Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 74 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

74 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
March 5, 2021 WLKP P 4,000 $23.47 $93,880 4,000 Direct · Acquired -8.7% (price as of 2026-10-05)
Dec. 4, 2017 NPKI S 2,823 $9.07 $25,605 176,235 Direct -1.58% Disposed 30.2% (price as of 2026-10-05)
Dec. 1, 2017 NPKI S 1,300 $9.12 $11,856 179,058 Direct -0.72% Disposed 29.5% (price as of 2026-10-05)
Nov. 30, 2017 NPKI S 6,000 $9.07 $54,420 180,358 Direct -3.22% Disposed 30.2% (price as of 2026-10-05)
Nov. 29, 2017 NPKI S 300 $8.80 $2,640 186,358 Direct -0.16% Disposed 34.2% (price as of 2026-10-05)
Nov. 29, 2017 NPKI S 6,000 $8.86 $53,160 186,658 Direct -3.11% Disposed 33.3% (price as of 2026-10-05)
Nov. 28, 2017 NPKI S 5,000 $8.72 $43,600 192,658 Direct -2.53% Disposed 35.4% (price as of 2026-10-05)
Nov. 27, 2017 NPKI S 1,000 $8.80 $8,800 197,658 Direct -0.50% Disposed 34.2% (price as of 2026-10-05)
Nov. 27, 2017 NPKI S 1,000 $8.85 $8,850 198,658 Direct -0.50% Disposed 33.4% (price as of 2026-10-05)
June 14, 2011 NPKI S 2,000 $8.72 $17,440 64,149 Direct -3.02% Disposed 35.4% (price as of 2026-10-05)
June 14, 2011 NPKI S 3,400 $8.71 $29,614 66,149 Direct -4.89% Disposed 35.6% (price as of 2026-10-05)
June 14, 2011 NPKI S 2,100 $8.70 $18,270 69,549 Direct -2.93% Disposed 35.7% (price as of 2026-10-05)
June 14, 2010 NPKI S 1,300 $6.89 $8,957 72,958 Direct -1.75% Disposed 71.4% (price as of 2026-10-05)
June 14, 2010 NPKI S 1,400 $6.88 $9,632 74,258 Direct -1.85% Disposed 71.7% (price as of 2026-10-05)
June 14, 2010 NPKI S 2,000 $6.87 $13,740 75,658 Direct -2.58% Disposed 71.9% (price as of 2026-10-05)
June 14, 2010 NPKI S 1,900 $6.86 $13,034 77,658 Direct -2.39% Disposed 72.2% (price as of 2026-10-05)
June 14, 2010 NPKI S 2,500 $6.85 $17,125 79,558 Direct -3.05% Disposed 72.4% (price as of 2026-10-05)
June 14, 2010 NPKI S 200 $6.84 $1,368 82,058 Direct -0.24% Disposed 72.7% (price as of 2026-10-05)
June 14, 2010 NPKI S 700 $6.84 $4,788 82,258 Direct -0.84% Disposed 72.7% (price as of 2026-10-05)
Dec. 5, 2008 NPKI P 2,000 $3.77 $7,540 25,000 Direct +8.70% Acquired 213.3% (price as of 2026-10-05)
Nov. 7, 2007 NPKI P 1,400 $5.41 $7,574 13,000 Direct +12.07% Acquired 118.3% (price as of 2026-10-05)
Nov. 7, 2007 NPKI P 200 $5.41 $1,082 11,600 Direct +1.75% Acquired 118.3% (price as of 2026-10-05)
Nov. 7, 2007 NPKI P 1,400 $5.41 $7,574 11,400 Direct +14.00% Acquired 118.3% (price as of 2026-10-05)
Feb. 24, 2006 808362 S 34,834 $69.87 $2,433,852 132,479 Direct -20.82% Disposed
Nov. 7, 2005 808362 S 52,665 $55.99 $2,948,713 133,786 Direct -28.25% Disposed
March 4, 2005 808362 S 114,812 $46.47 $5,335,314 126,536 Direct -47.57% Disposed

