SEC 13F Intelligence

PHATPHATHOM PHARMACEUTICALS INC

CUSIP 71722W107 · Yahoo Finance ↗ · Google Finance ↗

Phathom Pharmaceuticals Inc (PHAT) has 174 institutional holders in Filings Flow’s 13F database, together reporting 69.18M shares worth $749M as of Q1 2026. The largest reported holders are Frazier Life Sciences Management, L.P., Medicxi Ventures Management (Jersey) Ltd, and Vanguard Group Inc.

Institutional Holders
174
Q1 2026
Reported Value
$749M
Ticker
PHAT
Quarters Tracked
6

Ownership Trend

Institutional holders
Q2 ’21: 67Q2 ’21Q4 ’21: 72Q4 ’21Q4 ’22: 78Q4 ’22Q4 ’25: 171Q4 ’25Q1 ’26: 174Q1 ’26Q2 ’26: 9Q2 ’26filingsflow.com
Total reported value
Q2 ’21: $694MQ2 ’21Q4 ’21: $564MQ4 ’21Q4 ’22: $264MQ4 ’22Q4 ’25: $1000MQ4 ’25Q1 ’26: $749MQ1 ’26Q2 ’26: $6MQ2 ’26filingsflow.com

Holders

Mixed quarters
Manager% of PortfolioValueSharesQuarter
Medicxi Ventures Management (Jersey) Ltd$982M AUM8.45%$83M7.46MQ1 2026OLDER
Catalys Pacific, LLC$231M AUM7.19%$17M1.49MQ1 2026OLDER
Propel Bio Management, LLC$159M AUM5.90%$9M841.3KQ1 2026OLDER
Frazier Life Sciences Management, L.P.$3.9B AUM3.56%$139M12.47MQ1 2026OLDER
StepStone Group LP$207M AUM2.26%$5M422.1KQ1 2026OLDER
AIGH Capital Management LLC$733M AUM1.42%$5M429.0KQ3 2025OLDER
NEA Management Company, LLC$1.8B AUM1.24%$22M1.96MQ1 2026OLDER
Birchview Capital, LP$176M AUM1.23%$2M195.0KQ1 2026OLDER
Avidity Partners Management LP$936M AUM1.13%$6M498.8KQ1 2026OLDER
683 Capital Management, LLC$1.9B AUM1.07%$21M1.85MQ1 2026OLDER
Catalio Capital Management, LP$479M AUM0.58%$3M247.8KQ1 2026OLDER
Divisadero Street Capital Management, LP$2.4B AUM0.51%$11M662.3KQ4 2025OLDER
NEXT CENTURY GROWTH INVESTORS LLC$1.4B AUM0.45%$7M393.8KQ4 2025OLDER
Carlyle Group Inc.$10.6B AUM0.37%$39M3.50MQ1 2026OLDER
SummitTX Capital, L.P.$3.2B AUM0.35%$11M995.9KQ1 2026OLDER
EcoR1 Capital, LLC$2.4B AUM0.29%$7M625.0KQ1 2026OLDER
Stonepine Capital Management, LLC$250M AUM0.22%$555,61150.0KQ1 2026OLDER
HUSSMAN STRATEGIC ADVISORS, INC.$463M AUM0.20%$933,24084.0KQ1 2026OLDER
PERCEPTIVE ADVISORS LLC$5.1B AUM0.20%$10M925.0KQ1 2026OLDER
Virtus Investment Advisers, LLC$363M AUM0.18%$644,22458.0KQ1 2026OLDER
VARCOV Co.$268M AUM0.16%$435,21239.2KQ1 2026OLDER
MOORE CAPITAL MANAGEMENT, LP$4.9B AUM0.14%$10M600.0KQ4 2025OLDER
Scientech Research LLC$120M AUM0.13%$213,66312.9KQ4 2025OLDER
9823 Capital, L.P.$132M AUM0.12%$173,01710.4KQ4 2025OLDER
