** HR services platform Insperity's NSP.N shares jump 11.4% to $25.30 and poised for best day in over a year on Fri after its Chairman and CEO Paul Sarvadi disclosed buying stock this week

** NSP shares tracking steepest pct gain since Feb 2025 and hit one-month high

** Sarvadi purchased 201,987 shares at avg price of about $23.20 worth approx $4.7 mln between Tues and Thurs, according to an SEC filing

** Following his direct and indirect purchases made through a partnership, Sarvadi's total beneficial ownership is now ~1.47 mln shares

** Insider buying is often viewed as a signal of confidence in a firm's business prospects

** Kingwood, Texas-based NSP has ~37.7 mln shares outstanding for roughly $950 mln current market cap

** Despite gain on the session, stock off ~35% YTD and ~70% over the past 12 months

** Of 5 analysts covering the stock, 1 rates "buy", 3 rate "hold" and 1 recommends "sell"; median PT $36, per LSEG

(Lance Tupper is a Reuters market analyst. The views expressed are his own)

((lance.tupper@tr.com 1-646-279-6380))