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Disclosery

PHAT PHATHOM PHARMACEUTICALS INC

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COMMON STOCK (common), issuer CIK 1783183

135 managers (138 13F filers) reported a position in PHAT shares at 2025-03-31, 64,025,016 shares in all. 24 filers opened a position and 31 filers sold out during the quarter.

Managers
135
13F filers
138
New
24
Added
47
Reduced
36
Sold out
31
Shares held by filers
64,025,016

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

The latest Form 4 transactions, non-derivative.
OwnerDateSharesPriceFiling
Narula Sanjeevofficer (Chief Financial & Bus. Officer)2026-10-06-13,485 F$6.78Form 4

13F holders, Q1 2025

Filers in the available 13F reports with a share position at 2025-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Frazier Life Sciences Management, L.P.10,109,279$63.4M2.9%013F-HRTimeline
Medicxi Ventures Management (Jersey) Ltd7,464,572$46.8M10.69%013F-HRTimeline
JENNISON ASSOCIATES LLC7,042,325$44.2M0.03%-20,18213F-HRTimeline
Invesco Ltd.in group Invesco Ltd.3,650,812$22.9M<0.01%-20,57413F-HRTimelineGroup
Carlyle Group Inc.in group Carlyle Group Inc.3,496,808$21.9M0.58%013F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.3,323,603$20.8M<0.01%-178,77213F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC2,778,687$17.4M<0.01%-87413F-HRTimelineGroup
Ensign Peak Advisors, Inc2,514,284$15.8M0.03%-12,77013F-HRTimeline
NEA Management Company, LLC1,960,169$12.3M0.95%013F-HRTimeline
WASATCH ADVISORS LP1,701,627$10.7M0.06%+142,69913F-HRTimeline
683 Capital Management, LLCin group 683 Capital Management, LLC1,445,000$9.06M0.92%+420,00013F-HRTimelineGroup
TANG CAPITAL MANAGEMENT LLCin group TANG CAPITAL MANAGEMENT LLC1,200,000$7.52M0.42%+700,00013F-HRTimelineGroup
Catalys Pacific, LLC1,167,114$7.32M4.92%013F-HR/ATimeline
Propel Bio Management, LLC1,134,927$7.12M8.27%+145,00013F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY1,131,032$7.09M<0.01%+164,63213F-HRTimelineGroup
GW&K Investment Management, LLC1,104,308$6.92M0.06%+1,50313F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,016,423$6.37M<0.01%-2,07213F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP901,354$5.65M<0.01%-138,58213F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding807,322$5.06M+223,903Timeline
Avidity Partners Management LP800,000$5.02M1.03%-590,10013F-HRTimeline
Woodline Partners LP751,692$4.71M0.03%-250,00013F-HRTimeline
Simplify Asset Management Inc.681,935$4.28M0.2%+100,00013F-HRTimeline
JACOBS LEVY EQUITY MANAGEMENT, INC596,108$3.74M0.01%new13F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC568,630$3.57M0.01%+105,29013F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC530,859$3.33M<0.01%+486,28213F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC523,363$3.28M<0.01%+463,37213F-HRTimelineGroup
FMR LLCin group FMR LLC509,582$3.2M<0.01%-291,81913F-HRTimelineGroup
StepStone Group LP422,085$2.65M2.72%013F-HRTimeline
Trexquant Investment LP398,751$2.5M0.03%+20,11413F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP386,623$2.42M<0.01%-11,34113F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co348,035$2.18M<0.01%-5,00313F-HR/ATimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP314,873$1.97M<0.01%+216,80513F-HRTimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…200,690$1.26M<0.01%+64,69513F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC187,874$1.18M<0.01%-224,38813F-HR/ATimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC179,721$1.13M<0.01%+107,71413F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding172,611$1.08M-62,793Timeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/170,281$1.07M<0.01%+3,77613F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO137,393$861K<0.01%+48613F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp114,535$718K<0.01%+11,78713F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC107,399$673K<0.01%+89,74113F-HRTimelineGroup