Persistent Asset Partners Ltd$268M AUM0.11%$297,37126.8KQ1 2026OLDER
DIADEMA PARTNERS LP$588M AUM0.10%$607,16254.6KQ1 2026OLDER
Hennion & Walsh Asset Management, Inc.$3.5B AUM0.10%$4M327.3KQ2 2026
WASATCH ADVISORS LP$15.1B AUM0.10%$15M1.34MQ1 2026OLDER
PRIMORIS WEALTH ADVISORS, LLC$143M AUM0.09%$127,20011.4KQ1 2026OLDER
Caitong International Asset Management Co., Ltd$541M AUM0.07%$26,6441.6KQ4 2025OLDER
Southeast Asset Advisors, LLC$913M AUM0.07%$711,28042.9KQ4 2025OLDER
Occidental Asset Management, LLC$844M AUM0.06%$496,35629.9KQ4 2025OLDER
CAXTON ASSOCIATES LLP$4.4B AUM0.06%$3M182.0KQ4 2025OLDER
Caption Management, LLC$17.1B AUM0.06%$8M486.3KQ4 2025OLDER
FOX RUN MANAGEMENT, L.L.C.$572M AUM0.05%$339,87920.5KQ4 2025OLDER
Simplify Asset Management Inc.$6.5B AUM0.04%$3M262.4KQ1 2026OLDER
Susquehanna Portfolio Strategies, LLC$6.7B AUM0.04%$3M268.0KQ1 2026OLDER
Burkehill Global Management, LP$2.0B AUM0.04%$833,25075.0KQ1 2026OLDER
Bridgefront Capital, LLC$402M AUM0.04%$166,13915.0KQ1 2026OLDER
AXQ CAPITAL, LP$777M AUM0.04%$174,85910.5KQ4 2025OLDER
Campbell & CO Investment Adviser LLC$1.8B AUM0.04%$689,07662.0KQ1 2026OLDER
Kera Capital Partners, Inc.$815M AUM0.04%$298,03726.8KQ1 2026OLDER
SIG BROKERAGE, LP$3.8B AUM0.04%$1M120.0KQ1 2026OLDER
Summit Financial Wealth Advisors, LLC$705M AUM0.03%$246,00922.1KQ1 2026OLDER
Ensign Peak Advisors, Inc$53.7B AUM0.03%$18M1.63MQ1 2026OLDER
XTX Topco Ltd$5.8B AUM0.03%$2M160.5KQ1 2026OLDER
ADAR1 Capital Management, LLC$1.7B AUM0.03%$476,61942.9KQ1 2026OLDER
INSPIRION WEALTH ADVISORS, LLC$874M AUM0.02%$209,79419.9KQ2 2026
Trexquant Investment LP$13.9B AUM0.02%$3M293.3KQ1 2026OLDER
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.$58.4B AUM0.02%$13M1.21MQ1 2026OLDER
Dynamic Technology Lab Private Ltd$615M AUM0.02%$134,55312.1KQ1 2026OLDER
GILDER GAGNON HOWE & CO LLC$8.3B AUM0.02%$2M139.9KQ1 2026OLDER
MILLENNIUM MANAGEMENT LLC$240.3B AUM0.02%$45M4.02MQ1 2026OLDER
Quarry LP$558M AUM0.02%$82,4727.0KQ3 2025OLDER
DARK FOREST CAPITAL MANAGEMENT LP$1.1B AUM0.02%$193,98117.5KQ1 2026OLDER
Baader Bank Aktiengesellschaft$1.3B AUM0.02%$248,85015.0KQ4 2025OLDER
Woodline Partners LP$26.4B AUM0.02%$4M369.1KQ1 2026OLDER
RiverPark Advisors, LLC$276M AUM0.01%$46,5682.8KQ4 2025OLDER
Aquatic Capital Management LLC$3.5B AUM0.01%$453,86640.9KQ1 2026OLDER
Walleye Capital LLC$24.0B AUM0.01%$3M290.5KQ3 2025OLDER
