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Insider Trading activities at Npk International Inc. (NPKI)

Insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Npk International Inc. (NPKI) since 2016 are shown in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Npk International Inc.. Table 2 shows the detailed insider transactions. This company's CIK number is 71829.

Total stock buying since 2016: $1,325,718.
Total stock sales since 2016: $11,569,189.
Total stock option exercises since 2016: $5,010,411.


20 insiders reported insider trading activities at Npk International Inc. (NPKI):
▪ Insider trading activities of Briggs Lori
▪ Insider trading activities of Howes Paul L
▪ Insider trading activities of Meer Claudia Michel
▪ Insider trading activities of Anderson David C
▪ Insider trading activities of Mcfarland James
▪ Insider trading activities of Smith Bruce Campbell
▪ Insider trading activities of Piontek Gregg
▪ Insider trading activities of Lanigan Matthew
▪ Insider trading activities of Cutillo Joseph A
▪ Insider trading activities of Airola Mark J
▪ Insider trading activities of Minge John C
▪ Insider trading activities of Young Donald Win
▪ Insider trading activities of Finley G Stephen
▪ Insider trading activities of Fruge Mary Celeste
▪ Insider trading activities of Earle Edward Chipman
▪ Insider trading activities of Vollands Phillip T
▪ Insider trading activities of Warren Gary L
▪ Insider trading activities of Lewis Michael A
▪ Insider trading activities of Paterson David A
▪ Insider trading activities of White Douglas L

Table 1. Yearly summary of insider stock purchases, sales, and option exercises at Npk International Inc. (NPKI).
Insider Buying Insider Sales Option Exercises
Year Shares Value Shares Value Shares Value
2025 22,500 $153,800 99,636 $987,079 462,887 $301,950
2024 0 $0 0 $0 660,600 $0
2023 9,300 $49,425 0 $0 581,825 $0
2022 242,556 $787,491 0 $0 537,144 $0
2021 30,000 $68,730 0 $0 529,073 $0
2020 125,000 $168,774 0 $0 363,084 $0
2019 15,000 $87,540 312,632 $2,890,901 827,003 $662,000
2018 1,300 $9,958 455,153 $4,644,185 994,618 $2,583,414
2017 0 $0 374,242 $3,047,024 610,132 $1,319,647
2016 0 $0 0 $0 168,328 $143,400

Table 2. Monthly summary of insider trading at Npk International Inc. (NPKI).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2025-09 0 $0 1,000 $10,380 1,000 $4,320
2025-08 0 $0 78,914 $809,469 68,896 $297,630
2025-07 0 $0 8,005 $68,586 0 $0
2025-06 0 $0 11,717 $98,644 392,991 $0
2025-05 12,500 $100,000 0 $0 0 $0
2025-03 10,000 $53,800 0 $0 0 $0
2024-09 0 $0 0 $0 49,999 $0
2024-06 0 $0 0 $0 610,601 $0
2023-09 0 $0 0 $0 50,000 $0
2023-08 9,300 $49,425 0 $0 0 $0
2023-06 0 $0 0 $0 531,825 $0
2022-12 5,251 $20,898 0 $0 0 $0
2022-11 45,000 $176,035 0 $0 0 $0
2022-08 104,603 $279,330 0 $0 0 $0
2022-06 0 $0 0 $0 537,144 $0
2022-05 87,702 $311,228 0 $0 0 $0
2021-11 0 $0 0 $0 12,500 $0
2021-08 30,000 $68,730 0 $0 0 $0
2021-07 0 $0 0 $0 50,000 $0
2021-06 0 $0 0 $0 435,163 $0
2021-05 0 $0 0 $0 31,410 $0
2020-11 72,500 $88,624 0 $0 0 $0
2020-06 0 $0 0 $0 363,084 $0
2020-05 52,500 $80,150 0 $0 0 $0

Table 3. Detailed insider trading at Npk International Inc. (NPKI)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2025-09-03 Lanigan Matthew (President & CEO) Sale 1,000 10.38 10,380
