However, the exact date of share purchased by foreign institutional investors (FIIs) could not be ascertained.
Infosys new chief executive officer (CEO) and managing director Vishal Sikka took charge of the company in August.
Cumulative FII holdings in the company rose to 42.67 percent in the July-September quarter this year from 39.93 percent in three months ended September last year, according to data from stock exchanges.
This is the highest level of FII holding in the country's second largest software services firm since March 2005, when their stake in Infosys stood at 42.87 percent.
In the April-June quarter of 2014, FIIs' holding in Infosys stood at 41.58 percent.
The rise in overseas shareholding of Infosys coincides with overall bullishness shown by foreign entities in the Indian stock market. During the July-September quarter, Infosys shares surged by more than 14 percent, as against 4.78 percent gain in BSE's benchmark Sensex.
In the same period, FIIs invested a staggering sum of over Rs 23,000 crore in the Indian equities on the
back of ongoing reform initiatives taken by the Centre.
Sikka, the first outsider as well as not part of the co-founder’s club to lead the Bangalore-based firm, was the head of technology and innovation department at German software giant SAP.
Infosys mentor N R Narayana Murthy stepped down in June, four years before his tenure was to end. He was brought back to head the IT major in June last year, following quarters of laggard performance.
Besides, the overall holding of institutional investors also rose to 57.15 percent during July-September period of this year from 55.56 percent at the end of June 30, 2014, mostly on account of additional share purchases by FIIs.
The domestic institutional holdings in the company stood at 14.48 percent as on September 30, 2014, up from 14.08 percent in April-June quarter of 2014.