PHATHOM PHARMACEUTICALS INC PHAT
COM · Common Stock · CUSIP 71722W107 · ISIN US71722W1071
- SectorHealth care
- IndustryPharmaceutical Preparations
- HeadquartersFlorham Park, NJ
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 41.6m as of 2022-11-07, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $11.22. Options: 3 managers hold calls ($133.0k notional), 3 hold puts ($123.8k).
Trends to Q4 2022
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 94 |
| Q4 2022 | 87 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2022 | $1.9m | $3.0k | 0.00 |
| Q4 2022 | $133.0k | $123.8k | 0.93 |
Biggest buyers
| Opaleye Management Inc. | New | +417.5k |
| Newtyn Management, LLC | Added | +168.1k |
| BlackRock Inc. | Added | +151.3k |
| Walleye Capital LLC | New | +145.9k |
| Invesco Ltd. | Added | +139.8k |
| VANGUARD GROUP INC | Added | +106.9k |
| ROTHSCHILD & CO ASSET MANAGEMENT US INC. | Added | +38.2k |
| GEODE CAPITAL MANAGEMENT, LLC | Added | +32.8k |
| NORTHERN TRUST CORP | Added | +19.3k |
| GSA CAPITAL PARTNERS LLP | New | +18.5k |
Biggest sellers
| DEERFIELD MANAGEMENT COMPANY, L.P. | Sold out | -2.4m |
| 683 Capital Management, LLC | Reduced | -313.9k |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) | Sold out | -154.1k |
| HRT FINANCIAL LP | Sold out | -52.8k |
| MILLENNIUM MANAGEMENT LLC | Sold out | -50.4k |
| Curi Wealth Management, LLC | Sold out | -45.0k |
| JPMORGAN CHASE & CO | Reduced | -42.2k |
| Candriam S.C.A. | Reduced | -28.7k |
| Penn Mutual Asset Management | Reduced | -24.1k |
| MORGAN STANLEY | Reduced | -23.2k |
Biggest calls
| CITADEL ADVISORS LLC | Reduced | $83.0k7.4k shares |
| SIMPLEX TRADING, LLC | Added | $50.0k4.5k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| CITADEL ADVISORS LLC | New | $117.8k10.5k shares |
| SIMPLEX TRADING, LLC | Added | $6.0k600 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
Frazier Life Sciences Public Fund, L.P.
13D · may seek influence
no change · filed 2025-11-04
Stated purposeItem 4 is hereby amended to remove references to "FLSPOF" and the "FLSPOF Shares" from the first paragraph. Full filing |
8.6% |
| BlackRock, Inc. 13G · institution +0.9 pts · filed 2026-07-29 | 5.5% |
Fell to 5% or below in the last year: MILLENNIUM MANAGEMENT LLC (4.2%, 2026-07-20)
Insider purchases and sales in Q4 2022
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q1 2021 | 0 | — | 0 | — | — |
| Q2 2021 | 0 | — | 0 | — | — |
| Q3 2021 | 0 | — | 0 | — | — |
| Q4 2021 | 0 | — | 1 | $586.3k | — |
| Q1 2022 | 0 | — | 0 | — | — |
| Q2 2022 | 4 | $415.1k | 0 | — | — |
| Q3 2022 | 0 | — | 0 | — | — |
| Q4 2022 | 0 | — | 2 | $35.4k | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2022-11-21 | Henderson Molly CFO and CBO | Sold | $20.7k2.2k shares |
| 2022-11-21 | Curran Terrie President and Chief Executive, director | Sold | $14.6k1.5k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q4 2022
| Manager | Shares | Change |
|---|---|---|
| Frazier Life Sciences Management, L.P. 5.86% of their portfolio | 8.4m $94.3m | Unchanged |
| Medicxi Ventures Management (Jersey) Ltd 11.71% of their portfolio | 2.5m $27.9m | Unchanged |
| Invesco Ltd. 0.01% of their portfolio | 2.2m $24.8m | Added +139.8k |
| Avidity Partners Management LP 0.50% of their portfolio | 1.9m $21.3m | Reduced -6.8k |
