THRESHOLD PHARMACEUTICAL INC

CUSIP: 885807206 Class: CMN

ALLIANCEBERNSTEIN L.P.'s Holding History (CIK: 0001109448)

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

Q1 2016
Shares 43,500 Value ($000) $20 Avg Close — Range —
Q4 2015
Shares 71,000 Value ($000) $34 Avg Close — Range —
Q3 2015
Shares 71,000 Value ($000) $289 Avg Close — Range —
Q2 2015
Shares 71,000 Value ($000) $287 Avg Close — Range —
Q1 2015
Shares 61,200 Value ($000) $248 Avg Close — Range —
Q4 2014
Shares 53,800 Value ($000) $171 Avg Close — Range —
Q3 2014
Shares 53,800 Value ($000) $194 Avg Close — Range —
Q2 2014
Shares 53,800 Value ($000) $213 Avg Close — Range —
Q1 2014
Shares 57,055 Value ($000) $272 Avg Close — Range —
Q4 2013
Shares 61,656 Value ($000) $288 Avg Close — Range —
Q3 2013
Shares 76,402 Value ($000) $355 Avg Close — Range —
Q2 2013
Shares 82,154 Value ($000) $432 Avg Close — Range —