NPKI

NPK International Inc
IndustrialsUSCUSIP 651718504◍ Confluence graph
Tracked 13F Holders
235
-112 QoQ
13F Value (tracked)
$1.1B
Insider Net · 180d
-$3.9M
0↑ 6↓
Recent Filings
15
Smart-money sentimentBearish
BearishBullish
13F funds (latest Q)35 adding · 29 trimming
Insider net (180d)-$3.9M

Who owns NPKI?

235 tracked 13F filers

235 tracked 13F filers disclose a position in NPKI as of the latest SEC 13F filings, a combined $1.1B in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

All quarters use one ordinary-share-equivalent series. Historical ADS are converted at 2 ADS = 1 ordinary share. Expand a row for the exact calculation; the residual is not classified as a trade.
2 source-reported value rows are withheld because the reported units do not agree with same-security peers. Share counts remain visible and unchanged.
#FundPosition valueSharesLast moveAs ofHistory
1BlackRock, Inc.
$104.4M
7.2M
+4.1%
Added · +283K sh
Q1 2026
2AMERIPRISE FINANCIAL INC
$81.5M
5.6M
+8.9%
Added · +458K sh
Q1 2026
3DIMENSIONAL FUND ADVISORS LP
$57.7M
4.0M
−11%
Reduced · −483K sh
Q1 2026
4VANGUARD CAPITAL MANAGEMENT LLC
$49.6M
3.4M
First observed position
No prior filed position
Q1 2026
5AMERICAN CENTURY COMPANIES INC
$44.1M
3.0M
−0.9%
Reduced · −28K sh
Q1 2026
6WASATCH ADVISORS LP
$44.7M
2.8M
−3.0%
Reduced · −87K sh
Q2 2026
7GEODE CAPITAL MANAGEMENT, LLC
$37.7M
2.4M
+5.6%
Added · +126K sh
Q2 2026
8STATE STREET CORP
$32.1M
2.0M
+3.0%
Added · +59K sh
Q2 2026
9MORGAN STANLEY
$26.4M
1.8M
+7.7%
Added · +130K sh
Q1 2026
10PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC.
$26.4M
1.8M
−1.8%
Reduced · −34K sh
Q1 2026
11Russell Investments Group, Ltd.
$25.0M
1.7M
−8.2%
Reduced · −155K sh
Q1 2026
12PRUDENTIAL FINANCIAL INC
$24.4M
1.7M
−12%
Reduced · −232K sh
Q1 2026
13EMERALD ADVISERS, LLC
$25.0M
1.6M
New
+1.6M sh
Q2 2026
14ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
$22.3M
1.5M
+46%
Added · +487K sh
Q1 2026
15LOOMIS SAYLES & CO L P
$17.1M
1.2M
−8.5%
Reduced · −109K sh
Q1 2026
16Allianz Asset Management GmbH
$16.8M
1.2M
+131%
Added · +655K sh
Q1 2026
17Qube Research & Technologies Ltd
$16.5M
1.1M
+48%
Added · +369K sh
Q1 2026
18Electron Capital Partners, LLC
$15.9M
1.1M
New
+1.1M sh
Q1 2026
19CHARLES SCHWAB INVESTMENT MANAGEMENT INC
$15.9M
1.1M
−5.8%
Reduced · −68K sh
Q1 2026
20EMERALD MUTUAL FUND ADVISERS TRUST
$17.1M
1.1M
New
+1.1M sh
Q2 2026
21Nuveen, LLC
$15.5M
1.1M
−4.0%
Reduced · −45K sh
Q1 2026
22TWO SIGMA INVESTMENTS, LP
$15.4M
1.1M
+110%
Added · +556K sh
Q1 2026
23GOLDMAN SACHS GROUP INC
$14.7M
1.0M
+44%
Added · +309K sh
Q1 2026
24NORTHERN TRUST CORP
$14.0M
969K
+2.6%
Added · +25K sh
Q1 2026
25VANGUARD PORTFOLIO MANAGEMENT LLC
$12.5M
861K
First observed position
No prior filed position
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Is NPKI being bought or sold by institutions?

Last quarter, 9 funds opened a new position in NPKI and 26 added to an existing one, while 29 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened (NEW)
9
funds
Added
26
funds
Reduced
29
funds
Exited
0
funds

Funds that own NPKI also own

CompanyCo-held byCombined value
MICROSOFT CORPMSFT125 funds$201.2B
NVIDIA CORPNVDA121 funds$297.9B
META PLATFORMS INC-CLASS AMETA120 funds$87.1B
AMAZON.COM INCAMZN119 funds$148.7B
ALPHABET INC-CL AGOOGL119 funds$125.5B
JPMORGAN CHASE & COJPM118 funds$49.0B
APPLE INCAAPL115 funds$219.8B
COSTCO WHOLESALE CORPCOST114 funds$29.4B
MICRON TECHNOLOGY INCMU113 funds$29.1B
ELI LILLY & COLLY112 funds$58.5B
VISA INC-CLASS A SHARESV111 funds$46.8B
BROADCOM INCAVGO109 funds$119.5B

Ranked by how many of NPKI's institutional holders also hold each name, a cross-fund conviction signal.

Insider activity (Form 4)

Full insider page →
Buys · 180d
$0
0 insiders
Sells · 180d
$3.9M
6 insiders
Net
-$3.9M
10 P/S txns
Signal
Net Selling
open-market
DateInsiderRoleActionSharesValue
Aug 27, 2026ROBESON ROSE MDirectorSell (S)10K$135K
Aug 17, 2026Lewis Michael ADirectorSell (S)2K$29K
Jun 8, 2026Briggs LoriVP & President, Ind. SolutionsSell (S)8K$123K
Jun 3, 2026LANIGAN MATTHEWPresident & CEO, DirectorSell (S)167K$2.4M
Jun 2, 2026Briggs LoriVP & President, Ind. SolutionsSell (S)10K$152K
May 15, 2026Lewis Michael ADirectorSell (S)2K$31K
Apr 9, 2026Piontek GreggSenior Vice President and CFOSell (S)15K$226K
Apr 1, 2026Piontek GreggSenior Vice President and CFOSell (S)35K$508K
Mar 25, 2026Piontek GreggSenior Vice President and CFOSell (S)15K$225K
Mar 16, 2026Fruge Mary CelesteVP, General CounselSell (S)1K$14K
Mar 6, 2026Fruge Mary CelesteVP, General CounselSell (S)11K$149K
Mar 4, 2026Piontek GreggSenior Vice President and CFOSell (S)35K$491K

Institutional ownership over time

109 funds-30 since Q3 2024
0111221Q3 2024Q1 2025Q3 2025Q1 2026Q2 2026
funds holding aggregate valuelatest $295.6M · 2 values withheld

Recent filings

15 shown

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Ask your agent what changed in NPKI

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

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curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/NPKI/capital-change-brief"
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Use Arkolith's capital_change_brief for NPKI.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for NPKI. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.