Helena Revoredo, which controls Prosegur, filed a takeover bid on Wednesday to buy 15% of the shares of the Spanish private security services group, after which its shares rose 22%.

Revoredo, which directly owns 59.8% of Prosegur, offered to pay 1.83 euros ($1.99) in cash per share, a 27% premium over Tuesday's price, Gubel, an investment company it owns, said in a statement to the CNMV.

Revoredo will open the offer within a month.

The maximum total amount to be paid is 149.6 million euros.

(1 U.S. dollar = 0.9217 euros)

(Report by Tiago Brandão and Matteo Allievi; edited in Spanish by Benjamín Mejías Valencia)