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Gerald M Blumenstock

EVP, Research, Dev. & Eng.

Gerald M Blumenstock (EVP, Research, Dev. & Eng.) filed 3 Form 4 reports in the trailing twelve months (0 purchases, 3 sales), most often in ACLS. The largest single filing was $271K of ACLS (3,034 sh × $89.46, as filed), executed Dec 11 2025. Data as of Nov 8 2026.

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Return, ttmiAverage return per filing, trailing twelve months
–
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
–
returns measure stock purchases only
Filings, ttm
3
0 buys · 3 sells
Median delay
–
measured on stock purchases
Volume, ttmiDollar value disclosed in the trailing twelve months
$613K
shares × price, as filed
Last traded
May 21
Filed May 22
Open performance→
Volume by month
$342K$171K$0Dec 2024Jun 2025Dec 2025Jun 2026Dec 2025 · sells $271KMay 2026 · sells $342K
Buys $0 Sells $613K

Shares × price, as filed · by filing month · past 24 months

Most traded names
ACLS ACLS 0 buys · 3 sells 3 filings
Recent filings
ACLSSALE AXCELIS TECHNOLOGIES INC View filing → $177K
1,161 sh × $152.70
Exec May 21
Filed May 22 · 5:30 PM ET ACLSSALE AXCELIS TECHNOLOGIES INC View filing → $165K
1,015 sh × $162.32
Exec May 14
Filed May 15 · 5:30 PM ET ACLSSALE AXCELIS TECHNOLOGIES INC View filing → $271K
3,034 sh × $89.46
Exec Dec 11 2025
Filed Dec 12 2025 · 5:30 PM ET