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Disclosery

PHAT PHATHOM PHARMACEUTICALS INC

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COMMON STOCK (common), issuer CIK 1783183

169 managers (173 13F filers) reported a position in PHAT shares at 2025-12-31, 61,960,202 shares in all. 46 filers opened a position and 10 filers sold out during the quarter.

Managers
169
13F filers
173
New
46
Added
49
Reduced
50
Sold out
10
Shares held by filers
61,960,202

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, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, 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.12,466,489$207M5.55%013F-HRTimeline
Medicxi Ventures Management (Jersey) Ltd7,464,572$124M14.83%013F-HRTimeline
Invesco Ltd.in group Invesco Ltd.3,920,446$65M0.01%+55,47513F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.3,555,548$59M<0.01%+153,22413F-HRTimelineGroup
Carlyle Group Inc.in group Carlyle Group Inc.3,496,808$58M0.43%013F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC3,177,211$52.7M<0.01%-38,36113F-HRTimelineGroup
Ensign Peak Advisors, Inc2,352,020$39M0.07%-151,32413F-HR/ATimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC2,082,180$34.5M0.02%-2,999,27113F-HRTimelineGroup
NEA Management Company, LLC1,960,169$32.5M1.66%013F-HRTimeline
683 Capital Management, LLCin group 683 Capital Management, LLC1,785,000$29.6M2.46%-35,38013F-HRTimelineGroup
Catalys Pacific, LLC1,429,014$23.7M7.63%+261,90013F-HRTimeline
WASATCH ADVISORS LP1,331,669$22.1M0.13%-205,54913F-HRTimeline
GW&K Investment Management, LLC1,306,678$21.7M0.19%+162,34813F-HRTimeline
STATE STREET CORPin group STATE STREET CORP1,149,536$19.1M<0.01%+95,94513F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,073,434$17.8M<0.01%-15,47613F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 3 filers holding828,606$13.7M+394,894Timeline
Propel Bio Management, LLC740,918$12.3M10.49%+187,99113F-HRTimeline
Catalio Capital Management, LP698,996$11.6M2.05%-429,52513F-HR/ATimeline
Divisadero Street Capital Management, LPin group Divisadero Street Capital Man…662,312$11M0.63%new13F-HRTimelineGroup
MOORE CAPITAL MANAGEMENT, LP600,000$9.95M0.2%013F-HRTimeline
SummitTX Capital, L.P.517,820$8.59M0.26%+131,85213F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co397,910$6.6M<0.01%+32,00613F-HRTimelineGroup
NEXT CENTURY GROWTH INVESTORS LLC393,774$6.53M0.45%new13F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC392,045$6.5M<0.01%+240,01313F-HR/ATimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC384,770$6.38M0.01%+277,50813F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP356,466$5.91M<0.01%-1,11213F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding335,014$5.56M-3,346Timeline
Simplify Asset Management Inc.321,935$5.34M0.09%013F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC311,315$5.16M<0.01%-197,40513F-HRTimelineGroup
StepStone Group LP422,085$4.97M2.66%013F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO296,684$4.92M<0.01%+159,73613F-HRTimelineGroup
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…276,989$4.6M0.09%+218,89213F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.261,068$4.33M<0.01%new13F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/258,996$4.3M<0.01%+9,90213F-HRTimelineGroup
Balyasny Asset Management L.P.in group Balyasny Asset Management207,085$3.44M0.01%-88,07613F-HRTimelineGroup
Avidity Partners Management LP206,076$3.42M0.99%-99,92413F-HRTimeline
Birchview Capital, LP195,000$3.24M1.89%+110,00013F-HRTimeline
NewEdge Advisors, LLC200,823$3.16M0.01%-70013F-HRTimeline
Woodline Partners LP187,291$3.11M0.01%013F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC185,744$3.08M<0.01%-368,84613F-HRTimelineGroup
CAXTON ASSOCIATES LLP181,968$3.02M0.06%+143,39813F-HRTimeline
HUSSMAN STRATEGIC ADVISORS, INC.147,000$2.44M0.59%new13F-HRTimeline
GILDER GAGNON HOWE & CO LLC145,174$2.41M0.03%+56,63213F-HRTimeline
Trexquant Investment LP136,824$2.27M0.02%+58,64113F-HRTimeline
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…134,546$2.23M<0.01%-11,91313F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp122,967$2.04M<0.01%-4,41513F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY117,781$1.95M<0.01%-137,79213F-HR/ATimelineGroup
Campbell & CO Investment Adviser LLC115,284$1.91M0.09%new13F-HRTimeline