Stratos Wealth Partners, LTD.$8.8B AUM0.01%$1M100.0KQ1 2026OLDER
China Universal Asset Management Co., Ltd.$1.3B AUM0.01%$155,35114.0KQ1 2026OLDER
Y-Intercept (Hong Kong) Ltd$5.3B AUM0.01%$505,79630.5KQ4 2025OLDER
Engineers Gate Manager LP$8.0B AUM0.01%$820,45173.8KQ1 2026OLDER
Entropy Technologies, LP$2.2B AUM0.01%$182,49011.0KQ4 2025OLDER
MARSHALL WACE, LLP$100.4B AUM0.01%$10M860.7KQ1 2026OLDER
Brevan Howard Capital Management LP$11.3B AUM0.01%$1M94.6KQ1 2026OLDER
Invesco Ltd.$653.3B AUM0.01%$48M4.32MQ1 2026OLDER
NewEdge Advisors, LLC$27.7B AUM0.01%$2M183.0KQ2 2026
PROFUND ADVISORS LLC$2.7B AUM0.01%$183,13716.5KQ1 2026OLDER
Freestone Grove Partners LP$14.2B AUM0.01%$939,60684.6KQ1 2026OLDER
State of Wyoming$844M AUM0.01%$54,8394.9KQ1 2026OLDER
SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC$2.7B AUM0.01%$190,33711.5KQ4 2025OLDER
TOCQUEVILLE ASSET MANAGEMENT L.P.$6.7B AUM0.01%$391,07235.2KQ1 2026OLDER
RENAISSANCE TECHNOLOGIES LLC$63.9B AUM0.01%$3M305.8KQ1 2026OLDER
Graham Capital Management, L.P.$4.1B AUM0.01%$213,46412.9KQ4 2025OLDER
Bear Mountain Capital, Inc.$333M AUM0.00%$14,0001.0KQ3 2025OLDER
TWO SIGMA INVESTMENTS, LP$123.9B AUM0.00%$5M482.1KQ1 2026OLDER
SUMMIT SECURITIES GROUP LLC$810M AUM0.00%$33,8633.0KQ1 2026OLDER
Jump Financial, LLC$7.5B AUM0.00%$293,80426.4KQ1 2026OLDER
ALLSTATE CORP$9.4B AUM0.00%$363,15332.7KQ1 2026OLDER
Squarepoint Ops LLC$85.1B AUM0.00%$3M275.2KQ1 2026OLDER
C M BIDWELL & ASSOCIATES LTD$214M AUM0.00%$6,555590Q1 2026OLDER
FRANKLIN RESOURCES INC$408.3B AUM0.00%$11M994.5KQ1 2026OLDER
DRW Securities, LLC$7.2B AUM0.00%$176,88215.9KQ1 2026OLDER
KESTRA PRIVATE WEALTH SERVICES, LLC$8.1B AUM0.00%$182,43515.5KQ3 2025OLDER
FIDUCIARY TRUST CO$8.5B AUM0.00%$200,72418.1KQ1 2026OLDER
CITADEL ADVISORS LLC$618.5B AUM0.00%$10M918.2KQ1 2026OLDER
Quadrature Capital Ltd$8.4B AUM0.00%$134,18712.1KQ1 2026OLDER
MetLife Investment Management, LLC$19.6B AUM0.00%$287,13825.8KQ1 2026OLDER
OMERS ADMINISTRATION Corp$15.6B AUM0.00%$194,20516.5KQ3 2025OLDER
BALYASNY ASSET MANAGEMENT L.P.$77.1B AUM0.00%$1M95.3KQ1 2026OLDER
INTECH INVESTMENT MANAGEMENT LLC$10.2B AUM0.00%$126,07611.3KQ1 2026OLDER
Schonfeld Strategic Advisors LLC$14.2B AUM0.00%$173,47015.6KQ1 2026OLDER
Ameritas Investment Partners, Inc.$3.3B AUM0.00%$39,1853.5KQ1 2026OLDER
ExodusPoint Capital Management, LP$12.6B AUM0.00%$147,68513.3KQ1 2026OLDER
