What stocks does Leopold Aschenbrenner own?

As of the Q2 2026 13F filing, Leopold Aschenbrenner disclosed 24 positions. The largest holdings include SNDK (28.0%), MU (27.5%), BE (9.6%).

What is Leopold Aschenbrenner's largest holding?

SNDK (SANDISK CORP), representing 28.0% of the disclosed portfolio.

How concentrated is Leopold Aschenbrenner's portfolio?

The top 5 holdings represent 77.6% of total portfolio value.

When did Leopold Aschenbrenner last file a 13F?

Leopold Aschenbrenner filed the most recent Form 13F-HR for the period ending 2026-06-30, dated Aug 14, 2026.

What changed in Leopold Aschenbrenner's portfolio last quarter?

Quarter-over-quarter changes: 5 new positions, 10 exits, 10 increased, 4 reduced.

About Leopold Aschenbrenner

# Leopold Aschenbrenner (Situational Awareness LP) – Q2 2026 Profile

Leopold Aschenbrenner, principal of Situational Awareness LP, manages a $20.2 billion portfolio comprised of 24 positions as of the Q2 2026 filing submitted on August 14, 2026. The fund operates as a sector rotator, actively adjusting exposure across thematic positions rather than maintaining a static allocation. The portfolio's breadth reflects a concentrated investment approach, with the investor's largest holdings anchored in semiconductor and energy technology names.

The Q2 2026 filing discloses top-five holdings representing 77.6% of total portfolio value. SanDisk Corp (SNDK) comprises 28.0% of assets under management, while Micron Technology (MU) accounts for 27.5%. Bloom Energy Corp (BE) holds 9.6% of the portfolio, followed by Taiwan Semiconductor Manufacturing Company (TSM) at 6.4% and Nebius Group N.V. (NBIS) at 6.1%. The unclassified sector designation encompasses 66.9% of the overall portfolio, reflecting the specialized nature of these technology and energy infrastructure holdings.

During the quarter, Situational Awareness LP executed 29 position changes across its 24-position portfolio. Five new positions were initiated while ten existing positions were exited completely. Ten holdings received increased capital allocation, whereas four positions experienced reductions in size. This activity pattern reflects the fund's rotational discipline, with quarterly rebalancing concentrated in semiconductor exposure and emerging infrastructure technology sectors.

All data sourced from SEC 13F filings.

Frequently asked questions

What stocks does Leopold Aschenbrenner own?: As of the Q2 2026 13F filing, Leopold Aschenbrenner disclosed 24 positions. The largest holdings include SNDK (28.0%), MU (27.5%), BE (9.6%).
What is Leopold Aschenbrenner's largest holding?: SNDK (SANDISK CORP), representing 28.0% of the disclosed portfolio.
What sectors is Leopold Aschenbrenner exposed to?: The portfolio's largest sector exposures are Unclassified (66.9%), Information Technology (30.8%), Financial Services (2.3%). 3 sectors are represented in total.
How concentrated is Leopold Aschenbrenner's portfolio?: The top 5 holdings represent 77.6% of total portfolio value.
When did Leopold Aschenbrenner last file a 13F?: Leopold Aschenbrenner filed the most recent Form 13F-HR for the period ending 2026-06-30, dated Aug 14, 2026.
What changed in Leopold Aschenbrenner's portfolio last quarter?: Quarter-over-quarter changes: 5 new positions, 10 exits, 10 increased, 4 reduced.

Leopold Aschenbrenner

Name: Leopold Aschenbrenner — 13F Portfolio Holdings
Creator: InvestorLens
License: https://www.sec.gov/about/website-policies

Situational Awareness LP · AI / deep tech / long-term structural

Latest filingQ2 2026· filed Aug 14, 2026· report period Jun 30, 2026

View on SEC EDGAR ↗

For educational research only.InvestorLens analyzes public regulatory filings (SEC EDGAR, STOCK Act PTRs) that may be delayed by 45 days or more. Information shown is historical and is not financial, legal, or tax advice, nor a recommendation or solicitation to buy or sell any security. Always do your own research.

