Company insider activity
PRLB — insider activity
PRLB — 18 tracked Form 4 transactions across 2 distinct insiders. Scored on HoldLens's signed −100..+100 InsiderScore.
HoldLens InsiderScore
-49
Net insider selling
Buys
5
$617K
Sells
13
$2.54M
Cluster
No
3+ officers · 30d
Confidence
66%
sample × size
All tracked transactions
| Insider | Action | Value |
|---|---|---|
| Schumacher Daniel | SELL | $477K |
| Schumacher Daniel | SELL | $418K |
| Schumacher Daniel | SELL | $9K |
| Kenison Michael R. | SELL | $0 |
| Kenison Michael R. | SELL | $0 |
| Kenison Michael R. | SELL | $0 |
| Kenison Michael R. | SELL | $467K |
| Kenison Michael R. | SELL | $250K |
| Kenison Michael R. | SELL | $288K |
| Kenison Michael R. | SELL | $109K |
| Kenison Michael R. | BUY | $240K |
| Kenison Michael R. | BUY | $62K |
| Kenison Michael R. | BUY | $65K |
| Kenison Michael R. | SELL | $0 |
| Kenison Michael R. | SELL | $0 |
| Kenison Michael R. | SELL | $522K |
| Kenison Michael R. | BUY | $123K |
| Kenison Michael R. | BUY | $127K |
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PRLB ConvictionScore
Full 13F + InsiderScore unified signal for PRLB.
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.'
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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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