Thu., September 21st, 2023 | MarketBeat Staff
An insider transaction occurs when a company executive that has non-public information about a company buys or sells shares of their company’s stock. Insiders, such as CEOs, COOs, and CFOs, are required by law to regularly report their stock purchases and sales to the Securities and Exchange Commission.
Tracking a company’s insider transactions is a metric that can be used to identify the direction that its executives believe that its stock is heading. If several insiders sell shares of their company at once, they may believe that the company will have weak future earnings and that the share price will decline in the near future.
For example, if Microsoft's CEO, CFO, and COO all recently sold shares of Microsoft stock, that would be an indication that there could be unreported news that may negatively affect Microsoft's stock price.
This slideshow lists the 12 companies that have had the highest levels of insider buying within the last 180 days.
#1 - Clean Harbors (NYSE:CLH)
- Dollar Amount of Shares Sold
- $12,587,104.73
- Number of Insider Stock Sales in the Last 180 Days
- 20
- Volume of Shares Sold
- 80,025
- Who Sold Shares
- Alan S Mckim (Insider), Andrea Robertson (Director), Eric J Dugas (CAO), Eric J Dugas (CFO), Eric W Gerstenberg (CEO), Eugene G Banucci (Director), George L Curtis (VP), John T Preston (Director), Lauren States (Director), Melkeya Mcduffie (EVP), Michael J Twohig (EVP), Michael Louis Battles (CEO), Robert Speights (Insider) and Sharon M Gabriel (EVP)
About Clean Harbors

Clean Harbors, Inc provides environmental and industrial services in the United States and internationally. The company operates through two segments: The Environmental Services and The Safety-Kleen Sustainability Solutions. The Environmental Services segment collects, transports, treats, and disposes hazardous and non-hazardous waste, such as resource recovery, physical treatment, fuel blending, incineration, landfill disposal, wastewater treatment, lab chemicals disposal, and explosives management services; and offers CleanPack services, including collection, identification, categorization, specialized packaging, transportation, and disposal of laboratory chemicals and household hazardous waste.
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#2 - ServiceNow (NYSE:NOW)
- Dollar Amount of Shares Sold
- $25,235,615.37
- Number of Insider Stock Sales in the Last 180 Days
- 36
- Volume of Shares Sold
- 47,907
- Who Sold Shares
- Anita M Sands (Director), Chirantan Jitendra Desai (COO), Christopher Bedi (Insider), Frederic B Luddy (Director), Gina Mastantuono (CFO), Jacqueline P Canney (Insider), Lara Caimi (Insider), Lawrence Jackson (Director), Nicholas Tzitzon (Insider), Paul Edward Chamberlain (Director), Paul John Smith (Insider) and Russell S Elmer (General Counsel)
About ServiceNow

ServiceNow, Inc provides enterprise cloud computing solutions that defines, structures, consolidates, manages, and automates services for enterprises worldwide. The company operates the Now platform for workflow automation, artificial intelligence, machine learning, robotic process automation, process mining, performance analytics, electronic service catalogs and portals, configuration management systems, data benchmarking, encryption, and collaboration and development tools.
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#3 - Marriott International (NASDAQ:MAR)
- Dollar Amount of Shares Sold
- $24,416,889.26
- Number of Insider Stock Sales in the Last 180 Days
- 13
- Volume of Shares Sold
- 122,707
- Who Sold Shares
- Anthony Capuano (CEO), Benjamin T Breland (EVP), David S Marriott (Insider), Deborah Marriott Harrison (Insider), Drew Pinto (EVP), Eric Hippeau (Director), Felitia Lee (CAO), Kathleen K Oberg (CFO), Peggy Fang Roe (EVP), Rajeev Menon (Insider) and William P Brown (Insider)
About Marriott International

Marriott International, Inc operates, franchises, and licenses hotel, residential, timeshare, and other lodging properties worldwide. The company operates through U.S. and Canada, and International segments. It operates its properties under the JW Marriott, The Ritz-Carlton, Ritz-Carlton Reserve, W Hotels, The Luxury Collection, St.
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#4 - SkyWater Technology (NASDAQ:SKYT)
- Dollar Amount of Shares Sold
- $2,588,646.13
- Number of Insider Stock Sales in the Last 180 Days
- 24
- Volume of Shares Sold
- 279,709
- Who Sold Shares
- Amanda Daniel (Insider), Bart L Zibrowski (Major Shareholder), Bradley Ferguson (Insider), Developments LLC Ddk (Major Shareholder), Gregory B Graves (Director), John T Kurtzweil (Director), Loren A Unterseher (Director), Mark Litecky (CRO), Steve Kosier (CTO), Steve Manko (CFO) and Thomas Sonderman (CEO)
About SkyWater Technology