Portfolio Value

$20.2B

Holdings: 24
Turnover (LTM): 100%
Persistence (QoQ): 90%
First 13F: Q4 2024

View Full Profile

Investor Fingerprint

Leopold Aschenbrenner

v1 · 4-axis

LowHigh

Descriptive snapshot computed from this investor's most recent public 13F filing dated 2026-06-30. Educational research, not investment advice.

Portfolio DNA

Categorical breakdown from this investor's 13F. Hover any row for the formula.

Highly Concentrated
Very High
Moderate Skew
Above Avg.
Single-Sector Bet
Very High
High Turnover
Very High
Persistent Thesis
Very High
Tech-Heavy
High

Six descriptive labels derived from public 13F data. Additional axes (Value, Quality, Growth, Dividends) require fundamentals data and ship in v2.

78%

Concentration

Top 5 Holdings · 78%

Highly Concentrated

Investor Style

Sector Rotator

Bets on sectors more than specific names; rotates as themes shift.

Fingerprint SummaryAI-generated · educational research only

Aschenbrenner's portfolio is characterized by high concentration in top-5 holdings at 77.6% weight paired with moderate sector tilt of 54.3, indicating focused positioning within specific industry themes rather than broad diversification. The portfolio demonstrates substantial turnover over the last twelve months while maintaining 90.2% position persistence quarter-over-quarter, reflecting active rebalancing within a relatively stable core of 24 holdings. AI/Tech exposure of 37.2 represents a meaningful but non-dominant allocation within the $20.2 billion portfolio.

AI-generated analysis. This summary is produced by an automated language model from public regulatory filings. It may contain errors, omissions, or outdated information, and is provided for educational research only — not as financial, legal, or tax advice, a recommendation, or a solicitation to buy or sell any security.

Compare Leopold Aschenbrenner's fingerprint with peers →

Investor Macro Outlook™

Portfolio-positioning signal · 2026-Q2 · based on public filings

ConfidenceModerate (43%)

Inflationi

Bearish

Dollari

Strong

GDPi

Expanding

Employmenti

Weak

Ratesi

Neutral

Energyi

Bearish

Technologyi

Bullish

Fixed Incomei

Minimal

Growth vs Valuei

Growth tilt

← Pure ValuePure Growth →

Leopold Aschenbrenner's portfolio positioning shows meaningful technology and AI/digital infrastructure exposure. with minimal allocation to inflation-sensitive sectors. The overall sector mix is pro-cyclical, with heavier weight in economically sensitive industries. The portfolio shows a growth-oriented tilt (implied growth score: 90/100).

Macro Trend — last 2 quarters

	2026-Q1	2026-Q2
Inflation	Bearish	Bearish→
GDP	Expanding	Expanding→
Rates	Neutral	Neutral→
Energy	Bearish	Bearish→
Technology	Bullish	Bullish↓
Growth / Value	Growth	Growth↓

This analysis is inferred from public filing data and portfolio positioning. It is for informational purposes only and is not financial advice. Scores represent implied macro views based on sector weights and quarter-over-quarter changes in public 13F disclosures — not predictions, buy/sell signals, or guaranteed forecasts.

Investor Inflation & Dollar Outlook™

Portfolio-positioning signal · based on public 13F filings · not investment advice

ConfidenceModerate (59%)

Inflation

40/100

Neutral Inflation Bias

← FallingNeutralRising →

U.S. Dollar

30/100

Strong Dollar Bias

← StrongNeutralWeak →

Portfolio allocation across inflation-sensitive and defensive assets does not show a strong directional tilt, suggesting a broadly balanced implied inflation view based on observable holdings. Dollar-sensitive positioning — including exposure to short-duration domestic assets and limited international/commodity allocation — reflects a relative dollar-strength signal from observable holdings. This analysis is based on public 13F filing data and observable portfolio positioning only. It is for informational purposes only and should not be considered investment advice.

This analysis is based on public filings and portfolio positioning. It is for informational purposes only and should not be considered investment advice. Scores represent implied views inferred from observable 13F sector weights and quarter-over-quarter changes only — not predictions or guaranteed forecasts.

