STRR Star Equity Holdings, Inc.
Price Chart
Executive Summary
CEO Jeffrey Eberwein and two directors made open-market purchases totaling ~$36K over a 7-day window, with the CEO alone accounting for ~$134K of the $162K in total cluster activity. At a $43M market cap, the total dollar value of insider purchases represents 0.38% of market cap, a notable but not exceptional cluster. The CEO's concentrated buying (5 of 8 trades) is a modestly positive signal, but the small absolute size and mixed historical calibration (past cluster reports on STRR have been roughly flat at T+20) limit conviction.
Key Financial Metrics
Actionable Insight
CEO Eberwein's persistent buying over the past 30 days (totaling ~$135K in just this cluster, plus prior purchases) signals insider conviction. However, the modest dollar size relative to market cap and STRR's historically muted reaction to insider clusters suggest limited near-term upside. Monitor for any 8-K filing (earnings, contract win, or guidance) that could explain the concentrated buying window — the cross-filing calibrators flag earnings, offering, and press contexts as amplifiers. If no catalyst emerges within 10 days, the cluster likely reflects routine accumulation.
Key Facts
- Insider cluster (3 insiders, 7-day window ending 2026-06-04): CEO Jeffrey Eberwein bought ~$134K worth of STRR shares across 5 open-market transactions
- Two directors also purchased: Todd Fruhbeis ($8K on 6/1) and Louis Parks ($12K on 5/29)
- A non-cash tax-withholding transaction (Matthew Diamond, CAO, 763 shares surrendered) is included in the cluster but has $0 economic impact
- Total open-market purchases in the cluster = ~$162K, +80% of which is from the CEO
- This cluster represents about 0.38% of the $43M market cap, squarely in the 'modest' proportionality band
- Past STRR cluster reports have delivered an average T+20 alpha vs SPY of -4.74%, though the sample is small (4 settled reports)
- All 8 trades in the database are cross-referenced; 6 of the 8 are P (open-market purchase) code transactions
- The 30-day prior window shows 9 buys totaling $290K across the broader insider base, suggesting sustained insider interest
Financial Impact
Insiders deployed ~$162K in open-market purchases over 7 days, roughly 0.38% of market cap. The CEO's $134K portion is the most significant element.
Risk Factors
- CEO buying may be part of a 10b5-1 plan — no plan disclosure is present in this cluster to rule that out
- STRR has a low T+20 historical alpha vs SPY (-4.74% across past cluster reports), suggesting beneficial ownership moves drive limited institutional re-rating
- The SCORE CALIBRATION data shows all scores 6-9 on filing_report have observed P < 40%, historically underperforming for this filing type and cap bucket
Market Snapshot
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-STRR-1780609467332 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
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Jun 4, 2026
2d ago
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Insider Cluster
| — | awaiting T+5 | — | — |
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Jun 3, 2026
3d ago
|
Insider Cluster
| — | awaiting T+5 | — | — |
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Jun 2, 2026
3d ago
|
Insider Cluster
| — | awaiting T+5 | — | — |
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Jun 1, 2026
5d ago
|
Insider Cluster
| — | awaiting T+5 | — | — |
|
May 27, 2026
9d ago
|
Insider Cluster
| $11.55 $11.55 | · 0.00% | ▲ +0.05% | $11.30 (−2.16%) |
|
May 27, 2026
9d ago
|
Insider Cluster
| $11.55 $11.55 | · 0.00% | ▲ +0.05% | $11.30 (−2.16%) |
|
May 27, 2026
9d ago
|
Insider Cluster
| — | awaiting T+5 | — | — |
|
May 21, 2026
16d ago
|
Insider Cluster
| — | awaiting T+5 | — | — |
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May 15, 2026
22d ago
|
Press Release
| $9.73 $11.48 | ▲ +17.99% | ▲ +17.02% | $11.30 (+16.14%) |
|
May 11, 2026
26d ago
|
Press Release
| $9.77 $9.70 | ▲ +0.72% | ▲ +0.79% | $11.30 (−15.66%) |
US Market Status
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