Ticker · held by 2 filers

BLOK

AMPLIFY ETF TR

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

Total value held

$3.1M

Total shares

55,000

Filers holding

2 · 3 positions

Caveat

long only · 13F-eligible managers only

Filers holding BLOK

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

# Filer Class Shares Value (USD) % of port

1 Citadel Advisors · Ken Griffin CALLBLOCKCHAIN TECHN 28,500 $1.6M 0.00%

2 Renaissance Technologies · Jim Simons (founder) BLOCKCHAIN TECHN 16,400 $933.0K 0.00%

3 Citadel Advisors · Ken Griffin PUTBLOCKCHAIN TECHN 10,100 $574.6K 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 BLOK 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