Blumenstock Gerald M

Insider

EVP, Research, Dev. & Eng.

Trades at: ACLS

30D 90D 1Y

Net shares · 365d

-5.2K

0 buy · 5.2K sell

Net value · 365d

-$613.5K

$0 in · $613.5K out

Sentiment · 365d

Net selling

0% buying · 100% selling

Open-market trades · 365d

0 buy · 5.2K sell

Trading track record · all companies

Running net of open-market buys − sells across every company. Tap the line or a marker for details. ▲ buy · ▼ sell.

Transactions · 365d

Open-market Buys Sells All types

ACLS Sell·S
May 21, 26

EVP, Research, Dev. & Eng.

$177.3K

1.2K sh · $152.70

Own -5%
ACLS Sell·S
May 14, 26

EVP, Research, Dev. & Eng.

$164.7K

1.0K sh · $162.32

Own -6%
ACLS Sell·S
Dec 11, 25

EVP, Research, Dev. & Eng.

$271.4K

3.0K sh · $89.46

Own -14%

Date▾	Ticker	Role	Type	Shares	Own Δ	Price	Value
May 21, 2026	ACLS	EVP, Research, Dev. & Eng.	Sell S	1.2K	-5%	$152.70	$177.3K
May 14, 2026	ACLS	EVP, Research, Dev. & Eng.	Sell S	1.0K	-6%	$162.32	$164.7K
Dec 11, 2025	ACLS	EVP, Research, Dev. & Eng.	Sell S	3.0K	-14%	$89.46	$271.4K

Buy Sell Non-market (grant · exercise · gift)

About Blumenstock Gerald M

This profile aggregates every SEC Form 4 insider transaction reported by Blumenstock Gerald M across all companies they trade. Open-market purchases (code P) and sales (code S) are the highest-signal, discretionary trades; grants (A), option exercises (M) and gifts (G) reflect compensation rather than conviction and carry no market price. Figures cover the selected period and update as new filings are ingested.