Portfolio Analytics™

Based on latest 13F

/100

Concentration Score™

Highly Concentrated

Top 5 → 78%

Top 10 → 92%

Largest Position

SNDK

SANDISK CORP

28.0%of portfolio

$5.7B market value

Conviction Holdings

Positions > 5% of portfolio

SNDK28.0%
MU27.5%
BE9.6%
TSM6.4%
NBIS6.1%

Top 10 Holdings

#	Stock	% Portfolio	Cumulative
1	SNDK SANDISK CORP	28.0%	28.0%
2	MU MICRON TECHNOLOGY INC	27.5%	55.6%
3	BE BLOOM ENERGY CORP	9.6%	65.2%
4	TSM TAIWAN SEMICONDUCTOR MANUFAC	6.4%	71.5%
5	NBIS NEBIUS GROUP N.V.	6.1%	77.6%
6	CRWV COREWEAVE INC	3.7%	81.3%
7	CORZ CORE SCIENTIFIC INC NEW	3.3%	84.6%
8	STM STMICROELECTRONICS	2.9%	87.5%
9	APLD APPLIED DIGITAL CORP	2.3%	89.8%
10	RIOT RIOT PLATFORMS INC	2.3%	92.1%

Sector Allocation

Unclassified66.9%
Information Technology30.8%
Financial Services2.3%

Unclassified66.9%

Information Technology30.8%

Financial Services2.3%

Portfolio Risk Profile™

High

Structure of disclosed 13F positions — not a prediction of returns

86/100

Weighted across dimensions with sufficient data

Concentration

High

80/100

·Top position SNDK is 28% of the portfolio
·Top 10 holdings account for 92.1% of value
·24 total positions (HHI 0.177)

Sector exposure

No data yet

N/A

·Only 33.1% of portfolio value has a sector classification
·Not enough classified holdings to score sector clustering — needs sector backfill

Turnover

High

100/100

·63.3% of portfolio value rotated quarter-over-quarter
·5 new positions, 10 full exits

Largest sector weights

Unclassified 66.9%Information Technology 30.8%Financial Services 2.3%

AI risk read

The portfolio exhibits high structural concentration with the top position representing 28% of disclosed holdings and the top 10 positions accounting for 92.1% of portfolio value across 24 total positions. Turnover reached 63.3% on a quarter-over-quarter basis, with 5 new positions established and 10 positions exited, indicating substantial portfolio rotation during the period.

Derived solely from Leopold Aschenbrenner's public 13F filings, which disclose long US equity positions only — shorts, options hedges, cash, and non-US holdings are not included. Educational research only, not financial advice.

About

Former OpenAI researcher and author of the influential "Situational Awareness" essay (2024), which argued that AGI is likely within this decade. Founder of Situational Awareness LP, an AI-focused hedge fund launched in late 2024. Previously worked at OpenAI on alignment and governance before departing in 2024. Known for his views on AI acceleration and national security implications of advanced AI.

AI filing intelligenceEducational research only — not financial advice

Situational Awareness LP significantly concentrated its portfolio around memory and storage semiconductors in Q2 2026, substantially increasing positions in SNDK (up $4.6 billion) and MU (up $4.6 billion) while exiting larger positions in NVDA, ORCL, AVDA, and AMD totaling approximately $4.6 billion in combined value. The fund also initiated new positions in NBIS ($1.2 billion) and STM ($584 million), while modestly trimming exposure to CRWV and BE. This reallocation reflects a shift away from broad-based semiconductor and infrastructure plays toward focused exposure in memory, storage, and emerging AI infrastructure companies. Because 13F filings are delayed by up to 45 days, this should not be treated as real-time investment advice. Always do your own research.

