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Tracking congressional stock trades from public STOCK Act Periodic Transaction Reports (PTRs) filed by members of the US House and Senate.

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© 2026 Congress Stock Tracker. Data from public STOCK Act filings.For informational purposes only. Not financial advice.
Stocks
Vaisala Oyj

Vaisala OyjVAIAF

OTCIndustrialsScientific & Technical Instruments$51.35+4.34%

Price as of Mar 15, 5:12 PM EDT · delayed, not real-time

Specializing in environmental and industrial measurement technology, this Finnish company provides weather monitoring, renewable energy optimization, and industrial condition tracking solutions. Investors monitor Vaisala for its exposure to climate tech and industrial IoT markets, where it holds niche leadership positions.

Market Cap: $1.9B52W Range: $47.27 – $52.75

Congressional Interest in Vaisala Oyj (VAIAF)

1 member of Congress has disclosed 2 trades in Vaisala Oyj (VAIAF), a Industrials company. The buy/sell breakdown shows 1 purchase versus 1 sale. All data is sourced from STOCK Act periodic transaction reports filed with Congress.

Total Disclosures
2
Unique Politicians
1
Buys
1
Sells
1

Who in Congress Is Trading VAIAF?

DatePoliticianTypeAmountSecurity
2021-11-18PETER WELCHsell$15K – $50KStock
2018-07-16PETER WELCHbuy$1K – $15KStock
PETER WELCHsell
2021-11-18$15K – $50K
Stock
PETER WELCHbuy
2018-07-16$1K – $15K
Stock

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