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13F FILER • LEOPOLD ASCHENBRENNER

Situational Awareness

Leopold Aschenbrenner — Situational Awareness LP

No writing by this manager has been read and indexed yet, so this page carries the filings only. Holdings come straight from the Form 13F-HR on EDGAR.

26

Positions

$20.2B

Reported Value

91.8%

In Top 10

—

Claims Indexed

Largest reported positions

SITUATIONAL AWARENESS LP • CIK 0002045724 • 2026-06-30 • FILED 2026-08-14

WHAT CHANGED THIS QUARTER

In its Q2 2026 13F, filed Aug 14, 2026, Situational Awareness reported 26 positions worth $20.2B in US-listed stock. The largest stock position is Sandisk Corp at 28.0% of the reported book, and the ten largest lines of any type make up 91.8% of it.

It opened 5 new positions, the largest stock positions being Nebius Group N.v. ($1.2B), Stmicroelectronics ($584.3M) and Keel Infrastructure Corp ($151.8M), and exited 21, the largest stock exits being Bitfarms Ltd ($38.8M last quarter) and Power Solutions Intl Inc ($26.3M last quarter).

Among positions it already held, the biggest increases by share count were Micron Technology Inc (+27712%), Taiwan Semiconductor Manufac (+11714%) and Sharonai Holdings Inc (+578%), and the biggest cuts were T1 Energy Inc (−51%), Iren Limited (−19%) and Bloom Energy Corp (−3%).

Largest reported positions, quarter ended 2026-06-30
IssuerValueWeightShares QoQ
SANDISK CORP$5.7B28.0%+119%
MICRON TECHNOLOGY INC$5.6B27.5%+27712%
BLOOM ENERGY CORP$1.9B9.4%-3%
TAIWAN SEMICONDUCTOR MANUFAC$1.3B6.3%+11714%
NEBIUS GROUP N.V.$1.2B6.1%New
COREWEAVE INC$744.5M3.7%+4%
CORE SCIENTIFIC INC NEW$665.6M3.3%—
STMICROELECTRONICS$584.3M2.9%New
APPLIED DIGITAL CORP$469.0M2.3%+14%
RIOT PLATFORMS INC$468.2M2.3%+49%
SHARONAI HOLDINGS INC$456.8M2.3%+578%
IREN LIMITED$433.3M2.1%-19%
CLEANSPARK INC$178.6M0.9%—
KEEL INFRASTRUCTURE CORP$151.8M0.8%New
SOLARIS ENERGY INFRAS INC$90.9M0.5%+2%
WHITEFIBER INC$68.3M0.3%—
BITDEER TECHNOLOGIES GROUP$54.6M0.3%—
T1 ENERGY INC$46.5M0.2%-51%
BLOOM ENERGY CORP (Call)$44.1M0.2%-64%
HIVE DIGITAL TECHNOLOGIES LT$33.2M0.2%+169%

20 of 26 positions. 0.4% of reported value is options, where the figure is the notional value of the underlying rather than money spent. A 13F covers long US-listed positions at a quarter end only — no shorts, leverage, cash, ordinary bonds or private holdings — and is 45 days old on publication.

NEW POSITIONS

  • Nebius Group N.v.$1.2B · 6.1%
  • Stmicroelectronics$584.3M · 2.9%
  • Keel Infrastructure Corp$151.8M · 0.8%
  • Vishay Intertechnology Inc$20.2M · 0.1%
  • Cerebras Systems Inc$2.2M · 0.0%

EXITS

  • Bitfarms Ltd$38.8M last quarter
  • Power Solutions Intl Inc$26.3M last quarter

QUESTIONS PEOPLE ASK

What are Situational Awareness' largest holdings?

OPEN
As of Jun 30, 2026, the three largest stock positions are Sandisk Corp (28.0%), Micron Technology Inc (27.5%) and Bloom Energy Corp (9.4%), together 65.0% of the reported book.

How big is Situational Awareness' 13F portfolio?

OPEN
The Q2 2026 13F, filed Aug 14, 2026, reports 26 positions worth $20.2B. The ten largest make up 91.8% of it. 0.4% of that value is options, reported at the notional value of the underlying rather than money spent.

What did Situational Awareness buy and sell in Q2 2026?

OPEN
It opened 5 new positions, the largest stock positions being Nebius Group N.v. ($1.2B), Stmicroelectronics ($584.3M) and Keel Infrastructure Corp ($151.8M), and exited 21, the largest stock exits being Bitfarms Ltd ($38.8M last quarter) and Power Solutions Intl Inc ($26.3M last quarter). Among positions it already held, the biggest increases by share count were Micron Technology Inc (+27712%), Taiwan Semiconductor Manufac (+11714%) and Sharonai Holdings Inc (+578%), and the biggest cuts were T1 Energy Inc (−51%), Iren Limited (−19%) and Bloom Energy Corp (−3%).

When is Situational Awareness' next 13F due?

OPEN
The Q3 2026 13F is due Nov 16, 2026. Forty-five days after the quarter ends is November 14, 2026 (Saturday), so the deadline moves to the next business day. Leopold Aschenbrenner's filing usually lands close to the deadline.

Filers with overlapping books