CLIFFS NAT RES INC

CUSIP: 18683K101 Class: COMMON STOCK

TWO SIGMA SECURITIES, LLC's Holding History (CIK: 0001450144)

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

Q1 2017
Shares 31,905 Value ($000) $262 Avg Close — Range —
Q3 2016
Shares 12,760 Value ($000) $75 Avg Close — Range —
Q4 2015
Shares 11,210 Value ($000) $18 Avg Close — Range —