American Flag
LABOR DAY SALE

50% off your first year of any Quiver subscription

...

Use Promo Code:

LABOR26
Upgrade
American Flag

MASI

MASI Real Time Price USD
N/A
N/A
N/A
...
Overview
Financials
Forecast
Insiders
Institutions
Compensation
Government
Ownership
News

Chart provided by TradingView

MASI historical prices
Income
Balance Sheet
Cash Flow
Revenue Breakdown
Congress Trading

Recent trades of MASI by members of U.S. Congress

Politician Type Traded
Kevin Hern House / R Sale $15,001 - $50,000 Sep 26, 2025
Kevin Hern House / R Sale $50,001 - $100,000 Dec 19, 2022
Tommy Tuberville Senate / R Sale (Full) $1,001 - $15,000 Oct 05, 2022
Ro Khanna House / D Purchase $1,001 - $15,000 May 23, 2022
Ro Khanna House / D Sale $1,001 - $15,000 N/A
Tommy Tuberville Senate / R Purchase $1,001 - $15,000 Mar 30, 2022
Ro Khanna House / D Sale $1,001 - $15,000 Feb 17, 2022
Ro Khanna House / D Purchase $1,001 - $15,000 Jan 21, 2022
Ro Khanna House / D Purchase $1,001 - $15,000 Nov 08, 2021
Kevin Hern House / R Purchase $15,001 - $50,000 Jun 25, 2021
Kevin Hern House / R Purchase $100,001 - $250,000 Jun 25, 2021
Thom Tillis Senate / R Sale (Full) $1,001 - $15,000 Feb 13, 2015
MASI Stock Insider Trading Activity Follow @QuiverQuant for major insider updates

---

Closing Price
Purchase
Sale
Name
Type
Shares
Price
Shares Held
Date
Reported
MASI Stock Institutional Owners
Investor
Shares
Change in Shares
Market Value
Date
Reported
MASI Derivatives Institutional Owners
Investor
Type
Shares
Change in Shares
Market Value
Date
Reported
Whale Activity

Recently reported changes in MASI holdings by institutional investors

Quiver Logo

No Whale Activity for this ticker

Institutional Holdings Dashboard
Insider Trading

Quarterly net insider trading by MASI'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.

About

Backtest Start Date
CAGR (Total)
Return (30d)
Return (1Y)
View Strategy Copytrade Strategy
  • 1M
  • 3M
  • 6M
  • YTD
  • 1Y
  • 2Y
  • 5Y
  • MAX

About

Backtest Start Date

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

Show More
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.

  • 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.

  • Average Loss

    The average return (%) for trades that resulted in a negative return.

  • 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.

  • 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.

Subscribe to Quiver Premium for insider trading alerts

Be the first to see our newest insights and key updates across all datasets.

