35 | 7.94 | 7.35 | 7.92 | 7.92 | 272,672 |
| May 22, 2026 | 7.21 | 7.47 | 7.21 | 7.28 | 7.28 | 182,256 |
| May 21, 2026 | 6.92 | 7.17 | 6.86 | 7.12 | 7.12 | 187,338 |
| May 20, 2026 | 6.81 | 7.15 | 6.79 | 6.98 | 6.98 | 201,874 |
| May 19, 2026 | 6.55 | 6.80 | 6.51 | 6.78 | 6.78 | 235,089 |
| May 18, 2026 | 6.95 | 7.10 | 6.63 | 6.64 | 6.64 | 181,093 |
| May 15, 2026 | 7.39 | 7.39 | 6.87 | 6.90 | 6.90 | 258,985 |
| May 14, 2026 | 7.53 | 7.78 | 7.26 | 7.30 | 7.30 | 151,422 |
| May 13, 2026 | 7.38 | 7.91 | 7.38 | 7.54 | 7.54 | 178,373 |
| May 12, 2026 | 7.76 | 7.86 | 7.62 | 7.65 | 7.65 | 210,671 |
| May 11, 2026 | 8.12 | 8.36 | 7.86 | 7.93 | 7.93 | 214,118 |
| May 8, 2026 | 8.07 | 8.20 | 7.78 | 8.17 | 8.17 | 416,198 |
| May 7, 2026 | 8.08 | 8.22 | 7.93 | 8.08 | 8.08 | 543,613 |
| May 6, 2026 | 7.59 | 8.20 | 6.51 | 8.06 | 8.06 | 630,440 |
| May 5, 2026 | 6.62 | 7.12 | 6.54 | 7.09 | 7.09 | 451,697 |
| May 4, 2026 | 6.77 | 6.93 | 6.54 | 6.55 | 6.55 | 252,438 |
| May 1, 2026 | 6.86 | 7.03 | 6.76 | 6.81 | 6.81 | 213,781 |
| Apr 30, 2026 | 6.52 | 6.87 | 6.45 | 6.83 | 6.83 | 193,974 |
| Apr 29, 2026 | 6.74 | 6.82 | 6.46 | 6.50 | 6.50 | 403,812 |
| Apr 28, 2026 | 6.67 | 6.78 | 6.60 | 6.74 | 6.74 | 196,556 |
| Apr 27, 2026 | 6.73 | 6.93 | 6.66 | 6.74 | 6.74 | 133,324 |
| Apr 24, 2026 | 6.80 | 7.06 | 6.68 | 6.74 | 6.74 | 127,223 |
| Apr 23, 2026 | 7.14 | 7.14 | 6.60 | 6.76 | 6.76 | 209,326 |
| Apr 22, 2026 | 7.31 | 7.47 | 7.11 | 7.13 | 7.13 | 226,195 |
| Apr 21, 2026 | 7.17 | 7.54 | 7.17 | 7.26 | 7.26 | 286,425 |
| Apr 20, 2026 | 7.09 | 7.47 | 7.03 | 7.30 | 7.30 | 264,519 |
| Apr 17, 2026 | 7.54 | 7.54 | 7.16 | 7.16 | 7.16 | 317,499 |
| Apr 16, 2026 | 7.36 | 7.43 | 7.11 | 7.42 | 7.42 | 187,821 |
| Apr 15, 2026 | 7.33 | 7.49 | 7.24 | 7.37 | 7.37 | 182,936 |
| Apr 14, 2026 | 7.23 | 7.72 | 7.18 | 7.32 | 7.32 | 247,454 |
| Apr 13, 2026 | 7.12 | 7.25 | 7.02 | 7.20 | 7.20 | 250,891 |
| Apr 10, 2026 | 7.00 | 7.15 | 6.87 | 7.14 | 7.14 | 244,541 |
| Apr 9, 2026 | 6.97 | 7.10 | 6.82 | 6.96 | 6.96 | 297,014 |
| Apr 8, 2026 | 7.21 | 7.27 | 6.91 | 7.03 | 7.03 | 396,770 |
| Apr 7, 2026 | 6.75 | 6.83 | 6.53 | 6.76 | 6.76 | 287,717 |
| Apr 6, 2026 | 6.63 | 6.89 | 6.57 | 6.85 | 6.85 | 228,914 |
