INTREPID POTASH INC

CUSIP: 46121Y102 Class: COMMON STOCK

STATE OF MICHIGAN RETIREMENT SYSTEM's Holding History (CIK: 0000762152)

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

Q1 2014
Shares 25,900 Value ($000) $400 Avg Close — Range —
Q4 2013
Shares 25,900 Value ($000) $410 Avg Close — Range —
Q3 2013
Shares 25,900 Value ($000) $406 Avg Close — Range —
Q2 2013
Shares 24,700 Value ($000) $471 Avg Close — Range —