See Pricing
schema-2
Corporate Lobbying

Government lobbying spending instances

  • $50,000 Jun 29, 2026 Issue: Health Issues
  • $100,000 Apr 20, 2026 Issue: Health Issues Tariff (miscellaneous tariff bills)
  • $60,000 Jan 20, 2026 Issue: Health Issues Tariff (miscellaneous tariff bills)
  • $50,000 Oct 17, 2025 Issue: Health Issues Tariff (miscellaneous tariff bills)
  • $110,000 Jul 17, 2025 Issue: Health Issues Tariff (miscellaneous tariff bills)
  • $100,000 Apr 21, 2025 Issue: Health Issues Tariff (miscellaneous tariff bills)
  • $80,000 Jan 16, 2025 Issue: Health Issues Copyright/Patent/Trademark Tariff (miscellaneous tariff bills)
  • $140,000 Oct 21, 2024 Issue: Copyright/Patent/Trademark Health Issues
  • $120,000 Jul 19, 2024 Issue: Health Issues
  • $100,000 Jan 22, 2024 Issue: Copyright/Patent/Trademark Health Issues
  • $130,000 Oct 19, 2023 Issue: Copyright/Patent/Trademark Health Issues
  • $100,000 Jul 20, 2023 Issue: Taxation/Internal Revenue Code Copyright/Patent/Trademark Health Issues
  • $200,000 Jan 20, 2023 Issue: Labor Issues/Antitrust/Workplace Taxation/Internal Revenue Code Copyright/Patent/Trademark Health Issues
  • $100,000 Oct 19, 2022 Issue: Copyright/Patent/Trademark Health Issues
  • $60,000 Jul 19, 2022 Issue: Immigration Taxation/Internal Revenue Code Copyright/Patent/Trademark Consumer Issues/Safety/Products Health Issues
  • $80,000 Apr 19, 2022 Issue: Immigration Taxation/Internal Revenue Code Copyright/Patent/Trademark Consumer Issues/Safety/Products Health Issues
  • $70,000 Jan 20, 2022 Issue: None
  • $100,000 Oct 20, 2021 Issue: None
  • $50,000 Jul 19, 2021 Issue: None
  • $60,000 Apr 20, 2021 Issue: None
  • $50,000 Jan 20, 2021 Issue: None
  • $80,000 Oct 19, 2020 Issue: HEALTH ISSUES
  • $90,000 Jul 20, 2020 Issue: None
  • $130,000 Apr 16, 2020 Issue: HEALTH ISSUES
  • $70,000 Jan 21, 2020 Issue: HEALTH ISSUES
  • $80,000 Oct 21, 2019 Issue: Health Issues
  • $60,000 Jul 22, 2019 Issue: Health Issues
  • $20,000 Apr 01, 2019 Issue: Labor Issues/Antitrust/Workplace
  • $20,000 Jan 03, 2019 Issue: Labor Issues/Antitrust/Workplace
  • $20,000 Oct 01, 2018 Issue: Labor Issues/Antitrust/Workplace
  • $20,000 Jul 02, 2018 Issue: Labor Issues/Antitrust/Workplace
  • $20,000 Apr 04, 2018 Issue: Labor Issues/Antitrust/Workplace
  • $20,000 Jan 03, 2018 Issue: Labor Issues/Antitrust/Workplace
  • $20,000 Oct 03, 2017 Issue: Labor Issues/Antitrust/Workplace
  • $20,000 Jul 05, 2017 Issue: Labor Issues/Antitrust/Workplace
  • $20,000 Apr 03, 2017 Issue: Labor Issues/Antitrust/Workplace
  • $20,000 Jan 04, 2017 Issue: Labor Issues/Antitrust/Workplace
  • $20,000 Oct 05, 2016 Issue: Labor Issues/Antitrust/Workplace
  • $20,000 Jul 07, 2016 Issue: Labor Issues/Antitrust/Workplace
  • $20,000 Apr 01, 2016 Issue: Labor Issues/Antitrust/Workplace
  • $20,000 Jan 06, 2016 Issue: Immigration Labor Issues/Antitrust/Workplace
  • $20,000 Oct 01, 2015 Issue: Labor Issues/Antitrust/Workplace
  • $20,000 Jul 07, 2015 Issue: Labor Issues/Antitrust/Workplace
  • $20,000 Apr 03, 2015 Issue: Labor Issues/Antitrust/Workplace
  • $20,000 Jan 05, 2015 Issue: Labor Issues/Antitrust/Workplace
  • $20,000 Oct 01, 2014 Issue: Labor Issues/Antitrust/Workplace
  • $20,000 Jul 02, 2014 Issue: Labor Issues/Antitrust/Workplace
  • $20,000 Apr 02, 2014 Issue: Labor Issues/Antitrust/Workplace
  • $20,000 Jan 02, 2014 Issue: Labor Issues/Antitrust/Workplace
  • $30,000 Oct 01, 2013 Issue: Health Issues Labor Issues/Antitrust/Workplace
  • $30,000 Jul 01, 2013 Issue: Labor Issues/Antitrust/Workplace
  • $10,000 Jan 19, 2010 Issue: Taxation/Internal Revenue Code Health Issues
Revolving Door

Former government officials who have lobbied for MASI

Quiver Logo

No former government officials on record as having lobbied for MASI

Revolving Door Dashboard
Corporate Lobbying

MASI Estimated quarterly lobbying spending

Revenue Breakdown

MASI Revenue by Segment or Geography

By Segment
By Geography
Quiver Logo

No Revenue by Segment data for this ticker

Revenue Breakdown Dashboard
Quiver Logo

No Revenue by Geography data for this ticker

Revenue Breakdown Dashboard
MASI Income Statement
MASI Balance Sheet
MASI Cash Flow
U.S. Patents