| Apr 2, 2026 | 6.06 | 6.65 | 6.05 | 6.61 | 6.61 | 175,828 |
| Apr 1, 2026 | 6.17 | 6.36 | 6.17 | 6.21 | 6.21 | 254,893 |
| Mar 31, 2026 | 5.87 | 6.17 | 5.87 | 6.12 | 6.12 | 309,689 |
| Mar 30, 2026 | 5.81 | 6.04 | 5.70 | 5.75 | 5.75 | 196,695 |
| Mar 27, 2026 | 5.96 | 6.09 | 5.73 | 5.78 | 5.78 | 225,832 |
| Mar 26, 2026 | 6.23 | 6.35 | 6.11 | 6.14 | 6.14 | 155,444 |
| Mar 25, 2026 | 6.39 | 6.52 | 6.22 | 6.32 | 6.32 | 196,370 |
| Mar 24, 2026 | 6.04 | 6.39 | 6.04 | 6.27 | 6.27 | 186,464 |
| Mar 23, 2026 | 6.25 | 6.25 | 6.03 | 6.11 | 6.11 | 552,740 |
| Mar 20, 2026 | 6.07 | 6.15 | 5.91 | 6.11 | 6.11 | 441,409 |
| Mar 19, 2026 | 5.83 | 6.22 | 5.75 | 6.09 | 6.09 | 281,781 |
| Mar 18, 2026 | 6.16 | 6.17 | 5.95 | 5.99 | 5.99 | 281,972 |
| Mar 17, 2026 | 6.13 | 6.31 | 6.08 | 6.22 | 6.22 | 229,843 |
| Mar 16, 2026 | 6.18 | 6.35 | 6.04 | 6.09 | 6.09 | 214,546 |
| Mar 13, 2026 | 6.11 | 6.14 | 5.94 | 6.07 | 6.07 | 178,265 |
| Mar 12, 2026 | 6.12 | 6.29 | 5.99 | 6.01 | 6.01 | 273,677 |
| Mar 11, 2026 | 6.24 | 6.37 | 6.14 | 6.26 | 6.26 | 177,467 |
| Mar 10, 2026 | 6.28 | 6.49 | 5.97 | 6.26 | 6.26 | 270,487 |
| Mar 9, 2026 | 6.07 | 6.42 | 5.90 | 6.37 | 6.37 | 302,766 |
| Mar 6, 2026 | 6.61 | 6.64 | 6.00 | 6.26 | 6.26 | 369,347 |
| Mar 5, 2026 | 6.64 | 6.93 | 6.56 | 6.75 | 6.75 | 325,088 |
| Mar 4, 2026 | 6.32 | 6.96 | 6.32 | 6.74 | 6.74 | 408,481 |
| Mar 3, 2026 | 7.75 | 7.90 | 6.08 | 6.32 | 6.32 | 657,200 |
| Mar 2, 2026 | 6.72 | 7.00 | 6.48 | 6.61 | 6.61 | 387,615 |
| Feb 27, 2026 | 6.84 | 6.98 | 6.79 | 6.90 | 6.90 | 181,470 |
| Feb 26, 2026 | 6.81 | 6.99 | 6.75 | 6.96 | 6.96 | 133,326 |
| Feb 25, 2026 | 6.86 | 6.92 | 6.72 | 6.82 | 6.82 | 130,976 |
| Feb 24, 2026 | 6.39 | 6.92 | 6.39 | 6.79 | 6.79 | 191,911 |
| Feb 23, 2026 | 6.70 | 6.75 | 6.36 | 6.49 | 6.49 | 371,901 |
| Feb 20, 2026 | 6.91 | 7.05 | 6.56 | 6.67 | 6.67 | 327,979 |
| Feb 19, 2026 | 7.01 | 7.02 | 6.82 | 6.99 | 6.99 | 143,332 |
| Feb 18, 2026 | 6.75 | 7.16 | 6.69 | 6.88 | 6.88 | 230,606 |
| Feb 17, 2026 | 6.31 | 6.80 | 6.31 | 6.76 | 6.76 | 184,550 |
| Feb 13, 2026 | 6.42 | 6.69 | 6.40 | 6.49 | 6.49 | 171,874 |
| Feb 12, 2026 | 6.64 | 6.69 | 6.23 | 6.41 | 6.41 | 274,883 |
| Feb 11, 2026 | 6.84 | 6.84 | 6.33 | 6.60 | 6.60 | 267,704 |