Nuveen, LLCin group TIAA101,520$637K<0.01%13F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD99,776$626K<0.01%-32,49313F-HRTimeline
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding97,327$610K-522,163Timeline
XTX Topco Ltdin group XTX Topco Ltd90,191$565K0.03%new13F-HRTimelineGroup
ExodusPoint Capital Management, LP79,311$497K0.01%new13F-HRTimeline
Swiss National Bank73,300$460K<0.01%013F-HRTimeline
Penn Mutual Asset Management62,802$394K0.76%013F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC60,056$377K<0.01%+38,98613F-HRTimeline
Creative Planningin group Creative Planning59,937$376K<0.01%+36,69413F-HRTimelineGroup
RHUMBLINE ADVISERS56,739$356K<0.01%+77113F-HR/ATimeline
BARCLAYS PLCin group BARCLAYS PLC54,902$344K<0.01%-21,56113F-HR/ATimelineGroup
COMMONWEALTH EQUITY SERVICES, LLC52,431$329K<0.01%+1,65913F-HRTimeline
Balyasny Asset Management L.P.in group Balyasny Asset Management45,831$287K<0.01%new13F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.45,590$286K<0.01%013F-HRTimeline
Virtus Investment Advisers, LLCgroup of 2 filers holding44,964$282K+1,175Timeline
ADAR1 Capital Management, LLCin group ADAR1 Capital Management, LLC42,800$268K0.05%-12,60013F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…41,799$262K<0.01%new13F-HRTimelineGroup
GILDER GAGNON HOWE & CO LLC41,566$261K<0.01%-4413F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc36,438$229K<0.01%013F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…35,262$221K<0.01%013F-HRTimeline
HRT FINANCIAL LP33,297$208K<0.01%new13F-HRTimeline
Summit Financial Wealth Advisors, LLC31,143$195K0.04%-36,98213F-HRTimeline
Kera Capital Partners, Inc.29,849$187K0.06%+3,00013F-HRTimeline
Occidental Asset Management, LLC29,672$186K0.03%013F-HRTimeline
Nebula Research & Development LLC28,821$181K0.02%+7,85813F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN28,425$178K<0.01%+2,90913F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\27,172$170K<0.01%-3,04113F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/27,013$170K<0.01%+1,37213F-HRTimeline
Engineers Gate Manager LP26,623$167K<0.01%-5,87713F-HRTimeline
SHERBROOKE PARK ADVISERS LLC26,307$165K0.08%new13F-HRTimeline
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding25,451$160K+1,023Timeline
KEYBANK NATIONAL ASSOCIATION/OHin group KEYBANK NATIONAL ASSOCIATION/…25,512$160K<0.01%013F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…24,366$153K<0.01%013F-HRTimelineGroup
US BANCORP \DE\in group US BANCORP \DE\23,763$149K<0.01%+16,93713F-HRTimelineGroup
SIMPLEX TRADING, LLC22,474$140K<0.01%+17,07913F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC21,484$135K<0.01%+4,06013F-HRTimeline
INSPIRION WEALTH ADVISORS, LLC19,864$125K0.02%-10013F-HRTimeline
Corebridge Financial, Inc.in group Corebridge Financial, Inc.19,532$122K<0.01%+2413F-HRTimelineGroup
Corton Capital Inc.18,384$115K0.38%new13F-HRTimeline
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP17,398$109K<0.01%new13F-HRTimelineGroup
Zurcher Kantonalbank (Zurich Cantonalba…15,710$98.5K<0.01%013F-HRTimeline
KESTRA PRIVATE WEALTH SERVICES, LLCin group Kestra Advisory Services, LLC15,500$97.2K<0.01%013F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …14,462$90.7K<0.01%+47213F-HRTimelineGroup