Police & Firemen's Retirement System of New Jersey$11.7B AUM0.00%$132,48711.9KQ1 2026OLDER
STATE OF WISCONSIN INVESTMENT BOARD$43.7B AUM0.00%$488,88444.0KQ1 2026OLDER
LOS ANGELES CAPITAL MANAGEMENT LLC$25.4B AUM0.00%$274,15024.7KQ1 2026OLDER
Russell Investments Group, Ltd.$93.1B AUM0.00%$951,94085.7KQ1 2026OLDER
VANGUARD FIDUCIARY TRUST CO$396.1B AUM0.00%$4M338.7KQ1 2026OLDER
GEODE CAPITAL MANAGEMENT, LLC$1.61T AUM0.00%$15M1.33MQ1 2026OLDER
D. E. Shaw & Co., Inc.$166.3B AUM0.00%$1M132.5KQ1 2026OLDER
Jain Global LLC$24.2B AUM0.00%$202,89118.3KQ1 2026OLDER
Arizona State Retirement System$17.1B AUM0.00%$142,84112.9KQ1 2026OLDER
Fortitude Family Office, LLC$448M AUM0.00%$3,451208Q4 2025OLDER
GOLDMAN SACHS GROUP INC$870.9B AUM0.00%$7M626.2KQ1 2026OLDER
Rafferty Asset Management, LLC$24.6B AUM0.00%$229,85413.9KQ4 2025OLDER
BlackRock, Inc.$5.72T AUM0.00%$45M4.06MQ1 2026OLDER
TUDOR INVESTMENT CORP ET AL$53.9B AUM0.00%$424,68038.2KQ1 2026OLDER
VANGUARD GROUP INC$6.90T AUM0.00%$53M3.18MQ4 2025OLDER
Savant Capital, LLC$20.7B AUM0.00%$138,54511.8KQ3 2025OLDER
VANGUARD CAPITAL MANAGEMENT LLC$4.04T AUM0.00%$29M2.58MQ1 2026OLDER
CHARLES SCHWAB INVESTMENT MANAGEMENT INC$654.5B AUM0.00%$5M409.0KQ1 2026OLDER
State of New Jersey Common Pension Fund D$25.9B AUM0.00%$177,72716.0KQ1 2026OLDER
Pathstone Holdings, LLC$25.1B AUM0.00%$166,65015.0KQ1 2026OLDER
AMERIPRISE FINANCIAL INC$431.8B AUM0.00%$3M254.2KQ1 2026OLDER
Larson Financial Group LLC$3.1B AUM0.00%$19,6311.8KQ1 2026OLDER
Man Group plc$55.1B AUM0.00%$337,21130.4KQ1 2026OLDER
KLP KAPITALFORVALTNING AS$25.5B AUM0.00%$155,54014.0KQ1 2026OLDER
NORTHERN TRUST CORP$756.6B AUM0.00%$5M415.0KQ1 2026OLDER
Zurcher Kantonalbank (Zurich Cantonalbank)$46.0B AUM0.00%$277,66125.0KQ1 2026OLDER
UBS Group AG$666.3B AUM0.00%$4M360.4KQ1 2026OLDER
Swiss National Bank$173.8B AUM0.00%$1M92.6KQ1 2026OLDER
SUSQUEHANNA INTERNATIONAL GROUP, LLP$893.3B AUM0.00%$5M458.1KQ1 2026OLDER
Tower Research Capital LLC (TRC)$3.8B AUM0.00%$21,5651.9KQ1 2026OLDER
STIFEL FINANCIAL CORP$108.8B AUM0.00%$600,37454.0KQ1 2026OLDER
STATE STREET CORP$2.90T AUM0.00%$15M1.39MQ1 2026OLDER
Private Advisor Group, LLC$21.3B AUM0.00%$113,10010.2KQ1 2026OLDER
Creative Planning$147.4B AUM0.00%$779,84470.2KQ1 2026OLDER
RHUMBLINE ADVISERS$116.9B AUM0.00%$615,91455.4KQ1 2026OLDER
COMMONWEALTH EQUITY SERVICES, LLC$71.6B AUM0.00%$358,08032.2KQ1 2026OLDER
Allworth Financial LP$24.7B AUM0.00%$117,10010.5KQ1 2026OLDER