| Feb 10, 2026 | 6.87 | 6.95 | 6.69 | 6.77 | 6.77 | 202,619 |
| Feb 9, 2026 | 6.54 | 6.94 | 6.42 | 6.89 | 6.89 | 241,880 |
| Feb 6, 2026 | 6.35 | 6.64 | 6.28 | 6.55 | 6.55 | 404,584 |
| Feb 5, 2026 | 6.32 | 6.42 | 6.11 | 6.20 | 6.20 | 505,302 |
| Feb 4, 2026 | 6.41 | 6.61 | 6.19 | 6.33 | 6.33 | 358,509 |
| Feb 3, 2026 | 6.25 | 6.44 | 6.17 | 6.44 | 6.44 | 403,476 |
| Feb 2, 2026 | 6.27 | 6.45 | 6.06 | 6.19 | 6.19 | 554,382 |
| Jan 30, 2026 | 6.27 | 6.50 | 6.21 | 6.31 | 6.31 | 276,396 |
| Jan 29, 2026 | 6.56 | 6.62 | 6.23 | 6.35 | 6.35 | 313,767 |
| Jan 28, 2026 | 6.84 | 6.84 | 6.51 | 6.56 | 6.56 | 351,353 |
| Jan 27, 2026 | 6.64 | 6.89 | 6.51 | 6.83 | 6.83 | 284,063 |
| Jan 26, 2026 | 6.82 | 6.82 | 6.46 | 6.64 | 6.64 | 318,254 |
| Jan 23, 2026 | 7.05 | 7.47 | 6.77 | 6.84 | 6.84 | 592,283 |
| Jan 22, 2026 | 6.77 | 7.04 | 6.65 | 7.00 | 7.00 | 554,325 |
| Jan 21, 2026 | 6.53 | 6.94 | 6.35 | 6.73 | 6.73 | 669,598 |
| Jan 20, 2026 | 6.54 | 6.89 | 6.19 | 6.52 | 6.52 | 848,500 |
| Jan 16, 2026 | 5.53 | 5.71 | 5.44 | 5.47 | 5.47 | 225,830 |
| Jan 15, 2026 | 5.45 | 5.65 | 5.43 | 5.52 | 5.52 | 299,172 |
| Jan 14, 2026 | 5.37 | 5.51 | 5.35 | 5.44 | 5.44 | 210,903 |
| Jan 13, 2026 | 5.53 | 5.55 | 5.35 | 5.37 | 5.37 | 263,453 |
| Jan 12, 2026 | 5.39 | 5.61 | 5.36 | 5.48 | 5.48 | 222,394 |
| Jan 9, 2026 | 5.45 | 5.57 | 5.38 | 5.40 | 5.40 | 264,743 |
| Jan 8, 2026 | 5.30 | 5.47 | 5.30 | 5.42 | 5.42 | 196,530 |
| Jan 7, 2026 | 5.42 | 5.49 | 5.31 | 5.45 | 5.45 | 250,924 |
| Jan 6, 2026 | 5.46 | 5.46 | 5.20 | 5.40 | 5.40 | 491,733 |
| Jan 5, 2026 | 5.12 | 5.59 | 5.12 | 5.48 | 5.48 | 359,208 |
| Jan 2, 2026 | 5.27 | 5.27 | 5.03 | 5.09 | 5.09 | 296,605 |
| Dec 31, 2025 | 5.21 | 5.35 | 5.16 | 5.25 | 5.25 | 285,647 |
| Dec 30, 2025 | 5.32 | 5.36 | 5.17 | 5.21 | 5.21 | 436,560 |
| Dec 29, 2025 | 5.34 | 5.50 | 5.24 | 5.33 | 5.33 | 306,547 |
| Dec 26, 2025 | 5.43 | 5.46 | 5.26 | 5.41 | 5.41 | 411,746 |
| Dec 24, 2025 | 5.42 | 5.45 | 5.25 | 5.45 | 5.45 | 361,137 |
| Dec 23, 2025 | 5.89 | 5.90 | 5.30 | 5.41 | 5.41 | 691,999 |
| Dec 22, 2025 | 5.90 | 6.09 | 5.85 | 5.93 | 5.93 | 481,038 |
| Dec 19, 2025 | 5.44 | 5.84 | 5.44 | 5.84 | 5.84 | 2,817,785 |
| Dec 18, 2025 | 5.74 | 5.84 | 5.30 | 5.43 | 5.43 | 930,775 |
