John Sullivan Biography and Net Worth

Director of Mesa Laboratories

John Sullivan, Ph.D. was appointed as the Chairman of the Board upon his retirement from his position as Chief Executive Officer and President in September 2017. Dr. Sullivan was previously promoted to the position of Chief Executive Officer and President, in March 2009. Dr. Sullivan joined us in October 2004 in the role of Vice President of Sales and Marketing and was promoted to the positions of President and Chief Operating Officer in 2006. In 1988, Dr. Sullivan joined Varian, Inc. (a major analytical instrument manufacturer) and served in various capacities in Research and Development, Sales and Marketing Management, and Business Development until 2004. In 1982, Dr. Sullivan joined the U.S. Food and Drug Administration’s Seattle District Laboratory as a Senior Research Scientist and worked there until 1988. From 1976 until 1980, Dr. Sullivan was employed as an Analytical Chemist at BioMed Research Labs (an independent research and testing laboratory). Dr. Sullivan received his Bachelor of Science degree in Biology from Western Washington University in 1976 and a Ph.D. degree in Food Science from the University of Washington in 1982.

What is John James Sullivan's net worth?

The estimated net worth of John James Sullivan is at least $3.36 million as of June 7th, 2022. Dr. Sullivan owns 23,857 shares of Mesa Laboratories stock worth more than $3,361,213 as of September 26th. This net worth estimate does not reflect any other assets that Dr. Sullivan may own. Learn More about John James Sullivan's net worth.

How do I contact John James Sullivan?

The corporate mailing address for Dr. Sullivan and other Mesa Laboratories executives is 12100 W 6TH AVE, LAKEWOOD CO, 80228. Mesa Laboratories can also be reached via phone at (303) 987-8000 and via email at [email protected] Learn More on John James Sullivan's contact information.

Has John James Sullivan been buying or selling shares of Mesa Laboratories?

John James Sullivan has not been actively trading shares of Mesa Laboratories within the last three months. Most recently, John James Sullivan sold 5,192 shares of the business's stock in a transaction on Tuesday, June 7th. The shares were sold at an average price of $207.76, for a transaction totalling $1,078,689.92. Following the completion of the sale, the director now directly owns 23,857 shares of the company's stock, valued at $4,956,530.32. Learn More on John James Sullivan's trading history.

Who are Mesa Laboratories' active insiders?

Mesa Laboratories' insider roster includes Brian Archbold (SVP), Gregory DiNoia (SVP), Evan Guillemin (Director), David Kelly (Director), Gary Owens (CEO), John Sakys (CFO), John Schmieder (Director), and John Sullivan (Director). Learn More on Mesa Laboratories' active insiders.

Are insiders buying or selling shares of Mesa Laboratories?

During the last twelve months, insiders at the medical instruments supplier sold shares 18 times. They sold a total of 34,425 shares worth more than $9,113,237.38. The most recent insider tranaction occured on August, 18th when Director Evan Guillemin sold 3,692 shares worth more than $724,075.04. Insiders at Mesa Laboratories own 5.5 % of the company. Learn More about insider trades at Mesa Laboratories.

Information on this page was last updated on 8/18/2022.

