MARINUS PHARMACEUTICALS INC

CUSIP: 56854Q101 Class: COM

PRICE T ROWE ASSOCIATES INC /MD/'s Holding History (CIK: 0000080255)

Note: Option positions (PUT/CALL) are excluded.

Q3 2018
Shares 408,658 Value ($000) $4,087 Avg Close — Range —
Q4 2017
Shares 416,300 Value ($000) $3,397 Avg Close — Range —