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM$94.5B AUM0.00%$446,86640.2KQ1 2026OLDER
Truvestments Capital LLC$554M AUM0.00%$2,500225Q1 2026OLDER
MCF Advisors LLC$2.3B AUM0.00%$7,400446Q4 2025OLDER
VANGUARD PORTFOLIO MANAGEMENT LLC$1.91T AUM0.00%$7M666.0KQ1 2026OLDER
Vanguard Investments Australia, Ltd.$34.6B AUM0.00%$125,27611.3KQ1 2026OLDER
QUADRANT CAPITAL GROUP LLC$3.3B AUM0.00%$12,1221.1KQ1 2026OLDER
GROUP ONE TRADING LLC$52.2B AUM0.00%$188,19216.9KQ1 2026OLDER
Nuveen, LLC$369.3B AUM0.00%$1M117.3KQ1 2026OLDER
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.$73.7B AUM0.00%$241,44321.7KQ1 2026OLDER
Quantbot Technologies LP$2.4B AUM0.00%$8,876535Q4 2025OLDER
GF FUND MANAGEMENT CO. LTD.$6.0B AUM0.00%$17,6431.6KQ1 2026OLDER
AQR CAPITAL MANAGEMENT LLC$218.4B AUM0.00%$616,24955.5KQ1 2026OLDER
VANGUARD ASSET MANAGEMENT, Ltd$117.0B AUM0.00%$316,70228.5KQ1 2026OLDER
True Wealth Design, LLC$360M AUM0.00%$97888Q1 2026OLDER
LAZARD ASSET MANAGEMENT LLC$60.8B AUM0.00%$162,99514.7KQ1 2026OLDER
ALLIANCEBERNSTEIN L.P.$308.8B AUM0.00%$819,38049.4KQ1 2026OLDER
Bank of New York Mellon Corp$543.9B AUM0.00%$1M124.0KQ1 2026OLDER
Sterling Capital Management LLC$5.3B AUM0.00%$13,3101.2KQ1 2026OLDER
WELLINGTON MANAGEMENT GROUP LLP$535.5B AUM0.00%$1M111.8KQ1 2026OLDER
Quantinno Capital Management LP$59.9B AUM0.00%$128,16511.5KQ1 2026OLDER
JPMORGAN CHASE & CO$1.56T AUM0.00%$3M287.4KQ1 2026OLDER
BANK OF AMERICA CORP /DE/$1.37T AUM0.00%$2M208.1KQ1 2026OLDER
ProShare Advisors LLC$67.5B AUM0.00%$113,83410.2KQ1 2026OLDER
NEW YORK STATE COMMON RETIREMENT FUND$71.6B AUM0.00%$119,65510.8KQ1 2026OLDER
GAMMA Investing LLC$2.7B AUM0.00%$4,340400Q2 2026
Vanguard Global Advisers, LLC$186.5B AUM0.00%$294,53726.5KQ1 2026OLDER
Kestra Advisory Services, LLC$26.4B AUM0.00%$37,7422.3KQ4 2025OLDER
Rachor Investment Advisory Services, LLC$190M AUM0.00%$27825Q1 2026OLDER
HUNTINGTON NATIONAL BANK$18.1B AUM0.00%$25,5982.3KQ1 2026OLDER
CITIGROUP INC$234.5B AUM0.00%$326,29029.4KQ1 2026OLDER
DEUTSCHE BANK AG\$302.7B AUM0.00%$405,06036.5KQ1 2026OLDER
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC$481.0B AUM0.00%$619,80455.8KQ1 2026OLDER
JANE STREET GROUP, LLC$777.2B AUM0.00%$979,90288.2KQ1 2026OLDER
MANUFACTURERS LIFE INSURANCE COMPANY, THE$116.3B AUM0.00%$143,40812.9KQ1 2026OLDER
MassMutual Private Wealth & Trust, FSB$3.9B AUM0.00%$4,633427Q2 2026
