SYNTHETIC BIOLOGICS INC

CUSIP: 87164U102 Class: COM

MSD Partners, L.P.'s Holding History (CIK: 0001514334)

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

Q2 2018
Shares 4,118,402 Value ($000) $984 Avg Close — Range —
Q1 2018
Shares 4,118,402 Value ($000) $1,311 Avg Close — Range —
Q4 2017
Shares 4,118,402 Value ($000) $2,092 Avg Close — Range —
Q3 2017
Shares 4,118,402 Value ($000) $3,843 Avg Close — Range —
Q2 2017
Shares 4,118,402 Value ($000) $2,329 Avg Close — Range —
Q1 2017
Shares 4,118,402 Value ($000) $2,597 Avg Close — Range —
Q4 2016
Shares 4,118,402 Value ($000) $3,141 Avg Close — Range —
Q3 2016
Shares 3,118,402 Value ($000) $5,364 Avg Close — Range —
Q2 2016
Shares 3,118,402 Value ($000) $5,613 Avg Close — Range —
Q1 2016
Shares 4,208,500 Value ($000) $9,932 Avg Close — Range —
Q4 2015
Shares 4,208,500 Value ($000) $9,637 Avg Close — Range —
Q3 2015
Shares 4,208,500 Value ($000) $9,553 Avg Close — Range —
Q2 2015
Shares 3,583,500 Value ($000) $10,213 Avg Close — Range —
Q1 2015
Shares 3,583,500 Value ($000) $7,848 Avg Close — Range —
Q4 2014
Shares 3,583,500 Value ($000) $5,232 Avg Close — Range —
Q3 2014
Shares 2,675,000 Value ($000) $4,762 Avg Close — Range —
Q2 2014
Shares 2,675,000 Value ($000) $4,601 Avg Close — Range —
Q1 2014
Shares 2,675,000 Value ($000) $6,875 Avg Close — Range —
Q4 2013
Shares 2,675,000 Value ($000) $4,093 Avg Close — Range —
Q3 2013
Shares 2,100,000 Value ($000) $3,528 Avg Close — Range —
Q2 2013
Shares 2,100,000 Value ($000) $3,612 Avg Close — Range —