PROTO LABS INC

Ticker: PRLB CUSIP: 743713109 Class: EQTY

Alyeska Investment Group, L.P.'s Holding History (CIK: 0001453072)

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

Q1 2014
Shares 10,046 Value ($000) $680 Avg Close $74.38 Range $62.09 - $84.00
Q4 2013
Shares 50,190 Value ($000) $3,573 Avg Close $77.51 Range $65.52 - $89.97