MBBC Marathon Bancorp, Inc. /MD/
Price Chart
Executive Summary
Two insiders at MBBC (President/CEO Zillges and EVP/CAO Spatz) have been aggressively buying shares, totaling ~$71K over the past week including today's cluster. The CEO and CAO have purchased on every trading day from June 5-10, a concentrated accumulation pattern. While the dollar amount is modest relative to the $42M market cap (~0.17%), the unanimity, frequency, and C-suite involvement elevate the signal.
Key Financial Metrics
Actionable Insight
Two senior insiders buying consistently across multiple days at increasing prices ($14.24-$14.75) signals conviction near current levels. For a micro-cap bank, this pattern often precedes or accompanies improving fundamentals or a catalyst. Monitor the next 10-Q for deposit trends and loan growth.
Key Facts
- Cluster filings over 2026-06-05 to 2026-06-10 show 8 open-market buys by CEO Zillges and CAO Spatz totaling ~$71K
- Today's cluster (2026-06-10) adds 2 buys: CEO bought 170 shares at $14.75 ($2.5K) and CAO bought 602 shares at $14.75 ($8.9K)
- Both insiders have purchased on each trading day the past 4 sessions, an unusually consistent accumulation pattern
- Total insider buying in the last 30 days is 10 buys totaling $58K, nearly all by these two executives
- At a $42M market cap, the ~$71K cluster is ~0.17% of market cap — modest by proportionality but notable for a micro-cap thrift
Financial Impact
Cluster of ~$71K in open-market purchases by President/CEO and EVP/CAO over 4 consecutive trading days; no cash impact to the company
Risk Factors
- Micro-cap banks have low liquidity — the insider signal may reflect subjective value rather than near-term catalysts
- Prior MBBC reports had poor historical T+20 performance (-9.82% average), cautioning against over-weighting the signal
- $71K is a meaningful fraction of annual salary for insiders at a micro-cap but still modest in absolute terms
Market Snapshot
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-MBBC-1781215315499 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
|
Jun 11, 2026
1d ago
|
Insider Cluster
| $14.16 awaiting T+5 | awaiting T+5 | — | $14.29 (+0.95%) |
|
May 28, 2026
15d ago
|
8-K
| $13.84 $14.40 | ▲ +4.05% | ▲ +6.57% | $14.29 (+3.25%) |
|
Apr 24, 2026
7w ago
|
8-K
| $14.97 $14.25 | ▼ −4.81% | ▼ −5.72% | $14.29 (−4.54%) |
US Market Status
Subscribe to SecBot
Get Real-Time SEC Filing Intelligence
Comprehensive SEC filing analysis delivered the moment filings hit EDGAR. Sentiment scoring, impact analysis, and actionable insights for every material event.
Try SecBot Free Coming soon: SecBot Pro with alerts, watchlists, and API access