Ticker · CUSIP 651718504
···Share
Holders (tracked)
13
Combined shares
3,588,657
Combined value
$42.04M
Last close
Quarter
2025Q4
Tracked holders · last 8 quarters
+1 vs previous quarter over the last 8.
13122024Q12025Q4

SEC event timeline

22 events
  1. Piontek Gregg · Senior Vice President and CFO
    2026-04-09
    Sold $225.7K @ $15.04
    Insider sell
  2. +224,475 shares · 2025Q4
    13F
  3. −75,845 shares · 2025Q4
    13F
  4. −282,039 shares · 2025Q4
    13F
  5. +71,458 shares · 2025Q4
    13F
  6. −60,556 shares · 2025Q4
    13F
  7. +523,235 shares · 2025Q4
    13F
  8. +46,016 shares · 2025Q4
    13F
  9. +3,181 shares · 2025Q4
    13F
  10. −155,100 shares · 2025Q4
    13F
  11. −49,033 shares · 2025Q4
    13F
  12. −7,315 shares · 2025Q4
    13F
  13. −6,800 shares · 2025Q4
    13F
  14. −46,650 shares · 2025Q3
    13F
  15. +13,796 shares · 2025Q3
    13F
  16. +323,549 shares · 2025Q3
    13F
  17. +184,755 shares · 2025Q3
    13F
  18. +5,523 shares · 2025Q3
    13F
  19. +42,083 shares · 2025Q3
    13F
  20. +75,647 shares · 2025Q3
    13F
  21. −144,900 shares · 2025Q3
    13F
  22. −145,000 shares · 2025Q3
    13F

Insider activity

Last 30 days
Net (open-market)
−$225.7K
Buys
0 · $0
Sells
1 · $225.7K
Unique insiders
1
DateInsiderCodeSharesPriceValue
04-09Piontek Gregg
Senior Vice President and CFO · Officer
S15,000$15.04$225.7K

Who moved on this name in 2025Q4

13F transactions reported for the latest quarter, grouped by direction.

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
10
$34.3M
2022Q2
11
$30.8M
2022Q3
9
$24K
2022Q4
10
$38.0M
2023Q1
11
$34.0M
2023Q2
12
$50.2M
2023Q3
14
$61.5M
2023Q4
11
$62.3M
2024Q1
12
$71.2M
2024Q2
13
$82.8M
2024Q3
12
$20.7M
2024Q4
11
$16.8M
2025Q1
12
$19.8M
2025Q2
11
$26.8M
2025Q3
12
$37.3M
2025Q4
13
$42.0M

Who owns NPKI

13 super-investors · 2025Q4
Tracked stake
3.59M
shares
Combined value
$42M
% of shares outstanding
shares-out unknown
Quarter action mix
New1Added4Trim8
#ManagerSharesValue
1Steve Cohen
Point72
537.0K$6M
2Renaissance Technologies519.3K$6M
3Wellington Management506.6K$6M
4Two Sigma Investments505.2K$6M
5First Eagle Investment Management265.3K$3M
6Ken Griffin
Citadel Advisors
241.6K$3M
7Ken Fisher
Fisher Asset Mgmt
232.0K$3M
8Paul Tudor Jones
Tudor Investment
224.5K$3M
9D.E. Shaw & Co.202.1K$2M
10AQR Capital Management174.5K$2M
11Izzy Englander
Millennium Mgmt
106.5K$1M
12Ken Griffin
Citadel Advisors
12.3K$147K
13T. Rowe Price61.7K$736

Recent moves

20 transactions
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