Ticker · held by 3 filers

OPRA

OPERA LTD

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

Total value held

$13.4M

Total shares

944,403

Filers holding

3 · 5 positions

Caveat

long only · 13F-eligible managers only

Filers holding OPRA

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

# Filer Class Shares Value (USD) % of port

1 Citadel Advisors · Ken Griffin CALLSPONSORED ADS 282,600 $4.0M 0.00%

2 Citadel Advisors · Ken Griffin SPONSORED ADS 244,307 $3.5M 0.00%

3 Renaissance Technologies · Jim Simons (founder) SPONSORED ADS 231,801 $3.3M 0.01%

4 Citadel Advisors · Ken Griffin PUTSPONSORED ADS 123,000 $1.7M 0.00%

5 BlackRock · Larry Fink SPONSORED ADS 62,695 $880.2K 0.00%

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 OPRA 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