David C Anderson

CIK 1363422 · View on SEC EDGAR ↗

Insider

First SEC filing: May 7, 2018 · Latest: May 7, 2018

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Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 23 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

23 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
May 3, 2018 NPKI S 20,000 $10.26 $205,200 150,841 Direct -11.71% Disposed 35.2% (price as of 2026-08-20)
May 3, 2018 NPKI S 20,000 $10.26 $205,200 150,841 Direct -11.71% Disposed 35.2% (price as of 2026-08-20)
Nov. 14, 2017 NPKI S 17,000 $8.91 $151,470 170,841 Direct -9.05% Disposed 55.7% (price as of 2026-08-20)
June 2, 2017 NPKI S 15,124 $7.35 $111,161 187,841 Direct -7.45% Disposed 88.7% (price as of 2026-08-20)
Aug. 13, 2014 NPKI S 5,000 $12.55 $62,750 122,932 Direct -3.91% Disposed 10.5% (price as of 2026-08-20)
May 13, 2013 NPKI S 1,000 $11.10 $11,100 119,785 Direct -0.83% Disposed 25.0% (price as of 2026-08-20)
May 13, 2013 NPKI S 700 $11.14 $7,798 119,085 Direct -0.58% Disposed 24.5% (price as of 2026-08-20)
May 13, 2013 NPKI S 2,503 $11.15 $27,908 116,582 Direct -2.10% Disposed 24.4% (price as of 2026-08-20)
May 13, 2013 NPKI S 1,599 $11.20 $17,909 114,983 Direct -1.37% Disposed 23.8% (price as of 2026-08-20)
May 13, 2013 NPKI S 1,000 $11.20 $11,200 113,983 Direct -0.87% Disposed 23.8% (price as of 2026-08-20)
May 13, 2013 NPKI S 401 $11.21 $4,495 113,582 Direct -0.35% Disposed 23.7% (price as of 2026-08-20)
May 13, 2013 NPKI S 400 $11.28 $4,512 113,182 Direct -0.35% Disposed 23.0% (price as of 2026-08-20)
May 13, 2013 NPKI S 1,600 $11.27 $18,032 111,582 Direct -1.41% Disposed 23.1% (price as of 2026-08-20)
May 13, 2013 NPKI S 797 $11.16 $8,895 110,785 Direct -0.71% Disposed 24.3% (price as of 2026-08-20)
July 31, 2012 NPKI S 2,000 $6.82 $13,640 110,785 Direct -1.77% Disposed 103.4% (price as of 2026-08-20)
July 31, 2012 NPKI S 1,020 $6.82 $6,956 112,785 Direct -0.90% Disposed 103.4% (price as of 2026-08-20)
July 31, 2012 NPKI S 100 $6.82 $682 113,805 Direct -0.09% Disposed 103.4% (price as of 2026-08-20)
July 31, 2012 NPKI S 700 $6.83 $4,781 113,905 Direct -0.61% Disposed 103.1% (price as of 2026-08-20)
July 31, 2012 NPKI S 100 $6.84 $684 114,605 Direct -0.09% Disposed 102.8% (price as of 2026-08-20)
July 31, 2012 NPKI S 700 $6.84 $4,788 114,705 Direct -0.61% Disposed 102.8% (price as of 2026-08-20)
July 31, 2012 NPKI S 2,200 $6.85 $15,070 115,405 Direct -1.87% Disposed 102.5% (price as of 2026-08-20)
July 31, 2012 NPKI S 100 $6.85 $685 117,605 Direct -0.08% Disposed 102.5% (price as of 2026-08-20)
July 31, 2012 NPKI S 300 $6.86 $2,058 117,705 Direct -0.25% Disposed 102.2% (price as of 2026-08-20)
July 31, 2012 NPKI S 200 $6.89 $1,378 118,005 Direct -0.17% Disposed 101.3% (price as of 2026-08-20)
July 31, 2012 NPKI S 900 $6.88 $6,192 118,205 Direct -0.76% Disposed 101.6% (price as of 2026-08-20)
