NAVIDEA BIOPHARMACEUTICALS I

CUSIP: 63937X103 Class: COM

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

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

Q1 2016
Shares 324,140 Value ($000) $306 Avg Close — Range —
Q4 2015
Shares 279,278 Value ($000) $371 Avg Close — Range —
Q3 2015
Shares 274,392 Value ($000) $626 Avg Close — Range —
Q2 2015
Shares 275,292 Value ($000) $443 Avg Close — Range —
Q1 2015
Shares 274,016 Value ($000) $436 Avg Close — Range —
Q4 2014
Shares 278,016 Value ($000) $525 Avg Close — Range —
Q3 2014
Shares 276,827 Value ($000) $365 Avg Close — Range —
Q2 2014
Shares 275,147 Value ($000) $407 Avg Close — Range —
Q1 2014
Shares 216,447 Value ($000) $400 Avg Close — Range —
Q4 2013
Shares 216,447 Value ($000) $448 Avg Close — Range —
Q3 2013
Shares 215,247 Value ($000) $570 Avg Close — Range —
Q2 2013
Shares 208,395 Value ($000) $556 Avg Close — Range —
Q1 2013
Shares 185,355 Value ($000) $502 Avg Close — Range —