| Ensign Peak Advisors, Inc 0.04% of their portfolio | 1.8m $19.8m | Unchanged |
| BlackRock Inc. 0.00% of their portfolio | 1.7m $19.0m | Added +151.3k |
| Abingworth LLP 5.25% of their portfolio | 1.4m $16.1m | Unchanged |
| 683 Capital Management, LLC 1.37% of their portfolio | 1.4m $15.1m | Reduced -313.9k |
| VANGUARD GROUP INC 0.00% of their portfolio | 1.1m $12.1m | Added +106.9k |
| GW&K Investment Management, LLC 0.07% of their portfolio | 594.2k $6.7m | Added +998 |
| GILDER GAGNON HOWE & CO LLC 0.12% of their portfolio | 551.8k $6.2m | Reduced -615 |
| Newtyn Management, LLC 1.12% of their portfolio | 484.1k $5.4m | Added +168.1k |
| STATE STREET CORP 0.00% of their portfolio | 451.3k $5.1m | Added +5.9k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 435.0k $4.9m | Added +32.8k |
| StepStone Group LP 0.63% of their portfolio | 422.1k $4.7m | Unchanged |
| Opaleye Management Inc. 1.63% of their portfolio | 417.5k $4.7m | New |
| ROTHSCHILD & CO ASSET MANAGEMENT US INC. 0.04% of their portfolio | 245.7k $2.8m | Added +38.2k |
| Rhenman & Partners Asset Management AB 0.28% of their portfolio | 235.2k $2.6m | Unchanged |
| NORTHERN TRUST CORP 0.00% of their portfolio | 211.0k $2.4m | Added +19.3k |
| MPM BIOIMPACT LLC 0.57% of their portfolio | 195.9k $2.2m | Added +2.6k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 173.3k $1.9m | Added +16.6k |
| Walleye Capital LLC 0.04% of their portfolio | 145.9k $1.6m | New |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 129.1k $1.4m | Reduced -42.2k |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 107.9k $1.2m | Reduced -9.7k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 97.8k $1.1m | Added +11.1k |
| Candriam S.C.A. 0.01% of their portfolio | 83.4k $935.2k | Reduced -28.7k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 79.9k $896.9k | Added +6.4k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 74.0k $830.4k | Added +16.7k |
| MORGAN STANLEY 0.00% of their portfolio | 69.2k $776.3k | Reduced -23.2k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 65.5k $734.5k | Reduced -5.3k |
| Penn Mutual Asset Management 0.79% of their portfolio | 62.8k $704.6k | Reduced -24.1k |
| Hennion & Walsh Asset Management, Inc. 0.04% of their portfolio | 59.4k $667.0k | Added +4.7k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 58.6k $657.3k | Reduced -1.0k |
| Swiss National Bank 0.00% of their portfolio | 41.5k $465.6k | Unchanged |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 30.7k $345.0k | Added +1.8k |
| Occidental Asset Management, LLC 0.09% of their portfolio | 29.7k $332.9k | Unchanged |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 26.6k $298.1k | Added +2.7k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 25.1k $281.4k | Added +864 |
| INSPIRION WEALTH ADVISORS, LLC 0.06% of their portfolio | 23.3k $261.1k | Unchanged |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 22.5k $252.4k | Added +6.7k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 20.7k $232.1k | Reduced -10.9k |
| GSA CAPITAL PARTNERS LLP 0.03% of their portfolio | 18.5k $208.0k | New |
| Allworth Financial LP 0.00% of their portfolio | 17.2k $192.9k | Added +2.8k |
| CREDIT SUISSE AG/ 0.00% of their portfolio | 15.4k $173.3k | Added +4.6k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 14.9k $168.0k | Added +315 |
