Ticker · held by 4 filers

IRDM

IRIDIUM COMMUNICATIONS INC

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

Total value held

$392.9M

Total shares

16,381,972

Filers holding

4 · 6 positions

Caveat

long only · 13F-eligible managers only

Filers holding IRDM

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

# Filer Class Shares Value (USD) % of port

1 BlackRock · Larry Fink COM 11,708,113 $311.7M 0.01%

2 ARK Invest · Cathie Wood Common Stock 2,850,606 $49.5M 0.33%

3 Citadel Advisors · Ken Griffin COM 1,140,215 $19.8M 0.00%

4 Bridgewater Associates · Ray Dalio (founder) COM 419,838 $7.3M 0.03%

5 Citadel Advisors · Ken Griffin PUTCOM 212,900 $3.7M 0.00%

6 Citadel Advisors · Ken Griffin CALLCOM 50,300 $874.2K 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 IRDM 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