New MASI patent grants

  • Patent Title: Display screen or portion thereof with a graphical user interface Sep. 19, 2023
  • Patent Title: Display screen or portion thereof with graphical user interface Sep. 19, 2023
  • Patent Title: Display screen or portion thereof with a graphical user interface Sep. 19, 2023
  • Patent Title: Display screen or portion thereof with a graphical user interface Sep. 12, 2023
  • Patent Title: Display screen or portion thereof with a graphical user interface Sep. 12, 2023
  • Patent Title: Display screen or portion thereof with a graphical user interface Sep. 12, 2023
  • Patent Title: Physiological nose sensor Aug. 29, 2023
  • Patent Title: Holder Jun. 13, 2023
  • Patent Title: Display screen or portion thereof with a graphical user interface for physiological monitoring Jun. 13, 2023
  • Patent Title: Connector May. 09, 2023
  • Patent Title: Wearable temperature measurement device Mar. 07, 2023
  • Patent Title: Connector Feb. 28, 2023
  • Patent Title: Wearable temperature measurement device Jan. 03, 2023
  • Patent Title: Display screen or portion thereof with graphical user interface Dec. 27, 2022
  • Patent Title: Display screen or portion thereof with graphical user interface Dec. 27, 2022
  • Patent Title: Display screen or portion thereof with graphical user interface Dec. 20, 2022
  • Patent Title: Display screen or portion thereof with graphical user interface Dec. 06, 2022
  • Patent Title: Patient monitor Oct. 18, 2022
  • Patent Title: Blood pressure monitor Oct. 04, 2022
  • Patent Title: Dongle Jul. 12, 2022
  • Patent Title: Electrode pad May. 03, 2022
  • Patent Title: Display screen or portion thereof with graphical user interface May. 03, 2022
  • Patent Title: Display screen or portion thereof with graphical user interface May. 03, 2022
  • Patent Title: Physiological trend monitor Apr. 19, 2022
  • Patent Title: Adaptive alarm system Apr. 05, 2022
  • Patent Title: Display screen or portion thereof with graphical user interface Mar. 22, 2022
  • Patent Title: Display screen or portion thereof with graphical user interface Mar. 22, 2022
  • Patent Title: Display screen or portion thereof with graphical user interface Mar. 22, 2022
  • Patent Title: Display screen or portion thereof with graphical user interface Mar. 22, 2022
  • Patent Title: Patient monitor Oct. 12, 2021
  • Patent Title: Blood pressure device Oct. 12, 2021
  • Patent Title: Blood pressure monitor Oct. 12, 2021
  • Patent Title: Electrode pad Aug. 10, 2021
  • Patent Title: Display screen or portion thereof with graphical user interface Jul. 20, 2021
  • Patent Title: Holder for a blood pressure device Jun. 01, 2021
  • Patent Title: Holder for a patient monitor May. 11, 2021
  • Patent Title: Blood pressure device May. 11, 2021
  • Patent Title: Patient monitor Apr. 27, 2021
  • Patent Title: Display screen or portion thereof with graphical user interface Apr. 27, 2021
  • Patent Title: Display screen or portion thereof with a graphical user interface Apr. 27, 2021
  • Patent Title: Adaptive alarm system Mar. 03, 2020
  • Patent Title: Alarm suspend system Apr. 16, 2019
  • Patent Title: Alarm suspend system Feb. 19, 2019
  • Patent Title: Alarm suspend system Feb. 19, 2019
  • Patent Title: Adaptive alarm system Feb. 05, 2019
  • Patent Title: Universal modular pulse oximeter probe for use with reusable and disposable patient attachment devices Apr. 01, 2014
  • Patent Title: Reusable pulse oximeter probe and disposable bandage apparatus Dec. 11, 2012
  • Patent Title: Universal modular pulse oximeter probe for use with reusable and disposable patient attachment devices Feb. 07, 2012
  • Patent Title: Reusable pulse oximeter probe and disposable bandage apparatus Nov. 02, 2010
  • Patent Title: Universal modular pulse oximeter probe for use with reusable and disposable patient attachment devices May. 04, 2010
Government Contracts

Federal grants, loans, and purchases

Government Contracts

Estimated quarterly amount awarded to MASI from public contracts

MASI News

Recent insights relating to MASI

CNBC Recommendations

Recent picks made for MASI stock on CNBC

Top ETF Holders

ETFs with the largest estimated holdings in MASI

MASI Analyst Ratings

MASI Stock Forecasts
...

  • ... Highest Price Target
  • ... Median Price Target
  • ... Lowest Price Target
MASI Analyst Forecasts
Analyst
Firm
Current
Previous
Date
Frequently Asked Questions
  • Is $MASI stock a Buy, Sell, or Hold?

  • What is the price target for $MASI stock?

* Analyst consensus is not financial advice. Please see our data disclaimers .

MASI Top Shareholders
Shareholder
Shares Held
MASI Options Owners
Shareholder
Security
Underlying Shares
Frequently Asked Questions
  • Who owns $MASI stock?

  • Who owns the most shares of $MASI stock?

  • What funds own $MASI 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.

MASI Stock Smart Score

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 MASI Smart Score

Score Breakdown
Bull Case vs Bear Case

See concise summaries of analyst reports, presenting both bullish and bearish arguments for a stock.