Top 10 holdings

SNDKSANDISK CORP
$5.7B28.0%
MUMICRON TECHNOLOGY INC
$5.6B27.5%
BEBLOOM ENERGY CORP
$1.9B9.6%
TSMTAIWAN SEMICONDUCTOR MANUFAC
$1.3B6.4%
NBISNEBIUS GROUP N.V.
$1.2B6.1%
CRWVCOREWEAVE INC
$744.5M3.7%
CORZCORE SCIENTIFIC INC NEW
$665.6M3.3%
STMSTMICROELECTRONICS
$584.3M2.9%
APLDAPPLIED DIGITAL CORP
$469M2.3%
RIOTRIOT PLATFORMS INC
$468.2M2.3%

Sector exposure

Unclassified66.9%
Information Technology30.8%
Financial Services2.3%

New positions

CBRSCEREBRAS SYSTEMS INC
New
KEELKEEL INFRASTRUCTURE CORP
New
NBISNEBIUS GROUP N.V.
New
STMSTMICROELECTRONICS
New
VSHVISHAY INTERTECHNOLOGY INC
New

Why this matters

Why a new position matters

Opening a new position can suggest the manager sees value or a thesis worth committing capital to. It does not necessarily mean they are bullish on the broader market — concentrated managers add positions infrequently while quants may rotate constantly.

Educational research only. Not financial advice.

Increased

APLDAPPLIED DIGITAL CORP
Increased
BWBABCOCK & WILCOX ENTERPRISES
Increased
HIVEHIVE DIGITAL TECHNOLOGIES LT
Increased
MUMICRON TECHNOLOGY INC
Increased
PUMPPROPETRO HLDG CORP
Increased
RIOTRIOT PLATFORMS INC
Increased

Why this matters

Why an increase matters

Adding to an existing position may indicate higher conviction, scaling into a thesis, or rebalancing toward a target weight. It does not necessarily mean the position is undervalued at the current price.

Educational research only. Not financial advice.

Reduced

BEBLOOM ENERGY CORP
Reduced
CRWVCOREWEAVE INC
Reduced
IRENIREN LIMITED
Reduced
TET1 ENERGY INC
Reduced

Why this matters

Why a reduction matters

Trimming a position may suggest portfolio rebalancing, profit-taking, or risk management. It does not necessarily mean the manager has turned bearish on the underlying company.

Educational research only. Not financial advice.

Sold out

Ticker unavailableCUSIP 09173B107BITFARMS LTD
Sold
Ticker unavailableCUSIP 92189F676VANECK ETF TRUST
Sold
AMDADVANCED MICRO DEVICES INC
Sold
ASMLASML HLDG NV N Y REGISTRY
Sold
AVGOBROADCOM INC
Sold
GLWCORNING INC
Sold

Why this matters

Why a full exit matters

Fully exiting a position can suggest that the manager's thesis has played out, was wrong, or that capital is being redeployed elsewhere. It does not mean the company is broken — exits are often as much about portfolio fit as about the security itself.

Educational research only. Not financial advice.

Current holdings

Reported portfolio value: $20.2B

Reported values come from public SEC filings and may be delayed up to 45 days. Not investment advice.

