NATIONAL PRESTO INDS INC

Ticker: NPK CUSIP: 637215104 Class: COM

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

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

Q4 2017
Shares 756 Value ($000) $75 Avg Close $109.11 Range $95.50 - $121.40