2025-09-03 Lanigan Matthew (President & CEO) Option Ex 1,000 4.32 4,320
2025-08-25 Lewis Michael A (Director) Sale 2,013 10.33 20,796
2025-08-22 Lanigan Matthew (President & CEO) Sale 68,896 10.34 712,522
2025-08-22 Lanigan Matthew (President & CEO) Option Ex 68,896 4.32 297,630
2025-08-11 Briggs Lori (VP & President, Ind. Solutions) Sale 8,005 9.51 76,151
2025-07-09 Briggs Lori (VP & President, Ind. Solutions) Sale 8,005 8.57 68,586
2025-06-16 Lewis Michael A (Director) Sale 2,013 8.60 17,315
2025-06-06 Briggs Lori (VP & President, Ind. Solutions) Sale 9,704 8.38 81,329
2025-06-01 Fruge Mary Celeste (VP, General Counsel) Option Ex 17,247 .00 0
2025-06-01 Briggs Lori (VP & President, Ind. Solutions) Option Ex 50,736 .00 0
2025-06-01 Lanigan Matthew (President & CEO) Option Ex 208,839 .00 0
2025-06-01 White Douglas L (VP, CAO & Treasurer) Option Ex 32,000 .00 0
2025-06-01 Piontek Gregg (Senior Vice President and CFO) Option Ex 84,169 .00 0
2025-05-08 Cutillo Joseph A (Director) Buy 12,500 8.00 100,000
2025-03-05 Minge John C (Director) Buy 10,000 5.38 53,800
2024-09-01 Briggs Lori (VP & President, Ind. Solutions) Option Ex 16,666 .00 0
2024-09-01 Lanigan Matthew (President & CEO) Option Ex 33,333 .00 0
2024-06-01 Fruge Mary Celeste (VP, General Counsel) Option Ex 17,274 .00 0
2024-06-01 Briggs Lori (VP & President, Ind. Solutions) Option Ex 66,737 .00 0
2024-06-01 Paterson David A (VP & President, Fluids Systems) Option Ex 94,643 .00 0
2024-06-01 Lanigan Matthew (President & CEO) Option Ex 245,930 .00 0
2024-06-01 White Douglas L (VP, CAO & Treasurer) Option Ex 50,666 .00 0
2024-06-01 Piontek Gregg (Senior Vice President and CFO) Option Ex 135,351 .00 0
2023-09-01 Briggs Lori (VP & President, Ind. Solutions) Option Ex 16,667 .00 0
2023-09-01 Lanigan Matthew (President & CEO) Option Ex 33,333 .00 0
2023-08-21 Meer Claudia Michel (Director) Buy 1,300 5.57 7,241
2023-08-16 Meer Claudia Michel (Director) Buy 8,000 5.27 42,184
2023-06-02 Paterson David A (VP & President, Fluids Systems) Option Ex 33,166 .00 0
2023-06-02 White Douglas L (Vice President, CAO) Option Ex 17,333 .00 0
2023-06-02 Piontek Gregg (Senior Vice President and CFO) Option Ex 51,182 .00 0
2023-06-01 Briggs Lori (VP & President, Ind. Solutions) Option Ex 56,397 .00 0
2023-06-01 Paterson David A (VP & President, Fluids Systems) Option Ex 66,408 .00 0
2023-06-01 Lanigan Matthew (President & CEO) Option Ex 180,115 .00 0
2023-06-01 White Douglas L (Vice President, CAO) Option Ex 36,001 .00 0
2023-06-01 Piontek Gregg (Senior Vice President and CFO) Option Ex 91,223 .00 0
2022-12-09 Lewis Michael A (Director) Buy 5,251 3.98 20,898
2022-11-21 Young Donald Win (Director) Buy 30,000 3.94 118,320
2022-11-21 Minge John C (Director) Buy 5,000 3.64 18,200
2022-11-18 Meer Claudia Michel (Director) Buy 4,000 3.95 15,800
2022-11-16 Meer Claudia Michel (Director) Buy 1,000 3.98 3,975
2022-11-10 Minge John C (Director) Buy 5,000 3.95 19,740
2022-08-17 Young Donald Win (Director) Buy 40,400 2.66 107,544
2022-08-16 Young Donald Win (Director) Buy 33,828 2.68 90,557
2022-08-16 Minge John C (Director) Buy 15,000 2.66 39,855
2022-08-15 Young Donald Win (Director) Buy 15,375 2.69 41,374
2022-06-01 Briggs Lori (VP & President, Industrial) Option Ex 29,195 .00 0
