The cluster is too small and stale (45-day lag) to trade on directly. Monitor upcoming Q4 2026 13F filings for continuation of the selling trend, and watch for any insider buying or earnings catalyst that could reverse the distribution pattern.
Executive Summary
Institutional activity in Primoris Services Corp (PRIM) during Q3 2026 was mixed but tilted bearish: 2 small buyers added $243K while 4 sellers trimmed $881K, for net selling of ~$638K. The selling is concentrated among small asset managers trimming modest positions, while Vontobel Holding added a meaningful $236K. The cluster is small in scale and dominated by passive/quantitative managers, limiting conviction.
Key Financial Metrics
Institutional Positions
Net institutional flow: -$638.0K
▲ Buyers (2)
| Institution | Action | Change | Position Value | Value Δ |
|---|---|---|---|---|
| Vontobel Holding | ADD | +34% | $33.7M | $236.0K |
| Mather Group | ADD | +85% | $24.0K | $7.0K |
▼ Sellers (4)
| Institution | Action | Change | Prev Value | Value Δ |
|---|---|---|---|---|
| Davenport & Co | TRIM | -59.1% | $879.0K | -$609.0K |
| Farther Finance Advisors | TRIM | -33.3% | $411.0K | -$205.0K |
| Nisa Investment Advisors | TRIM | -33.8% | $97.0K | -$49.0K |
| Assetmark | TRIM | -29.7% | $41.0K | -$19.0K |
Key Facts
- Net institutional selling of ~$638K in Q3 2026 (2 buyers added $243K, 4 sellers trimmed $881K)
- Largest buyer: Vontobel Holding added $236K (+34% shares to $33.7M position)
- Largest seller: Davenport & Co trimmed $609K (-59% shares, exiting near fully)
- All 4 sellers are small asset managers trimming positions under $1M each
- No activist, family office, or sovereign wealth fund involvement — all participants are routine asset managers
Financial Impact
Net institutional outflow of ~$638K in Q3 2026, with total buying of $243K vs total selling of $881K. The largest single move was Davenport & Co's $609K trim.
Risk Factors
- 13F data is 45+ days stale; positions may have already been reversed
- All moves are from small asset managers (<$1M positions) — signal-to-noise ratio is low
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-PRIM-2026-Q3 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 21, 2026 6d ago | Institutional Cluster | $66.94 | awaiting T+60 | awaiting T+60 | No price |
Oct 7, 2026 20d ago | 3 | $82.66 | awaiting T+60 | awaiting T+60 | No price |
Oct 7, 2026 20d ago | 3 | $82.66 | awaiting T+60 | awaiting T+60 | No price |
Jun 22, 2026 18w ago | 8-K | $84.95 $76.94 | ▲ +9.43% | ▲ +12.67% | No price |
Jun 1, 2026 21w ago | Insider Cluster | $124.31 $78.18 | ▼ −37.11% | ▼ −38.23% | No price |
May 29, 2026 21w ago | Insider Cluster | $121.44 $74.80 | ▼ −38.41% | ▼ −39.64% | No price |
May 5, 2026 25w ago | 8-K | $101.23 $84.41 | ▲ +16.62% | ▲ +18.68% | No price |
US Market Status
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