Johnny Guerry, Clover Partners LP and related entities disclosed beneficial ownership of 617,773 SI Financial Group Inc. shares, according to a Schedule 13D filed March 29.

The shares represent a 5.1% stake in the company headquartered in Willimantic, Conn., based on its 12,203,593 outstanding common shares as of March 10.

The investor group bought a total of 249,152 SI Financial common shares at prices ranging from $13.9383 to $15.0118 in various open-market transactions from Jan. 23 to March 24.