The Economic Times

In 1935, Grace Groner, a secretary, invested $180 in her employer Abbott; 75 years later, it had grown to about $7 million

Grace Groner made a $180 investment in Abbott Laboratories in 1935 while working as a secretary. She held onto the shares for about 75 years, allowing her investment to grow significantly. Upon her death in 2010, her estate was valued at approximately $7 million. Groner lived a modest lifestyle despite her wealth and chose not to indulge in luxuries.