Aschenbrenner Public AI Infrastructure Basket
A source-gated Santro basket tracking publicly disclosed and reputable-media-reported AI infrastructure and power/energy positions linked to Leopold Aschenbrenner and Situational Awareness LP. His public thesis: the AI bottleneck isn't models — it's electricity and compute, so the basket spans power producers as well as data-center and cloud names.
This is not a complete or current portfolio. It is a public market tracker built from filings, reputable reporting, and Santro verification — we list what was disclosed and when, not estimated position sizes.
Hot means attention, not direction.
Disclosure basis & dates
What this basket is built on, and when each position was disclosed or reported. We track the date of disclosure, not an estimated weight or live position.
Per-holding disclosure dates are in the Date disclosed column below.
Holdings — publicly disclosed & reputable-media-reported
Reported public positions with a source link, a confidence level and the date each was disclosed or reported. Power/energy names carry an energy tag. We do not show or estimate position sizes or live moves.
| Ticker | Company | Sector | AI relevance | Confidence | Source status | Source | Date disclosed | Notes |
|---|---|---|---|---|---|---|---|---|
| NBIS | Nebius Group | AI cloud / compute | AI infrastructure, cloud compute, data centers (neocloud) | High | reputable media reported | The Motley Fool | 2026-06-01 | Reported 5.6% stake (12.4M Class A shares) via an SEC 13G filing by Situational Awareness LP. |
| BE energy | Bloom Energy | On-site power / fuel cells | On-site power generation for AI data centers | High | reputable media reported | Fortune | 2026-03-05 | Reported as the fund's single largest holding; stake raised sharply (≈+1,488% shares) in Q1 2026. |
| VST energy | Vistra | Power generation (gas + nuclear) | Electricity for AI data-center build-outs | Medium | reputable media reported | Fortune | 2026-03-05 | Named among the fund's major power-producer positions (~23% weight in the prior quarter's filing). |
| CEG energy | Constellation Energy | Nuclear power | Baseload electricity for AI compute | Medium | reputable media reported | Fortune | 2026-03-05 | Named among the fund's major power-producer positions (~8% weight in the prior quarter's filing). |
| CRWV | CoreWeave | AI cloud / compute | Neocloud GPU compute, AI infrastructure | Medium | reputable media reported | The Motley Fool | 2026-06-01 | Named as a meaningful position in competing neoclouds alongside IREN. |
| IREN | IREN Limited | AI / HPC infrastructure | AI/HPC infrastructure, power & data-center exposure | Medium | reputable media reported | The Motley Fool | 2026-06-01 | Named as a meaningful position in competing neoclouds alongside CoreWeave. |
| CORZ | Core Scientific | Data center / compute | Crypto-mining capacity converting to AI hosting | Medium | reputable media reported | Fortune | 2026-03-05 | Named among data-infrastructure / crypto-mining firms in the fund's reported book. |
| APLD | Applied Digital | Data center / AI hosting | Data-center capacity / AI hosting build-out | Medium | reputable media reported | Fortune | 2026-03-05 | Named among data-infrastructure / crypto-mining firms in the fund's reported book. |
| CIFR | Cipher Mining | Compute / AI hosting | Mining capacity converting to AI / HPC hosting | Medium | reputable media reported | Fortune | 2026-03-05 | Named as another large crypto-mining firm in the fund's reported book. |
Needs verification
Reported or discussed in connection with the same thesis, but awaiting a stronger source before being treated as a main basket holding.
| Ticker | Company | Sector | AI relevance | Confidence | Source status | Notes |
|---|---|---|---|---|---|---|
| SNDK | Sandisk | Memory / storage | Memory & storage infrastructure for AI | Medium | needs verification | Listed as a top position by 13F aggregators, but not yet named in a reputable narrative source Santro has reviewed. awaiting reputable confirmation |
Hypothesis watchlist — the energy thesis
Aschenbrenner argues publicly (his Situational Awareness essay; the Dwarkesh interview) that electricity is the real AI bottleneck — a 100GW cluster could need ~20% of US power. These are thesis areas, not confirmed individual positions, and are kept separate from the holdings above.
What the thesis points at — "what models and chips cannot run without": electricity generation, grid interconnects and long-term capacity contracts, cooling, fibre, and land. He has publicly flagged natural gas and nuclear as the most build-able paths to AI-scale power.
Thesis context from public talks/essays — Santro does not assert these as positions.
Excluded / hedge mentions
These names appear in reporting as hedges, shorts or put options, not as long positions. They are not shown as long basket holdings. The fund's largest reported 13F lines are puts on this group.
| Ticker | Company | Why excluded | Status |
|---|---|---|---|
| NVDA | Nvidia | Reported as a large put position (chipmaker short book), not a disclosed long. | excluded — short / hedge |
| AVGO | Broadcom | Reported among the fund's largest put lines in the Q1 2026 13F. | excluded — short / hedge |
| ORCL | Oracle | Reported among the fund's largest put lines in the Q1 2026 13F. | excluded — short / hedge |
| SMH | VanEck Semiconductor ETF | Reported as a large put position — a broad semiconductor short, not a long. | excluded — short / hedge |
| ASML | ASML Holding | Semiconductor-equipment name within the reported chipmaker short / hedge book, not a disclosed long. | excluded — short / hedge |
Basket read
A quick read of the reported public positions — based on what was disclosed, not on estimated position sizes or live prices.
Source methodology
Santro prioritizes official filings first (13F / 13G on SEC EDGAR), then reputable financial media (e.g. Fortune, The Motley Fool), then manually reviewed source notes. Unsourced social-media lists and retail "portfolio tracker" pages are not treated as holdings. We record what was disclosed and when — not estimated weights or live positions, which filings and reports don't reliably show. If a source is unclear, the name is marked as needs verification or excluded. Accuracy beats fullness.
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Disclaimer
This page is based on public disclosures, reputable reporting, and Santro-reviewed source notes. It may not represent the complete or current portfolio of Leopold Aschenbrenner, Situational Awareness LP, or related entities. 13F / 13G data and media-reported positions may be delayed and incomplete, and may not reflect shorts, options, private holdings or current exposure. Santro does not estimate position sizes. Not financial advice.