Sourced from SEC EDGAR public filings

Ticker	Company	Shares	Reported position valuei	Portfolio weighti	Delta Shares	Status
SNDK	SANDISK CORP	2.5M	$5.7B	28.03%	42.43%	Increased
MU	MICRON TECHNOLOGY INC	4.8M	$5.6B	27.54%	61.22%	Increased
BE	BLOOM ENERGY CORP	6.4M	$1.9B	9.60%	-6.89%	Reduced
TSM	TAIWAN SEMICONDUCTOR MANUFAC	2.7M	$1.3B	6.37%	1.63%	Increased
NBIS	NEBIUS GROUP N.V.	4.5M	$1.2B	6.09%	—	New
CRWV	COREWEAVE INC	7.5M	$744.5M	3.68%	-16.82%	Reduced
CORZ	CORE SCIENTIFIC INC NEW	26M	$665.6M	3.29%	0.00%	Unchanged
STM	STMICROELECTRONICS	7.8M	$584.3M	2.89%	—	New
APLD	APPLIED DIGITAL CORP	15.4M	$469M	2.32%	14.14%	Increased
RIOT	RIOT PLATFORMS INC	17.1M	$468.2M	2.31%	48.67%	Increased
SHAZ	SHARONAI HOLDINGS INC	5.4M	$456.8M	2.26%	577.81%	Increased
IREN	IREN LIMITED	9.5M	$433.3M	2.14%	-19.02%	Reduced
CLSK	CLEANSPARK INC	12.3M	$178.6M	0.88%	0.00%	Unchanged
KEEL	KEEL INFRASTRUCTURE CORP	26.5M	$151.8M	0.75%	—	New
SEI	SOLARIS ENERGY INFRAS INC	1.1M	$90.9M	0.45%	2.18%	Increased
WYFI	WHITEFIBER INC	1.8M	$68.3M	0.34%	0.00%	Unchanged
BTDR	BITDEER TECHNOLOGIES GROUP	3.4M	$54.6M	0.27%	0.00%	Unchanged
TE	T1 ENERGY INC	4.9M	$46.5M	0.23%	-51.00%	Reduced
HIVE	HIVE DIGITAL TECHNOLOGIES LT	9.1M	$33.2M	0.16%	169.31%	Increased
BW	BABCOCK & WILCOX ENTERPRISES	2M	$28.6M	0.14%	49.75%	Increased
PUMP	PROPETRO HLDG CORP	2M	$28.1M	0.14%	115.36%	Increased
VSH	VISHAY INTERTECHNOLOGY INC	375K	$20.2M	0.10%	—	New
INFY	INFOSYS LTD	500K	$5.2M	0.03%	0.00%	Unchanged
CBRS	CEREBRAS SYSTEMS INC	10K	$2.2M	0.01%	—	New
Ticker unavailableCUSIP 09173B107	BITFARMS LTD	0	$0	0.00%	-100.00%	Sold
Ticker unavailableCUSIP 92189F676	VANECK ETF TRUST	0	$0	0.00%	-100.00%	Sold
AMD	ADVANCED MICRO DEVICES INC	0	$0	0.00%	-100.00%	Sold
ASML	ASML HLDG NV N Y REGISTRY	0	$0	0.00%	-100.00%	Sold
AVGO	BROADCOM INC	0	$0	0.00%	-100.00%	Sold
GLW	CORNING INC	0	$0	0.00%	-100.00%	Sold
INTC	INTEL CORP	0	$0	0.00%	-100.00%	Sold
NVDA	NVIDIA CORPORATION	0	$0	0.00%	-100.00%	Sold
ORCL	ORACLE CORP	0	$0	0.00%	-100.00%	Sold
PSIX	POWER SOLUTIONS INTL INC	0	$0	0.00%	-100.00%	Sold