2022-06-01 Paterson David A (VP & President, Fluids Systems) Option Ex 68,956 .00 0
2022-06-01 Lanigan Matthew (President & CEO) Option Ex 113,201 .00 0
2022-06-01 White Douglas L (Vice President, CAO) Option Ex 41,588 .00 0
2022-06-01 Earle Edward Chipman (VP, General Counsel, CAO) Option Ex 112,493 .00 0
2022-06-01 Piontek Gregg (Senior Vice President and CFO) Option Ex 171,711 .00 0
2022-05-12 Young Donald Win (Director) Buy 19,252 3.54 68,152
2022-05-09 Young Donald Win (Director) Buy 42,000 3.45 145,026
2022-05-06 Young Donald Win (Director) Buy 26,450 3.71 98,050
2021-11-20 White Douglas L (Vice President, CAO) Option Ex 12,500 .00 0
2021-08-26 Howes Paul L (President & CEO) Buy 30,000 2.29 68,730
2021-07-15 Paterson David A (VP & President, Fluid Systems) Option Ex 50,000 .00 0
2021-06-01 Paterson David A (VP & President, Fluid Systems) Option Ex 33,167 .00 0
2021-06-01 Lanigan Matthew (VP and President of) Option Ex 60,493 .00 0
2021-06-01 White Douglas L (Controller, CAO, PAO) Option Ex 27,639 .00 0
2021-06-01 Earle Edward Chipman (VP, General Counsel, CAO) Option Ex 65,188 .00 0
2021-06-01 Howes Paul L (President and CEO) Option Ex 248,676 .00 0
2021-05-18 Lanigan Matthew (VP and President of) Option Ex 6,410 .00 0
2021-05-18 Howes Paul L (President and CEO) Option Ex 25,000 .00 0
2020-11-16 Howes Paul L (President and CEO) Buy 45,000 1.29 58,050
2020-11-13 Howes Paul L (President and CEO) Buy 12,500 1.15 14,374
2020-11-11 Piontek Gregg (Senior Vice President and CFO) Buy 15,000 1.08 16,200
2020-06-01 Lanigan Matthew (VP and Pres of NMIS) Option Ex 62,337 .00 0
2020-06-01 White Douglas L (Controller, CAO, PAO) Option Ex 13,767 .00 0
2020-06-01 Earle Edward Chipman (VP, General Counsel, CAO) Option Ex 21,347 .00 0
2020-06-01 Piontek Gregg (Senior Vice President and CFO) Option Ex 102,552 .00 0
2020-06-01 Howes Paul L (President and CEO) Option Ex 163,081 .00 0
2020-05-12 Piontek Gregg (Senior Vice President and CFO) Buy 15,000 1.64 24,600
2020-05-11 Piontek Gregg (Senior Vice President and CFO) Buy 5,000 1.58 7,900
2020-05-08 Earle Edward Chipman (VP, General Counsel, CAO) Buy 12,500 1.46 18,250
2020-05-08 Piontek Gregg (Senior Vice President and CFO) Buy 20,000 1.47 29,400
2019-11-27 White Douglas L (Controller, CAO, PAO) Sale 6,145 6.07 37,275
2019-11-19 Howes Paul L (President and CEO) Buy 15,000 5.84 87,540
2019-07-02 Lanigan Matthew (VP and Pres of NMIS) Option Ex 29,862 .00 0
2019-07-02 Piontek Gregg (Senior Vice President and CFO) Option Ex 41,922 .00 0
2019-07-02 Smith Bruce Campbell (Exec Vice President & Chief) Option Ex 51,268 .00 0
2019-07-02 Howes Paul L (President and CEO) Option Ex 156,424 .00 0
2019-06-01 Lanigan Matthew (VP and Pres of NMIS) Option Ex 28,546 .00 0
2019-06-01 White Douglas L (Controller, CAO, PAO) Option Ex 16,300 .00 0
2019-06-01 Piontek Gregg (Senior Vice President and CFO) Option Ex 51,766 .00 0
2019-06-01 Smith Bruce Campbell (Exec Vice President & Chief) Option Ex 40,615 .00 0
2019-06-01 Howes Paul L (President and CEO) Option Ex 178,890 .00 0
2019-05-18 Lanigan Matthew (VP and Pres of NMIS) Option Ex 6,410 .00 0
2019-05-18 Howes Paul L (President and CEO) Option Ex 25,000 .00 0
2019-04-05 Howes Paul L (President and CEO) Sale 106,487 9.50 1,011,626
