Corporate insider
Williams Charles Alan
NPBHoldLens InsiderScore
+57
Heavy insider buying
Buys
4
$2.39M
Sells
0
$0
Dominant
buy
Confidence
43%
Transaction history
| Date | Action | Shares | Price | Value |
|---|---|---|---|---|
| Oct 26, 2026 | BUY | 50,000 | $15.3235 | $766K |
| Oct 23, 2026 | BUY | 50,000 | $15.4243 | $771K |
| May 13, 2026 | BUY | 25,000 | $17.0812 | $427K |
| May 12, 2026 | BUY | 25,000 | $17.21 | $430K |
Related
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Every tracked officer at NPB — aggregate InsiderScore + all Form 4s.
NPB ConvictionScore
Full 13F + InsiderScore unified signal for NPB.
Live insider feed
Every tracked Form 4 across all companies, chronological.
Deep dive
Reading for your research
Optional background reading on interpreting company disclosures and investing methods. These books do not validate a signal or predict returns.
Amazon affiliate links — as an Amazon Associate, HoldLens earns from qualifying purchases and membership trials at no extra cost to you. These are books we genuinely recommend. Not investment advice; always do your own research.
Benjamin Graham
The Intelligent Investor
The foundational text. Buffett calls it 'by far the best book about investing ever written.'
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Benjamin Graham & David Dodd
Security Analysis
The deep dive behind The Intelligent Investor — how to actually read a filing and value a business.
See price on Amazon
See the full investing reading list
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