The cluster is small and stale (45-day lag). Monitor next 13F filing for signs of continuation or reversal of this accumulation. No immediate catalyst identified.
Executive Summary
Three institutional asset managers accumulated $3.3M net in A10 Networks during Q3 2026, led by a large new position from Robeco (+2514% shares) and a meaningful add by Wasatch Advisors (+28.7%). One small seller trimmed a negligible position. The cluster signals modest institutional interest but is small in absolute dollar terms and stale (45-day lag).
Key Financial Metrics
Institutional Positions
Net institutional flow: $3.3M
▲ Buyers (3)
| Institution | Action | Change | Position Value | Value Δ |
|---|---|---|---|---|
| Wasatch Advisors | ADD | +28.7% | $14.5M | -$1.0M |
| Robeco Institutional Asset Management B.v. | DOUBLED | +2514.5% | $4.5M | $4.3M |
| Nisa Investment Advisors | ADD | +76.7% | $121.0K | $27.0K |
▼ Sellers (1)
| Institution | Action | Change | Prev Value | Value Δ |
|---|---|---|---|---|
| Farther Finance Advisors | TRIM | -41.4% | $86.0K | -$49.0K |
Key Facts
- 3 institutional buyers added $3.3M net in Q3 2026
- Robeco Institutional Asset Management doubled its stake (+2514% shares to $4.5M)
- Wasatch Advisors added 28.7% to a $14.5M position
- Only 1 seller (Farther Finance Advisors) trimmed a tiny $49K position
- Total institutional buying value: $19.2M current holdings vs $15.9M prior
- Net selling was negligible at -$49K
Financial Impact
Three institutions accumulated $3.3M net in ATEN during Q3 2026; one seller reduced by $49K. Total current institutional holdings in the cluster are $19.2M.
Risk Factors
- 13F data is 45+ days stale; positions may have been unwound
- Cluster is small in absolute dollar terms ($3.3M net) — unlikely to move the stock
- No insider buying corroboration to strengthen the signal
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-ATEN-2026-Q3 |
Track record builds as more directional reports settle.
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 20, 2026 6d ago | Institutional Cluster | $25.05 | awaiting T+20 | — | — |
Oct 7, 2026 19d ago | 3 | $27.96 | awaiting T+20 | — | — |
Sep 14, 2026 6w ago | 8-K | $25.61 $28.72 | ▲ +12.14% | ▲ +9.88% | — |
Aug 16, 2026 10w ago | Institutional Cluster | $27.35 $26.75 | ▼ −2.19% | ▼ −0.22% | — |
Aug 6, 2026 11w ago | 8-K | $26.84 $24.59 | ▼ −8.38% | ▼ −7.99% | — |
Jun 11, 2026 19w ago | Institutional Cluster | $32.66 $38.11 | ▲ +16.69% | ▲ +14.80% | — |
May 5, 2026 24w ago | 144 | $26.72 $31.44 | ▲ +17.66% | ▲ +14.88% | — |
May 1, 2026 25w ago | 8-K | $27.04 $31.54 | ▲ +16.64% | ▲ +11.00% | — |
Apr 28, 2026 25w ago | 8-K | $26.63 $29.15 | ▲ +9.46% | ▲ +4.00% | — |
Apr 8, 2026 28w ago | DEFA14A | $25.03 $27.13 | ▲ +8.39% | ▼ −0.15% | — |
US Market Status
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