John James Sullivan Insider Trading History at Mesa Laboratories

Transaction DateBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
6/7/2022Sell5,192$207.76$1,078,689.9223,857View SEC Filing Icon  
2/15/2022Sell5,192$259.42$1,346,908.64View SEC Filing Icon  
11/15/2021Sell5,192$308.02$1,599,239.84View SEC Filing Icon  
10/1/2021Sell1,250$304.48$380,600.00View SEC Filing Icon  
8/16/2021Sell5,192$272.16$1,413,054.7228,549View SEC Filing Icon  
8/2/2021Sell1,250$290.47$363,087.50View SEC Filing Icon  
7/1/2021Sell1,250$267.44$334,300.0024,299View SEC Filing Icon  
6/8/2021Sell5,192$258.19$1,340,522.4829,400View SEC Filing Icon  
6/1/2021Sell2,215$251.46$556,983.9024,208View SEC Filing Icon  
5/6/2021Sell200$250.05$50,010.0033,059View SEC Filing Icon  
5/4/2021Sell735$250.14$183,852.9033,159View SEC Filing Icon  
4/5/2021Sell500$250.76$125,380.0057,458View SEC Filing Icon  
3/1/2021Sell1,250$273.94$342,425.0057,958View SEC Filing Icon  
2/1/2021Sell1,250$277.67$347,087.5059,208View SEC Filing Icon  
1/4/2021Sell1,250$280.82$351,025.0060,458View SEC Filing Icon  
12/1/2020Sell1,250$275.22$344,025.0061,708View SEC Filing Icon  
11/11/2020Sell1,250$272.36$340,450.0062,481View SEC Filing Icon  
2/27/2020Sell1,702$256.02$435,746.0472,841View SEC Filing Icon  
2/25/2020Sell8,206$267.09$2,191,740.5477,347View SEC Filing Icon  
6/15/2018Sell12,000$197.02$2,364,240.0074,498View SEC Filing Icon  
2/16/2018Sell4,000$138.00$552,000.0072,248View SEC Filing Icon  
2/21/2017Sell9,078$124.83$1,133,206.7464,278View SEC Filing Icon  
2/13/2017Sell5,922$123.99$734,268.7868,040View SEC Filing Icon  
6/22/2016Sell4,000$121.63$486,520.0066,118View SEC Filing Icon  
11/6/2015Sell2,400$112.99$271,176.0061,393View SEC Filing Icon  
2/25/2014Sell10,000$87.01$870,100.00View SEC Filing Icon  
8/19/2013Sell6,000$64.87$389,220.00View SEC Filing Icon  
8/14/2013Sell6,000$61.92$371,520.00View SEC Filing Icon  
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John James Sullivan Buying and Selling Activity at Mesa Laboratories

This chart shows John James Sullivan's buying and selling at Mesa Laboratories by year and by quarter.

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Mesa Laboratories Company Overview

Mesa Laboratories logo
Mesa Laboratories, Inc. develops, manufactures, and sells life sciences tools and quality control products and services in the United States, Europe, the Asia Pacific, and internationally. The company's Sterilization and Disinfection Control segment manufactures and sells biological, cleaning, and chemical indicators that are used to assess the effectiveness of sterilization and disinfection processes in the hospital, dental, medical device, and pharmaceutical industries. This segment also provides testing and laboratory services primarily to the dental industry. Its Biopharmaceutical Development segment develops, manufactures, and sells automated systems for protein analysis (immunoassays) and peptide synthesis solutions. This segment's solutions include protein analysis comprising analysis equipment, CDs, kits, and buffers; and peptide synthesizers that enables to automate chemically synthesized peptides that are used in the creation of peptide therapies, biomaterials, cosmetics, and general research. The company's Calibration Solutions segment designs, manufactures, and markets quality control and calibration products to measure or calibrate temperature, pressure, pH, humidity, and other such parameters used for health and safety purposes in the hospital, medical device manufacturing, pharmaceutical manufacturing, and various laboratory and healthcare environments. This segment's products include continuous monitoring systems, dialysate meters and consumables, data loggers, gas flow calibration and air sampling equipment, and torque testing systems. Its Clinical Genomics segment develops, manufactures, and sells genetic analysis tools that include MassARRAY system and consumables, including chips, panels, and chemical reagent solutions used by clinical labs to perform genomic clinical testing in several therapeutic areas, such as newborn screenings, pharmacogenetics, and oncology. The company was incorporated in 1982 and is headquartered in Lakewood, Colorado.
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Today's Range

Now: $140.89
Low: $138.50
High: $143.04

50 Day Range

MA: $182.54
Low: $140.89
High: $214.98

2 Week Range

Now: $140.89
Low: $138.50
High: $333.42


51,800 shs

Average Volume

36,568 shs

Market Capitalization

$749.11 million

P/E Ratio


Dividend Yield



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