The coordinated sale by two 10% owners at the same price and volume is a strong bearish signal, despite the weaker predictive power of insider sales clusters. Monitor for any forthcoming 8-K filings (e.g., earnings, guidance, or material agreements) that could explain the selling. The stock's recent insider activity (30d: $23.6M in sells) is now entirely explained by this cluster.
Price Chart
Executive Summary
Three insiders at Byline Bancorp sold a total of $23.55M in stock over a 7-day window, with two 10% owners (Antonio Del Valle Perochena and MBG Investors I, L.P.) each selling $11.73M on the same day. The CHRO sold a small $94K position. The two large sales by 10% owners represent ~1.3% of the company's $1.8B market cap, a significant and coordinated reduction that warrants attention despite the academic literature's weaker signal for insider sales clusters.
Key Financial Metrics
Key Facts
- Two 10% owners (Antonio Del Valle Perochena and MBG Investors I, L.P.) each sold 300,000 shares at $39.10 on August 7, 2026, totaling $23.46M.
- CHRO Dana Rose sold 2,421 shares at $39.00 on August 12, 2026, for $94,419.
- Total insider sales of $23.55M represent approximately 1.3% of BY's $1.8B market cap.
- The two large sales by 10% owners were identical in size and price, suggesting a coordinated or pre-arranged sale.
- No open-market purchases were reported in the cluster.
Financial Impact
Insider sales of $23.55M, representing ~1.3% of market cap
Risk Factors
- Insider sales may be pre-arranged under a 10b5-1 plan, reducing their informational value.
- The stock has a 71% bullish analyst consensus, which may conflict with this bearish signal.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-BY-1786612016512 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 22, 2026 4d ago | 8-K | $38.40 | awaiting T+20 | — | $38.40 (+0.00%) |
Oct 8, 2026 18d ago | 8-K | $36.32 | awaiting T+20 | — | $38.40 (+5.73%) |
Oct 6, 2026 20d ago | 8-K | $36.57 | awaiting T+20 | — | $38.40 (+5.00%) |
Aug 20, 2026 9w ago | Insider Cluster | $38.33 $37.52 | ▼ −2.11% | ▼ −2.11% | $38.40 (+0.18%) |
Aug 15, 2026 10w ago | Institutional Cluster | $39.15 $38.43 | ▼ −1.84% | ▼ −0.31% | $38.40 (−1.92%) |
Aug 14, 2026 10w ago | Insider Cluster | $39.15 $38.43 | ▲ +1.84% | ▲ +0.31% | $38.40 (+1.92%) |
Aug 12, 2026 10w ago | Insider Cluster | $39.26 $38.67 | ▲ +1.50% | ▼ −0.24% | $38.40 (+2.19%) |
Aug 11, 2026 10w ago | Insider Cluster | $39.23 $38.38 | ▲ +2.17% | ▲ +0.27% | $38.40 (+2.12%) |
Aug 3, 2026 12w ago | 144 | $39.64 $37.92 | ▼ −4.34% | ▼ −5.58% | $38.40 (−3.13%) |
May 22, 2026 22w ago | 8-K | $33.40 $36.50 | ▲ +9.28% | ▲ +11.23% | $38.40 (+14.97%) |
US Market Status
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