Example:

Bulls Say:

The Bulls Say summary highlights positive aspects of the stock.

Bears Say:

The Bears Say summary points out potential risks and negative aspects of the stock.

Show More
About MASI

No description available

MASI (MASI) Historical Stock Prices

MASI (MASI) closed at $179.95 on June 9, 2026. Over the past year its adjusted close ranged from $127.40 to $179.95. Daily prices go back to January 2, 2014, 3,127 trading days in all.

  • 1 month+0.92%
  • 3 months+2.54%
  • Year to date+38.36%
  • 1 year+4.70%
  • 3 years+15.10%
  • 5 years-17.69%
  • Max+519.45%
See every congressional and insider trade on the MASI price chart

Quiver Premium charts MASI'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

Last 12 months, newest first

Access Raw Data Daily prices since 2014 for every ticker, through the Quiver API
DateOpenHighLowCloseAdj. CloseVolume
Jun 9, 2026 179.95 179.99 179.95 179.95 179.95 3,160,100
Jun 8, 2026 179.93 179.97 179.90 179.94 179.94 1,267,415
Jun 5, 2026 178.98 179.00 178.80 178.82 178.82 630,224
Jun 4, 2026 178.72 178.96 178.72 178.90 178.90 951,946
Jun 3, 2026 178.79 178.92 178.63 178.78 178.78 844,300
Jun 2, 2026 178.60 178.88 178.60 178.73 178.73 1,021,275
Jun 1, 2026 178.41 178.72 178.30 178.59 178.59 668,471
May 29, 2026 178.51 178.62 178.38 178.45 178.45 824,696
May 28, 2026 178.58 178.65 178.42 178.45 178.45 1,292,193
May 27, 2026 178.57 178.80 178.39 178.78 178.78 790,340
May 26, 2026 178.69 178.78 178.51 178.67 178.67 910,625
May 22, 2026 178.68 178.84 178.35 178.81 178.81 677,255
May 21, 2026 178.79 178.88 178.60 178.64 178.64 1,180,162
May 20, 2026 178.89 178.89 178.64 178.79 178.79 750,333
May 19, 2026 178.76 178.94 178.51 178.80 178.80 733,490
May 18, 2026 178.49 178.94 178.36 178.80 178.80 1,578,413
May 15, 2026 178.45 178.51 178.35 178.47 178.47 662,232
May 14, 2026 178.45 178.45 178.33 178.35 178.35 585,725
May 13, 2026 178.65 178.67 178.28 178.41 178.41 752,775
May 12, 2026 178.65 178.65 178.48 178.55 178.55 823,708
May 11, 2026 178.35 178.75 178.31 178.50 178.50 833,052
May 8, 2026 178.58 178.58 178.26 178.31 178.31 757,754
May 7, 2026 178.45 178.65 178.31 178.50 178.50 1,241,492
May 6, 2026 178.53 178.74 178.25 178.49 178.49 1,019,003
May 5, 2026 178.45 178.58 178.19 178.58 178.58 1,145,287
May 4, 2026 178.44 178.50 178.16 178.21 178.21 888,376
May 1, 2026 178.49 178.59 178.37 178.48 178.48 1,040,814
Apr 30, 2026 178.50 178.55 178.30 178.43 178.43 921,639
Apr 29, 2026 178.50 178.60 178.42 178.46 178.46 640,501
Apr 28, 2026 178.68 178.75 178.40 178.51 178.51 955,314
Apr 27, 2026 178.59 178.76 178.52 178.66 178.66 523,515
Apr 24, 2026 178.51 178.73 178.44 178.63 178.63 576,615
Apr 23, 2026 178.41 178.75 178.33 178.71 178.71 623,868
Apr 22, 2026 178.49 178.53 178.37 178.53 178.53 606,229
Apr 21, 2026 178.49 178.56 178.36 178.43 178.43 673,968
Apr 20, 2026 178.48 178.50 178.25 178.45 178.45 612,588
Apr 17, 2026 178.45 178.53 178.30 178.39 178.39 456,416
Apr 16, 2026 178.39 178.44 178.25 178.29 178.29 566,663
Apr 15, 2026 178.32 178.50 178.32 178.39 178.39 507,006