| Dec 17, 2025 | 5.78 | 6.02 | 5.64 | 5.66 | 5.66 | 476,624 |
| Dec 16, 2025 | 5.87 | 6.00 | 5.67 | 5.78 | 5.78 | 501,552 |
| Dec 15, 2025 | 6.03 | 6.04 | 5.73 | 5.91 | 5.91 | 598,473 |
| Dec 12, 2025 | 6.40 | 6.40 | 5.93 | 5.98 | 5.98 | 450,117 |
| Dec 11, 2025 | 6.57 | 6.58 | 6.38 | 6.40 | 6.40 | 199,724 |
| Dec 10, 2025 | 6.54 | 6.70 | 6.26 | 6.58 | 6.58 | 332,093 |
| Dec 9, 2025 | 6.65 | 6.81 | 6.48 | 6.56 | 6.56 | 337,257 |
| Dec 8, 2025 | 6.63 | 6.83 | 6.42 | 6.68 | 6.68 | 319,757 |
| Dec 5, 2025 | 6.67 | 6.68 | 6.34 | 6.57 | 6.57 | 379,059 |
| Dec 4, 2025 | 6.21 | 6.65 | 6.01 | 6.65 | 6.65 | 340,398 |
| Dec 3, 2025 | 6.10 | 6.33 | 5.94 | 6.22 | 6.22 | 366,270 |
| Dec 2, 2025 | 6.16 | 6.16 | 5.91 | 6.09 | 6.09 | 250,869 |
| Dec 1, 2025 | 6.16 | 6.19 | 5.88 | 6.14 | 6.14 | 340,719 |
| Nov 28, 2025 | 6.42 | 6.43 | 6.16 | 6.35 | 6.35 | 355,171 |
| Nov 26, 2025 | 6.45 | 6.58 | 6.13 | 6.41 | 6.41 | 381,541 |
| Nov 25, 2025 | 6.18 | 6.64 | 6.18 | 6.46 | 6.46 | 529,969 |
| Nov 24, 2025 | 5.93 | 6.38 | 5.93 | 6.18 | 6.18 | 424,919 |
| Nov 21, 2025 | 5.68 | 5.94 | 5.53 | 5.91 | 5.91 | 746,544 |
| Nov 20, 2025 | 5.74 | 5.97 | 5.55 | 5.70 | 5.70 | 552,601 |
| Nov 19, 2025 | 5.35 | 5.67 | 5.26 | 5.60 | 5.60 | 454,706 |
| Nov 18, 2025 | 5.31 | 5.42 | 5.26 | 5.35 | 5.35 | 265,210 |
| Nov 17, 2025 | 5.44 | 5.56 | 5.34 | 5.38 | 5.38 | 265,068 |
| Nov 14, 2025 | 5.70 | 5.82 | 5.48 | 5.48 | 5.48 | 297,316 |
| Nov 13, 2025 | 5.83 | 6.00 | 5.77 | 5.81 | 5.81 | 487,157 |
| Nov 12, 2025 | 6.30 | 6.30 | 5.87 | 5.90 | 5.90 | 506,904 |
| Nov 11, 2025 | 6.25 | 6.25 | 5.84 | 5.89 | 5.89 | 585,627 |
| Nov 10, 2025 | 6.10 | 6.94 | 6.00 | 6.39 | 6.39 | 519,790 |
| Nov 7, 2025 | 7.69 | 7.94 | 7.33 | 7.38 | 7.38 | 518,515 |
| Nov 6, 2025 | 8.02 | 8.02 | 7.61 | 7.80 | 7.80 | 375,127 |
| Nov 5, 2025 | 7.74 | 8.15 | 7.53 | 8.10 | 8.10 | 343,016 |
| Nov 4, 2025 | 7.67 | 7.92 | 7.58 | 7.75 | 7.75 | 327,773 |
| Nov 3, 2025 | 7.97 | 8.12 | 7.71 | 7.93 | 7.93 | 369,376 |
| Oct 31, 2025 | 7.64 | 8.18 | 7.59 | 7.98 | 7.98 | 166,062 |
| Oct 30, 2025 | 7.73 | 7.83 | 7.43 | 7.63 | 7.63 | 321,643 |
| Oct 29, 2025 | 8.03 | 8.16 | 7.58 | 7.69 | 7.69 | 217,686 |
