Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 4 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

No open-market trades on record; showing all filings.

DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Feb. 24, 2006 NPKI M 25,000 $4.94 $123,500 0 Direct · Acquired 138.7% (price as of 2026-10-02)
Feb. 24, 2006 NPKI M 25,000 $4.94 $123,500 36,895 Direct +210.17% Acquired 138.7% (price as of 2026-10-02)
June 8, 2005 NPKI A 20,000 · · 20,000 Direct · Acquired (price as of 2026-10-02)
June 8, 2005 NPKI A 20,000 $6.27 $125,400 20,000 Direct · Acquired 88.0% (price as of 2026-10-02)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Feb. 24, 2006 NPKI Employee Stock Options, (right to buy) Common Stock (25,000) $4.94 March 1, 2006 25,000 Acquired
June 8, 2005 NPKI Employee Stock Options (right to buy) Common Stock (20,000) $6.27 June 8, 2012 20,000 Acquired
June 8, 2005 NPKI Stock Options (right to buy) Options (20,000) $6.27 June 8, 2012 20,000 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).