Sean Wirtjes Biography and Net Worth

CFO of Rapid Micro Biosystems

Sean Wirtjes has over 30 years of broad financial experience in the healthcare and technology industries. Most recently, he served as Vice President, Finance and Controller of Asia Pacific, Middle East and Africa (AMEA) for Boston Scientific, a manufacturer of medical devices. In this role, he led all aspects of financial management for the AMEA region, as well as providing regional oversight for the strategic pricing, reimbursement, supply chain, and business development functions.

Previously he served as Vice President of Investor Relations at Boston Scientific, in progressive roles at Varian, Inc. including Vice President and Controller and Vice President, Finance and Treasurer, and as Corporate Controller at Quova. He began his career with PricewaterhouseCoopers, serving emerging, high-growth clients across the healthcare and technology industries.

Mr. Wirtjes holds a BS in Accounting from the Carroll School of Management at Boston College. He is a Certified Public Accountant and a member of Financial Executives International (FEI) and the Association of Financial Professionals (AFP).

What is Sean M. Wirtjes' net worth?: The estimated net worth of Sean M. Wirtjes is at least $614.59 thousand as of March 11th, 2026. Mr. Wirtjes owns 556,194 shares of Rapid Micro Biosystems stock worth more than $614,594 as of September 23rd. This net worth evaluation does not reflect any other assets that Mr. Wirtjes may own. Learn More about Sean M. Wirtjes' net worth.
How do I contact Sean M. Wirtjes?: The corporate mailing address for Mr. Wirtjes and other Rapid Micro Biosystems executives is 25 Hartwell Avenue, Lexington, MA, 02421. Rapid Micro Biosystems can also be reached via phone at 978-349-3200 and via email at [email protected]. Learn More on Sean M. Wirtjes' contact information.
Has Sean M. Wirtjes been buying or selling shares of Rapid Micro Biosystems?: Sean M. Wirtjes has not been actively trading shares of Rapid Micro Biosystems during the last ninety days. Most recently, Sean M. Wirtjes sold 7,480 shares of the business's stock in a transaction on Wednesday, March 11th. The shares were sold at an average price of $4.32, for a transaction totalling $32,313.60. Following the completion of the sale, the chief financial officer now directly owns 556,194 shares of the company's stock, valued at $2,402,758.08. Learn More on Sean M. Wirtjes' trading history.
Who are Rapid Micro Biosystems' active insiders?: Rapid Micro Biosystems' insider roster includes Melinda Litherland (Director), Robert Spignesi, Jr. (President and CEO), and Sean Wirtjes (CFO). Learn More on Rapid Micro Biosystems' active insiders.
Are insiders buying or selling shares of Rapid Micro Biosystems?: In the last twelve months, insiders at the sold shares 13 times. They sold a total of 249,705 shares worth more than $1,021,363.85. The most recent insider tranaction occured on March, 11th when COO John J Addington Wilson sold 9,603 shares worth more than $41,484.96. Insiders at Rapid Micro Biosystems own 12.7% of the company. Learn More about insider trades at Rapid Micro Biosystems.
Information on this page was last updated on 3/11/2026.

Sean M. Wirtjes Insider Trading History at Rapid Micro Biosystems

Transaction Date	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
3/11/2026	Sell	7,480	$4.32	$32,313.60	556,194
2/20/2026	Sell	17,254	$3.92	$67,635.68	563,674
2/9/2026	Sell	6,027	$3.78	$22,782.06	483,928
8/7/2024	Buy	10,000	$0.78	$7,800.00	348,157
9/6/2023	Buy	10,000	$0.99	$9,900.00	285,651

Sean M. Wirtjes Buying and Selling Activity at Rapid Micro Biosystems

Rapid Micro Biosystems Company Overview

Rapid Micro Biosystems, Inc., a life sciences technology company, provides products for the detection of microbial contamination in the manufacture of pharmaceutical, medical devices, and personal care products in the United States, Germany, Switzerland, Japan, and internationally. The company offers Growth Direct platform, which includes Growth Direct system, proprietary consumables, lab information management system connection software, and customer support and validation services. Its platform automates and modernizes the manual microbial quality control (MQC) testing workflows for therapeutic modalities, such as biologics, vaccines, cell and gene therapies, and sterile injectables. The company also provides onsite technical training services. Its solutions are used in environmental monitoring, water, bioburden, and sterility release testing applications. In addition, the company offers RMBNucleus software for the Growth Direct system; RMBNucleus Mold Alarm signals at the first sign of mold detection; RMBNucleus Central Manager portal streamlines coordination of multiple instruments; and Growth Direct LIMS connection software. Rapid Micro Biosystems, Inc. was formerly known as Genomic Profiling Systems, Inc. and changed its name to Rapid Micro Biosystems, Inc. in January 2007. The company was incorporated in 2006 and is headquartered in Lowell, Massachusetts.

Today's Range

Now: $1.11

$1.10

$1.19

50 Day Range

MA: $1.66

$1.09

$2.21

2 Week Range

Now: $1.11

$1.09

$4.94

Volume

173,229 shs

Average Volume

234,189 shs

Market Capitalization

$55.68 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

1.43