GULFMARK OFFSHORE INC

CUSIP: 402629505 Class: COM

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

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

Q3 2018
Shares 42,931 Value ($000) $1,601 Avg Close — Range —
Q2 2018
Shares 38,742 Value ($000) $1,298 Avg Close — Range —