JANUX THERAPEUTICS INC JANX
COM · Common Stock · CUSIP 47103J105
- SectorHealth care
- IndustryPharmaceutical Preparations
- HeadquartersSan Diego, CA
- 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 ($62.4k this quarter). Holder counts are more reliable. Shares outstanding: 52.2m as of 2024-08-05, 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 ≈ $41.88. Options: 9 managers hold calls ($4.1m notional), 7 hold puts ($4.5m).
Trends to Q2 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 49 |
| Q4 2022 | 51 |
| Q1 2023 | 49 |
| Q2 2023 | 55 |
| Q3 2023 | 59 |
| Q4 2023 | 66 |
| Q1 2024 | 122 |
| Q2 2024 | 156 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 24 | 20 |
| Q1 2023 | 31 | 20 |
| Q2 2023 | 29 | 19 |
| Q3 2023 | 33 | 22 |
| Q4 2023 | 41 | 19 |
| Q1 2024 | 87 | 35 |
| Q2 2024 | 111 | 51 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2023 | $24.2k | $4.0k | 0.17 |
| Q4 2023 | $60.1k | $9.5k | 0.16 |
| Q1 2024 | $3.8m | $6.7m | 1.77 |
| Q2 2024 | $4.1m | $4.5m | 1.08 |
Biggest buyers
| Paradigm Biocapital Advisors LP | New | +1.6m |
| EcoR1 Capital, LLC | New | +1.5m |
| Logos Global Management LP | Added | +1.4m |
| STATE STREET CORP | Added | +1.0m |
| Vestal Point Capital, LP | New | +725.0k |
| BlackRock Inc. | Added | +650.0k |
| Avidity Partners Management LP | Added | +456.0k |
| LORD, ABBETT & CO. LLC | Added | +320.5k |
| Nuveen Asset Management, LLC | Added | +318.3k |
| Cormorant Asset Management, LP | Added | +300.0k |
Biggest sellers
| BVF INC/IL | Reduced | -2.5m |
| ORBIMED ADVISORS LLC | Reduced | -1.3m |
| RTW INVESTMENTS, LP | Sold out | -1.0m |
| CITADEL ADVISORS LLC | Reduced | -793.1k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Reduced | -447.8k |
| MORGAN STANLEY | Reduced | -281.9k |
| Altitude Crest Partners Inc. | Sold out | -193.3k |
| Driehaus Capital Management LLC | Sold out | -191.1k |
| JANUS HENDERSON GROUP PLC | Reduced | -163.7k |
| SAMSARA BIOCAPITAL, LLC | Reduced | -135.2k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $2.3m55.0k shares |
| SIMPLEX TRADING, LLC | Added | $707.0k16.9k shares |
| MILLENNIUM MANAGEMENT LLC | New | $448.2k10.7k shares |
| JANE STREET GROUP, LLC | New | $284.9k6.8k shares |
| Walleye Capital LLC | New | $121.5k2.9k shares |
| GROUP ONE TRADING LLC | Added | $104.7k2.5k shares |
| CITADEL ADVISORS LLC | Reduced | $75.4k1.8k shares |
| Belvedere Trading LLC | New | $75.4k1.8k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $2.9m68.4k shares |
| CITADEL ADVISORS LLC | Reduced | $1.2m29.4k shares |
| Walleye Capital LLC | New | $113.1k2.7k shares |
| Belvedere Trading LLC | Reduced | $88.0k2.1k shares |
| SIMPLEX TRADING, LLC | Reduced | $83.0k2.0k shares |
| GROUP ONE TRADING LLC | Added | $75.4k1.8k 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 |
|---|---|
| RA CAPITAL MANAGEMENT, L.P. 13D · may seek influence filed 2025-03-10 | 19.9% |
| BlackRock, Inc. 13G · institution +1.0 pts · filed 2026-07-28 | 6.7% |
| Prosight Management, LP 13G · passive investor new · filed 2026-02-06 | 5.3% |
Fell to 5% or below in the last year: Point72 Asset Management, L.P. (3.3%, 2026-08-14), Janus Henderson Group Ltd. (0.3%, 2026-08-13), STATE STREET CORP (4.1%, 2026-05-12), FMR LLC (4.2%, 2026-05-06)
Insider purchases and sales in Q2 2024
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 |
|---|---|---|---|---|---|
| Q3 2022 | 0 | — | 0 | — | — |
| Q4 2022 | 0 | — | 0 | — | — |
| Q1 2023 | 0 | — | 0 | — | — |
| Q2 2023 | 0 | — | 0 | — | — |
| Q3 2023 | 1 | $6.2m | 0 | — | — |
| Q4 2023 | 2 | $5.0m | 0 | — | — |
| Q1 2024 | 0 | — | 0 | — | — |
| Q2 2024 | 0 | — | 2 | $82.1m | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2024-06-03 | Reardon Tighe Acting Chief Financial Officer · By Avalon BioVentures SPV I, L.P. | Sold | $37.9m691.5k shares |
| 2024-06-03 | Lichter Jay Director · By Avalon BioVentures SPV I, L.P. | Sold | $37.9m691.5k shares |
| 2024-06-03 | Avalon Ventures XI, L.P. +2 10% owner · By Avalon BioVentures SPV I, L.P. | Sold | $37.9m691.5k shares |
| 2024-06-03 | Lichter Jay Director · By Avalon Ventures XI, L.P. | Sold | $37.1m677.3k shares |
| 2024-06-03 | Avalon Ventures XI, L.P. +2 10% owner | Sold | $37.1m677.3k shares |
