MOONLAKE IMMUNOTHERAPEUTICS MLTX
CLASS A ORD · Common Stock · CUSIP 61559X104
- SectorHealth care
- IndustryPharmaceutical Preparations
- 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 ($1.8m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $47.20. Options: 12 managers hold calls ($39.6m notional), 11 hold puts ($37.7m).
Trends to Q2 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 24 |
| Q4 2022 | 34 |
| Q1 2023 | 44 |
| Q2 2023 | 85 |
| Q3 2023 | 120 |
| Q4 2023 | 127 |
| Q1 2024 | 115 |
| Q2 2024 | 112 |
| Q3 2024 | 110 |
| Q4 2024 | 117 |
| Q1 2025 | 137 |
| Q2 2025 | 131 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2023 | 77 | 37 |
| Q4 2023 | 84 | 60 |
| Q1 2024 | 62 | 69 |
| Q2 2024 | 57 | 62 |
| Q3 2024 | 67 | 42 |
| Q4 2024 | 66 | 45 |
| Q1 2025 | 66 | 56 |
| Q2 2025 | 58 | 79 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2024 | $6.0m | $5.0m | 0.83 |
| Q4 2024 | $11.3m | $8.6m | 0.76 |
| Q1 2025 | $21.1m | $8.8m | 0.42 |
| Q2 2025 | $39.6m | $37.7m | 0.95 |
Biggest buyers
| Avoro Capital Advisors LLC | Added | +1.4m |
| RTW INVESTMENTS, LP | New | +741.1k |
| Siren, L.L.C. | New | +508.3k |
| Vestal Point Capital, LP | Added | +350.0k |
| Balyasny Asset Management L.P. | Added | +344.3k |
| Paradigm Biocapital Advisors LP | Added | +250.9k |
| CITADEL ADVISORS LLC | Added | +195.4k |
| Point72 Asset Management, L.P. | New | +186.6k |
| ALLIANCEBERNSTEIN L.P. | Added | +171.9k |
| Nuveen, LLC | Added | +118.2k |
Biggest sellers
| Polar Capital Holdings Plc | Reduced | -852.5k |
| FMR LLC | Reduced | -596.5k |
| VOYA INVESTMENT MANAGEMENT LLC | Reduced | -539.7k |
| Camber Capital Management LP | Sold out | -441.0k |
| Finepoint Capital LP | Sold out | -435.8k |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | -360.6k |
| FRED ALGER MANAGEMENT, LLC | Reduced | -347.3k |
| MILLENNIUM MANAGEMENT LLC | Sold out | -344.3k |
| FRANKLIN RESOURCES INC | Sold out | -191.5k |
| Holocene Advisors, LP | Sold out | -189.0k |
Biggest calls
| Caption Management, LLC | Added | $14.0m295.7k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $6.2m131.0k shares |
| SPHERA FUNDS MANAGEMENT LTD. | New | $5.9m125.0k shares |
| Ikarian Capital, LLC | Unchanged | $4.5m94.5k shares |
| JANE STREET GROUP, LLC | Reduced | $3.5m75.1k shares |
| BOOTHBAY FUND MANAGEMENT, LLC | Unchanged | $1.3m28.5k shares |
| GROUP ONE TRADING LLC | Reduced | $1.3m27.4k shares |
| CITADEL ADVISORS LLC | Added | $1.3m26.6k shares |
| SIMPLEX TRADING, LLC | Reduced | $736.0k15.6k shares |
| BARCLAYS PLC | New | $472.0k10.0k shares |
Biggest puts
| Caption Management, LLC | Added | $10.8m228.7k shares |
| Ikarian Capital, LLC | Added | $9.2m194.5k shares |
| GROUP ONE TRADING LLC | Added | $4.2m88.3k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $3.9m82.4k shares |
| BOOTHBAY FUND MANAGEMENT, LLC | Added | $3.3m70.9k shares |
| DIADEMA PARTNERS LP | New | $1.9m41.3k shares |
| Persistent Asset Partners Ltd | New | $1.5m45.5k shares |
| SIMPLEX TRADING, LLC | New | $1.1m23.5k shares |
| JANE STREET GROUP, LLC | Reduced | $911.0k19.3k shares |
| CITADEL ADVISORS LLC | Added | $892.1k18.9k 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 |
|---|---|
| BIOTECHNOLOGY VALUE FUND L P 13D · may seek influence -2.6 pts · filed 2026-06-29 | 19.7% |
| Deep Track Capital, LP 13G · passive investor +3.3 pts · filed 2026-08-14 | 9.7% |
| T. Rowe Price Investment Management, Inc. 13G · institution new · filed 2026-08-14 | 5.3% |
Fell to 5% or below in the last year: Cormorant Asset Management, LP (4.3%, 2026-08-14), Avoro Capital Advisors LLC (3.1%, 2025-11-14)
Insider purchases and sales in Q2 2025
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 2023 | 0 | — | 0 | — | — |
| Q4 2023 | 0 | — | 1 | $5.9m | $5.9m |
| Q1 2024 | 0 | — | 2 | $21.8m | $21.8m |
| Q2 2024 | 0 | — | 0 | — | — |
| Q3 2024 | 0 | — | 0 | — | — |
| Q4 2024 | 0 | — | 2 | $109.2m | — |
| Q1 2025 | 0 | — | 0 | — | — |
| Q2 2025 | 0 | — | 0 | — | — |
None reported in Q2 2025.
