Company insider activity
RSI — insider activity
RSI — 3 tracked Form 4 transactions across 2 distinct insiders. Scored on HoldLens's signed −100..+100 InsiderScore.
HoldLens InsiderScore
+22
Net insider buying
Buys
2
$29K
Sells
1
$0
Cluster
No
3+ officers · 30d
Confidence
32%
sample × size
All tracked transactions
| Insider | Action | Value |
|---|---|---|
| Markell Jack A. | BUY | $29K |
| BLUHM NEIL | BUY | $0 |
| BLUHM NEIL | SELL | $0 |
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RSI ConvictionScore
Full 13F + InsiderScore unified signal for RSI.
Live insider feed
Every tracked Form 4 across all companies, chronological.
Insider methodology
How InsiderScore is computed — role, action, recency, cluster bonus.
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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