The cluster strongly suggests an index-related event (e.g., addition to S&P 600 or Russell 2000). Traders should monitor for index reconstitution announcements and sector catalysts in construction trades (infrastructure spending). Given the 45-day 13F lag, these positions may already be stale—watch for Q1 2026 13F filings to see if the buying persisted.
Executive Summary
Legence Corp. (LGN) saw significant net institutional buying in Q4 2025, with four mega-passive funds (Vanguard, BlackRock, State Street, Morgan Stanley) adding a combined $225.5M in new holdings, while Fidelity trimmed $29.2M. The cluster is dominated by index rebalancing rather than active conviction, but the sheer size (~$196M net inflow, ~2.25% of market cap) suggests a passive catalyst such as index inclusion.
Key Financial Metrics
Institutional Positions
Net institutional flow: $196.3M
▲ Buyers (4)
| Institution | Action | Change | Position Value | Value Δ |
|---|---|---|---|---|
| Vanguard | ADD | +78.1% | $138.9M | $83.1M |
| BlackRock | DOUBLED | +4681360.4% | $106.8M | $106.8M |
| State Street | NEW | +0% | $30.3M | $30.3M |
| Morgan Stanley | DOUBLED | +397.8% | $6.3M | $5.4M |
▼ Sellers (1)
| Institution | Action | Change | Prev Value | Value Δ |
|---|---|---|---|---|
| Fidelity | TRIM | -38.8% | $201.7M | -$29.2M |
Key Facts
- 4 buyers accumulated $282.3M in current holdings vs 1 seller at $172.5M
- Vanguard increased stake by 78.1% to $138.9M
- BlackRock went from ~$2K to $106.8M (essentially a new position)
- State Street initiated a $30.3M position
- Morgan Stanley nearly quadrupled its holding to $6.3M
- Fidelity reduced by 38.8% to $172.5M, selling ~$29.2M
Financial Impact
Net institutional buying of approximately $196.3M, representing about 2.25% of LGN's $8.7B market cap.
Risk Factors
- All buyers are passive/index funds, so the accumulation may reverse upon index changes or rebalancing
- 13F data is 45+ days old; the cluster may have already been unwound
- No active fund involvement reduces the signal's conviction
- Historical calibration for this filing type shows only ~35% probability of positive T+20 returns
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-LGN-2025-Q4 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Aug 13, 2026 7w ago | 8-K | $63.24 $56.65 | ▼ −10.42% | ▼ −8.67% | — |
Aug 9, 2026 7w ago | Institutional Cluster | $64.16 $57.04 | ▼ −11.10% | ▼ −10.18% | — |
Jul 27, 2026 9w ago | Press Release | $67.63 $56.38 | ▼ −16.63% | ▼ −19.93% | — |
Jun 11, 2026 16w ago | 8-K | $86.00 $73.66 | ▼ −14.35% | ▼ −16.13% | — |
Jun 11, 2026 16w ago | Institutional Cluster | $85.12 $73.97 | ▼ −13.10% | ▼ −14.99% | — |
May 14, 2026 20w ago | 8-K | $89.00 $86.00 | ▼ −3.37% | ▼ −2.51% | — |
May 14, 2026 20w ago | Press Release | $89.00 $86.00 | ▼ −3.37% | ▼ −2.51% | — |
May 4, 2026 21w ago | Press Release | $91.41 $86.55 | ▼ −5.32% | ▼ −10.96% | — |
Apr 29, 2026 22w ago | DEFA14A | $80.74 $83.26 | ▲ +3.12% | ▼ −2.93% | — |
Apr 8, 2026 25w ago | 424B4 | $59.75 $102.27 | ▼ −71.16% | ▼ −63.60% | — |
US Market Status
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