Gigafund Management Company, LLC

New 13F: Q3 2026

Gigafund Management Company, LLC filed its 13F for the quarter ended Sep 30, 2026 on Oct 28, 2026: $19.0B in AI and semiconductor stocks; $0.00 bought and $6.9B sold against its previous quarter, at the quarter's prices.

• trimmed SpaceX (SPCX): -$6.9B at the quarter's price

Gigafund Management Company, LLC declares $29.4B in 1 of the 230 AI and semiconductor companies tracked on Silicon Floor, as of Jun 30, 2026 (Form 13F): 99.8% of its $29.4B 13F portfolio. Largest positions: SpaceX (0.63% of the company).

Performance of its AI picks

The AI-stock portfolio Gigafund Management Company, LLC declared for Q2 2026 (Form 13F), held unchanged, returned -11.7% in Q3 2026 (SMH -7.1%). Trades made during a quarter are not visible in 13F filings: this measures its declared picks, not the return of its funds.

Largest positions

1. SpaceX (SPCX): $29.4B, 171.8M shares, 0.63% of the company, 99.8% of its portfolio

By sector

• Cloud & AI giants: $29.4B, 100% of its AI holdings, 1 company

Other holders of this size

• CANADA LIFE ASSURANCE Co: $29.1B in 138 of these companies
• BAMCO INC /NY/: $29.5B in 51 of these companies
• LAZARD ASSET MANAGEMENT LLC: $28.8B in 179 of these companies
• STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM: $29.8B in 195 of these companies
• Quantinno Capital Management LP: $28.5B in 205 of these companies
• Mariner, LLC: $29.8B in 170 of these companies
• Marshall Wace: $27.5B in 181 of these companies
• PNC Financial Services Group, Inc.: $30.4B in 217 of these companies

Follow Gigafund Management Company, LLC's SEC filings (Atom feed)

All holders · Who owns each AI company · All tracked companies · The AI market