PRONAI THERAPEUTICS INC

CUSIP: 74346L101 Class: COM

Swiss National Bank's Holding History (CIK: 0001582202)

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

Q1 2016
Shares 31,538 Value ($000) $206 Avg Close — Range —
Q4 2015
Shares 25,738 Value ($000) $387 Avg Close — Range —