The current institutional shareholding score of Kirby Corp is 10.00, ranking 1 out of 77 in the Freight & Logistics Services industry. The latest institutional shareholding proportion is 113.41%, representing a quarter-over-quarter increase of 9.97%. The largest institutional shareholder is ETHSX, holding a total of 2.29M shares, representing 4.61% of shares outstanding, with 2304900.00% increase in holdings.