| 2024-06-03 | Lichter Jay Director · By Avalon BioVentures I, LP | Sold | $7.2m131.2k shares |
| 2024-06-03 | Avalon Ventures XI, L.P. +2 10% owner · By Avalon BioVentures I, LP | Sold | $7.2m131.2k shares |
| 2024-06-03 | Reardon Tighe Acting Chief Financial Officer · By Avalon BioVentures I, LP | Sold | $7.2m131.2k 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, Q2 2024
| Manager | Shares | Change |
|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. 5.08% of their portfolio | 9.2m $383.9m | Unchanged |
| FMR LLC 0.02% of their portfolio | 7.8m $325.8m | Added +28.6k |
| ORBIMED ADVISORS LLC 2.48% of their portfolio | 3.0m $124.8m | Reduced -1.3m |
| BlackRock Inc. 0.00% of their portfolio | 2.3m $98.2m | Added +650.0k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.18% of their portfolio | 2.3m $97.5m | Reduced -447.8k |
| JANUS HENDERSON GROUP PLC 0.04% of their portfolio | 1.8m $75.4m | Reduced -163.7k |
| Paradigm Biocapital Advisors LP 2.51% of their portfolio | 1.6m $65.5m | New |
| VANGUARD GROUP INC 0.00% of their portfolio | 1.6m $65.4m | Added +203.8k |
| CITADEL ADVISORS LLC 0.06% of their portfolio | 1.6m $65.2m | Reduced -793.1k |
| Logos Global Management LP 3.64% of their portfolio | 1.5m $62.8m | Added +1.4m |
| EcoR1 Capital, LLC 1.88% of their portfolio | 1.5m $61.6m | New |
| LORD, ABBETT & CO. LLC 0.10% of their portfolio | 1.4m $58.9m | Added +320.5k |
| STATE STREET CORP 0.00% of their portfolio | 1.4m $58.7m | Added +1.0m |
| Cormorant Asset Management, LP 2.56% of their portfolio | 1.1m $44.0m | Added +300.0k |
| Avidity Partners Management LP 1.50% of their portfolio | 840.2k $35.2m | Added +456.0k |
| Vestal Point Capital, LP 2.26% of their portfolio | 725.0k $30.4m | New |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 624.1k $26.1m | Added +156.6k |
| BVF INC/IL 0.52% of their portfolio | 441.5k $18.5m | Reduced -2.5m |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 396.9k $16.6m | Added +318.3k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 344.7k $14.4m | Reduced -2.5k |
| SAMLYN CAPITAL, LLC 0.23% of their portfolio | 324.7k $13.6m | Added +28.3k |
| Woodline Partners LP 0.12% of their portfolio | 300.8k $12.6m | Added +271.0k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 252.4k $10.6m | Added +232.8k |
| Schonfeld Strategic Advisors LLC 0.08% of their portfolio | 242.5k $10.2m | Added +89.8k |
| Artal Group S.A. 0.22% of their portfolio | 203.0k $8.5m | Added +153.0k |
| Alyeska Investment Group, L.P. 0.05% of their portfolio | 199.4k $8.4m | Added +6.3k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 194.4k $8.1m | Reduced -7.6k |
| Point72 Asset Management, L.P. 0.02% of their portfolio | 136.4k $5.7m | New |
| Ensign Peak Advisors, Inc 0.01% of their portfolio | 133.0k $5.6m | New |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 119.4k $5.0m | Added +95.9k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 115.0k $4.8m | Added +66.3k |
| Candriam S.C.A. 0.03% of their portfolio | 112.0k $4.7m | Added +32.0k |
| Rhenman & Partners Asset Management AB 0.43% of their portfolio | 106.8k $4.5m | Added +2.3k |
| Ratan Capital Management LP 1.36% of their portfolio | 105.8k $4.4m | Added +85.8k |
| TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio | 103.6k $4.3m | Reduced -121.1k |
| D. E. Shaw & Co., Inc. 0.01% of their portfolio | 97.8k $4.1m | Added +43.2k |
| STEMPOINT CAPITAL LP 1.15% of their portfolio | 92.9k $3.9m | Reduced -28.7k |
| MORGAN STANLEY 0.00% of their portfolio | 81.8k $3.4m | Reduced -281.9k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 77.5k $3.2m | Added +28.3k |
| Rafferty Asset Management, LLC 0.01% of their portfolio | 77.2k $3.2m | New |
| MACQUARIE GROUP LTD 0.00% of their portfolio | 76.6k $3.2m | Added +16.6k |
| TUDOR INVESTMENT CORP ET AL 0.03% of their portfolio | 67.5k $2.8m | Added +61.1k |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 60.6k $2.5m | Added +19.9k |
| Informed Momentum Co LLC 0.38% of their portfolio | 55.6k $2.3m | Reduced -355 |
| Soleus Capital Management, L.P. 0.21% of their portfolio | 55.5k $2.3m | Reduced -102.3k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.01% of their portfolio | 55.2k $2.3m | New |
| UBS Group AG 0.00% of their portfolio | 50.9k $2.1m | Added +28.7k |