Apr 14, 2026 178.40 178.50 178.29 178.39 178.39 505,301
Apr 13, 2026 178.30 178.50 178.22 178.47 178.47 354,850
Apr 10, 2026 178.47 178.49 178.22 178.32 178.32 494,478
Apr 9, 2026 178.46 178.61 178.25 178.33 178.33 627,536
Apr 8, 2026 178.64 178.85 178.29 178.30 178.30 787,701
Apr 7, 2026 178.25 178.73 178.25 178.73 178.73 720,720
Apr 6, 2026 178.35 178.59 178.19 178.49 178.49 1,254,364
Apr 2, 2026 178.01 178.65 177.80 178.59 178.59 1,008,960
Apr 1, 2026 177.87 178.27 177.54 178.01 178.01 771,267
Mar 31, 2026 177.85 178.21 176.94 177.87 177.87 1,328,223
Mar 30, 2026 177.15 177.85 176.75 177.32 177.32 1,590,490
Mar 27, 2026 176.76 177.51 176.68 177.11 177.11 1,134,876
Mar 26, 2026 178.09 178.16 176.80 176.89 176.89 1,630,065
Mar 25, 2026 178.65 178.77 178.01 178.09 178.09 1,021,362
Mar 24, 2026 177.84 179.00 177.84 178.69 178.69 1,680,801
Mar 23, 2026 178.75 178.75 177.58 178.44 178.44 1,744,735
Mar 20, 2026 178.50 178.83 178.00 178.24 178.24 2,366,584
Mar 19, 2026 178.15 178.87 177.53 178.70 178.70 3,068,611
Mar 18, 2026 176.00 176.42 175.81 176.07 176.07 2,676,426
Mar 17, 2026 175.49 176.19 175.45 175.97 175.97 3,642,133
Mar 16, 2026 175.51 175.58 175.37 175.40 175.40 1,915,476
Mar 13, 2026 175.57 175.57 175.46 175.49 175.49 1,814,182
Mar 12, 2026 175.43 175.55 175.43 175.50 175.50 2,284,170
Mar 11, 2026 175.48 175.57 175.45 175.47 175.47 1,034,596
Mar 10, 2026 175.59 175.73 175.41 175.49 175.49 2,607,535
Mar 9, 2026 175.34 175.80 175.30 175.45 175.45 2,961,392
Mar 6, 2026 175.56 175.59 175.35 175.42 175.42 2,488,149
Mar 5, 2026 175.40 175.61 175.35 175.46 175.46 1,579,357
Mar 4, 2026 175.35 175.58 175.29 175.37 175.37 1,579,447
Mar 3, 2026 175.34 175.50 175.22 175.36 175.36 1,600,273
Mar 2, 2026 175.22 175.65 175.13 175.40 175.40 916,824
Feb 27, 2026 175.25 175.62 175.15 175.35 175.35 922,910
Feb 26, 2026 175.28 175.43 175.13 175.22 175.22 2,052,697
Feb 25, 2026 175.56 175.56 175.10 175.10 175.10 1,712,665
Feb 24, 2026 175.34 175.90 175.21 175.35 175.35 1,950,828
Feb 23, 2026 175.20 175.69 175.20 175.25 175.25 2,268,007
Feb 20, 2026 175.28 175.56 175.03 175.10 175.10 4,761,057
Feb 19, 2026 175.59 175.70 175.00 175.33 175.33 3,876,524
Feb 18, 2026 174.80 175.80 174.70 175.61 175.61 5,156,784
Feb 17, 2026 175.00 175.25 174.37 174.69 174.69 14,818,218
Feb 13, 2026 133.33 133.82 129.21 130.15 130.15 905,991
Feb 12, 2026 135.04 135.87 130.67 132.96 132.96 704,496
Feb 11, 2026 134.01 135.91 130.23 135.04 135.04 534,029
Feb 10, 2026 134.76 136.51 133.83 134.10 134.10 764,735
Feb 9, 2026 138.21 139.22 134.31 134.80 134.80 621,925
Feb 6, 2026 136.08 139.32 134.45 139.15 139.15 558,924
Feb 5, 2026 136.81 138.04 133.73 135.33 135.33 592,309
Feb 4, 2026 139.78 142.05 135.51 136.62 136.62 711,334
Feb 3, 2026 138.33 141.75 136.80 139.13 139.13 715,523
Feb 2, 2026 136.46 138.52 135.74 138.42 138.42 451,782
Jan 30, 2026 136.35 138.26 133.99 137.33 137.33 629,949
Jan 29, 2026 138.17 138.94 135.64 136.25 136.25 547,770
Jan 28, 2026 137.80 138.76 135.91 137.67 137.67 1,136,259
Jan 27, 2026 139.30 139.62 137.44 137.92 137.92 528,196
Jan 26, 2026 141.90 142.48 139.64 140.20 140.20 553,408
