The near-exit pattern across 4 of 6 sellers suggests a shared catalyst-driven thesis — possibly related to Q3 earnings risk, sector headwinds, or a specific company event. Monitor upcoming 10-Q for revenue/earnings trends and any guidance revision that could validate the selling.
Executive Summary
A bearish institutional cluster formed in MASTEC INC (MTZ) during Q3 2026, with 6 sellers reducing holdings by a net $71.5M against a single new buyer of $28.6M. The selling is concentrated among asset managers executing near-exits, suggesting a coordinated de-risking or negative thesis on the company's near-term outlook.
Key Financial Metrics
Institutional Positions
Net institutional flow: -$42.9M
▲ Buyers (1)
| Institution | Action | Change | Position Value | Value Δ |
|---|---|---|---|---|
| Davenport & Co | NEW | +100% | $28.6M | $28.6M |
▼ Sellers (6)
| Institution | Action | Change | Prev Value | Value Δ |
|---|---|---|---|---|
| Vontobel Holding | NEAR_EXIT | -90.2% | $52.1M | -$49.5M |
| Td Waterhouse Canada | NEAR_EXIT | -98.4% | $12.3M | -$12.2M |
| Nisa Investment Advisors | NEAR_EXIT | -92.7% | $5.9M | -$5.6M |
| Pensiondanmark Pensionsforsikringsaktieselskab | TRIM | -34.8% | $5.5M | -$3.7M |
| Farther Finance Advisors | TRIM | -71.6% | $474.0K | -$405.0K |
| Mather Group | NEAR_EXIT | -85% | $42.0K | -$38.0K |
Key Facts
- 6 institutional sellers reduced aggregate holdings by $71.5M net
- 1 new buyer (Davenport & Co) initiated a $28.6M position
- 4 of 6 sellers executed near-exits (85-98% reductions)
- Largest seller: Vontobel Holding exited $49.5M (90.2% reduction)
- Td Waterhouse Canada reduced by $12.2M (98.4% reduction)
- All 6 sellers are asset managers — no passive/index fund dominance
Financial Impact
Net institutional selling of $71.5M, with $28.6M in new buying offset, resulting in a net outflow of $42.9M from tracked institutions
Risk Factors
- 13F data is 45+ days stale; positions may have been rebuilt or fully exited since quarter-end
- Single new buyer (Davenport & Co) provides a contrarian signal that could indicate value-oriented accumulation
Investment Themes
Documents Analyzed
This report is based on 1 institutional 13F filing from SEC EDGAR.
| Document | Accession Number |
|---|---|
| INST-CLUSTER Data (Synthetic) | inst-cluster-MTZ-2026-Q3 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 20, 2026 6d ago | Institutional Cluster | $180.96 $171.55 | ▲ +5.20% | ▲ +4.02% | — |
Aug 10, 2026 11w ago | 8-K | $272.65 $281.11 | ▲ +3.10% | ▲ +2.85% | — |
Aug 10, 2026 11w ago | 424B5 | $272.65 $281.11 | ▼ −3.10% | ▼ −2.85% | — |
Jul 20, 2026 14w ago | 8-K | $351.40 $357.35 | ▲ +1.69% | ▲ +1.81% | — |
Jul 7, 2026 15w ago | 8-K | $382.90 $384.72 | ▲ +0.48% | ▼ −0.37% | — |
May 28, 2026 21w ago | Court Ruling | $378.37 $362.09 | ▼ −4.30% | ▼ −4.58% | — |
May 28, 2026 21w ago | Court Ruling | $378.37 $362.09 | ▼ −4.30% | ▼ −4.58% | — |
Apr 30, 2026 25w ago | 8-K | $417.41 $425.39 | ▲ +1.91% | ▲ +2.25% | — |
US Market Status
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