| Ghost Tree Capital, LLC 0.73% of their portfolio | 50.0k $2.1m | New |
| DekaBank Deutsche Girozentrale 0.00% of their portfolio | 49.5k $1.9m | Unchanged |
| SAMSARA BIOCAPITAL, LLC 0.39% of their portfolio | 45.1k $1.9m | Reduced -135.2k |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 43.9k $1.8m | Added +12.3k |
| Swiss National Bank 0.00% of their portfolio | 40.7k $1.7m | Added +8.9k |
| Blue Owl Capital Holdings LP 0.47% of their portfolio | 40.0k $1.7m | New |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 39.6k $1.7m | Added +19.4k |
| ZACKS INVESTMENT MANAGEMENT 0.02% of their portfolio | 38.8k $1.6m | Reduced -2.1k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 38.4k $1.6m | Reduced -260 |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 38.0k $1.6m | Added +11.1k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.00% of their portfolio | 35.2k $1.5m | New |
| SG Americas Securities, LLC 0.01% of their portfolio | 34.7k $1.5m | New |
| TWINBEECH CAPITAL LP 0.03% of their portfolio | 33.5k $1.4m | New |
| Squarepoint Ops LLC 0.01% of their portfolio | 32.9k $1.4m | Reduced -10.3k |
| BIT Capital GmbH 0.12% of their portfolio | 31.2k $1.3m | Reduced -100 |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 30.7k $1.3m | Added +6.8k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 30.2k $1.3m | Added +21.5k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 29.2k $1.2m | Added +5.7k |
| BARCLAYS PLC 0.00% of their portfolio | 29.2k $1.2m | Added +13.7k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 25.6k $1.1m | Added +19.5k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 24.5k $1.0m | Added +22.9k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 24.0k $1.0m | Added +16.9k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 24.0k $1.0m | Added +8.4k |
| Skandinaviska Enskilda Banken AB (publ) 0.00% of their portfolio | 23.6k $989.3k | Unchanged |
| HighVista Strategies LLC 0.36% of their portfolio | 23.3k $977.4k | New |
| Legal & General Group Plc 0.00% of their portfolio | 21.3k $891.6k | Added +5.2k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 20.7k $868.7k | Added +4.5k |
| Ovata Capital Management Ltd 0.46% of their portfolio | 20.0k $837.8k | Reduced -20.0k |
| TD Asset Management Inc 0.00% of their portfolio | 19.8k $829.4k | New |
| OMERS ADMINISTRATION Corp 0.01% of their portfolio | 19.5k $816.9k | New |
| TWO SIGMA ADVISERS, LP 0.00% of their portfolio | 19.3k $808.5k | Reduced -63.7k |
| Jump Financial, LLC 0.02% of their portfolio | 18.1k $758.2k | Added +2.4k |
| MetLife Investment Management, LLC 0.00% of their portfolio | 16.3k $684.9k | Added +7.3k |
| CITIGROUP INC 0.00% of their portfolio | 15.6k $653.3k | Reduced -26.0k |
| Corebridge Financial, Inc. 0.00% of their portfolio | 15.1k $631.9k | First filing |
| Walleye Capital LLC 0.01% of their portfolio | 14.4k $603.2k | New |
| PROFUND ADVISORS LLC 0.02% of their portfolio | 14.3k $597.9k | New |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 12.4k $520.4k | Added +5.7k |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 12.2k $511.9k | New |
| GILDER GAGNON HOWE & CO LLC 0.01% of their portfolio | 11.6k $484.0k | Reduced -37 |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 11.5k $483.7k | Added +4.3k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 11.5k $483.5k | New |
| Parkwood LLC 0.06% of their portfolio | 11.4k $477.0k | New |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 11.0k $458.1k | First filing |
| Alpine Global Management, LLC 0.07% of their portfolio | 10.1k $424.8k | New |
| Qube Research & Technologies Ltd 0.00% of their portfolio | 10.0k $420.3k | New |
| KENNEDY CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 10.0k $418.1k | New |
| NEOS Investment Management LLC 0.02% of their portfolio | 9.7k $407.3k | New |
| HARVEST MANAGEMENT LLC 0.33% of their portfolio | 9.7k $406.3k | New |
| Invesco Ltd. 0.00% of their portfolio | 9.7k $404.4k | Added +1.8k |
| Allianz Asset Management GmbH 0.00% of their portfolio | 9.5k $398.0k | New |
| Amundi 0.00% of their portfolio | 9.4k $362.2k | New |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 9.0k $377.3k | Added +2.9k |