Blumenstock Gerald M
EVP, Research, Dev. & Eng.
Blumenstock Gerald M has filed 6 SEC Form 4 filings (9 transaction rows) across 1 company, with disclosures dating back to 2025. 6 of those filings fall inside the rolling window. Most recent filing: Jun 16, 2026.
On the most recent filing, Blumenstock Gerald M is listed as EVP, Research, Dev. & Eng. at AXCELIS TECHNOLOGIES INC. Inside the rolling window, Blumenstock Gerald M reported no open-market purchases and 3 open-market sales totaling $613K in ACLS. The largest disclosed transaction in the window is a sale of 3,034 ACLS shares on Dec 11, 2025, worth $271K.
Companies traded
Other insiders at ACLS
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$613K
reported sales (SEC code S)
Companies
1
in the rolling window
Frequently asked questions
How many SEC Form 4 filings has Blumenstock Gerald M made?
Blumenstock Gerald M has filed 6 SEC Form 4 filings (9 transaction rows) across 1 company since 2025.
Which companies does Blumenstock Gerald M trade?
Blumenstock Gerald M has filed SEC Form 4 disclosures for 1 company, including ACLS.
When was Blumenstock Gerald M's most recent SEC Form 4 filing?
Blumenstock Gerald M's most recent SEC Form 4 filing on Tracefour is dated Jun 16, 2026.
What is Blumenstock Gerald M's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Blumenstock Gerald M is listed as EVP, Research, Dev. & Eng..
What is Blumenstock Gerald M's total buy and sell value in the current window?
Inside the rolling retention window, Blumenstock Gerald M bought $0 and sold $613K based on SEC Form 4 filings.
What was Blumenstock Gerald M's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 3,034 ACLS shares on 2025-12-11, worth $271K, per SEC Form 4 filings.