NUVEEN PFD & INCOME OPPORTUN

CUSIP: 67073B106 Class: COM

Columbia Asset Management's Holding History (CIK: 0001585047)

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

Q2 2016
Shares 10,000 Value ($000) $100 Avg Close — Range —
Q1 2016
Shares 10,000 Value ($000) $93 Avg Close — Range —
Q4 2015
Shares 10,000 Value ($000) $91 Avg Close — Range —
Q2 2015
Shares 10,000 Value ($000) $91 Avg Close — Range —
Q1 2015
Shares 10,000 Value ($000) $95 Avg Close — Range —
Q4 2014
Shares 10,000 Value ($000) $96 Avg Close — Range —
Q3 2014
Shares 10,000 Value ($000) $92 Avg Close — Range —
Q2 2014
Shares 10,000 Value ($000) $97 Avg Close — Range —