ALPHATEC HOLDINGS INC

CUSIP: 02081G102 Class: CMN

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

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

Q1 2014
Shares 111,596 Value ($000) $167 Avg Close — Range —
Q4 2013
Shares 111,596 Value ($000) $224 Avg Close — Range —
Q3 2013
Shares 111,596 Value ($000) $220 Avg Close — Range —
Q2 2013
Shares 108,029 Value ($000) $221 Avg Close — Range —
Q1 2013
Shares 94,805 Value ($000) $200 Avg Close — Range —