Showing latest 100 of 112 transactions

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
Aug. 12, 2026 WLKP Phantom Units Common Units (5,044) · Sept. 12, 2027 5,044 Acquired
Aug. 6, 2026 WLKP Phantom Units Common Units (5,005) · Sept. 6, 2026 5,005 Disposed
Aug. 7, 2025 WLKP Phantom Units Common Units (4,882) · Sept. 7, 2025 4,882 Disposed
Aug. 6, 2025 WLKP Phantom Units Common Units (5,005) · Sept. 6, 2026 5,005 Acquired
Aug. 9, 2024 WLKP Phantom Units Common Units (4,560) · Sept. 9, 2024 4,560 Disposed
Aug. 7, 2024 WLKP Phantom Units Common Units (4,882) · Sept. 7, 2025 4,882 Acquired
Aug. 10, 2023 WLKP Phantom Units Common Units (4,177) · Sept. 10, 2023 4,177 Disposed
Aug. 9, 2023 WLKP Phantom Units Common Units (4,560) · Sept. 9, 2024 4,560 Acquired
Aug. 11, 2022 WLKP Phantom Units Common Units (3,726) · Sept. 11, 2022 3,726 Disposed
Aug. 10, 2022 WLKP Phantom Units Common Units (4,177) · Sept. 10, 2023 4,177 Acquired
Aug. 12, 2021 WLKP Phantom Units Common Units (4,927) · Sept. 12, 2021 4,927 Disposed
Aug. 11, 2021 WLKP Phantom Units Common Units (3,726) · Sept. 11, 2022 3,726 Acquired
May 14, 2021 WLKP Phantom Units Common Units (5,658) · June 14, 2021 5,658 Disposed
Aug. 12, 2020 WLKP Phantom Units Common Units (4,927) · Sept. 12, 2021 4,927 Acquired
May 14, 2020 WLKP Phantom Units Common Units (5,658) · June 14, 2021 5,658 Acquired
Feb. 24, 2006 808362 Common Stock, $1.00 Par Value Common Stock, $1.00 par value (8,500) $42.60 Jan. 26, 2015 8,500 Disposed
Feb. 24, 2006 808362 Common Stock, $1.00 Par Value Common Stock, $1.00 par value (13,167) $35.81 Jan. 28, 2014 13,167 Disposed
Feb. 24, 2006 808362 Common Stock, $1.00 Par Value Common Stock, $1.00 Par Value (13,167) $29.25 Jan. 29, 2013 13,167 Disposed
Nov. 7, 2005 808362 Stock Option (right to buy) Common Stock, $1.00 Par Value (13,166) $39.23 July 28, 2014 13,166 Disposed
Nov. 7, 2005 808362 Stock Option (right to buy) Common Stock, $1.00 Par Value (13,166) $35.81 Jan. 28, 2014 13,166 Disposed
Nov. 7, 2005 808362 Stock Option (right to buy) Common Stock, $1.00 Par Value (26,333) $32.62 July 22, 2013 26,333 Disposed
July 27, 2005 808362 Stock Option (Right to Buy) [F2,F3] Common Stock, $1.00 par value (25,500) $56.21 July 27, 2015 25,500 Acquired
March 4, 2005 808362 Stock Option (Right to Buy) Common Stock, $1.00 par value (26,333) $29.25 Jan. 29, 2013 26,333 Disposed
March 4, 2005 808362 Stock Option (right to buy) Common Stock, $1.00 par value (20,666) $24.94 July 24, 2012 20,666 Disposed
March 4, 2005 808362 Stock Option (right to buy) Common Stock, $1.00 par value (31,000) $32.50 Jan. 30, 2012 31,000 Disposed
March 4, 2005 808362 Stock Option (right to buy) Common Stock, $1.00 par value (9,522) $21.00 Oct. 1, 2008 9,522 Disposed
March 4, 2005 808362 Stock Option (right to buy) Common Stock, $1.00 par value (27,291) $36.00 Oct. 23, 2006 27,291 Disposed
Jan. 26, 2005 808362 Stock Option (Right to Buy) [F2] Common Stock, $1.00 par value (25,500) $42.60 Jan. 26, 2015 25,500 Acquired
Dec. 22, 2004 808362 Stock Option (right to buy) Common Stock, $1.00 par value (68,726) $21.00 Oct. 1, 2008 68,726 Disposed
July 28, 2004 808362 Stock Option (Right to Buy) [F1,F2] Common Stock, $1.00 par value (39,500) $39.23 July 28, 2014 39,500 Acquired
June 21, 2004 808362 Stock Option (right to buy) Common Stock, $1.00 par value (82,134) $21.00 Oct. 1, 2008 82,134 Disposed
Jan. 28, 2004 808362 Stocl Option (right to buy) [F1,F2] Common Stock, $1.00 par value (39,500) $35.81 Jan. 28, 2014 39,500 Acquired
Dec. 19, 2003 808362 Stock Option (right to buy) Common Stock, $1.00 par value (9,811) $21.00 Oct. 1, 2008 9,811 Disposed
Dec. 19, 2003 808362 Stock Option (right to buy) Common Stock, $1.00 par value (44,034) $21.00 Oct. 1, 2008 44,034 Disposed
July 22, 2003 808362 Stock Option (right to buy) [F1,F2] Common Stock, $1.00 par value (39,500) $32.62 July 22, 2013 39,500 Acquired
July 24, 2002 808362 Stock Option (Right to Buy) Common Stock, $1.00 par value (10,334) $24.94 July 24, 2012 10,334 Disposed
Oct. 22, 1997 808362 Stock Option (right to Buy) Common Stock, $1.00 par value (26,352) $47.81 Oct. 22, 2007 26,352 Disposed

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