Griffith Joseph H. IV
Chief Financial Officer
Griffith Joseph H. IV has filed 6 SEC Form 4 filings (11 transaction rows) across 1 company, with disclosures dating back to 2025. 4 of those filings fall inside the rolling window. Most recent filing: Oct 8, 2026.
On the most recent filing, Griffith Joseph H. IV is listed as Chief Financial Officer at 908 Devices Inc. Inside the rolling window, Griffith Joseph H. IV reported no open-market purchases and 4 open-market sales totaling $397K in MASS. The largest disclosed transaction in the window is a sale of 23,175 MASS shares on Feb 2, 2026, worth $143K.
Companies traded
Other insiders at MASS
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$397K
reported sales (SEC code S)
Companies
1
in the rolling window
Earlier trades
Open-market purchases and sales filed before the rolling 365-day window, kept from the original Form 4 filings.
Frequently asked questions
How many SEC Form 4 filings has Griffith Joseph H. IV made?
Griffith Joseph H. IV has filed 6 SEC Form 4 filings (11 transaction rows) across 1 company since 2025.
Which companies does Griffith Joseph H. IV trade?
Griffith Joseph H. IV has filed SEC Form 4 disclosures for 1 company, including MASS.
When was Griffith Joseph H. IV's most recent SEC Form 4 filing?
Griffith Joseph H. IV's most recent SEC Form 4 filing on Tracefour is dated Oct 8, 2026.
What is Griffith Joseph H. IV's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Griffith Joseph H. IV is listed as Chief Financial Officer.
What is Griffith Joseph H. IV's total buy and sell value in the current window?
Inside the rolling retention window, Griffith Joseph H. IV bought $0 and sold $397K based on SEC Form 4 filings.
What was Griffith Joseph H. IV's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 23,175 MASS shares on 2026-02-02, worth $143K, per SEC Form 4 filings.