MORGAN STANLEY$1.67T AUM0.00%$2M117.8KQ1 2026OLDER
Janus Henderson Group Ltd.$209.4B AUM0.00%$239,40321.5KQ1 2026OLDER
WELLS FARGO & COMPANY/MN$530.3B AUM0.00%$512,31546.1KQ2 2026
NISA INVESTMENT ADVISORS, LLC$27.0B AUM0.00%$25,4202.3KQ1 2026OLDER
RAYMOND JAMES FINANCIAL INC$324.4B AUM0.00%$292,50426.3KQ1 2026OLDER
Legal & General Group Plc$432.4B AUM0.00%$355,93232.0KQ1 2026OLDER
Rockefeller Capital Management L.P.$56.4B AUM0.00%$45,4964.1KQ1 2026OLDER
BARCLAYS PLC$416.3B AUM0.00%$281,71625.4KQ1 2026OLDER
PRICE T ROWE ASSOCIATES INC /MD/$865M AUM0.00%$58352.5KQ1 2026OLDER
ELEVATION WEALTH PARTNERS, LLC$334M AUM0.00%$21720Q2 2026
BNP PARIBAS FINANCIAL MARKETS$205.8B AUM0.00%$125,89911.3KQ1 2026OLDER
CWM, LLC$38.1B AUM0.00%$20,7091.9KQ1 2026OLDER
CANADA PENSION PLAN INVESTMENT BOARD$155.0B AUM0.00%$76,3144.6KQ4 2025OLDER
LPL Financial LLC$376.6B AUM0.00%$191,17017.2KQ1 2026OLDER
SIGNATUREFD, LLC$6.5B AUM0.00%$2,655239Q1 2026OLDER
OSAIC HOLDINGS, INC.$68.3B AUM0.00%$25,5972.3KQ1 2026OLDER
Farther Finance Advisors, LLC$10.6B AUM0.00%$3,888349Q1 2026OLDER
Parallel Advisors, LLC$5.6B AUM0.00%$1,111100Q2 2026
JONES FINANCIAL COMPANIES LLLP$208.1B AUM0.00%$37,3053.5KQ1 2026OLDER
Stone House Investment Management, LLC$558M AUM0.00%$898Q1 2026OLDER
Mirae Asset Global Investments Co., Ltd.$299.3B AUM0.00%$45,6624.1KQ1 2026OLDER
FEDERATED HERMES, INC.$61.5B AUM0.00%$9,108549Q4 2025OLDER
SIMPLEX TRADING, LLC$149.1B AUM0.00%$26,5271.6KQ4 2025OLDER
Daiwa Securities Group Inc.$34.8B AUM0.00%$4260Q4 2025OLDER
BNP Paribas Asset Management Holding S.A.$86.1B AUM0.00%$9,877889Q1 2026OLDER
ROYAL BANK OF CANADA$570.1B AUM0.00%$64,0005.8KQ1 2026OLDER
PNC FINANCIAL SERVICES GROUP, INC.$173.2B AUM0.00%$15,4091.4KQ1 2026OLDER
SBI Securities Co., Ltd.$3.6B AUM0.00%$27123Q3 2025OLDER
Root Financial Partners, LLC$2.2B AUM0.00%$12211Q1 2026OLDER
FMR LLC$1.90T AUM0.00%$78,0427.0KQ1 2026OLDER
EverSource Wealth Advisors, LLC$3.3B AUM0.00%$13412Q1 2026OLDER
US BANCORP \DE\$82.4B AUM0.00%$3,277295Q1 2026OLDER
Arax Advisory Partners$3.5B AUM0.00%$1006Q4 2025OLDER
Hughes Financial Services, LLC$651M AUM0.00%$111Q1 2026OLDER
MAI Capital Management$17.7B AUM0.00%$25623Q1 2026OLDER
Optiver Holding B.V.$289.5B AUM0.00%$3,133282Q2 2026
IFP Advisors, Inc$4.8B AUM0.00%$111Q1 2026OLDER

Holdings are reported up to 45 days after quarter end. Share counts are as filed and not adjusted for stock splits.