SkyWater Technology, Inc, together with its subsidiaries, operates as a pure-play technology foundry that engages in the provision of semiconductor development and manufacturing services. The company offers engineering and process development support services to co-create technologies with customers; and semiconductor manufacturing services for various silicon-based analog and mixed-signal, power discrete, micro-electromechanical systems, and rad-hard integrated circuits.
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#5 - Unity Software (NYSE:U)
- Dollar Amount of Shares Sold
- $40,889,629.19
- Number of Insider Stock Sales in the Last 180 Days
- 30
- Volume of Shares Sold
- 1,092,799
- Who Sold Shares
- Carol W Carpenter (CMO), David Helgason (Director), John S Riccitiello (CEO), Lake Group LLC Silver (Director), Luis Felipe Visoso (CFO), Marc Whitten (Insider), Mark Barrysmith (Insider), Michelle K Lee (Director), Robynne Sisco (Director), Shlomo Dovrat (Director) and Tomer Bar-Zeev (Insider)
About Unity Software

Unity Software Inc operates a real-time 3D development platform. Its platform provides software solutions to create, run, and monetize interactive, real-time 2D and 3D content for mobile phones, tablets, PCs, consoles, and augmented and virtual reality devices. The company offers its solutions directly through its online store and field sales operations in North America, Denmark, Finland, the United Kingdom, Germany, Japan, China, Singapore, and South Korea, as well as indirectly through independent distributors and resellers worldwide.
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- Dollar Amount of Shares Sold
- $29,169,957.16
- Number of Insider Stock Sales in the Last 180 Days
- 40
- Volume of Shares Sold
- 691,888
- Who Sold Shares
- Battery Partners Xi, Llc (Major Shareholder), Dharmesh Thakker (Major Shareholder), Isabelle Winkles (CFO), Jesse Feldman (Major Shareholder), Jonathan Hyman (CTO), Myles Kleeger (Insider), Pankaj Malik (CAO), Phillip M Fernandez (Director), Scott R Tobin (major shareholder), Susan Wiseman (General Counsel) and William Magnuson (CEO)
About Braze

Braze, Inc operates a customer engagement platform that provides interactions between consumers and brands worldwide. The company offers data ingestion products, such as Braze software development kits that automatically manage data ingestion and deliver mobile and web notifications, in-application/in-browser interstitial messages, and content cards; REST API that can be used to import or export data or to trigger workflows between Braze and brands' existing technology stacks; partner cohort syncing, which allow brands to sync user cohorts from partners; and Braze Cloud Data Ingestion that enables brands to harness their customer data.
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#7 - Aehr Test Systems (NASDAQ:AEHR)
- Dollar Amount of Shares Sold
- $22,510,658.59
- Number of Insider Stock Sales in the Last 180 Days
- 15
- Volume of Shares Sold
- 461,245
- Who Sold Shares
- Alistair N Sporck (VP), David S Hendrickson (Insider), Donald P Richmond II (VP), Gayn Erickson (CEO), Geoffrey Gates Scott (Director), Howard T Slayen (Director), Kenneth B Spink (CFO), Laura Oliphant (Director), Mario M Rosati (Director), Rhea J Posedel (Director) and Vernon Rogers (VP)
About Aehr Test Systems

Aehr Test Systems provides test solutions for testing, burning-in, and semiconductor devices in wafer level, singulated die, and package part form, and installed systems worldwide. Its product portfolio includes FOX-XP and FOX-NP systems that are full wafer contact and singulated die/module test and burn-in systems that can test, burn-in, and stabilize range of devices, including silicon carbide-based and other power semiconductors, 2D and 3D sensors used in mobile phones, tablets and other computing devices, memory semiconductors, processors, microcontrollers, systems-on-a-chip, and photonics and integrated optical devices.
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- Dollar Amount of Shares Sold
- $9,947,221.18
- Number of Insider Stock Sales in the Last 180 Days
- 23
- Volume of Shares Sold
- 82,075
- Who Sold Shares
- Bridgette P Heller (Director), Jacob Steven Leach (EVP), Jereme M Sylvain (CFO), Kevin R Sayer (CEO), Matthew Vincent Dolan (SVP), Michael Jon Brown (EVP), Paul R Flynn (EVP), Sadie Stern (EVP), Shelly Ramasamy Selvaraj (SVP), Steven R Altman (Director) and Steven Robert Pacelli (Director)
About DexCom

DexCom, Inc, a medical device company, focuses on the design, development, and commercialization of continuous glucose monitoring (CGM) systems in the United States and internationally. The company provides its systems for use by people with diabetes, as well as for use by healthcare providers. Its products include Dexcom G6 and Dexcom G7, integrated CGM systems for diabetes management; Dexcom Share, a remote monitoring system; Dexcom Real-Time API, which enables authorized third-party software developers to integrate real-time CGM data into their digital health apps and devices for specific and permitted use cases, including non-medical device applications, medical device data analysis, integrated continuous glucose monitoring systems (iCGM) secondary display alarms, active patient monitoring, and treatment decisions; and Dexcom ONE, that is designed to replace finger stick blood glucose testing for diabetes treatment decisions.
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#9 - Gartner (NYSE:IT)
- Dollar Amount of Shares Sold
- $14,247,597.54
- Number of Insider Stock Sales in the Last 180 Days
- 15
- Volume of Shares Sold
- 41,769
- Who Sold Shares
- Alwyn Dawkins (EVP), Anne Sutherland Fuchs (Director), Eugene A Hall (CEO), James C Smith (Director), Kenneth Allard (CMO), Michael Patrick Diliberto (EVP), Robin B Kranich (EVP), Scott Hensel (EVP), Valentin Sribar (EVP), William James Wartinbee III (SVP) and Yvonne Genovese (EVP)
About Gartner