Jan 23, 2026 143.51 144.59 141.40 141.46 141.46 702,495
Jan 22, 2026 146.34 146.70 142.13 143.93 143.93 1,022,070
Jan 21, 2026 144.13 148.75 142.97 146.21 146.21 1,075,647
Jan 20, 2026 140.14 143.53 138.84 142.70 142.70 1,033,213
Jan 16, 2026 139.35 144.29 139.35 142.05 142.05 863,953
Jan 15, 2026 138.07 143.95 137.73 139.87 139.87 1,292,501
Jan 14, 2026 129.26 138.99 128.89 138.41 138.41 1,287,584
Jan 13, 2026 131.39 133.46 129.77 129.83 129.83 508,998
Jan 12, 2026 139.85 139.85 130.57 132.23 132.23 587,791
Jan 9, 2026 138.41 140.34 135.20 138.92 138.92 542,876
Jan 8, 2026 136.15 138.62 135.47 137.91 137.91 608,937
Jan 7, 2026 136.83 138.19 135.48 137.08 137.08 523,312
Jan 6, 2026 133.62 137.38 133.62 136.60 136.60 642,991
Jan 5, 2026 127.02 134.88 125.94 134.00 134.00 1,022,174
Jan 2, 2026 130.59 130.59 126.57 127.40 127.40 601,418
Dec 31, 2025 130.48 131.95 129.77 130.06 130.06 600,320
Dec 30, 2025 130.45 131.28 129.83 131.07 131.07 627,057
Dec 29, 2025 132.60 133.79 130.53 130.82 130.82 532,988
Dec 26, 2025 132.82 133.68 131.92 132.76 132.76 304,934
Dec 24, 2025 133.68 134.81 133.21 133.28 133.28 257,216
Dec 23, 2025 135.96 136.50 133.59 133.87 133.87 536,701
Dec 22, 2025 134.00 137.44 133.99 137.00 137.00 805,991
Dec 19, 2025 136.49 137.78 131.47 134.04 134.04 1,498,291
Dec 18, 2025 135.72 137.53 135.58 136.66 136.66 785,637
Dec 17, 2025 134.52 137.11 133.97 135.72 135.72 985,756
Dec 16, 2025 137.19 137.88 132.90 134.52 134.52 976,793
Dec 15, 2025 137.95 138.26 136.22 137.40 137.40 695,377
Dec 12, 2025 142.00 142.63 138.01 138.34 138.34 540,831
Dec 11, 2025 140.74 142.04 137.00 141.28 141.28 1,178,653
Dec 10, 2025 138.99 141.03 138.50 139.77 139.77 721,246
Dec 9, 2025 141.03 142.70 138.53 138.62 138.62 1,068,172
Dec 8, 2025 140.72 141.95 139.00 140.85 140.85 594,202
Dec 5, 2025 142.82 147.82 140.83 141.68 141.68 840,733
Dec 4, 2025 138.27 142.29 135.29 142.26 142.26 1,043,827
Dec 3, 2025 143.20 149.84 136.99 138.09 138.09 1,219,262
Dec 2, 2025 143.84 144.38 141.50 142.19 142.19 549,122
Dec 1, 2025 142.24 144.45 141.88 144.02 144.02 688,970
Nov 28, 2025 142.79 143.80 142.03 142.43 142.43 260,412
Nov 26, 2025 145.72 147.15 143.65 143.96 143.96 467,475
Nov 25, 2025 145.77 148.68 144.46 146.49 146.49 820,077
Nov 24, 2025 149.45 151.37 145.08 145.62 145.62 769,396
Nov 21, 2025 143.88 150.84 143.88 149.25 149.25 1,011,419
Nov 20, 2025 141.58 145.91 141.45 143.00 143.00 589,482
Nov 19, 2025 144.10 144.10 139.76 140.94 140.94 883,654
Nov 18, 2025 145.57 147.97 141.50 143.88 143.88 969,342
Nov 17, 2025 152.26 152.26 146.82 147.03 147.03 704,402
Nov 14, 2025 151.22 153.57 150.15 151.12 151.12 679,970
Nov 13, 2025 149.12 152.58 148.34 152.43 152.43 688,237
Nov 12, 2025 145.67 152.85 145.67 149.79 149.79 520,455
Nov 11, 2025 144.47 151.40 143.85 146.68 146.68 1,498,949
Nov 10, 2025 143.17 146.91 142.68 144.50 144.50 692,035
Nov 7, 2025 143.14 146.18 141.97 143.16 143.16 585,898
Nov 6, 2025 139.49 143.97 139.00 143.84 143.84 620,660
Nov 5, 2025 150.98 157.72 138.55 142.14 142.14 2,594,407
