Leopold AschenbrennerPortfolio & 13F holdings
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The ex-OpenAI researcher's AI fund was up 439% in the first half of 2026, lost 67% in July, and sold most of its stock portfolio to Citadel on July 30.
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Rebuilt at the close on the day each 13F was filed, to its 100 largest stock positions weighted by reported value. Feb 12, 2025, its first 13F in the last two years, to Nov 5, 2026, at closing prices. Past trades don't guarantee future results.
Latest moves
Share-count changes versus the prior quarter's filing.
What Leopold holds
23 listed positions- $TSMTAIWAN SEMICONDUCTOR MANUFAC−26.1%$1.3B · 6%
- $SEISOLARIS ENERGY INFRAS INC−37.2%$90.9M · 0%
- $MUMICRON TECHNOLOGY INC−43.1%$5.6B · 28%
- $BEBLOOM ENERGY CORP−44.7%$1.9B · 9%
- $RIOTRIOT PLATFORMS INC−46.1%$468.2M · 2%
- $STMSTMICROELECTRONICS−46.7%$584.3M · 3%
- $HIVEHIVE DIGITAL TECHNOLOGIES LT−55.2%$33.2M · 0%
- $CORZCORE SCIENTIFIC INC NEW−55.5%$665.6M · 3%
- $CRWVCOREWEAVE INC−56.1%$744.5M · 4%
- $NBISNEBIUS GROUP N.V.−56.4%$1.2B · 6%
| Ticker | Company | Today | Position | Weight | Since disclosed |
|---|---|---|---|---|---|
| $TSM | TAIWAN SEMICONDUCTOR MANUFAC | $1.3B | 6.2% | −26.1% | |
| $SEI | SOLARIS ENERGY INFRAS INC | $90.9M | 0.4% | −37.2% | |
| $MU | MICRON TECHNOLOGY INC | $5.6B | 27.5% | −43.1% | |
| $BE | BLOOM ENERGY CORP | $1.9B | 9.4% | −44.7% | |
| $RIOT | RIOT PLATFORMS INC | $468.2M | 2.3% | −46.1% | |
| $STM | STMICROELECTRONICS | $584.3M | 2.9% | −46.7% | |
| $HIVE | HIVE DIGITAL TECHNOLOGIES LT | $33.2M | 0.2% | −55.2% | |
| $CORZ | CORE SCIENTIFIC INC NEW | $665.6M | 3.3% | −55.5% | |
| $CRWV | COREWEAVE INC | $744.5M | 3.7% | −56.1% | |
| $NBIS | NEBIUS GROUP N.V. | $1.2B | 6.1% | −56.4% |
Values as reported on the fund’s SEC Form 13F. "Since disclosed" is the price change from the quarter end to today.
Source: SEC Form 13F-HR · filings on EDGAR ↗
Copy Leopold's portfolio
The reported positions in their reported weights, from the filing for the quarter ended Jun 30, 2026. $9.99/mo.
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Leopold's bets
puts and calls from the same filingA put is a bet the stock falls; a call, that it rises. Values are the notional amounts reported on the 13F and the share of the whole reported book. Option bets are not part of the basket a follower buys.
In the news
last 60 days- Leopold Aschenbrenner Bought Riot Platforms. An $8.2 Billion Hedge Fund Cut Its Stake 35%. Who’s Right? - TIKR.comTIKR.com · 3 days ago
- Leopold Aschenbrenner Bought Riot Platforms. A $5 Billion Hedge Fund Cut Its Stake 35%. Who’s Right? - TIKR.comTIKR.com · 3 days ago
- Leopold Aschenbrenner Bought Riot Platforms. A $5 Billion Hedge Fund Cut Its Stake 35%. Who’s Right? - TIKR.comTIKR.com · 3 days ago
- Leopold Aschenbrenner Bought Riot Platforms. A $5 Billion Hedge Fund Cut Its Stake 35%. Who’s Right?Bing News · 4 days ago
- Leopold Aschenbrenner Bought Riot Platforms. A $5 Billion Hedge Fund Cut Its Stake 35%. Who’s Right?Bing News · 4 days ago
- Leopold Aschenbrenner Bought Riot Platforms. A $5 Billion Hedge Fund Cut Its Stake 35%. Who’s Right?Bing News · 4 days ago