Hennion & Walsh Asset Management, Inc.114,981$1.91M0.07%new13F-HRTimeline
Nuveen, LLCin group TIAA108,846$1.81M<0.01%-1,26413F-HRTimelineGroup
GROUP ONE TRADING LLC103,684$1.72M0.05%+99,43613F-HRTimeline
VARCOV Co.86,759$1.44M0.57%13F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC84,859$1.41M<0.01%-43,49713F-HRTimelineGroup
Swiss National Bank84,000$1.39M<0.01%new13F-HRTimeline
GSA CAPITAL PARTNERS LLP82,624$1.37M0.12%+12,36613F-HRTimeline
Creative Planningin group Creative Planning80,766$1.34M<0.01%+2,70813F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN68,016$1.13M<0.01%+14,36813F-HRTimelineGroup
Penn Mutual Asset Management62,802$1.04M0.62%013F-HRTimeline
DARK FOREST CAPITAL MANAGEMENT LP62,248$1.03M0.05%new13F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP57,783$959K<0.01%new13F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC54,448$903K<0.01%+1,81913F-HRTimelineGroup
RHUMBLINE ADVISERS52,093$864K<0.01%-9,62013F-HRTimeline
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP51,661$857K<0.01%+31,79413F-HRTimelineGroup
Stratos Wealth Partners, LTD.in group Stratos Wealth Partners, LTD.50,300$834K0.01%new13F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.49,390$819K<0.01%+3,80013F-HRTimeline
Virtus Investment Advisers, LLCin group Virtus Investment Advisers, L…46,937$779K0.21%+2,63113F-HRTimelineGroup
Engineers Gate Manager LP44,258$734K0.01%new13F-HRTimeline
ADAR1 Capital Management, LLCin group ADAR1 Capital Management, LLC42,900$712K0.05%013F-HR/ATimelineGroup
Southeast Asset Advisors, LLC42,874$711K0.07%new13F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND41,756$693K<0.01%+30,98613F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…40,143$666K<0.01%+37,25213F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd39,400$654K0.02%-15,18713F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/37,071$616K<0.01%+5,15213F-HRTimeline
TOCQUEVILLE ASSET MANAGEMENT L.P.in group TOCQUEVILLE ASSET MANAGEMENT …34,700$576K0.01%+10,00013F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc34,249$568K<0.01%+30,16213F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\33,380$554K<0.01%+3,80813F-HRTimelineGroup
Schonfeld Strategic Advisors LLC30,944$513K<0.01%new13F-HRTimeline
COMMONWEALTH EQUITY SERVICES, LLC30,940$513K<0.01%+32413F-HRTimeline
Y-Intercept (Hong Kong) Ltd30,488$506K0.01%new13F-HRTimeline
Occidental Asset Management, LLC29,919$496K0.06%+24713F-HRTimeline
TUDOR INVESTMENT CORP ET AL28,554$474K<0.01%-5,53613F-HRTimeline
CITIGROUP INCin group CITIGROUP INC28,459$472K<0.01%+14,82413F-HRTimelineGroup
AlphaQuest LLC28,250$469K0.03%-26,34413F-HRTimeline
HRT FINANCIAL LP27,010$448K<0.01%+4,48913F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC33,425$445K<0.01%new13F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…25,845$429K<0.01%013F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC24,390$405K<0.01%+10,99613F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA22,554$374K<0.01%-139,88913F-HRTimelineGroup
ExodusPoint Capital Management, LP22,401$372K<0.01%-48,87413F-HRTimeline
Summit Financial Wealth Advisors, LLC22,143$367K0.05%013F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC22,185$367K<0.01%new13F-HRTimelineGroup
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding21,917$364K-228Timeline
Jain Global LLC21,737$361K<0.01%new13F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson21,500$357K<0.01%new13F-HRTimelineGroup
FOX RUN MANAGEMENT, L.L.C.20,487$340K0.05%new13F-HRTimeline
Kera Capital Partners, Inc.24,255$332K0.04%-5,80413F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…19,890$330K<0.01%new13F-HRTimeline
INSPIRION WEALTH ADVISORS, LLC19,814$329K0.04%-16,82013F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC19,051$316K<0.01%-2,49013F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC17,408$289K<0.01%new13F-HRTimelineGroup
Bridgefront Capital, LLC16,981$282K0.07%new13F-HRTimeline
SG Americas Securities, LLC16,497$274K<0.01%new13F-HRTimeline
Fiduciary Trust Coin group Fiduciary Trust Co16,040$266K<0.01%-7513F-HRTimelineGroup
PROFUND ADVISORS LLC15,562$258K0.01%+3,39213F-HRTimeline
Virtu Financial LLCin group Virtu Financial LLC15,540$258K0.01%new13F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD15,285$254K<0.01%new13F-HRTimeline
