Align Technology, Inc.

CUSIP: 162551014 Class: COM

Palo Alto Investors LP's Holding History (CIK: 0001306923)

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

Q4 2013
Shares 7,788 Value ($000) $445 Avg Close — Range —
Q3 2013
Shares 5,088 Value ($000) $245 Avg Close — Range —