Corporate insider
DELGROSSO DOUGLAS G
CBTHoldLens InsiderScore
+15
Slight insider buying
Buys
1
$2K
Sells
0
$0
Dominant
buy
Confidence
10%
Transaction history
| Date | Action | Shares | Price | Value |
|---|---|---|---|---|
| Sep 11, 2026 | BUY | 30.628 | $79.68 | $2K |
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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.'
See price on Amazon
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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