Baader Bank Aktiengesellschaft15,000$249K0.02%new13F-HRTimeline
Pathstone Holdings, LLCin group Pathstone Holdings, LLC14,900$247K<0.01%+4,57813F-HRTimelineGroup
Private Advisor Group, LLC14,580$242K<0.01%013F-HRTimeline
KLP KAPITALFORVALTNING AS14,000$232K<0.01%new13F-HRTimeline
Rafferty Asset Management, LLC13,855$230K<0.01%new13F-HRTimeline
Persistent Asset Partners Ltd12,916$214K0.1%new13F-HRTimeline
Scientech Research LLC12,879$214K0.13%new13F-HRTimeline
Graham Capital Management, L.P.12,867$213K0.01%new13F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …12,438$206K<0.01%-2,17413F-HRTimelineGroup
Police & Firemen's Retirement System of…11,925$198K<0.01%013F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM11,867$197K<0.01%new13F-HRTimeline
China Universal Asset Management Co., L…11,592$192K0.01%-84313F-HRTimeline
Entropy Technologies, LP11,000$182K0.01%new13F-HRTimeline
AXQ CAPITAL, LP10,540$175K0.04%-9,32213F-HRTimeline
Allworth Financial LP10,450$173K<0.01%-9,99813F-HRTimeline
9823 Capital, L.P.10,429$173K0.12%13F-HRTimeline
ProShare Advisors LLC10,377$172K<0.01%new13F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS9,790$162K<0.01%+96213F-HRTimelineGroup
FMR LLCin group FMR LLC7,181$119K<0.01%+18213F-HRTimelineGroup
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co6,818$113K<0.01%new13F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…6,644$110K<0.01%+28213F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.6,450$107K<0.01%-4,50213F-HRTimelineGroup
CANADA PENSION PLAN INVESTMENT BOARD4,600$76.3K<0.01%+50013F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…3,527$58.5K<0.01%013F-HRTimelineGroup
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP2,871$47.6K<0.01%+34813F-HRTimelineGroup
RiverPark Advisors, LLCin group RiverPark Advisors, LLC2,807$46.6K0.01%new13F-HRTimelineGroup
Kestra Advisory Services, LLCgroup of 2 filers holding2,275$37.7K-13,225Timeline
CWM, LLCin group CWM, LLC2,008$33K<0.01%+4013F-HRTimelineGroup
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK1,986$32.9K<0.01%-3613F-HRTimelineGroup
Sterling Capital Management LLC1,749$29K<0.01%-41013F-HRTimeline
SIMPLEX TRADING, LLC1,599$26.5K<0.01%-18,36113F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…1,421$23.6K<0.01%-12713F-HRTimelineGroup
GF FUND MANAGEMENT CO. LTD.1,397$23.2K<0.01%-12913F-HRTimeline
AMALGAMATED BANK1,248$21K<0.01%-10613F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,097$18.2K<0.01%-46513F-HRTimelineGroup
QUADRANT CAPITAL GROUP LLC1,073$17.8K<0.01%013F-HRTimeline
Strategic Wealth Advisors LLC1,000$16K0.01%13F-HRTimeline
C M BIDWELL & ASSOCIATES LTD853$14.2K0.01%-26913F-HRTimeline
Larson Financial Group LLC647$10.7K<0.01%013F-HRTimeline
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …604$10K<0.01%new13F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC568$9.42K<0.01%+38013F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.549$9.11K<0.01%new13F-HRTimelineGroup
Quantbot Technologies LP535$8.88K<0.01%-9,26213F-HRTimeline
MCF Advisors LLC446$7.4K<0.01%new13F-HRTimeline
Farther Finance Advisors, LLC342$5.67K<0.01%013F-HRTimeline
MassMutual Private Wealth & Trust, FSB320$5.31K<0.01%+3313F-HRTimeline
GAMMA Investing LLC303$5.03K<0.01%-5713F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\277$4.59K<0.01%-7,00013F-HRTimelineGroup
Daiwa Securities Group Inc.in group Daiwa Securities Group Inc.260$4K<0.01%013F-HRTimelineGroup
Fortitude Family Office, LLC208$3.45K<0.01%013F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.198$3.29K<0.01%-38613F-HRTimelineGroup
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…155$2.57K<0.01%new13F-HR/ATimelineGroup
Parallel Advisors, LLC100$1.66K<0.01%-8613F-HRTimeline
True Wealth Design, LLC95$1.58K<0.01%+713F-HRTimeline
SIGNATUREFD, LLC40$664<0.01%new13F-HRTimeline
Caitong International Asset Management …28$465<0.01%new13F-HR/ATimeline
Rachor Investment Advisory Services, LLC25$415<0.01%13F-HRTimeline
ELEVATION WEALTH PARTNERS, LLC20$332<0.01%013F-HRTimeline
Arax Advisory Partners6$100<0.01%-5313F-HRTimeline
Essential Partners LLC6$100<0.01%new13F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…5$83<0.01%-6613F-HRTimelineGroup
IFP Advisors, Inc1$17<0.01%new13F-HRTimeline
Covestor Ltd16$00%013F-HRTimelineValue 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