How many institutional investors hold PHAT?

3 tracked institutional investors disclosed a position in PHAT (PHATHOM PHARMACEUTICALS INC) in their most recent 13F filing.

Who is the largest institutional holder of PHAT?

Izzy Englander, Millennium Management, holds the largest disclosed position in PHAT, valued at $60M.

Where does this PHAT ownership data come from?

SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.

PHAT — PHATHOM PHARMACEUTICALS INC

Name: PHATHOM PHARMACEUTICALS INC (PHAT) — Institutional Ownership
Creator: InvestorLens
License: https://www.sec.gov/about/website-policies

Public company

For educational research only.InvestorLens analyzes public regulatory filings (SEC EDGAR, STOCK Act PTRs) that may be delayed by 45 days or more. Information shown is historical and is not financial, legal, or tax advice, nor a recommendation or solicitation to buy or sell any security. Always do your own research.

InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.

Sourced from SEC EDGAR public filings

Why are billionaires buying PHAT?

Built from public SEC filings and public economic data. Not a recommendation.

Confidence

Institutional Conviction

Strong distribution · 0 buying vs 1 selling last quarter

Macro Tailwind

Macro conditions are mixed for this sector

Why? — Evidence & Confidence ▾

Of 1 tracked investors who changed their PHAT position last quarter, 0 bought and 1 sold (0% buy-side). Macro conditions are mixed for this sector (Macro Tailwind 57/100 in a Contraction regime).

Supporting evidence

+3 tracked investors reported holding PHAT at their latest filing
+Macro Health is 57/100 in a Contraction regime — historically acceptable for this sectorsource

Contradicting evidence — always shown

−1 tracked investor reduced or exited last quarter (0 reduced, 1 sold out)
−13F data is disclosed up to 45 days after quarter end — positions may have changed since

Know the limits

· 13F disclosure lag (up to 45 days)
· Tracked investors are a sample, not the whole market
· Sector regime fit is a historical average, not a guarantee

Every InvestorLens score shows its evidence — including what argues against it. Model conviction-v1 · generated 9/6/2026.

About PHATHOM PHARMACEUTICALS INC (PHAT)

PHATHOM PHARMACEUTICALS INC (PHAT) appears in the most recent 13F filings of 3 tracked institutional investors. The largest disclosed position is held by Izzy Englander (Millennium Management), valued at $60M. Across recent filings, tracked investors recorded 1 new positions, 0 increased, 0 reduced, and 1 exited. All data sourced from SEC 13F filings.

Smart Money Consensus™

Based on recent institutional activity in PHAT

/100

Mixed Activity

Added / Increased1

Reduced0

Exited1

BearishBullish

Crowded Trade Score™

How many top investors track PHAT

/100

Emerging Interest

3investors

A small number of top investors own this.

UndiscoveredCrowded

151015+

PHAT Ownership Composition

How PHATHOM PHARMACEUTICALS INC is held across tracked investor types, based on reported 13F positions.

Dominant Type

Multi-Strategy / Quant

100% of tracked value

Institutions

tracked investors

Total Reported

$55.3M

combined 13F value

Multi-Strategy / Quant100.0%

Multi-Strategy / Quant(3)

100.0%

Tracked investors currently reporting PHAT

1 tracked investor has since exited this position — listed separately below.

Investor	Firm	Shares	Market value	% of portfolio	As of
Izzy Englander	Millennium Management	3.4M	$36.6M	0.01%	Jun 30, 2026
Steve Cohen	Point72 Asset Management	1M	$11.1M	0.01%	Jun 30, 2026
Ken Griffin	Citadel Advisors	696.8K	$7.6M	0.00%	Jun 30, 2026

Izzy EnglanderJun 30, 2026
Millennium Management
Shares
3.4M
Value
$36.6M
% Portfolio
0.01%
Steve CohenJun 30, 2026
Point72 Asset Management
Shares
1M
Value
$11.1M
% Portfolio
0.01%
Ken GriffinJun 30, 2026
Citadel Advisors
Shares
696.8K
Value
$7.6M
% Portfolio
0.00%

Previously held PHAT

These investors reported PHAT in an earlier quarter but not in their most recent 13F. Figures below are their last reported position, not a current holding.

Investor	Firm	Last reported shares	Value then	Last held
Paul Tudor Jones	Tudor Investment Corp	38.2K	$424.7K	Mar 31, 2026

Recent activity

Investor	Action	Δ %	Current value	Filing date
Steve Cohen	New	—	$8M	Nov 14, 2024
Steve Cohen	Sold	-100.00%	$0	Feb 14, 2025

Steve Cohen
New
$8MNov 14, 2024
Steve Cohen
Sold
$0(-100.00%)Feb 14, 2025

Frequently asked questions

How many institutional investors hold PHAT?: 3 tracked institutional investors disclosed a position in PHAT (PHATHOM PHARMACEUTICALS INC) in their most recent 13F filing.
Who is the largest institutional holder of PHAT?: Izzy Englander, Millennium Management, holds the largest disclosed position in PHAT, valued at $60M.
Did institutional ownership of PHAT increase or decrease?: Across recent 13F filings, tracked investors recorded 1 new positions, 0 increased, 0 reduced, and 1 fully exited PHAT.
Where does this PHAT ownership data come from?: SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.