The cluster is dominated by active asset managers on both sides, with no passive/index fund participation. The large trim by Robeco ($99.9M) is the dominant signal in absolute dollars, but the doubling of positions by two smaller managers (Vontobel and Fjarde) suggests a contrarian thesis. Monitor next quarter's 13F for follow-through on either side to confirm conviction.
Executive Summary
Institutional activity in SLB shows a mixed cluster for Q3 2026: three asset managers accumulated $78.0M in new buying (led by Vontobel and Vontobel doubling positions), while four sellers trimmed a net $104.0M, led by Robeco's $99.9M reduction. The net selling pressure is larger in absolute dollar terms, but the buying is concentrated in high-conviction adds from two managers doubling their stakes.
Key Financial Metrics
Institutional Positions
Net institutional flow: -$26.0M
▲ Buyers (3)
| Institution | Action | Change | Position Value | Value Δ |
|---|---|---|---|---|
| Vontobel Holding | DOUBLED | +604.7% | $59.1M | $51.1M |
| Fjarde Ap-Fonden /Fourth Swedish National | DOUBLED | +246.8% | $8.0M | $5.8M |
| Ninety One Uk | ADD | +27.2% | $84.3M | $21.0M |
▼ Sellers (4)
| Institution | Action | Change | Prev Value | Value Δ |
|---|---|---|---|---|
| Robeco Institutional Asset Management B.v. | TRIM | -40.5% | $265.3M | -$99.9M |
| Td Waterhouse Canada | TRIM | -45.4% | $5.6M | -$2.3M |
| Concurrent Investment Advisors | TRIM | -42.8% | $4.4M | -$1.8M |
| Fort Washington Investment Advisors | TRIM | -30.7% | $389.0K | -$106.0K |
Key Facts
- 3 institutional buyers added a net $78.0M in SLB positions during Q3 2026.
- 4 institutional sellers trimmed a net $104.0M, with Robeco Institutional Asset Management alone cutting $99.9M.
- Vontobel Holding doubled its stake by +604.7% ($8.0M → $59.1M, adding $51.1M increase).
- Fjarde Ap-Fonden doubled its position +246.8% ($2.2M → $8.0M.
- Net aggregate net change across all 7 tracked funds was net negative (-$26.0M).
Financial Impact
3 buyers added $78.0M in new positions; 4 sellers reduced by $104.0M, net -$26.0M across the cluster.
Risk Factors
- 13F data is 45 days stale; the cluster may have already been unwound.
- Net selling pressure from Robeco's large trim outweighs the buying in dollar terms.
- No insider or activist or insider buying to corroborate the accumulation thesis.
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-SLB-2026-Q3 |
Track record builds as more directional reports settle.
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 23, 2026 3d ago | 8-K | $49.70 | awaiting T+20 | — | — |
Oct 20, 2026 5d ago | Institutional Cluster | $51.10 | awaiting T+20 | — | — |
Oct 13, 2026 12d ago | 3 | $48.77 | awaiting T+20 | — | — |
Oct 6, 2026 19d ago | 8-K | $47.96 | awaiting T+20 | — | — |
Aug 31, 2026 8w ago | 8-K | $60.10 $49.87 | ▼ −17.02% | ▼ −16.83% | — |
Jul 24, 2026 13w ago | 8-K | $52.42 $53.85 | ▲ +2.72% | ▼ −0.90% | — |
Jun 10, 2026 19w ago | 8-K | $55.51 $47.24 | ▼ −14.90% | ▼ −18.52% | — |
May 29, 2026 21w ago | S-3ASR | $54.27 $46.38 | ▼ −14.53% | ▼ −12.74% | — |
Apr 29, 2026 25w ago | Insider Cluster | $56.88 $54.55 | ▼ −4.10% | ▼ −9.36% | — |
Apr 24, 2026 26w ago | 8-K | $56.15 $57.25 | ▼ −1.96% | ▲ +2.06% | — |
US Market Status
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