July 31, 2012 NPKI S 700 $6.88 $4,816 119,105 Direct -0.58% Disposed 101.6% (price as of 2026-08-20)
July 31, 2012 NPKI S 500 $6.87 $3,435 119,805 Direct -0.42% Disposed 101.9% (price as of 2026-08-20)
July 31, 2012 NPKI S 1,000 $6.86 $6,860 120,305 Direct -0.82% Disposed 102.2% (price as of 2026-08-20)
July 31, 2012 NPKI S 1,800 $6.86 $12,348 121,305 Direct -1.46% Disposed 102.2% (price as of 2026-08-20)
Nov. 3, 2011 NPKI S 100 $9.12 $912 99,682 Direct -0.10% Disposed 52.1% (price as of 2026-08-20)
Nov. 3, 2011 NPKI S 7,900 $9.11 $71,969 99,782 Direct -7.34% Disposed 52.3% (price as of 2026-08-20)
Nov. 1, 2011 NPKI S 700 $8.37 $5,859 99,682 Direct -0.70% Disposed 65.7% (price as of 2026-08-20)
Nov. 1, 2011 NPKI S 100 $8.36 $836 100,382 Direct -0.10% Disposed 65.9% (price as of 2026-08-20)
Nov. 1, 2011 NPKI S 100 $8.36 $836 100,482 Direct -0.10% Disposed 65.9% (price as of 2026-08-20)
Nov. 1, 2011 NPKI S 100 $8.36 $836 100,582 Direct -0.10% Disposed 65.9% (price as of 2026-08-20)
Nov. 1, 2011 NPKI S 1,000 $8.36 $8,360 100,682 Direct -0.98% Disposed 65.9% (price as of 2026-08-20)
June 11, 2010 NPKI S 100 $6.20 $620 65,991 Direct -0.15% Disposed 123.7% (price as of 2026-08-20)
June 11, 2010 NPKI S 3,667 $6.20 $22,735 66,091 Direct -5.26% Disposed 123.7% (price as of 2026-08-20)
June 11, 2010 NPKI S 100 $6.20 $620 69,758 Direct -0.14% Disposed 123.7% (price as of 2026-08-20)
June 11, 2010 NPKI S 400 $6.20 $2,480 69,858 Direct -0.57% Disposed 123.7% (price as of 2026-08-20)
June 11, 2010 NPKI S 7,600 $6.20 $47,120 70,258 Direct -9.76% Disposed 123.7% (price as of 2026-08-20)
June 11, 2010 NPKI S 100 $6.20 $620 77,858 Direct -0.13% Disposed 123.7% (price as of 2026-08-20)
Nov. 7, 2007 NPKI P 6,000 $5.44 $32,640 30,000 Direct +25.00% Acquired 155.0% (price as of 2026-08-20)
Nov. 7, 2007 NPKI P 826 $5.43 $4,485 24,000 Direct +3.56% Acquired 155.4% (price as of 2026-08-20)
Nov. 7, 2007 NPKI P 3,174 $5.42 $17,203 23,174 Direct +15.87% Acquired 155.9% (price as of 2026-08-20)
Dec. 13, 2006 NPKI P 10,000 $6.99 $69,900 10,000 Direct Acquired 98.4% (price as of 2026-08-20)

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.

Date Ticker Security Underlying Exercise price Expiration Shares A/D
May 13, 2013 NPKI Non-Qualified Stock Option (right to buy) Common Stock (10,000) $7.17 Dec. 28, 2016 10,000 Disposed
Nov. 3, 2011 NPKI Non-Qualified Stock Option (right to buy) Common Stock (8,000) $5.11 Sept. 13, 2016 8,000 Disposed
Nov. 1, 2011 NPKI Non-Qualified Stock Option (right to buy) Common Stock (2,000) $5.11 Sept. 13, 2016 2,000 Disposed
Dec. 28, 2006 NPKI Stock Options (right to buy) Common Stock (10,000) $7.17 Dec. 28, 2016 10,000 Acquired
Sept. 13, 2006 NPKI Stock Option (right to buy) Common Stock (10,000) $5.11 Sept. 13, 2016 10,000 Acquired

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