Graphene Investments SAS holds a diversified book of 42 reported positions worth $171.8M as of Q2 2026 (disclosed Jul 20, 2026, a ~20-day 13F lag). This quarter they opened Sharkninja Inc and trimmed Broadcom Inc. Their largest long position is Alphabet Inc-CL A at 8% of the reported non-option book. Cloning the disclosed picks since 2024 would be +34% (+16.8%/yr). That is a simulation of the disclosed long book, not audited returns.
The reported book (valued from quarter-end) returned +38.8%, a 4.6-point gap that is the cost of the ~20-day 13F disclosure lag a real follower can't avoid.
Growth of $10,000 cloning Graphene Investments SAS's disclosed long 13F book, rebalanced on each filing date (so it reflects each quarter's actual reporting lag, ~20 days for the latest filing, with no look-ahead), total-return basis (dividends reinvested), derived from end-of-day prices. “Their reported book” values the same picks from quarter-end, before they were public. S&P 500 is SPY total return over the same window. Excludes shorts, cash, options and non-13F holdings. Not investment advice.
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
+1 sector below the cut, 2% together
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 (an exit at the prior quarter-end), no cost basis
Other tracked managers holding the same core names as Graphene Investments SAS
| Manager / fund | Shared names | Their $ in those |
|---|---|---|
| Hoffman, Alan N Investment Management | 6 / 42 | $147.6M |
| 9823 Capital, L.P. | 4 / 42 | $108.4M |
| Ketron Financial | 7 / 42 | $228.4M |
| Voyager Global Management LP | 4 / 42 | $2.6B |
| Prospect Hill Management, LLC | 4 / 42 | $181.3M |
| Draper Asset Management, LLC | 5 / 42 | $134.9M |
| Hoey Investments, Inc | 20 / 42 | $521.0M |
| Skandinaviska Enskilda Banken AB (publ) | 13 / 42 | $1.8B |
Ranked by the share of each fund's own book sitting in the names it shares with Graphene Investments SAS: only funds sharing at least a tenth of the book qualify. Index giants, bank custody books and market makers are excluded. They hold everything, so their overlap says nothing.
Bars show each position's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | Alphabet cl. A COM | $14.1M | 39.4K | 8.2% | ▲+33% Added · +10K sh | |
| 2 | Nvidia COM | $9.4M | 46.9K | 5.5% | ▲+35% Added · +12K sh | |
| 3 | Microsoft COM | $7.0M | 18.8K | 4.1% | ▲+19% Added · +3K sh | |
| 4 | Apple COM | $6.9M | 24.0K | 4.0% | —Held | |
| 5 | Broadcom COM | $6.2M | 16.3K | 3.6% | ▼−15% Reduced · −3K sh | |
| 6 | BNY Mellon COM | $4.0M | 28.0K | 2.4% | —Held | |
| 7 | SharkNinja COM | $4.0M | 26.1K | 2.3% | ▲New New position | |
| 8 | Iqvia Holdings COM | $3.9M | 20.4K | 2.3% | ▲+21% Added · +4K sh | |
| 9 | Reinsurance Group of America COM | $3.9M | 18.2K | 2.3% | ▲+19% Added · +3K sh | |
| 10 | CDW COM | $3.8M | 27.1K | 2.2% | ▲+7.1% Added · +2K sh | |
| 11 | HCA Healthcare COM | $3.7M | 9.6K | 2.2% | ▲+39% Added · +3K sh | |
| 12 | Dropbox COM | $3.7M | 135.9K | 2.2% | ▲+16% Added · +19K sh | |
| 13 | Corpay COM | $3.7M | 11.2K | 2.2% | ▲+18% Added · +2K sh | |
| 14 | Vertex Pharmaceutical COM | $3.7M | 7.5K | 2.2% | ▲+14% Added · +900 sh | |
| 15 | Motorola Solutions COM | $3.7M | 8.9K | 2.2% | ▲+25% Added · +2K sh | |
| 16 | Waste Management COM | $3.6M | 16.3K | 2.1% | ▲+12% Added · +2K sh | |
