MARINUS PHARMACEUTICALS INC

CUSIP: 56854Q101 Class: COM

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q2 2020
Shares 36,741 Value ($000) $93 Avg Close — Range —
Q1 2020
Shares 63,467 Value ($000) $129 Avg Close — Range —
Q4 2019
Shares 65,859 Value ($000) $142 Avg Close — Range —
Q3 2019
Shares 153,931 Value ($000) $237 Avg Close — Range —
Q2 2019
Shares 121,389 Value ($000) $504 Avg Close — Range —
Q1 2019
Shares 324,698 Value ($000) $1,357 Avg Close — Range —
Q4 2018
Shares 237,677 Value ($000) $682 Avg Close — Range —
Q3 2018
Shares 96,405 Value ($000) $964 Avg Close — Range —
Q1 2018
Shares 122,744 Value ($000) $469 Avg Close — Range —
Q4 2017
Shares 4,780 Value ($000) $39 Avg Close — Range —