Robeco Schweiz AG holds a diversified book of 126 stocks worth $4.7B as of Q1 2026 (disclosed May 7, 2026, a ~45-day 13F lag). This quarter they opened Enphase Energy Inc and trimmed Vertiv Holdings Co-A. Their largest long position is Vertiv Holdings Co-A at 4% of the equity book.
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Use Arkolith to show Robeco Schweiz AG's latest holdings, largest changes, and filing provenance.
Top-heavy: diversified book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
100% mapped to company sectors
Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.
Estimated $ traded · quarter-end prices, no cost basis
Bars show each stock's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | Vertiv Holdings Co COM CL A | $181.2M | 723.0K | 3.8% | ▼−17% Reduced · −151K sh | |
| 2 | Quanta Svcs Inc COM | $177.5M | 323.3K | 3.8% | ▲+1.0% Added · +3K sh | |
| 3 | Nvent Elec PLC SHS | $168.5M | 1.42M | 3.6% | ▲+0.9% Added · +13K sh | |
| 4 | Arm Holdings PLC SPONSORED ADS | $152.4M | 1.01M | 3.2% | ▲+52% Added · +345K sh | |
| 5 | Lumentum Hldgs Inc COM | $151.0M | 214.8K | 3.2% | ▼−46% Reduced · −185K sh | |
| 6 | Agilent Technologies Inc COM | $127.4M | 1.12M | 2.7% | ▲+6.5% Added · +68K sh | |
| 7 | First Solar Inc COM | $127.4M | 645.7K | 2.7% | ▲+20% Added · +107K sh | |
| 8 | Analog Devices Inc COM | $125.3M | 394.0K | 2.7% | ▲+29% Added · +89K sh | |
| 9 | Autodesk Inc COM | $122.8M | 513.0K | 2.6% | ▲+1.1% Added · +6K sh | |
| 10 | On Semiconductor Corp COM | $121.5M | 1.96M | 2.6% | ▲+50% Added · +657K sh | |
| 11 | Marvell Technology Inc COM | $119.1M | 1.20M | 2.5% | ▲+30% Added · +279K sh | |
| 12 | Regal Rexnord Corporation COM | $107.3M | 573.1K | 2.3% | ▲+1.0% Added · +6K sh | |
| 13 | Monolithic PWR Sys Inc COM | $103.9M | 95.0K | 2.2% | ▼~0% Reduced · −25 sh | |
| 14 | Nextpower Inc CLASS A COM | $103.5M | 858.2K | 2.2% | ▼−5.2% Reduced · −47K sh | |
| 15 | Generac Hldgs Inc COM | $93.2M | 477.0K | 2.0% | ▲+27% Added · +103K sh | |
| 16 | Itron Inc COM | $85.3M | 951.7K | 1.8% | ▲+125% Added · +529K sh | |
| 17 | Lattice Semiconductor Corp COM | $83.6M | 901.2K | 1.8% | ▲+1.0% Added · +9K sh | |
| 18 | Xylem Inc COM | $83.4M | 697.7K | 1.8% | ▼−8.5% Reduced · −65K sh | |
| 19 | Carlisle Cos Inc COM | $83.3M | 249.6K | 1.8% | ▲+1.0% Added · +3K sh | |
| 20 | Veralto Corp COM SHS | $75.2M | 850.3K | 1.6% | ▲+16% Added · +117K sh | |
| 21 | Trane Technologies PLC SHS | $72.6M | 174.2K | 1.5% | ▲+44% Added · +53K sh | |
| 22 | Idex Corp COM | $71.9M | 379.1K | 1.5% | ▼−8.1% Reduced · −34K sh | |
| 23 | Tetra Tech Inc New COM | $68.9M | 2.29M | 1.5% | ▼−2.5% Reduced · −60K sh | |
| 24 | Procore Technologies Inc COM | $66.6M | 1.17M | 1.4% | ▲+1.0% Added · +12K sh | |
| 25 | Thermo Fisher Scientific Inc COM | $64.2M | 130.7K | 1.4% | ▲+13% Added · +16K sh | |
| 26 | Sunrun Inc COM | $57.3M | 4.22M | 1.2% | ▲+43% Added · +1.3M sh | |
| 27 | Danaher Corp Del COM | $54.6M | 287.9K | 1.2% | ▲+6.9% Added · +19K sh | |
| 28 | Ferguson Enterprises Inc COMMON STOCK NEW | $54.3M | 232.7K | 1.1% | ▼−7.1% Reduced · −18K sh | |
| 29 | Brookfield Renewable Corp CL A EX SUB VTG | $53.5M | 1.34M | 1.1% | ▲+1.0% Added · +14K sh | |
| 30 | Sociedad Quimica Y Minera De SPON ADR SER B | $49.9M | 616.5K | 1.1% | ▼−10% Reduced · −69K sh | |
| 31 | Ecolab Inc COM | $49.5M | 186.2K | 1.0% | ▼−19% Reduced · −45K sh | |
| 32 | Emcor Group Inc COM | $47.4M | 64.3K | 1.0% | ▲+42% Added · +19K sh | |