| 17 | Itron COM | $3.6M | 41.9K | 2.1% | ▲+23% Added · +8K sh | |
| 18 | Eli Lilly COM | $3.6M | 3.0K | 2.1% | ▼−6.3% Reduced · −200 sh | |
| 19 | Amazon COM | $3.6M | 14.9K | 2.1% | —Held | |
| 20 | McKesson COM | $3.5M | 4.6K | 2.0% | ▲+28% Added · +1K sh | |
| 21 | Jazz Pharmaceuticals COM | $3.5M | 14.4K | 2.0% | ▼−17% Reduced · −3K sh | |
| 22 | Baker Hughes COM | $3.5M | 62.5K | 2.0% | ▲+20% Added · +11K sh | |
| 23 | T-Mobile US COM | $3.4M | 20.5K | 2.0% | ▲+37% Added · +6K sh | |
| 24 | Salesforce COM | $3.4M | 21.8K | 2.0% | ▲+32% Added · +5K sh | |
| 25 | Nucor COM | $3.4M | 15.2K | 2.0% | ▼−19% Reduced · −4K sh | |
| 26 | Gap COM | $3.4M | 181.1K | 2.0% | ▲+57% Added · +66K sh | |
| 27 | Flex COM | $3.4M | 20.8K | 2.0% | ▼−56% Reduced · −26K sh | |
| 28 | Nasdaq COM | $3.4M | 42.6K | 2.0% | ▲+14% Added · +5K sh | |
| 29 | Morgan Stanley COM | $3.3M | 16.0K | 1.9% | ▼−17% Reduced · −3K sh | |
| 30 | Pfizer COM | $3.3M | 138.2K | 1.9% | ▲+18% Added · +22K sh | |
| 31 | Tenable Hldgs COM | $3.3M | 90.2K | 1.9% | ▼−39% Reduced · −59K sh | |
| 32 | Bright Horizons Family Sol. COM | $3.3M | 46.8K | 1.9% | ▲+29% Added · +11K sh | |
| 33 | ATI COM | $3.3M | 16.8K | 1.9% | ▼−16% Reduced · −3K sh | |
| 34 | Burlington Stores COM | $3.3M | 10.4K | 1.9% | —Held | |
| 35 | Onsemi COM | $3.2M | 34.1K | 1.9% | ▼−29% Reduced · −14K sh | |
| 36 | Huntington Ingalls Industries COM | $3.1M | 11.2K | 1.8% | ▲+42% Added · +3K sh | |
| 37 | Nextpower COM | $3.1M | 26.2K | 1.8% | ▲+8.3% Added · +2K sh | |
| 38 | Pinterest COM | $3.1M | 148.4K | 1.8% | —Held | |
| 39 | EOG Resources COM | $3.1M | 24.0K | 1.8% | ▲+18% Added · +4K sh | |
| 40 | UiPath COM | $3.1M | 285.6K | 1.8% | ▲+26% Added · +59K sh | |
| 41 | Vertiv Hldgs COM | $3.1M | 9.2K | 1.8% | ▼−16% Reduced · −2K sh | |
| 42 | Intel COM | $2.9M | 20.8K | 1.7% | ▼−65% Reduced · −38K sh |
This fund page is the Follow view. The Build view lets your agent pull holdings, quarter changes, overlap, and source filings through API or MCP.
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Use Arkolith to show Graphene Investments SAS's latest holdings, largest changes, and filing provenance.
As-of date vs the date the SEC received each filing
Reported 13F total per quarter. Raw filing totals can include option notional.
| Quarter | As of | Filed | Lag | Positions | Value | Form |
|---|---|---|---|---|---|---|
| Q2 2026 | Jun 30, 2026 | Jul 20, 2026 | 20d | 42 | $171.8M | 13F-HR |
| Q1 2026 | Mar 31, 2026 | May 6, 2026 | 36d | 44 | $149.0M | 13F-HR |
| Q4 2025 | Dec 31, 2025 | Jan 27, 2026 | 27d | 44 | $159.5M | 13F-HR |
| Q3 2025 | Sep 30, 2025 | Oct 7, 2025 | 7d | 44 | $158.1M | 13F-HR |
| Q2 2025 | Jun 30, 2025 | Aug 6, 2025 | 37d | 45 | $153.4M | 13F-HR |
| Q1 2025 | Mar 31, 2025 | Apr 24, 2025 | 24d | 45 | $136.9M | 13F-HR |
| Q4 2024 | Dec 31, 2024 | Jan 28, 2025 | 28d | 46 | $144.8M | 13F-HR |
| Q3 2024 | Sep 30, 2024 | Oct 15, 2024 | 15d | 46 | $155.9M | 13F-HR |
Holdings from SEC EDGAR 13F-HR filings, updated quarterly, filed up to 45 days after quarter-end. Public domain. Book totals and portfolio weights cover reported non-option positions, which can include notes and warrants. Disclosed put/call options are listed separately and excluded from those totals. The performance line is a simulation of the disclosed long book, not an audited return.