Schreiner James Alan sold ~$854K in MKSI stock
MKSI (MKSI) · EVP & COO · Data via SEC EDGAR Form 4
Price Performance · 10 days before → 90 days after trade
▲ = insider buy date
Trade Details · Public SEC Filing
Insider
Schreiner James Alan
Role
EVP & COO
Transaction
Open-Market Sale
Approx. Value
~$854K
Trade Date
Jun 12, 2026
Company
MKSI
Ticker
MKSISource
SEC EDGAR Form 4
Why This Trade Stands Out
Strong conviction signal
Scored above average across multiple factors. Roughly 15% of insider trades qualify as Strong.
~$854K sale
A significant position. Insiders who invest $500K+ of their own money typically have strong views on their company's near-term outlook.
EVP & COO
Senior executives have visibility into their division's pipeline and company health. Their trades carry weight because they understand the business from the inside.
How good is Schreiner James Alan at picking stocks?
Full track record: win rate, average return, and performance vs S&P 500
On June 12, 2026, Schreiner James Alan — EVP & COO of MKSI — filed a Form 4 with the SEC disclosing an open-market sale of approximately ~$854K in MKSI (MKSI) stock.
Under Section 16(a) of the Securities Exchange Act of 1934, corporate insiders must report all open-market stock transactions to the SEC within two business days. These filings — known as Form 4s — are publicly available on the SEC's EDGAR database. VeritySignals filters and scores the full Form 4 stream to surface high-conviction signals like this one.
VeritySignals Conviction Analysis
Full Conviction Analysis
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All data sourced from publicly available SEC Form 4 filings via EDGAR · Not financial advice · Past performance does not guarantee future results.
At a Glance
More MKSI Insider Activity
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Donahue Joseph B
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Burke Kathleen Flaherty
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Taranto Eric Robert
May 11, 2026
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How to Read Insider Trades
What is this?
When company executives buy or sell their own stock, they must report it to the SEC within 2 days. These public filings reveal what the people who know the company best are doing with their own money.
Why does it matter?
Insiders can sell for many reasons (taxes, diversification, expenses), but they generally only buy for one: they think the stock is going up. That's why insider purchases are more predictive than sales.
What makes a trade "strong"?
We score trades on 15+ factors: the insider's role (CEO > director), trade size relative to their salary, whether other insiders also bought (clusters), and historical accuracy of the insider.
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