| Oct 28, 2025 | 8.37 | 9.20 | 7.88 | 7.99 | 7.99 | 394,951 |
| Oct 27, 2025 | 8.51 | 8.65 | 8.15 | 8.33 | 8.33 | 183,894 |
| Oct 24, 2025 | 8.53 | 8.76 | 8.44 | 8.51 | 8.51 | 171,245 |
| Oct 23, 2025 | 8.30 | 8.76 | 8.30 | 8.40 | 8.40 | 211,898 |
| Oct 22, 2025 | 8.77 | 8.79 | 8.13 | 8.30 | 8.30 | 253,623 |
| Oct 21, 2025 | 9.01 | 9.07 | 8.74 | 8.77 | 8.77 | 196,363 |
| Oct 20, 2025 | 8.69 | 9.34 | 8.69 | 8.99 | 8.99 | 405,866 |
| Oct 17, 2025 | 8.57 | 8.71 | 8.35 | 8.56 | 8.56 | 205,950 |
| Oct 16, 2025 | 8.62 | 9.18 | 8.61 | 8.68 | 8.68 | 298,322 |
| Oct 15, 2025 | 8.36 | 8.74 | 8.28 | 8.60 | 8.60 | 241,809 |
| Oct 14, 2025 | 7.74 | 8.39 | 7.66 | 8.19 | 8.19 | 222,253 |
| Oct 13, 2025 | 8.25 | 8.25 | 7.71 | 7.87 | 7.87 | 301,717 |
| Oct 10, 2025 | 8.80 | 8.88 | 7.95 | 8.00 | 8.00 | 330,718 |
| Oct 9, 2025 | 9.19 | 9.22 | 8.80 | 8.80 | 8.80 | 266,744 |
| Oct 8, 2025 | 8.86 | 9.19 | 8.86 | 9.15 | 9.15 | 295,919 |
| Oct 7, 2025 | 8.78 | 9.15 | 8.56 | 8.91 | 8.91 | 539,108 |
| Oct 6, 2025 | 9.19 | 9.19 | 8.74 | 8.76 | 8.76 | 580,215 |
| Oct 3, 2025 | 8.77 | 9.08 | 8.75 | 9.07 | 9.07 | 431,767 |
| Oct 2, 2025 | 9.05 | 9.09 | 8.64 | 8.75 | 8.75 | 317,308 |
| Oct 1, 2025 | 8.64 | 9.00 | 8.55 | 8.99 | 8.99 | 567,444 |
| Sep 30, 2025 | 8.15 | 8.79 | 8.07 | 8.76 | 8.76 | 442,145 |
| Sep 29, 2025 | 8.01 | 8.21 | 7.96 | 8.15 | 8.15 | 331,505 |
| Sep 26, 2025 | 8.26 | 8.26 | 7.58 | 8.01 | 8.01 | 676,305 |
| Sep 25, 2025 | 7.49 | 8.29 | 7.40 | 8.22 | 8.22 | 725,610 |
| Sep 24, 2025 | 7.59 | 7.62 | 7.30 | 7.56 | 7.56 | 288,134 |
| Sep 23, 2025 | 7.57 | 7.64 | 7.38 | 7.55 | 7.55 | 577,227 |
Open, high, low and close are the prices as traded. Adjusted close accounts for splits and dividends, and is what the chart and returns use. Where a company changed its ticker, its history under the old symbol is included.
The Quiver API serves daily prices back to 2014 alongside congressional trades, insider trades, 13F holdings and lobbying, all under one key and inside Claude or ChatGPT through our MCP server.
Explore the Quiver APIWe estimate that -- received a compensation of -- in --, making them the highest paid executive at MASS, per a recent SEC DEF 14A filing.
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