The cluster suggests active managers see value in AME, but past bullish calls on this ticker have underperformed. Watch for insider open-market buying or earnings catalysts to confirm the thesis before adding exposure. The 13F lag means positions may have already been adjusted.
Executive Summary
Six institutional investors accumulated $141.2M in AME during Q2 2026, led by Robeco Institutional Asset Management (doubled to $126.3M) and Assenagon Asset Management (doubled to $38.4M), while three sellers exited or trimmed $17.6M. The net $123.6M accumulation by active managers signals conviction in AME's industrial instrumentation franchise, though the 45-day 13F lag and past over-scoring on this ticker warrant caution.
Key Financial Metrics
Institutional Positions
Net institutional flow: $123.6M
▲ Buyers (6)
| Institution | Action | Change | Position Value | Value Δ |
|---|---|---|---|---|
| Robeco Institutional Asset Management B.v. | DOUBLED | +112.1% | $126.3M | $73.5M |
| Factory Mutual Insurance | ADD | +29.8% | $68.2M | $21.6M |
| Assenagon Asset Management | DOUBLED | +2687.2% | $38.4M | $37.2M |
▼ Sellers (3)
| Institution | Action | Change | Prev Value | Value Δ |
|---|---|---|---|---|
| Mediolanum International Funds | EXIT | -100% | $16.9M | -$16.9M |
| Gateway Investment Advisers | TRIM | -27.2% | $1.9M | -$345.8K |
| Banque Pictet & Cie | TRIM | -57.9% | $622.0K | -$326.4K |
Key Facts
- 6 buyers added $141.2M in AME shares; 3 sellers reduced $17.6M
- Robeco Institutional Asset Management doubled its stake to $126.3M (+$73.5M)
- Assenagon Asset Management increased holdings 27x to $38.4M (+$37.2M)
- Factory Mutual Insurance added 29.8% to $68.2M (+$21.6M)
- Mediolanum International Funds fully exited a $16.9M position
- All participants are active asset managers; no passive/index funds in the cluster
Financial Impact
Net institutional accumulation of $123.6M (0.22% of $55.3B market cap) from 6 buyers adding $141.2M and 3 sellers reducing $17.6M
Risk Factors
- 13F filings have a 45-day reporting lag; the cluster may have been partially unwound
- Historical model calls on AME have shown negative average alpha vs SPY at T+20
- No insider buying corroboration (confluence score 37/100, institutions only)
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-AME-2026-Q2 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Aug 26, 2026 5w ago | 8-K | $243.67 $247.74 | ▲ +1.67% | ▲ +2.18% | — |
Aug 26, 2026 5w ago | Press Release | $243.67 $247.74 | ▲ +1.67% | ▲ +2.18% | — |
Aug 12, 2026 7w ago | Insider Cluster | $258.52 $234.24 | ▼ −9.39% | ▼ −7.49% | — |
Aug 11, 2026 7w ago | 8-K | $256.30 $236.27 | ▼ −7.82% | ▼ −6.76% | — |
Aug 7, 2026 8w ago | Press Release | $253.66 $237.72 | ▼ −6.28% | ▼ −5.89% | — |
Aug 4, 2026 8w ago | 8-K | $254.05 $231.32 | ▼ −8.95% | ▼ −7.71% | — |
Jul 24, 2026 10w ago | Institutional Cluster | $241.97 $239.55 | ▼ −1.00% | ▼ −4.63% | — |
Jul 16, 2026 11w ago | Press Release | $237.30 $256.22 | ▲ +7.97% | ▲ +4.36% | — |
Jun 15, 2026 15w ago | Court Ruling | $230.45 $232.10 | ▲ +0.72% | ▲ +1.47% | — |
Jun 12, 2026 15w ago | 8-K | $227.12 $233.98 | ▲ +3.02% | ▲ +1.24% | — |
US Market Status
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