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Ticker · held by 2 filers

PHAT

PHATHOM PHARMACEUTICALS INC

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

Total value held
$36.9M
Total shares
3,336,588
Filers holding
2 · 4 positions
Caveat
long only · 13F-eligible managers only
Filers holding PHAT
# Filer Class Shares Value (USD) % of port
1 BlackRock · Larry Fink COM 2,926,373 $30.1M 0.00%
2 Citadel Advisors · Ken Griffin COM 311,315 $5.2M 0.00%
3 Citadel Advisors · Ken Griffin CALLCOM 69,300 $1.1M 0.00%
4 Citadel Advisors · Ken Griffin PUTCOM 29,600 $491.1K 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 PHAT 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