SYNTHETIC BIOLOGICS INC

CUSIP: 87164U102 Class: COM

TWO SIGMA SECURITIES, LLC's Holding History (CIK: 0001450144)

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

Q2 2018
Shares 57,666 Value ($000) $14 Avg Close — Range —
Q1 2018
Shares 24,243 Value ($000) $8 Avg Close — Range —
Q4 2017
Shares 76,693 Value ($000) $39 Avg Close — Range —
Q3 2017
Shares 32,498 Value ($000) $30 Avg Close — Range —
Q4 2016
Shares 30,159 Value ($000) $23 Avg Close — Range —
Q1 2016
Shares 10,754 Value ($000) $25 Avg Close — Range —