The cluster is small relative to STM's $43.3B market cap and dominated by asset managers rather than high-conviction activists. Monitor next 13F for any larger fund moves or insider buying to confirm a thesis shift.
Executive Summary
Three asset managers increased STM positions in Q3 2026, led by Truist Financial doubling its stake to $2.6M, while Td Waterhouse Canada nearly exited. The cluster is small in dollar terms ($3.9M total holdings) and lacks insider corroboration, suggesting limited conviction.
Key Financial Metrics
Institutional Positions
Net institutional flow: $2.1M
▲ Buyers (3)
| Institution | Action | Change | Position Value | Value Δ |
|---|---|---|---|---|
| Truist Financial | DOUBLED | +873.9% | $2.6M | $2.2M |
| Wealth Enhancement Advisory Services | ADD | +25.4% | $1.3M | -$109.0K |
| Mather Group | DOUBLED | +479.7% | $18.0K | $14.0K |
▼ Sellers (1)
| Institution | Action | Change | Prev Value | Value Δ |
|---|---|---|---|---|
| Td Waterhouse Canada | NEAR_EXIT | -88.8% | $1.2M | -$1.1M |
Key Facts
- 3 institutional buyers (Truist Financial, Wealth Enhancement Advisory Services, Mather Group) added STM in Q3 2026
- Truist Financial doubled its position (+873.9% shares) to $2.6M
- 1 seller (Td Waterhouse Canada) reduced holdings by 88.8% to $104K
- Net aggregate institutional buying of $2.1M across the cluster
- No open-market insider buying during the period (confluence score 19/100)
Financial Impact
Net institutional buying of $2.1M, with total buyer holdings of $3.9M and seller reduction of $1.1M
Risk Factors
- 13F data is 45+ days stale; positions may have been unwound since quarter-end
- Cluster size is negligible relative to market cap ($3.9M vs $43.3B)
- No insider buying to corroborate institutional conviction
Market Snapshot
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-STM-2026-Q3 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 30, 2026 2d ago | Institutional Cluster | $45.70 | awaiting T+60 | awaiting T+60 | No price |
Oct 29, 2026 3d ago | 6-K | $49.99 | awaiting T+60 | awaiting T+60 | No price |
Oct 29, 2026 3d ago | 6-K | No price | awaiting T+60 | awaiting T+60 | No price |
Oct 29, 2026 3d ago | Press Release | $49.99 | awaiting T+60 | awaiting T+60 | No price |
Oct 26, 2026 6d ago | 6-K | $45.19 | awaiting T+60 | awaiting T+60 | No price |
Oct 19, 2026 13d ago | 6-K | $45.61 | awaiting T+60 | awaiting T+60 | No price |
Oct 19, 2026 13d ago | Press Release | $45.61 | awaiting T+60 | awaiting T+60 | No price |
Oct 13, 2026 19d ago | 6-K | $49.57 | awaiting T+60 | awaiting T+60 | No price |
Oct 13, 2026 19d ago | 6-K | $49.57 | awaiting T+60 | awaiting T+60 | No price |
Oct 5, 2026 27d ago | 6-K | $57.68 | awaiting T+60 | awaiting T+60 | No price |
US Market Status
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