MQ

MARQETA INC

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

Total value held

$250.2M

Total shares

47,468,653

Filers holding

4 · 6 positions

Caveat

long only · 13F-eligible managers only

Filers holding MQ

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

# Filer Class Shares Value (USD) % of port

1 BlackRock · Larry Fink CLASS A COM 33,909,232 $185.8M 0.00%

2 Renaissance Technologies · Jim Simons (founder) CLASS A COM 11,342,355 $53.9M 0.08%

3 Citadel Advisors · Ken Griffin CLASS A COM 1,508,853 $7.2M 0.00%

4 Bridgewater Associates · Ray Dalio (founder) CLASS A COM 543,413 $2.6M 0.01%

5 Citadel Advisors · Ken Griffin CALLCLASS A COM 126,200 $599.5K 0.00%

6 Citadel Advisors · Ken Griffin PUTCLASS A COM 38,600 $183.3K 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 MQ 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