Ticker · held by 6 filers

RBRK

RUBRIK INC.

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

Total value held

$336.4M

Total shares

5,043,502

Filers holding

6 · 8 positions

Caveat

long only · 13F-eligible managers only

Filers holding RBRK

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

# Filer Class Shares Value (USD) % of port

1 Citadel Advisors · Ken Griffin CALLCL A 1,916,200 $146.6M 0.02%

2 Renaissance Technologies · Jim Simons (founder) CL A 723,389 $55.3M 0.09%

3 Citadel Advisors · Ken Griffin CL A 575,873 $44.0M 0.01%

4 ARK Invest · Cathie Wood Common Stock 454,276 $34.7M 0.23%

5 BlackRock · Larry Fink CL A 1,077,170 $33.0M 0.00%

6 Citadel Advisors · Ken Griffin PUTCL A 222,700 $17.0M 0.00%

7 Bridgewater Associates · Ray Dalio (founder) CL A 51,923 $4.0M 0.01%

8 Soros Fund Management · George Soros / Robert Soros CL A 21,971 $1.7M 0.02%

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 RBRK 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