| TWO SIGMA ADVISERS, LP 0.00% of their portfolio | 14.8k $166.1k | Reduced -9.3k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 14.6k $163.8k | Reduced -83 |
| Mirae Asset Global Investments Co., Ltd. 0.00% of their portfolio | 13.3k $148.8k | New |
| MetLife Investment Management, LLC 0.00% of their portfolio | 12.3k $138.0k | Unchanged |
| Squarepoint Ops LLC 0.00% of their portfolio | 12.3k $138.0k | Reduced -22.1k |
| AMERICAN INTERNATIONAL GROUP, INC. 0.00% of their portfolio | 11.6k $130.2k | Added +671 |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.00% of their portfolio | 11.2k $126.0k | Reduced -4.9k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 10.8k $121.7k | Added +152 |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 10.0k $112.7k | New |
| STALEY CAPITAL ADVISERS INC 0.01% of their portfolio | 10.0k $112.0k | Reduced -10.0k |
| BARCLAYS PLC 0.00% of their portfolio | 8.9k $99.6k | First filing |
| Legal & General Group Plc 0.00% of their portfolio | 7.4k $83.3k | Unchanged |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 4.1k $46.0k | Added +3.9k |
| AMALGAMATED BANK 0.00% of their portfolio | 3.6k $40.0k | Unchanged |
| Quantbot Technologies LP 0.00% of their portfolio | 2.9k $32.8k | Reduced -400 |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 1.8k $19.7k | New |
| Ameritas Investment Partners, Inc. 0.00% of their portfolio | 1.6k $13.9k | Unchanged |
| Metropolitan Life Insurance Co/NY 0.00% of their portfolio | 1.4k $15.7k | Unchanged |
| CITIGROUP INC 0.00% of their portfolio | 1.1k $12.7k | Reduced -115 |
| U.S. Capital Wealth Advisors, LLC 0.00% of their portfolio | 1.0k $11.2k | New |
| HUNTINGTON NATIONAL BANK 0.00% of their portfolio | 925 $10.4k | Reduced -4 |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 850 $10.0k | Unchanged |
| UBS Group AG 0.00% of their portfolio | 795 $8.9k | Added +167 |
| FMR LLC 0.00% of their portfolio | 695 $7.8k | Reduced -520 |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 486 $5.0k | Reduced -4.0k |
| China Universal Asset Management Co., Ltd. 0.00% of their portfolio | 423 $4.7k | Added +56 |
| Cutler Group LLC / CA 0.00% of their portfolio | 400 $4.0k | Unchanged |
| Tradition Wealth Management, LLC 0.00% of their portfolio | 400 $4.0k | Unchanged |
| US BANCORP \DE\ 0.00% of their portfolio | 349 $3.9k | Reduced -60 |
| QUADRANT CAPITAL GROUP LLC 0.00% of their portfolio | 212 $2.4k | Unchanged |
| Daiwa Securities Group Inc. 0.00% of their portfolio | 167 $2.0k | Added +75 |
| MassMutual Private Wealth & Trust, FSB 0.00% of their portfolio | 160 $2.0k | Added +132 |
| Lindbrook Capital, LLC 0.00% of their portfolio | 159 $1.8k | Reduced -14 |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 150 $2.0k | Reduced -400 |
| Crewe Advisors LLC 0.00% of their portfolio | 107 $1.2k | Unchanged |
| NFSG Corp 0.00% of their portfolio | 35 $393 | Unchanged |
| WHITTIER TRUST CO 0.00% of their portfolio | 33 $369 | New |
| Parallel Advisors, LLC 0.00% of their portfolio | 29 $325 | Unchanged |
| SIGNATUREFD, LLC 0.00% of their portfolio | 24 $269 | Reduced -192 |
| NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio | 13 $0 | New |
| IFP Advisors, Inc 0.00% of their portfolio | 6 $1.0k | Reduced -56 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio | 0 $0 | Unchanged |