SEACOR MARINE HLDGS INC

Ticker: SMHI CUSIP: 78413P101 Class: Common Stock

Thomas J. Herzfeld Advisors, Inc.'s Holding History (CIK: 0001509510)

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

Q4 2017

Shares 2,010 Value ($000) $24 Avg Close $13.17 Range $11.66 - $16.07

Q3 2017

Shares 2,010 Value ($000) $31 Avg Close $14.55 Range $11.93 - $20.48

Q2 2017

Shares 2,010 Value ($000) $41 Avg Close $19.15 Range $16.19 - $30.39

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	2,010	$24	$13.17	$11.66 - $16.07
Q3 2017	2,010	$31	$14.55	$11.93 - $20.48
Q2 2017	2,010	$41	$19.15	$16.19 - $30.39