Public ownership evidence

Phathom Pharmaceuticals, Inc. Common Stock (PHAT) Ownership Disclosures

Read PHAT insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-10-10T12:08:28.848Z

Recent Form 4 activity

No records are available for this view.

90-day public availability window, up to 50 records.

Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2551,787$561,889None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25561,889$51,787,000None
Ensign Peak Advisors, Inc2026-03-312026-08-191,627,806$18,084,925None
Ensign Peak Advisors, Inc2025-12-312026-08-192,352,020$39,020,012None
Ensign Peak Advisors, Inc2025-09-302026-08-192,503,344$29,464,359None
Fulcrum Asset Management LLP2026-06-302026-08-194,458$48,458None
Stonepine Capital Management, LLC2026-06-302026-08-1885,010$922,358None
SummitTX Capital, L.P.2026-06-302026-08-15789,550$8,566,618None
Aster Capital Management (DIFC) Ltd2026-06-302026-08-15508$5,512None
Rafferty Asset Management, LLC2026-06-302026-08-1512,756$138,403None
Kera Capital Partners, Inc.2026-06-302026-08-155,000$54,250Call
Kera Capital Partners, Inc.2026-06-302026-08-1526,826$291,062None
Quarry LP2026-06-302026-08-15127$1,378None
ADAR1 Capital Management, LLC2026-06-302026-08-1542,900$465,465None
DIADEMA PARTNERS LP2026-06-302026-08-15129,950$1,409,958None
Frazier Life Sciences Management, L.P.2026-06-302026-08-1512,466,489$135,261,406None
XTX Topco Ltd2026-06-302026-08-15135,832$1,473,777None
Avidity Partners Management LP2026-06-302026-08-15200,000$2,170,000None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15419,094$4,547,170None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15419,094$4,547,170None
Caption Management, LLC2026-06-302026-08-1524,000$260,400Put
Caption Management, LLC2026-06-302026-08-1524,000$260,400Call
OSAIC HOLDINGS, INC.2026-06-302026-08-15200$2,170None
OSAIC HOLDINGS, INC.2026-06-302026-08-152,081$22,579None
Squarepoint Ops LLC2026-06-302026-08-1531,595$342,806None
Man Group plc2026-06-302026-08-1548,679$528,167None
Trexquant Investment LP2026-06-302026-08-15173,884$1,886,641None
MetLife Investment Management, LLC2026-06-302026-08-1528,107$304,961None
Engineers Gate Manager LP2026-06-302026-08-15118,257$1,283,088None
Birchview Capital, LP2026-06-302026-08-1555,000$596,750None
JANE STREET GROUP, LLC2026-06-302026-08-15111,622$1,211,099None
JANE STREET GROUP, LLC2026-06-302026-08-15101,084$1,096,761None
JANE STREET GROUP, LLC2026-06-302026-08-1577,200$837,620Call
Legal & General Group Plc2026-06-302026-08-1516,664$180,804None
Legal & General Group Plc2026-06-302026-08-1511,300$122,605None
Legal & General Group Plc2026-06-302026-08-154,774$51,798None
Ensign Peak Advisors, Inc2026-06-302026-08-151,051,913$11,413,256None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-15210,300$2,281,755Call
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1520,300$220,255Put
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1517,725$192,316None
Stonepine Capital Management, LLC2026-06-302026-08-1585,010$922,358None
Opaleye Management Inc.2026-06-302026-08-15185,589$2,013,641None
683 Capital Management, LLC2026-06-302026-08-151,850,000$20,072,501None
MILLENNIUM MANAGEMENT LLC2026-06-302026-08-153,375,834$36,627,799None
LAZARD ASSET MANAGEMENT LLC2026-06-302026-08-1514,671$159,180None
JONES FINANCIAL COMPANIES LLLP2026-06-302026-08-154,250$45,560None
AMERIPRISE FINANCIAL INC2026-06-302026-08-1529$315None
AMERIPRISE FINANCIAL INC2026-06-302026-08-15293,950$3,189,358None
Woodline Partners LP2026-06-302026-08-15369,052$4,004,214None
GILDER GAGNON HOWE & CO LLC2026-06-302026-08-1588,134$956,254None

90-day public filing window, up to 50 source positions.

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗Ensign Peak Advisors, Inc ↗Ensign Peak Advisors, Inc ↗Ensign Peak Advisors, Inc ↗Fulcrum Asset Management LLP ↗Stonepine Capital Management, LLC ↗SummitTX Capital, L.P. ↗Aster Capital Management (DIFC) Ltd ↗Rafferty Asset Management, LLC ↗

Recent Congressional disclosures

No records are available for this view.

Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.