"share transactions" is correct and usable in written English.
You can use it when referring to people buying and selling stock shares. For example: "The company monitored its shareholders' share transactions over the past year."
What they do is legal and can improve liquidity in share transactions.
Stockbrokers and private investors are hoping for a reduction, or abolition, in duty on share transactions.
Labour has plans for a bankers' bonus tax and would tighten up the regime on stamp duty for share transactions.
Defenders of the tax point out that Britain already has a stamp duty on share transactions and that hasn't exactly crippled the City.
Meanwhile, the Thai Securities Exchange Commission says it has begun its own investigation into unusual share transactions, including orders placed by brokers in Hong Kong.
Two years ago it was estimated that high-frequency trading accounted for up to 70% of all share transactions in New York.
Mr Kariyawasam resigned in May over a questionable share transaction.
A note in Sogaz's 2013 accounts, published in April 2014, mentions Rossiya losing control through a share transaction, but gives no reason for it.
Her husband, Pradeep Kariyawasam, is being investigated over a questionable share transaction effected while he was chairman of the state-owned National Savings Bank.
Old-fashioned, full-service brokers, such as Cazenove, get a "traditional" commission on each share transaction, for a bundle of services that include research as well as the execution of the transaction.
In a joint statement, the companies said they'll share transaction revenue for sales generated.