China Universal Asset Management Co., L…13,715$86K0.01%-78413F-HRTimeline
Allworth Financial LP20,478$84.4K<0.01%+3013F-HRTimeline
ProShare Advisors LLC11,714$73.4K<0.01%-2,57513F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.11,250$70.5K<0.01%+7,95813F-HRTimelineGroup
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC11,070$69.4K<0.01%-61913F-HR/ATimelineGroup
Fiduciary Trust Coin group Fiduciary Trust Co10,905$68.4K<0.01%new13F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND10,770$67.5K<0.01%013F-HR/ATimeline
ARIZONA STATE RETIREMENT SYSTEM10,768$67.5K<0.01%-13213F-HRTimeline
Atom Investors LP10,394$65.2K0.01%new13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA10,182$64K<0.01%-1,40513F-HR/ATimelineGroup
TEACHER RETIREMENT SYSTEM OF TEXAS10,122$63.5K<0.01%-94313F-HRTimeline
STALEY CAPITAL ADVISERS INC10,000$62.7K<0.01%013F-HRTimeline
KLP KAPITALFORVALTNING AS9,100$57.1K<0.01%013F-HRTimeline
Police & Firemen's Retirement System of…8,251$51.7K<0.01%013F-HRTimeline
CWM, LLCin group CWM, LLC7,384$46K<0.01%+7,34913F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…3,608$22.6K<0.01%-80613F-HRTimelineGroup
Brooklyn Investment Group3,456$21.7K<0.01%new13F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…3,095$19.4K<0.01%013F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS2,950$18.5K<0.01%-36,58213F-HRTimelineGroup
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co2,839$18K<0.01%013F-HRTimelineGroup
GROUP ONE TRADING LLC2,404$15.1K<0.01%new13F-HRTimeline
GF FUND MANAGEMENT CO. LTD.1,751$11K<0.01%+31513F-HRTimeline
AlphaQuest LLC1,446$9.07K<0.01%+11213F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK1,386$8.69K<0.01%-11113F-HRTimelineGroup
AMALGAMATED BANK1,354$8K<0.01%+26413F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…840$5K<0.01%013F-HRTimeline
GAMMA Investing LLC727$4.56K<0.01%+21913F-HR/ATimeline
Bear Mountain Capital, Inc.1,000$4.36K<0.01%013F-HRTimeline
Larson Financial Group LLC647$4.06K<0.01%-15013F-HRTimeline
Sterling Capital Management LLC562$3.52K<0.01%-30513F-HRTimeline
Farther Finance Advisors, LLC683$3.5K<0.01%+66613F-HRTimeline
SIGNATUREFD, LLC463$2.9K<0.01%new13F-HRTimeline
Parallel Advisors, LLC329$2.06K<0.01%new13F-HRTimeline
Daiwa Securities Group Inc.in group Daiwa Securities Group Inc.260$2K<0.01%013F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…310$1.94K<0.01%+3713F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC268$1.68K<0.01%+24913F-HRTimeline
Lindbrook Capital, LLC254$1.59K<0.01%+9913F-HRTimeline
Versant Capital Management, Inc197$1.24K<0.01%new13F-HRTimeline
Caitong International Asset Management …113$709<0.01%-6613F-HRTimeline
COLDSTREAM CAPITAL MANAGEMENT INC109$684<0.01%new13F-HRTimeline
Parkside Financial Bank & Trust85$533<0.01%new13F-HRTimeline
QUADRANT CAPITAL GROUP LLC84$527<0.01%new13F-HRTimeline
SBI Securities Co., Ltd.50$314<0.01%new13F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…37$232<0.01%+1613F-HRTimelineGroup
ROTHSCHILD INVESTMENT LLC35$219<0.01%+2513F-HRTimeline
SVB WEALTH LLC34$213<0.01%new13F-HRTimeline
Amundiin group Amundi42$210<0.01%013F-HRTimelineGroup
ELEVATION WEALTH PARTNERS, LLC20$126<0.01%013F-HRTimeline
True Wealth Design, LLC16$101<0.01%new13F-HRTimeline
IFP Advisors, Inc2$13<0.01%013F-HRTimeline
Covestor Ltd7$00%013F-HRTimelineValue filed as zero, left out of ratios.
CONCOURSE FINANCIAL GROUP SECURITIES, I…0$0013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.

Events

  • Narula Sanjeev disposed of 13,485 PHAT shares on 2026-10-06, Form 4 filed 2026-10-08. 0001193125-26-418114

    Accepted , ingested