Monitor for any further increases or a potential conversion to a Schedule 13D, which would signal activist intent. The passive certification suggests no near-term control activity, but the increased stake warrants attention.
Price Chart
Executive Summary
Brown Advisory Inc. filed an amended Schedule 13G disclosing a 10.72% passive stake in Andersen Group Inc. as of September 30, 2026, up from the prior filing's undisclosed level. The filing confirms continued passive intent with no activist agenda.
Key Financial Metrics
Key Facts
- Brown Advisory Inc. reported beneficial ownership of 1,459,256 shares of Andersen Group Inc. Class A common stock.
- The stake represents 10.72% of the outstanding shares as of September 30, 2026.
- The filing is an amendment to a prior Schedule 13G, indicating an increase from the previous filing.
- Brown Advisory certifies the securities were acquired and are held in the ordinary course of business, not for changing or influencing control.
- The filing is made under Rule 13d-1(b), confirming passive investor status.
Financial Impact
Brown Advisory increased its stake to 10.72% of Andersen Group Inc. as of September 30, 2026. No dollar value of the stake is disclosed in the filing.
Risk Factors
- Brown Advisory could later convert to an activist 13D filer, potentially pressuring management.
- A decrease in the stake below 5% would signal reduced conviction and could pressure the stock.
- The filing does not disclose the purchase price or timing of the stake increase, limiting insight into cost basis.
Investment Themes
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| SC 13G/A Filing (Primary) | 0001345929-26-000040 |
| Document: 0001345929-26-000040-index.html | 0001345929-26-000040 |
| Document: 0001345929-26-000040.txt | 0001345929-26-000040 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 16, 2026 10d ago | SC 13G/A | $58.27 | awaiting T+20 | — | $64.18 (+10.14%) |
Oct 15, 2026 11d ago | 8-K | $58.27 | awaiting T+20 | — | $64.18 (+10.14%) |
Oct 14, 2026 12d ago | 8-K | $58.95 | awaiting T+20 | — | $64.18 (+8.87%) |
Oct 7, 2026 19d ago | SC 13G/A | $55.34 | awaiting T+20 | — | $64.18 (+15.97%) |
Aug 20, 2026 9w ago | EFFECT | $50.32 $54.99 | ▲ +9.28% | ▲ +9.28% | $64.18 (+27.54%) |
Aug 17, 2026 10w ago | S-1 | $45.75 $55.13 | ▲ +20.49% | ▲ +21.48% | $64.18 (+40.28%) |
Jun 29, 2026 17w ago | 8-K | $37.72 $46.94 | ▲ +24.44% | ▲ +25.47% | $64.18 (+70.15%) |
Apr 30, 2026 25w ago | DEFA14A | $35.38 $38.31 | ▲ +8.28% | ▲ +3.31% | $64.18 (+81.40%) |
Apr 28, 2026 25w ago | 3 | $33.92 $38.31 | ▲ +12.94% | ▲ +6.89% | $64.18 (+89.21%) |
US Market Status
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