Inference Investigation

Claim investigated: Andreessen Horowitz (a16z) has SEC EDGAR filings, confirming their status as a registered investment adviser or fund manager subject to federal securities disclosure requirements Entity: Andreessen Horowitz (a16z) Original confidence: inferential Result: STRENGTHENED → SECONDARY

Assessment

The inference is strongly supported by established primary facts showing three SEC filings by a16z on 2026-03-19, confirming their status as a registered entity subject to federal securities disclosure. However, the specific regulatory classification (RIA vs. fund manager) requires verification of the actual filing types and forms submitted.

Reasoning: Three confirmed SEC filings on the same date constitute strong evidence of regulatory compliance and disclosure obligations. The inference is well-supported but lacks the specific form types (ADV, 13F, etc.) needed for primary confidence about exact regulatory status.

Underreported Angles

• The timing of three simultaneous SEC filings on 2026-03-19 is unusual and may indicate a significant corporate restructuring, fund closure, or regulatory compliance event that went unreported
• a16z's absence from federal lobbying disclosures despite major policy interests suggests sophisticated influence operations through trade associations or third-party advocacy groups
• The lack of USASpending contracts despite defense tech investments may indicate indirect government exposure through portfolio companies rather than direct contracting

Public Records to Check

• SEC EDGAR: Andreessen Horowitz exact company name search for forms ADV, 13F, D, and quarterly reports Would confirm specific regulatory status as RIA (Form ADV) or investment company, and reveal fund sizes and holdings

• SEC EDGAR: Search by CIK number if available from the 2026-03-19 filings to find complete filing history Would provide comprehensive view of all SEC obligations and regulatory classifications over time

• LDA: Search for 'Andreessen' and 'Horowitz' as individual lobbyists or client representatives May reveal if principals engage in lobbying under personal names rather than firm name

• Companies House: Andreessen Horowitz UK entities or subsidiaries Could reveal international regulatory filings and corporate structure for global operations

Significance

SIGNIFICANT — Confirms a16z operates under federal securities regulation, establishing baseline regulatory oversight for a major VC firm with substantial policy influence and government connections through personnel like David Sacks.