Gartner, Inc operates as a research and advisory company in the United States, Canada, Europe, the Middle East, Africa, and internationally. It operates through three segments: Research, Conferences, and Consulting. The Research segment delivers its research primarily through a subscription service that include on-demand access to published research content, data and benchmarks, and direct access to a network of research experts.
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#10 - Intuitive Surgical (NASDAQ:ISRG)
- Dollar Amount of Shares Sold
- $42,572,479.14
- Number of Insider Stock Sales in the Last 180 Days
- 13
- Volume of Shares Sold
- 135,592
- Who Sold Shares
- Alan J Levy (Director), Amy L Ladd (Director), Craig H Barratt (Director), David J Rosa (EVP), Fredrik Widman (VP), Gary S Guthart (CEO), Mark J Rubash (Director), Marshall Mohr (VP), Myriam Curet (EVP) and Robert Desantis (EVP)
About Intuitive Surgical

Intuitive Surgical, Inc develops, manufactures, and markets products that enable physicians and healthcare providers to enhance the quality of and access to minimally invasive care in the United States and internationally. The company offers the da Vinci Surgical System to enable complex surgery using a minimally invasive approach; and Ion endoluminal system, which extends its commercial offerings beyond surgery into diagnostic procedures enabling minimally invasive biopsies in the lung.
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- Dollar Amount of Shares Sold
- $40,062,177.30
- Number of Insider Stock Sales in the Last 180 Days
- 24
- Volume of Shares Sold
- 1,972,578
- Who Sold Shares
- Barry L Padgett (Director), Jennifer H Taylor (Director), Johanna Flower (Director), Pradeep Rathinam (CRO), Rathnagirish Mathrubootham (CEO), Roxanne S Austin (Director), Srinivasagopalan Ramamurthy (Insider), Stacey Epstein (CMO), Tyler Sloat (CFO) and Zachary Nelson (Director)
About Freshworks

Freshworks Inc, a software development company, provides modern software-as-a-service products worldwide. It offers Freshdesk Support Desk that enables businesses to delight their customers at every service engagement touchpoint across traditional channels, including email, and modern channels, such as messaging and social media; Freshdesk Contact Center that offers agents with cloud-based telephony system to connect with customers that supports complex call-flows, number and call management, IVR, and routing needs, as well as live dashboard and reports; and Freshdesk Customer Success, which helps customer success managers at business to business (B2B) subscription companies.
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#12 - Getty Images (NYSE:GETY)
- Dollar Amount of Shares Sold
- $8,596,195.15
- Number of Insider Stock Sales in the Last 180 Days
- 19
- Volume of Shares Sold
- 1,243,792
- Who Sold Shares
- Cho Mikael (SVP), Chris Hoel (CAO), Craig Warren Peters (CEO), Daine Marc Weston (VP), Gene Foca (CMO), Grant Farhall (Insider), Jennifer Leyden (CFO), Kenneth Arrigo Mainardis (SVP), Michael Teaster (Insider) and Neuberger Berman Group Llc (Major Shareholder)
About Getty Images

Getty Images Holdings, Inc operates as a creator and distributor of award-winning still imagery, video, music, and multimedia products. The company provides other forms of premium digital content, including music. Its award-winning photographers and imagery help customers produce inspiring work which appears every day in the world's most influential newspapers, magazines, advertising campaigns, films, television programs, and books.
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#13 - Axcelis Technologies (NASDAQ:ACLS)
- Dollar Amount of Shares Sold
- $17,766,671.72
- Number of Insider Stock Sales in the Last 180 Days
- 22
- Volume of Shares Sold
- 124,156
- Who Sold Shares
- Douglas A Lawson (EVP), Greg Redinbo (EVP), Jeanne Quirk (Director), John T Kurtzweil (Director), Joseph P Keithley (Director), Kevin J Brewer (CFO), Lynnette C Fallon (VP), Mary G Puma (Insider), Russell Low (CEO) and Tzu Yin Chiu (Director)
About Axcelis Technologies

Axcelis Technologies, Inc designs, manufactures, and services ion implantation and other processing equipment used in the fabrication of semiconductor chips in the United States, Europe, and Asia Pacific. The company offers high energy, high current, and medium current implanters for various application requirements.
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