Ticker · held by 5 filers

EXK

EXACT SCIENCES CORP

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

Total value held

$842.8M

Total shares

17,991,174

Filers holding

5 · 11 positions

Caveat

long only · 13F-eligible managers only

Filers holding EXK

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

# Filer Class Shares Value (USD) % of port

1 BlackRock · Larry Fink COM 12,065,858 $509.8M 0.01%

2 Renaissance Technologies · Jim Simons (founder) COM 1,591,656 $161.6M 0.25%

3 Soros Fund Management · George Soros / Robert Soros COM 864,009 $87.7M 1.02%

4 Citadel Advisors · Ken Griffin CALLCOM 277,100 $28.1M 0.00%

5 Citadel Advisors · Ken Griffin PUTCOM 193,500 $19.7M 0.00%

6 Citadel Advisors · Ken Griffin COM 1,947,549 $18.3M 0.00%

7 Citadel Advisors · Ken Griffin COM 83,025 $8.4M 0.00%

8 Citadel Advisors · Ken Griffin PUTCOM 585,600 $5.5M 0.00%

9 Citadel Advisors · Ken Griffin CALLCOM 372,600 $3.5M 0.00%

10 Renaissance Technologies · Jim Simons (founder) COM 10,200 $95.9K 0.00%

11 ARK Invest · Cathie Wood Common Stock 77 $7.9K 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 EXK 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