2019-04-01 Howes Paul L (President and CEO) Sale 200,000 9.21 1,842,000
2019-04-01 Howes Paul L (President and CEO) Option Ex 200,000 3.31 662,000
2018-11-20 Minge John C (Director) Buy 1,300 7.66 9,958
2018-08-14 Piontek Gregg (Senior Vice President and CFO) Option Ex 24,481 .00 0
2018-08-14 Smith Bruce Campbell (Exec Vice President & Chief) Option Ex 29,940 .00 0
2018-08-14 Howes Paul L (President and CEO) Option Ex 91,350 .00 0
2018-08-14 Airola Mark J (Sr Vice Pres, General Counsel) Option Ex 26,998 .00 0
2018-06-01 Vollands Phillip T (Vice President and President) Option Ex 30,520 .00 0
2018-06-01 Lanigan Matthew (VP and Pres of NMIS) Option Ex 19,163 .00 0
2018-06-01 White Douglas L (Controller, CAO, PAO) Option Ex 16,012 .00 0
2018-06-01 Piontek Gregg (Senior Vice President and CFO) Option Ex 49,277 .00 0
2018-06-01 Smith Bruce Campbell (Exec Vice President & Chief) Option Ex 55,488 .00 0
2018-06-01 Howes Paul L (President and CEO) Option Ex 181,504 .00 0
2018-06-01 Airola Mark J (Sr Vice Pres, General Counsel) Option Ex 53,645 .00 0
2018-05-04 Smith Bruce Campbell (Exec Vice President & Chief) Sale 43,750 10.50 459,243
2018-05-04 Smith Bruce Campbell (Exec Vice President & Chief) Option Ex 43,750 7.89 345,187
2018-05-04 Howes Paul L (President and CEO) Sale 47,495 10.40 494,185
2018-05-04 Howes Paul L (President and CEO) Option Ex 47,495 7.89 374,735
2018-05-03 Anderson David C (Director) Sale 20,000 10.26 205,280
2018-05-03 Howes Paul L (President and CEO) Sale 75,000 10.27 770,175
2018-05-03 Howes Paul L (President and CEO) Option Ex 75,000 7.89 591,750
2018-05-02 Lanigan Matthew (VP and Pres of NMIS) Sale 18,913 10.52 198,964
2018-05-02 Piontek Gregg (Senior Vice President and CFO) Sale 51,490 10.51 540,902
2018-05-02 Piontek Gregg (Senior Vice President and CFO) Option Ex 51,490 5.60 288,344
2018-05-02 Howes Paul L (President and CEO) Sale 27,505 10.51 289,187
2018-05-02 Howes Paul L (President and CEO) Option Ex 27,505 7.89 217,014
2018-05-01 Airola Mark J (Sr Vice Pres, General Counsel) Sale 127,250 10.34 1,315,510
2018-05-01 Airola Mark J (Sr Vice Pres, General Counsel) Option Ex 127,250 3.31 421,197
2018-02-22 Smith Bruce Campbell (Exec Vice President & Chief) Sale 20,678 8.53 176,404
2018-02-22 Smith Bruce Campbell (Exec Vice President & Chief) Option Ex 20,678 7.89 163,149
2018-02-21 Smith Bruce Campbell (Exec Vice President & Chief) Sale 23,072 8.42 194,335
2018-02-21 Smith Bruce Campbell (Exec Vice President & Chief) Option Ex 23,072 7.89 182,038
2017-12-04 Finley G Stephen (Director) Sale 2,823 9.07 25,601
2017-12-01 Finley G Stephen (Director) Sale 1,300 9.12 11,852
2017-11-30 Finley G Stephen (Director) Sale 6,000 9.07 54,402
2017-11-29 Finley G Stephen (Director) Sale 6,300 8.83 55,622
2017-11-28 Finley G Stephen (Director) Sale 5,000 8.72 43,590
2017-11-27 Finley G Stephen (Director) Sale 2,000 8.82 17,650
2017-11-14 Anderson David C (Director) Sale 17,000 8.91 151,436
2017-08-16 Piontek Gregg (Vice President and CFO) Option Ex 19,819 .00 0
2017-08-16 Smith Bruce Campbell (Exec Vice President &) Option Ex 24,238 .00 0
2017-08-16 Howes Paul L (President and CEO) Option Ex 73,953 .00 0
2017-08-16 Airola Mark J (Sr Vice Pres, General Counsel) Option Ex 21,856 .00 0
