While the buying is concentrated in passive mega-funds (which may reflect index weighting changes rather than active conviction), the scale of the UBS move — a 526% share increase — stands out. Traders should monitor for follow-through from active managers and any upcoming earnings or guidance updates that may have triggered this repositioning.
Executive Summary
Three major passive institutional investors — Morgan Stanley, Wells Fargo, and UBS — significantly increased their positions in Aehr Test Systems (AEHR) during Q4 2024, collectively adding $5.2 million in new exposure with UBS doubling its stake. This coordinated accumulation by large financial institutions suggests growing institutional confidence in AEHR, despite the activity being driven entirely by passive mega-funds rather than active managers.
Key Financial Metrics
Institutional Positions
Net institutional flow: $5.2M
▲ Buyers (3)
| Institution | Action | Change | Position Value | Value Δ |
|---|---|---|---|---|
| Morgan Stanley | ADD | +38.7% | $4.7M | $2.1M |
| Wells Fargo | ADD | +81.7% | $297.0K | $171.0K |
| UBS | DOUBLED | +526.2% | $3.4M | $3.0M |
Key Facts
- Morgan Stanley increased its stake by 38.7%, adding 78.2K shares (value up $2.1M to $4.7M)
- Wells Fargo added 8.0K shares (+81.7%), increasing position value by $171K to $297K
- UBS more than quintupled its holdings (+526.2%), adding 172.7K shares and increasing value by $3.0M to $3.4M
- No institutional selling was detected in this quarter — all tracked institutions added or held
Financial Impact
Three institutions collectively added $5.2M in new positions, increasing total institutional holding value from $3.2M to $8.4M
Risk Factors
- Activity driven by passive institutions may reflect mechanical rebalancing rather than fundamental conviction
- No active hedge funds or value investors participated in the cluster, limiting the strength of the signal
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-AEHR-2024-Q4 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 10, 2026 6w ago | Institutional Cluster | $93.81 | awaiting T+60 | — | — |
Aug 18, 2026 9w ago | Insider Cluster | $123.25 | awaiting T+60 | — | — |
Aug 14, 2026 10w ago | Insider Cluster | $145.61 | awaiting T+60 | — | — |
Aug 13, 2026 10w ago | Insider Cluster | $134.06 | awaiting T+60 | — | — |
Aug 13, 2026 10w ago | Insider Cluster | $134.06 | awaiting T+60 | — | — |
Aug 13, 2026 10w ago | Insider Cluster | $134.06 | awaiting T+60 | — | — |
Aug 11, 2026 10w ago | Insider Cluster | $117.18 | awaiting T+60 | — | — |
Aug 6, 2026 11w ago | Insider Cluster | $103.07 | awaiting T+60 | — | — |
Apr 22, 2026 26w ago | Insider Cluster | $95.51 $98.91 | ▲ +3.56% | ▼ −2.06% | — |
Apr 21, 2026 26w ago | Insider Cluster | $97.36 $77.36 | ▼ −20.54% | ▼ −24.88% | — |
US Market Status
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