Nov 4, 2025 143.52 152.34 142.95 149.01 149.01 1,440,511
Nov 3, 2025 140.10 145.61 140.10 144.96 144.96 983,806
Oct 31, 2025 141.67 142.02 138.68 140.65 140.65 787,033
Oct 30, 2025 143.24 146.76 141.41 141.54 141.54 359,036
Oct 29, 2025 146.40 147.17 141.66 142.91 142.91 653,123
Oct 28, 2025 147.59 148.59 146.01 146.41 146.41 418,135
Oct 27, 2025 147.98 148.82 147.16 148.00 148.00 420,836
Oct 24, 2025 149.15 149.84 147.65 147.78 147.78 336,931
Oct 23, 2025 147.36 150.08 146.56 148.73 148.73 438,694
Oct 22, 2025 148.85 150.66 146.22 147.23 147.23 657,264
Oct 21, 2025 147.00 149.07 146.38 148.33 148.33 743,151
Oct 20, 2025 148.10 149.05 146.66 147.01 147.01 625,335
Oct 17, 2025 145.96 147.88 145.00 146.78 146.78 588,412
Oct 16, 2025 149.34 150.00 145.58 147.22 147.22 491,888
Oct 15, 2025 147.48 149.30 145.88 148.56 148.56 447,078
Oct 14, 2025 146.21 151.68 145.72 147.45 147.45 500,275
Oct 13, 2025 146.33 148.24 145.31 148.01 148.01 584,699
Oct 10, 2025 151.13 151.16 144.10 144.64 144.64 591,876
Oct 9, 2025 155.09 155.99 149.70 150.53 150.53 624,548
Oct 8, 2025 150.84 154.23 148.99 153.72 153.72 633,202
Oct 7, 2025 149.35 152.43 148.49 150.25 150.25 1,130,269
Oct 6, 2025 147.48 149.37 146.43 148.13 148.13 883,896
Oct 3, 2025 146.17 148.98 145.77 147.29 147.29 545,261
Oct 2, 2025 141.63 146.12 140.89 146.05 146.05 622,563
Oct 1, 2025 147.26 149.19 140.82 142.54 142.54 983,612
Sep 30, 2025 142.73 148.42 142.67 147.55 147.55 672,450
Sep 29, 2025 142.72 143.05 140.51 142.94 142.94 664,706
Sep 26, 2025 140.19 142.81 139.60 141.40 141.40 652,023
Sep 25, 2025 138.11 139.80 136.64 139.75 139.75 737,978
Sep 24, 2025 140.47 143.05 139.23 140.42 140.42 715,054
Sep 23, 2025 141.82 143.97 140.25 140.36 140.36 727,195
Sep 22, 2025 139.99 142.31 137.84 142.13 142.13 441,218
Sep 19, 2025 143.00 143.23 140.16 140.43 140.43 1,106,202
Sep 18, 2025 141.97 144.02 140.57 143.00 143.00 566,785
Sep 17, 2025 143.95 144.59 140.11 141.23 141.23 997,571
Sep 16, 2025 145.16 145.71 141.73 143.00 143.00 770,677
Sep 15, 2025 148.07 148.95 145.15 145.72 145.72 547,411
Sep 12, 2025 145.51 148.40 143.90 147.44 147.44 699,218
Sep 11, 2025 148.05 149.35 144.85 146.21 146.21 646,743
Sep 10, 2025 147.63 148.46 144.63 145.82 145.82 360,599
Sep 9, 2025 149.46 149.46 147.17 148.12 148.12 357,231
Sep 8, 2025 147.19 149.94 145.92 148.79 148.79 740,286
Sep 5, 2025 142.53 148.08 142.06 147.19 147.19 693,983
Sep 4, 2025 137.55 143.34 136.35 143.01 143.01 709,748
Sep 3, 2025 137.46 138.50 135.73 136.77 136.77 536,802
Sep 2, 2025 137.00 138.20 135.34 137.74 137.74 681,907
Aug 29, 2025 141.26 141.93 138.77 139.71 139.71 459,939
Aug 28, 2025 142.50 142.75 139.44 140.95 140.95 668,158
Aug 27, 2025 142.33 144.08 141.17 142.49 142.49 777,553
Aug 26, 2025 145.59 145.79 142.86 143.25 143.25 575,690
Aug 25, 2025 146.68 147.67 144.66 145.15 145.15 467,394
Aug 22, 2025 145.12 149.59 144.28 148.63 148.63 430,001
Aug 21, 2025 144.39 146.16 143.11 144.24 144.24 721,423
Aug 20, 2025 146.00 147.11 144.02 145.65 145.65 667,784
Aug 19, 2025 153.74 154.70 146.49 146.76 146.76 1,022,969
Aug 18, 2025 153.45 155.88 153.45 153.93 153.93 528,907
