Who Owns Phathom Pharmaceuticals, Inc. (PHAT)?Hedge Fund & Institutional Holders

$10.40+0.03 (+0.29%)HealthcareNASDAQ

Institutional Holders

50

as of Q4 2025

Total Institutional Value

$InfinityT

% of Float Held

2.6080263577477217e+292%

QoQ Change in Holders

+5 / -2

Price History

$2.29$6.59$10.89$15.20$19.50Sep 24Jun 25Mar 26

PHAT — Biggest New Institutional Buyers This Quarter

FundActionShares AddedValue Added
Invesco Ltd.Increased+55K+$19.5B
Divisadero Street Capital Management, LPNew Position+662K+$11.0B
Catalys Pacific, LLCIncreased+262K+$10.0B
SUSQUEHANNA INTERNATIONAL GROUP, LLPIncreased+395K+$7.2B
NEXT CENTURY GROWTH INVESTORS LLCNew Position+394K+$6.5B
Simplify Asset Management Inc.New Position+322K+$5.3B
SummitTX Capital, L.P.Increased+132K+$4.0B
BANK OF AMERICA CORP /DE/Increased+10K+$4.0B
GOLDMAN SACHS GROUP INCIncreased+240K+$3.2B
D. E. Shaw & Co., Inc.New Position+261K+$3.0B
CAXTON ASSOCIATES LLPIncreased+143K+$2.5B
JPMORGAN CHASE & COIncreased+160K+$2.4B
Birchview Capital, LPIncreased+110K+$2.2B
Hennion & Walsh Asset Management, Inc.New Position+115K+$1.9B
CHARLES SCHWAB INVESTMENT MANAGEMENT INCIncreased+32K+$1.7B

PHAT — Institutions Reducing or Closing Positions

FundActionShares SoldValue Sold
MILLENNIUM MANAGEMENT LLCDecreased-3.0M-$25.8B
AMERIPRISE FINANCIAL INCDecreased-369K-$3.5B
Walleye Capital LLCClosed Position-290K-$3.4B
NewEdge Advisors, LLCDecreased-700-$2.2B
CITADEL ADVISORS LLCDecreased-197K-$2.0B
ROYAL BANK OF CANADADecreased-140K-$1.9B
Catalio Capital Management, LPDecreased-430K-$1.7B
ExodusPoint Capital Management, LPDecreased-49K-$838.9M
RHUMBLINE ADVISERSDecreased-10K-$726.4M
WELLINGTON MANAGEMENT GROUP LLPDecreased-12K-$723.8M
XTX Topco LtdDecreased-15K-$642.5M
BARCLAYS PLCDecreased-43K-$510.7M
BALYASNY ASSET MANAGEMENT L.P.Decreased-88K-$474.0M
TUDOR INVESTMENT CORP ET ALDecreased-6K-$401.2M
PharVision Advisers, LLCClosed Position-31K-$364.5M

Top Institutional Holders(Q4 2025)

