Ticker · held by 3 filers

OPEN

OPENDOOR TECHNOLOGIES INC

All tracked filers currently holding OPEN, ranked by position size. Each row links through to the filer's full portfolio.

Total value held

$506.5M

Total shares

123,349,463

Filers holding

3 · 5 positions

Caveat

long only · 13F-eligible managers only

Filers holding OPEN

sorted by position size · click any filer to see their full portfolio

# Filer Class Shares Value (USD) % of port

1 Renaissance Technologies · Jim Simons (founder) COM 39,330,438 $229.3M 0.36%

2 BlackRock · Larry Fink COM 53,281,593 $98.0M 0.00%

3 Citadel Advisors · Ken Griffin CALLCOM 12,331,200 $71.9M 0.01%

4 Citadel Advisors · Ken Griffin PUTCOM 10,774,300 $62.8M 0.01%

5 Citadel Advisors · Ken Griffin COM 7,631,932 $44.5M 0.01%

What this is

This page reverses the usual 13F view: instead of "what does Buffett hold," it answers "who holds NVDA?" Across the dozen tracked filers, all current 13F-disclosed holders of OPEN are listed, with the position size and what fraction of each filer's overall portfolio it represents.

Caveats: only the filers tracked here are included (~12 names) — not the whole 13F universe (~6,000 filers). Position values are at the most recent quarter-end, not current market price. Only long positions are visible; shorts and synthetics aren't.

v0.2 · 2026 · data via SEC EDGAR · CUSIP→ticker via OpenFIGI