Goldman Sachs Asset Management has built up a 17.7% slice of the MLP, which listed in the US in August.
Its 2,330,485 units are worth almost $58m based on the last trade in New York yesterday.
Neuberger Berman, which is also a significant owner of Teekay LNG shares, has now disclosed a major holding in Hoegh LNG Partners.
The fund manager has amassed 1,452,275 units, giving it an 11.04%