#FundSharesValue% of PortfolioType
1Frazier Life Sciences Management, L.P.12,466,489$206.8B5.55%Share
2Carlyle Group Inc.3,496,808$58.0B427.34%Share
3Invesco Ltd.3,147,908$52.2B8.01%Share
4Ensign Peak Advisors, Inc2,352,020$39.0B68.89%Share
5MILLENNIUM MANAGEMENT LLC2,082,180$34.0B14.30%Share
6NEA Management Company, LLC1,960,169$32.5B1.66%Share
7683 Capital Management, LLC1,785,000$29.6B1.29%Share
8Catalys Pacific, LLC1,429,014$23.7B7.63%Share
9WASATCH ADVISORS LP1,331,669$22.1B131.27%Share
10Catalio Capital Management, LP698,996$11.6B2.05%Share
11Divisadero Street Capital Management, LP662,312$11.0B0.51%Share
12MOORE CAPITAL MANAGEMENT, LP600,000$10.0B143.28%Share
13SUSQUEHANNA INTERNATIONAL GROUP, LLP549,171$9.0B1.04%Share
14SummitTX Capital, L.P.517,820$8.6B0.26%Share
15Caption Management, LLC486,300$8.1B55.32%Call
16Invesco Ltd.443,834$7.4B1.13%Share
17NEXT CENTURY GROWTH INVESTORS LLC393,774$6.5B0.45%Share
18CHARLES SCHWAB INVESTMENT MANAGEMENT INC397,910$6.0B0.93%Share
19Simplify Asset Management Inc.321,935$5.3B87.18%Share
20GOLDMAN SACHS GROUP INC341,909$5.0B0.62%Share
21SUSQUEHANNA INTERNATIONAL GROUP, LLP317,600$5.0B0.58%Call
22NORTHERN TRUST CORP314,664$5.0B0.64%Share
23Invesco Ltd.290,528$4.8B0.74%Share
24JPMORGAN CHASE & CO263,925$4.0B0.25%Share
25CITADEL ADVISORS LLC290,036$4.0B0.60%Share
26BANK OF AMERICA CORP /DE/246,427$4.0B0.29%Share
27UBS Group AG237,825$3.9B0.64%Share
28Avidity Partners Management LP206,076$3.4B0.99%Share
29Birchview Capital, LP195,000$3.2B1.89%Share
30CAXTON ASSOCIATES LLP181,968$3.0B58.74%Share
31AMERIPRISE FINANCIAL INC185,715$3.0B0.68%Share
32BALYASNY ASSET MANAGEMENT L.P.207,085$3.0B3.81%Share
33Woodline Partners LP187,291$3.0B11.62%Share
34GILDER GAGNON HOWE & CO LLC145,174$2.4B25.42%Share
35D. E. Shaw & Co., Inc.171,379$2.0B1.10%Share
36SIMPLEX TRADING, LLC172,300$2.0B1.13%Call
37Hennion & Walsh Asset Management, Inc.114,981$1.9B0.07%Share
38GROUP ONE TRADING LLC103,684$1.7B3.00%Share
39UBS Group AG64,185$1.1B0.17%Share
40DARK FOREST CAPITAL MANAGEMENT LP62,248$1.0B0.05%Share
41WELLINGTON MANAGEMENT GROUP LLP90,158$1.0B0.18%Share
42Nuveen, LLC101,905$1.0B0.26%Share
43Swiss National Bank84,000$1.0B0.60%Share
44D. E. Shaw & Co., Inc.89,689$1.0B0.55%Share
45BARCLAYS PLC84,834$1.0B0.24%Share
46CITADEL ADVISORS LLC69,300$1.0B0.15%Call
47Stratos Wealth Partners, LTD.50,300$834.0M9.43%Share
48Virtus Investment Advisers, LLC46,937$778.0M0.21%Share
49ADAR1 Capital Management, LLC42,900$711.0M0.05%Share
50Kera Capital Partners, Inc.24,255$331.0M0.04%Share

PHAT Institutional Ownership History

QuarterHoldersTotal ValueChange
Q4 2025172$643.3B+59
Q3 2025113$504.3B+13
Q2 2025100$350.4B-37
Q1 2025137$317.9B-4
Q4 2024141$508.8B+31
Q3 2024110$5.4T+18
Q2 202492$3.4T+3
Q1 202489$633.4T—

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As of Q4 2025, 50 institutional investors hold PHAT (Phathom Pharmaceuticals, Inc.). The largest holder is Frazier Life Sciences Management, L.P. with $206.8B in shares. This quarter, 5 institutions opened new positions and 2 closed their positions.

Frequently Asked Questions

How many hedge funds own PHAT?

As of Q4 2025, 50 institutional investors report holding PHAT (Phathom Pharmaceuticals, Inc.) in their 13F filings.

Who is the largest institutional holder of PHAT?

The largest institutional holder of PHAT is Frazier Life Sciences Management, L.P. with $206.8B in shares.

Is institutional ownership of PHAT increasing or decreasing?

This quarter, 5 institutions opened new positions in PHAT and 2 closed their positions.