2017-08-01 Lanigan Matthew (VP and Pres of NMIS) Sale 40,771 8.46 344,718
2017-08-01 Lanigan Matthew (VP and Pres of NMIS) Option Ex 34,948 4.32 150,975
2017-06-02 Anderson David C (Director) Sale 15,124 7.35 111,100
2017-06-01 Lanigan Matthew (VP and Pres of NMIS) Option Ex 7,946 .00 0
2017-06-01 White Douglas L (Controller, CAO, PAO) Option Ex 12,551 .00 0
2017-06-01 Piontek Gregg (Vice President and CFO) Option Ex 34,470 .00 0
2017-06-01 Smith Bruce Campbell (Exec Vice President &) Option Ex 42,156 .00 0
2017-06-01 Howes Paul L (President and CEO) Option Ex 128,619 .00 0
2017-06-01 Airola Mark J (Sr Vice Pres, General Counsel) Option Ex 38,014 .00 0
2017-05-19 Piontek Gregg (Vice President and CFO) Sale 34,372 8.04 276,282
2017-05-16 Howes Paul L (President and CEO) Sale 32,091 7.90 253,647
2017-05-16 Howes Paul L (President and CEO) Option Ex 32,091 7.82 250,951
2017-05-15 Smith Bruce Campbell (Exec Vice President &) Sale 9,478 8.00 75,824
2017-05-15 Smith Bruce Campbell (Exec Vice President &) Option Ex 9,478 7.82 74,117
2017-05-15 Howes Paul L (President and CEO) Sale 109,049 7.97 869,556
2017-05-15 Howes Paul L (President and CEO) Option Ex 47,909 7.82 374,648
2017-05-12 Smith Bruce Campbell (Exec Vice President &) Sale 1,100 8.00 8,800
2017-05-12 Smith Bruce Campbell (Exec Vice President &) Option Ex 1,100 7.82 8,602
2017-04-12 Smith Bruce Campbell (Exec Vice President &) Sale 2,400 8.25 19,800
2017-04-12 Smith Bruce Campbell (Exec Vice President &) Option Ex 2,400 7.82 18,768
2017-04-10 Smith Bruce Campbell (Exec Vice President &) Sale 35,522 8.25 293,056
2017-04-10 Smith Bruce Campbell (Exec Vice President &) Option Ex 35,522 7.82 277,782
2017-04-05 Smith Bruce Campbell (Exec Vice President &) Sale 20,282 8.09 164,040
2017-04-05 Smith Bruce Campbell (Exec Vice President &) Option Ex 9,432 5.57 52,489
2017-04-04 Smith Bruce Campbell (Exec Vice President &) Sale 21,388 8.04 172,002
2017-04-04 Smith Bruce Campbell (Exec Vice President &) Option Ex 21,388 3.31 70,794
2017-04-03 Smith Bruce Campbell (Exec Vice President &) Sale 12,242 8.01 98,046
2017-04-03 Smith Bruce Campbell (Exec Vice President &) Option Ex 12,242 3.31 40,521
2016-12-08 Mcfarland James (Director) Option Ex 10,000 7.17 71,700
2016-12-06 Warren Gary L (Director) Option Ex 10,000 7.17 71,700
2016-08-10 Piontek Gregg (Vice President and CFO) Option Ex 8,076 .00 0
2016-08-10 Smith Bruce Campbell (Exec Vice President &) Option Ex 10,446 .00 0
2016-08-10 Howes Paul L (President and CEO) Option Ex 30,644 .00 0
2016-08-10 Airola Mark J (Sr Vice Pres, General Counsel) Option Ex 8,906 .00 0
2016-06-01 White Douglas L (Controller, CAO, PAO) Option Ex 4,428 .00 0
2016-06-01 Piontek Gregg (Vice President and CFO) Option Ex 12,162 .00 0
2016-06-01 Smith Bruce Campbell (Exec Vice President &) Option Ex 14,874 .00 0
2016-06-01 Howes Paul L (President and CEO) Option Ex 45,380 .00 0
2016-06-01 Airola Mark J (Sr Vice Pres, General Counsel) Option Ex 13,412 .00 0

Insider trading activities including stock purchases, stock sales, and option exercises of NPKI listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Npk International Inc. (symbol NPKI, CIK number 71829) see the Securities and Exchange Commission (SEC) website.



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