Leopold Aschenbrenner

Summary

Leopold Aschenbrenner disclosed 26 positions in its latest 13F (2026 Q2), a portfolio value of ~$20.24B, across 1 sectors; top holdings SNDK, MU, BE. This quarter: 5 new, 11 added, 3 trimmed, 8 closed. Data from public SEC 13F filings, delayed up to ~45 days.

Portfolio value$20.24B

Holdings26incl. options

Sectors1

Latest filing2026 Q2

New5$1.99B

Added11$12.96B

Trimmed3$1.05B

Sold8$111.84M

View original SEC filing

Guru playbook

This quarter at a glance

Focused bookHighly concentrated · top 5 = 78%High turnover · activeTechnology-heavy

Circle of competence (by value)

Technology34%

Biggest new buy

NBISNEBIUS GROUP N.V.

New buy · of book 6.1%

Biggest add

SNDKSANDISK CORP

Added +118.9%

Biggest exit

BITFBITFARMS LTD/CANADA

Exited · was ~$38.76M

⚠️ Tags are auto-derived from public 13F holdings.

Position-weight treemap

By share of portfolio value (2026 Q2, common stock only, top 25).

Sector breakdown

By value (positions with no sector fall under “Uncategorized”).

Public SEC 13F filings may appear up to 45 days after quarter-end; STOCK Act / OGE trade filings are generally due within 45 days but may be late. Partial data only — research, not investment advice.