AEHR
Aehr Test Systems · Technology · Semiconductors
Momentum inputs (comparable managers):
holder breadth +14.3% ·
share flow +1.6% ·
net new positions +12.5%
· formula
Broad accumulation: rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 1 | -1 | 1.25K | $127,000 | n/a | −1 |
| Q2 2026 | 90 | +19 | 17.68M | $1.69B | +24 | −5 |
| Q1 2026 | 74 | +9 | 15.11M | $558.45M | +13 | −4 |
| Q4 2025 | 65 | -1 | 14.66M | $295.97M | n/a | −1 |
| Q3 2025 | 16 | +5 | 11.08M | $333.51M | +5 | n/a |
| Q2 2025 | 8 | -1 | 9.36M | $121.08M | n/a | −1 |
| Q1 2025 | 6 | -2 | 3.65M | $26.61M | n/a | −2 |
| Q4 2024 | 8 | -1 | 4.50M | $74.92M | +1 | −2 |
| Q3 2024 | 8 | +1 | 3.55M | $45.56M | +1 | n/a |
| Q2 2024 | 7 | n/a | 3.49M | $39.00M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Baillie Gifford ✦ | 1.81M | +8.2% | $23.22M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 2 | Marshall Wace ✦ | 662.12K | New | $8.51M | 0.0% | New | 1 | SEC ↗ ×3 |
| 3 | Geode Capital Management ✦ (passive) | 639.15K | +3.0% | $8.21M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 4 | Wellington Management ✦ | 311.77K | +3.1% | $4.01M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 5 | Millennium Management ✦ | 56.66K | -70.4% | $728,145 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 6 | Two Sigma Investments ✦ | 43.35K | -87.0% | $557,022 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 7 | T. Rowe Price ✦ | 19.94K | +1.4% | $257,000 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 8 | Citadel Advisors ✦ | 5.54K | -98.4% | $71,228 | 0.0% | ▼ Trim | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Marshall Wace | $8.51M | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 189 holders, 22.27M shares, $763.55M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Officer · 3.99K sh · $574,217
Officer · 1.00K sh · $139,000
Officer · 1.00K sh · $134,000
Director · 5.70K sh · $758,264
Director · 5.97K sh · $836,220
Officer · 4.20K sh · $537,600
Officer · 5.47K sh · $697,688
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology