The cluster is directionally mixed but the magnitude of buying ($70.1M) far exceeds selling ($13.4M), and the insider buying confluence strengthens the bullish side. Monitor for a catalyst (e.g., earnings or contract win) that could resolve the divergence between the large active buying and the trimming by sophisticated sellers.
Executive Summary
A mixed institutional cluster in AMRC for 2026-Q2 shows 15 buyers adding $70.1M in new positions (led by Millennium's $34.6M increase and UBS's $9.4M add) while 13 sellers trimmed $13.4M (led by Citadel's -$3.6M and Goldman Sachs's -$3.2M). The net $56.7M buying inflow is dominated by active managers and quants, but the concurrent insider buying ($1.2M from C-suite) provides a conviction overlay.
Key Financial Metrics
Institutional Positions
Net institutional flow: $56.7M
▲ Buyers (15)
| Institution | Action | Change | Position Value | Value Δ |
|---|---|---|---|---|
| Millennium | DOUBLED | +489.4% | $41.0M | $34.6M |
| UBS | ADD | +73.6% | $20.0M | $9.4M |
| American Century Companies | ADD | +51.7% | $22.0M | $8.6M |
| Legal & General Group | ADD | +45% | $22.0M | $8.0M |
| Susquehanna International Group | DOUBLED | +560.4% | $5.2M | $4.4M |
▼ Sellers (13)
| Institution | Action | Change | Prev Value | Value Δ |
|---|---|---|---|---|
| Citadel | TRIM | -69.2% | $5.4M | -$3.6M |
| Goldman Sachs | TRIM | -52% | $6.6M | -$3.2M |
| Panagora Asset Management | TRIM | -69.1% | $3.2M | -$2.1M |
| Erste Asset Management | TRIM | -37.7% | $3.6M | -$1.2M |
| Bnp Paribas Financial Markets | TRIM | -33.4% | $3.9M | -$1.1M |
Key Facts
- 15 institutional buyers added $70.1M in new AMRC positions during 2026-Q2
- 13 institutional sellers reduced holdings by $13.4M
- Millennium Management was the largest buyer, nearly quintupling its position to $41.0M (Δ+$34.6M)
- Citadel and Goldman Sachs were the largest sellers, trimming $3.6M and $3.2M respectively
- Insider buying of $1.2M (incl. C-suite) provides conviction overlay per 13F × Form 4 confluence score of 88/100
Financial Impact
Net institutional buying of ~$56.7M (15 buyers adding $70.1M vs 13 sellers trimming $13.4M)
Risk Factors
- 13F data has 45-day reporting lag; positions may have been unwound since quarter-end
- Mixed seller list includes quant funds (Citadel, Qube) that may have short-term edge
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-AMRC-2026-Q2 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 13, 2026 13d ago | SC 13G/A | $20.11 $20.09 | ▲ +0.10% | ▲ +0.38% | — |
Oct 8, 2026 18d ago | SC 13G | $21.01 $21.33 | ▲ +1.52% | ▲ +0.92% | — |
Sep 10, 2026 6w ago | 8-K | $23.78 $22.68 | ▼ −4.63% | ▼ −4.18% | — |
Sep 3, 2026 7w ago | GOVT-CONTRACT | $23.15 $23.93 | ▲ +3.37% | ▲ +3.92% | — |
Sep 1, 2026 8w ago | Insider Cluster | $22.60 $21.82 | ▼ −3.45% | ▼ −3.90% | — |
Aug 27, 2026 8w ago | Insider Cluster | $21.99 $22.12 | ▲ +0.59% | ▲ +0.89% | — |
Aug 26, 2026 8w ago | Insider Cluster | $22.91 $21.99 | ▼ −4.02% | ▼ −3.79% | — |
Aug 25, 2026 9w ago | Institutional Cluster | $22.07 $22.16 | ▲ +0.41% | ▲ +0.39% | — |
Aug 25, 2026 9w ago | GOVT-CONTRACT | $22.16 $22.91 | ▲ +3.38% | ▲ +2.73% | — |
Aug 11, 2026 10w ago | Insider Cluster | $27.61 $27.79 | ▲ +0.65% | ▼ −0.05% | — |
US Market Status
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