Ticker · held by 4 filers

KALU

KAISER ALUMINUM CORP

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

Total value held

$271.1M

Total shares

3,064,131

Filers holding

4 · 6 positions

Caveat

long only · 13F-eligible managers only

Filers holding KALU

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

# Filer Class Shares Value (USD) % of port

1 BlackRock · Larry Fink COM PAR $0.01 2,999,281 $263.6M 0.01%

2 Citadel Advisors · Ken Griffin COM PAR $0.01 32,473 $3.7M 0.00%

3 ARK Invest · Cathie Wood Common Stock 14,877 $1.7M 0.01%

4 Citadel Advisors · Ken Griffin CALLCOM PAR $0.01 8,000 $918.9K 0.00%

5 Renaissance Technologies · Jim Simons (founder) COM PAR $0.01 7,300 $838.5K 0.00%

6 Citadel Advisors · Ken Griffin PUTCOM PAR $0.01 2,200 $252.7K 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 KALU 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