| 33 | Power Integrations Inc COM | $44.6M | 870.2K | 0.9% | ▲+39% Added · +243K sh | |
| 34 | Comfort Sys USA Inc COM | $43.4M | 31.5K | 0.9% | ▼−3.7% Reduced · −1K sh | |
| 35 | Waters Corp COM | $43.1M | 144.9K | 0.9% | ▲+9.7% Added · +13K sh | |
| 36 | Api Group Corp COM STK | $42.5M | 1.05M | 0.9% | ▼−25% Reduced · −353K sh | |
| 37 | Advanced Drain Sys Inc Del COM | $42.3M | 308.4K | 0.9% | ▼−15% Reduced · −56K sh | |
| 38 | Applied Indl Technologies In COM | $41.1M | 155.0K | 0.9% | ▲+3.5% Added · +5K sh | |
| 39 | Teradyne Inc COM | $40.2M | 135.7K | 0.9% | ▼−45% Reduced · −109K sh | |
| 40 | Enphase Energy Inc COM | $39.8M | 1.05M | 0.8% | ▲New New position | |
| 41 | Waste Mgmt Inc Del COM | $39.2M | 170.8K | 0.8% | ▼−45% Reduced · −139K sh | |
| 42 | Jacobs Solutions Inc COM | $38.6M | 303.3K | 0.8% | ▲+13% Added · +35K sh | |
| 43 | Core & Main Inc CL A | $37.6M | 760.8K | 0.8% | ▼−7.0% Reduced · −58K sh | |
| 44 | Corning Inc COM | $35.7M | 262.5K | 0.8% | ▲+54% Added · +92K sh | |
| 45 | Bloom Energy Corp COM CL A | $35.4M | 261.1K | 0.7% | ▲New New position | |
| 46 | Albemarle Corp COM | $35.0M | 194.9K | 0.7% | ▼−40% Reduced · −131K sh | |
| 47 | Avantor Inc COM | $32.8M | 4.19M | 0.7% | ▼−42% Reduced · −3.1M sh | |
| 48 | AECOM COM | $31.5M | 371.9K | 0.7% | ▼−2.3% Reduced · −9K sh | |
| 49 | Solv Energy Inc COM SHS CL A | $30.2M | 1.00M | 0.6% | ▲New New position | |
| 50 | Coherent Corp COM | $27.3M | 114.4K | 0.6% | ▲+99% Added · +57K sh |
As-of date vs the date the SEC received each filing
| Quarter | As of | Filed | Positions | Value | Form |
|---|---|---|---|---|---|
| Q1 2026 | Mar 31, 2026 | May 7, 2026 | 126 | $4.7B | 13F-HR |
| Q4 2025 | Dec 31, 2025 | Feb 3, 2026 | 129 | $4.5B | 13F-HR |
| Q3 2025 | Sep 30, 2025 | Oct 27, 2025 | 128 | $4.4B | 13F-HR |
| Q2 2025 | Jun 30, 2025 | Aug 7, 2025 | 126 | $4.3B | 13F-HR |
| Q1 2025 | Mar 31, 2025 | Apr 30, 2025 | 129 | $4.1B | 13F-HR |
| Q4 2024 | Dec 31, 2024 | Feb 5, 2025 | 120 | $4.7B | 13F-HR |
| Q3 2024 | Sep 30, 2024 | Nov 4, 2024 | 120 | $5.3B | 13F-HR |
| Q2 2024 | Jun 30, 2024 | Aug 8, 2024 | 122 | $5.2B | 13F-HR |
| Q1 2024 | Mar 31, 2024 | Apr 25, 2024 | 120 | $5.7B | 13F-HR |
| Q4 2023 | Dec 31, 2023 | Feb 14, 2024 | 119 | $6.0B | 13F-HR |
| Q3 2023 | Sep 30, 2023 | Nov 8, 2023 | 122 | $5.9B | 13F-HR |
| Q2 2023 | Jun 30, 2023 | Aug 14, 2023 | 120 | $6.7B | 13F-HR |
| Q1 2023 | Mar 31, 2023 | May 8, 2023 | 121 | $6.2B | 13F-HR |
| Q4 2022 | Dec 31, 2022 | Feb 7, 2023 | 119 | $5.5B | 13F-HR |
| Q3 2022 | Sep 30, 2022 | Nov 10, 2022 | 156 | $5.1B | 13F-HR |
| Q2 2022 | Jun 30, 2022 | Aug 3, 2022 | 154 | $5.6B | 13F-HR |
| Q1 2022 | Mar 31, 2022 | May 13, 2022 | 153 | $7.1B | 13F-HR |
| Q4 2021 | Dec 31, 2021 | Feb 8, 2022 | 149 | $7.7B | 13F-HR |
| Q3 2021 | Sep 30, 2021 | Oct 13, 2021 | 152 | $8.6B | 13F-HR |
| Q2 2021 | Jun 30, 2021 | Jul 15, 2021 | 151 | $7.2B | 13F-HR |
| Q1 2021 | Mar 31, 2021 | May 4, 2021 | 151 | $6.5B | 13F-HR |
| Q4 2020 | Dec 31, 2020 | Feb 16, 2021 | 155 | $4.7B | 13F-HR |
| Q3 2020 | Sep 30, 2020 | Oct 13, 2020 | 151 | $3.4B | 13F-HR |
| Q2 2020 | Jun 30, 2020 | Jul 7, 2020 | 143 | $2.8B | 13F-HR |
Holdings from SEC EDGAR 13F-HR filings, updated quarterly ~45 days after quarter-end. Public domain. The book and weighting are long equity only; disclosed put/call options are listed separately and excluded from those totals. Price-derived performance is withheld until the price-source policy and freshness gate are green.