PROTO LABS INC

Ticker: PRLB CUSIP: 743713109 Class: EQTY

Spark Investment Management LLC's Holding History (CIK: 0001554871)

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

Q3 2017
Shares 14,900 Value ($000) $1,196 Avg Close $72.28 Range $66.85 - $80.40