Ticker · held by 3 filers

LAB

STANDARD BIOTOOLS INC

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

Total value held

$43.8M

Total shares

25,914,533

Filers holding

3 · 4 positions

Caveat

long only · 13F-eligible managers only

Filers holding LAB

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

# Filer Class Shares Value (USD) % of port

1 BlackRock · Larry Fink COM 21,753,007 $38.5M 0.00%

2 ARK Invest · Cathie Wood Common Stock 3,066,665 $3.9M 0.03%

3 Citadel Advisors · Ken Griffin COM 1,076,361 $1.4M 0.00%

4 Citadel Advisors · Ken Griffin CALLCOM 18,500 $23.7K 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 LAB 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