The cluster is dominated by active managers (not index funds), increasing signal quality. Monitor upcoming 13F filings and insider Form 4 activity for corroboration. If no insider selling accompanies this accumulation, the thesis is strengthened. The 45-day lag means the positions may already be partially unwound — watch for any negative news flow that could have reversed this cluster.
Executive Summary
Seven institutional asset managers accumulated $149.1M in net new Atlassian (TEAM) positions during Q3 2026, with six firms at least doubling their stakes. The sole seller, Vontobel Holding, trimmed a modest $5.8M position. This is a rare, high-conviction cluster of active managers independently adding to the same stock, suggesting a shared thesis around Atlassian's cloud migration, AI monetization, or valuation reset.
Key Financial Metrics
Institutional Positions
Net institutional flow: $149.1M
▲ Buyers (7)
| Institution | Action | Change | Position Value | Value Δ |
|---|---|---|---|---|
| Artemis Investment Management | ADD | +53% | $82.7M | $59.3M |
| Assenagon Asset Management | DOUBLED | +111.7% | $84.1M | $66.9M |
| Concurrent Investment Advisors | DOUBLED | +172.3% | $2.4M | $2.0M |
| Td Waterhouse Canada | DOUBLED | +660.3% | $12.6M | $11.9M |
| Nisa Investment Advisors | DOUBLED | +456.3% | $2.8M | $2.6M |
| Abn Amro Investment Solutions | DOUBLED | +149.1% | $3.3M | $2.8M |
| Hb Wealth Management | DOUBLED | +107.7% | $4.7M | $3.7M |
▼ Sellers (1)
| Institution | Action | Change | Prev Value | Value Δ |
|---|---|---|---|---|
| Vontobel Holding | TRIM | -73.4% | $14.9M | -$5.8M |
Key Facts
- 7 buyers added $149.1M net; 1 seller reduced $5.8M
- Assenagon Asset Management doubled holdings (+111.7%) to $84.1M; Artemis Investment added $59.3M to $82.7M
- Td Waterhouse Canada increased stake 660% to $12.6M
- All buyers are active asset managers — no passive/index fund participation
- 13F data is ~45 days stale; positions may have been adjusted since quarter-end
Financial Impact
Seven institutions accumulated $192.7M in aggregate positions, a net increase of $149.1M. One seller reduced by $5.8M. The buying represents a significant conviction signal but is small relative to TEAM's ~$40B market cap.
Risk Factors
- 13F data is 45+ days stale — cluster may have been partially or fully unwound
- No activist or insider buying to corroborate the institutional signal
- Atlassian's cloud migration and AI monetization progress are key to thesis validation
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-TEAM-2026-Q3 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 23, 2026 3d ago | Institutional Cluster | $227.61 $223.42 | ▼ −1.84% | ▼ −2.55% | — |
Oct 14, 2026 12d ago | DEFA14A | $217.12 $207.82 | ▼ −4.28% | ▼ −3.18% | — |
Oct 14, 2026 12d ago | DEF 14A | $217.12 $207.82 | ▼ −4.28% | ▼ −3.18% | — |
Aug 20, 2026 9w ago | Insider Cluster | $171.81 $171.33 | ▼ −0.28% | ▲ +0.01% | — |
Aug 17, 2026 10w ago | Insider Cluster | $163.00 $174.23 | ▲ +6.89% | ▲ +6.68% | — |
Jun 11, 2026 19w ago | Institutional Cluster | $89.20 $88.52 | ▼ −0.76% | ▼ −1.30% | — |
May 21, 2026 22w ago | Insider Cluster | $85.41 $84.84 | ▼ −0.67% | ▼ −1.25% | — |
May 20, 2026 22w ago | Insider Cluster | $82.10 $85.41 | ▲ +4.03% | ▲ +3.59% | — |
May 15, 2026 23w ago | Insider Cluster | $89.19 $86.54 | ▼ −2.97% | ▼ −2.32% | — |
Mar 11, 2026 32w ago | 8-K | $73.05 $75.09 | ▲ +2.79% | ▲ +3.39% | — |
US Market Status
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