Aug 15, 2025 152.92 158.29 152.92 153.87 153.87 441,178
Aug 14, 2025 151.80 152.02 147.21 151.87 151.87 970,232
Aug 13, 2025 152.74 156.71 151.71 155.96 155.96 904,099
Aug 12, 2025 148.99 151.54 147.47 150.13 150.13 652,763
Aug 11, 2025 144.97 149.66 144.27 147.37 147.37 871,184
Aug 8, 2025 145.12 147.40 144.17 144.73 144.73 903,355
Aug 7, 2025 146.23 148.08 144.28 144.90 144.90 888,293
Aug 6, 2025 162.98 162.98 135.83 144.65 144.65 3,725,218
Aug 5, 2025 161.16 164.32 159.23 163.88 163.88 1,142,138
Aug 4, 2025 154.38 162.68 153.48 161.27 161.27 962,048
Aug 1, 2025 153.81 157.16 150.42 153.95 153.95 476,024
Jul 31, 2025 155.25 158.81 152.73 153.79 153.79 633,399
Jul 30, 2025 159.47 162.00 155.27 156.02 156.02 861,588
Jul 29, 2025 162.16 162.65 158.86 158.94 158.94 487,978
Jul 28, 2025 164.77 164.77 161.78 162.18 162.18 549,021
Jul 25, 2025 162.74 165.20 161.98 164.62 164.62 561,638
Jul 24, 2025 164.81 166.96 161.19 161.38 161.38 454,270
Jul 23, 2025 159.98 165.60 158.81 165.00 165.00 631,406
Jul 22, 2025 155.81 158.48 154.54 158.23 158.23 571,939
Jul 21, 2025 154.66 155.75 153.36 155.13 155.13 412,278
Jul 18, 2025 160.74 160.74 154.15 154.47 154.47 509,186
Jul 17, 2025 158.58 159.94 155.87 158.35 158.35 491,420
Jul 16, 2025 160.54 161.09 158.05 159.45 159.45 418,382
Jul 15, 2025 161.16 161.69 159.79 160.04 160.04 461,287
Jul 14, 2025 162.68 163.50 160.83 161.69 161.69 556,072
Jul 11, 2025 165.75 165.75 161.03 162.99 162.99 459,103
Jul 10, 2025 166.14 168.81 165.59 166.32 166.32 356,274
Jul 9, 2025 162.57 166.16 162.04 165.41 165.41 389,097
Jul 8, 2025 162.64 165.50 161.18 162.35 162.35 868,197
Jul 7, 2025 166.76 167.94 161.88 162.45 162.45 832,123
Jul 3, 2025 171.72 171.72 165.53 167.57 167.57 498,674
Jul 2, 2025 168.67 172.54 167.57 171.34 171.34 431,836
Jul 1, 2025 168.04 171.12 163.29 169.01 169.01 539,421
Jun 30, 2025 168.48 169.17 166.54 168.22 168.22 394,499
Jun 27, 2025 167.20 168.76 165.09 168.21 168.21 1,215,647
Jun 26, 2025 171.34 171.82 165.72 166.71 166.71 590,110
Jun 25, 2025 170.42 173.99 168.28 169.30 169.30 726,886
Jun 24, 2025 168.57 171.23 166.59 170.27 170.27 863,144
Jun 23, 2025 164.96 168.48 162.99 168.12 168.12 404,009
Jun 20, 2025 164.54 167.66 163.37 165.18 165.18 630,763
Jun 18, 2025 159.85 163.25 158.63 162.77 162.77 362,357
Jun 17, 2025 161.60 162.78 159.23 159.32 159.32 349,193
Jun 16, 2025 161.78 164.97 161.45 162.54 162.54 429,055
Jun 13, 2025 160.15 163.24 157.54 161.20 161.20 547,196
Jun 12, 2025 165.79 166.79 164.71 165.34 165.34 466,212
Jun 11, 2025 168.85 168.86 165.49 167.01 167.01 617,703
Jun 10, 2025 171.88 174.50 167.54 168.03 168.03 654,126
Jun 9, 2025 172.42 173.40 169.53 171.88 171.88 787,565

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.

Need daily prices for every ticker, in code?

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 API
MASI Executive Compensation

We estimate that -- received a compensation of -- in --, making them the highest paid executive at MASI, per a recent SEC DEF 14A filing.



Name
Role
Salary
Bonus
Stock/Option Awards
Total Compensation