SNDKIncreased
SANDISK CORP
Position value
$5.7B
Portfolio %
28.03%
Delta Shares
42.43%
MUIncreased
MICRON TECHNOLOGY INC
Position value
$5.6B
Portfolio %
27.54%
Delta Shares
61.22%
BEReduced
BLOOM ENERGY CORP
Position value
$1.9B
Portfolio %
9.60%
Delta Shares
-6.89%
TSMIncreased
TAIWAN SEMICONDUCTOR MANUFAC
Position value
$1.3B
Portfolio %
6.37%
Delta Shares
1.63%
NBISNew
NEBIUS GROUP N.V.
Position value
$1.2B
Portfolio %
6.09%
Delta Shares
—
CRWVReduced
COREWEAVE INC
Position value
$744.5M
Portfolio %
3.68%
Delta Shares
-16.82%
CORZUnchanged
CORE SCIENTIFIC INC NEW
Position value
$665.6M
Portfolio %
3.29%
Delta Shares
0.00%
STMNew
STMICROELECTRONICS
Position value
$584.3M
Portfolio %
2.89%
Delta Shares
—
APLDIncreased
APPLIED DIGITAL CORP
Position value
$469M
Portfolio %
2.32%
Delta Shares
14.14%
RIOTIncreased
RIOT PLATFORMS INC
Position value
$468.2M
Portfolio %
2.31%
Delta Shares
48.67%
SHAZIncreased
SHARONAI HOLDINGS INC
Position value
$456.8M
Portfolio %
2.26%
Delta Shares
577.81%
IRENReduced
IREN LIMITED
Position value
$433.3M
Portfolio %
2.14%
Delta Shares
-19.02%
CLSKUnchanged
CLEANSPARK INC
Position value
$178.6M
Portfolio %
0.88%
Delta Shares
0.00%
KEELNew
KEEL INFRASTRUCTURE CORP
Position value
$151.8M
Portfolio %
0.75%
Delta Shares
—
SEIIncreased
SOLARIS ENERGY INFRAS INC
Position value
$90.9M
Portfolio %
0.45%
Delta Shares
2.18%
WYFIUnchanged
WHITEFIBER INC
Position value
$68.3M
Portfolio %
0.34%
Delta Shares
0.00%
BTDRUnchanged
BITDEER TECHNOLOGIES GROUP
Position value
$54.6M
Portfolio %
0.27%
Delta Shares
0.00%
TEReduced
T1 ENERGY INC
Position value
$46.5M
Portfolio %
0.23%
Delta Shares
-51.00%
HIVEIncreased
HIVE DIGITAL TECHNOLOGIES LT
Position value
$33.2M
Portfolio %
0.16%
Delta Shares
169.31%
BWIncreased
BABCOCK & WILCOX ENTERPRISES
Position value
$28.6M
Portfolio %
0.14%
Delta Shares
49.75%
PUMPIncreased
PROPETRO HLDG CORP
Position value
$28.1M
Portfolio %
0.14%
Delta Shares
115.36%
VSHNew
VISHAY INTERTECHNOLOGY INC
Position value
$20.2M
Portfolio %
0.10%
Delta Shares
—
INFYUnchanged
INFOSYS LTD
Position value
$5.2M
Portfolio %
0.03%
Delta Shares
0.00%
CBRSNew
CEREBRAS SYSTEMS INC
Position value
$2.2M
Portfolio %
0.01%
Delta Shares
—
Ticker unavailableCUSIP 09173B107Sold
BITFARMS LTD
Position value
$0
Portfolio %
0.00%
Delta Shares
-100.00%
Ticker unavailableCUSIP 92189F676Sold
VANECK ETF TRUST
Position value
$0
Portfolio %
0.00%
Delta Shares
-100.00%
AMDSold
ADVANCED MICRO DEVICES INC
Position value
$0
Portfolio %
0.00%
Delta Shares
-100.00%
ASMLSold
ASML HLDG NV N Y REGISTRY
Position value
$0
Portfolio %
0.00%
Delta Shares
-100.00%
AVGOSold
BROADCOM INC
Position value
$0
Portfolio %
0.00%
Delta Shares
-100.00%
GLWSold
CORNING INC
Position value
$0
Portfolio %
0.00%
Delta Shares
-100.00%
INTCSold
INTEL CORP
Position value
$0
Portfolio %
0.00%
Delta Shares
-100.00%
NVDASold
NVIDIA CORPORATION
Position value
$0
Portfolio %
0.00%
Delta Shares
-100.00%
ORCLSold
ORACLE CORP
Position value
$0
Portfolio %
0.00%
Delta Shares
-100.00%
PSIXSold
POWER SOLUTIONS INTL INC
Position value
$0
Portfolio %
0.00%
Delta Shares
-100.00%

Sector breakdown

Unclassified66.9%
Information Technology30.8%
Financial Services2.3%

Filing history

13F-HR · Q2 2026
Filed Aug 14, 2026
View on SEC ↗
13F-HR · Q1 2026
Filed May 18, 2026
View on SEC ↗
13F-HR · Q4 2025
Filed Feb 11, 2026
View on SEC ↗
13F-HR · Q3 2025
Filed Nov 14, 2025
View on SEC ↗
13F-HR · Q2 2025
Filed Aug 14, 2025
View on SEC ↗
13F-HR · Q1 2025
Filed May 14, 2025
View on SEC ↗
13F-HR · Q4 2024
Filed Feb 12, 2025
View on SEC ↗