Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 5 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

5 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Dec. 13, 2006 NPKI S 45,000 $7.01 $315,450 905,292 Direct -4.74% Disposed 71.3% (price as of 2026-10-06)
Oct. 18, 2005 NPKI P 10,000 $7.00 $70,000 950,292 Direct +1.06% Acquired 71.6% (price as of 2026-10-06)
Oct. 17, 2005 NPKI P 20,000 $7.07 $141,400 940,292 Direct +2.17% Acquired 69.9% (price as of 2026-10-06)
May 3, 2005 NPKI P 40,000 $6.09 $243,600 890,292 Direct +4.70% Acquired 97.2% (price as of 2026-10-06)
March 4, 2005 NPKI S 10,000 $6.45 $64,500 850,292 Direct -1.16% Disposed 86.2% (price as of 2026-10-06)

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
Dec. 28, 2006 NPKI Stock Options (right to buy) Common Stock (10,000) $7.17 Dec. 28, 2016 10,000 Acquired
June 8, 2005 NPKI Stock Options (right to buy) Common Stock (10,000) $6.27 June 8, 2012 10,000 Acquired
June 8, 2005 NPKI Stock Options (right to buy) Options (10,000) $6.27 June 8, 2012 10,000 Acquired
March 4, 2005 NPKI Option to Purchase Common Stock (10,000) $3.81 Nov. 2, 2005 10,000 Acquired

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