Holders, Q2 2025
| Manager | Shares | Change |
|---|---|---|
| BVF INC/IL 33.31% of their portfolio | 19.8m $932.3m | Unchanged |
| Cormorant Asset Management, LP 29.86% of their portfolio | 8.5m $400.9m | Unchanged |
| FMR LLC 0.02% of their portfolio | 5.7m $270.5m | Reduced -596.5k |
| Avoro Capital Advisors LLC 3.43% of their portfolio | 4.2m $195.9m | Added +1.4m |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.01% of their portfolio | 2.6m $123.3m | Reduced -360.6k |
| CITADEL ADVISORS LLC 0.07% of their portfolio | 1.7m $79.0m | Added +195.4k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 1.3m $60.2m | Reduced -17.0k |
| WESTFIELD CAPITAL MANAGEMENT CO LP 0.25% of their portfolio | 1.3m $59.4m | Reduced -175.4k |
| FEDERATED HERMES, INC. 0.11% of their portfolio | 1.2m $58.9m | Reduced -20.8k |
| ALLIANCEBERNSTEIN L.P. 0.02% of their portfolio | 1.1m $53.7m | Added +171.9k |
| Paradigm Biocapital Advisors LP 1.77% of their portfolio | 878.3k $41.5m | Added +250.9k |
| Nuveen, LLC 0.01% of their portfolio | 791.6k $37.4m | Added +118.2k |
| RTW INVESTMENTS, LP 0.50% of their portfolio | 741.1k $35.0m | New |
| Hood River Capital Management LLC 0.45% of their portfolio | 675.4k $31.9m | Added +12.5k |
| Vestal Point Capital, LP 1.37% of their portfolio | 550.0k $26.0m | Added +350.0k |
| MARSHALL WACE, LLP 0.03% of their portfolio | 529.2k $25.0m | Reduced -111.7k |
| Siren, L.L.C. 1.24% of their portfolio | 508.3k $24.0m | New |
| Balyasny Asset Management L.P. 0.05% of their portfolio | 423.2k $20.0m | Added +344.3k |
| BlackRock, Inc. 0.00% of their portfolio | 327.3k $15.5m | Added +41.1k |
| MPM BIOIMPACT LLC 2.56% of their portfolio | 313.6k $14.8m | Reduced -2.5k |
| Woodline Partners LP 0.08% of their portfolio | 310.6k $14.7m | Added +14.5k |
| FRED ALGER MANAGEMENT, LLC 0.06% of their portfolio | 295.6k $14.0m | Reduced -347.3k |
| Saturn V Capital Management LP 5.56% of their portfolio | 290.8k $13.7m | Reduced -53.1k |
| 5AM Venture Management, LLC 5.12% of their portfolio | 282.3k $13.3m | Unchanged |
| Polar Capital Holdings Plc 0.06% of their portfolio | 247.5k $11.7m | Reduced -852.5k |
| VOYA INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 246.1k $11.6m | Reduced -539.7k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 200.3k $9.5m | Reduced -1.2k |
| Integral Health Asset Management, LLC 0.88% of their portfolio | 200.0k $9.4m | Unchanged |
| Logos Global Management LP 1.26% of their portfolio | 200.0k $9.4m | Reduced -150.0k |
| Point72 Asset Management, L.P. 0.02% of their portfolio | 186.6k $8.8m | New |
| TD Asset Management Inc 0.01% of their portfolio | 186.2k $8.8m | Reduced -30.8k |
| Catalio Capital Management, LP 1.61% of their portfolio | 162.6k $7.7m | Added +48.0k |
| Octagon Capital Advisors LP 1.53% of their portfolio | 148.0k $7.0m | Reduced -148.0k |
| Pictet Asset Management Holding SA 0.01% of their portfolio | 147.7k $7.0m | Reduced -174.4k |
| Candriam S.C.A. 0.04% of their portfolio | 144.8k $6.8m | Reduced -29.7k |
| RICE HALL JAMES & ASSOCIATES, LLC 0.36% of their portfolio | 142.3k $6.7m | Added +4.8k |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 138.4k $6.5m | Reduced -119.8k |
| VANGUARD GROUP INC 0.00% of their portfolio | 120.9k $5.7m | Added +6.9k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 110.0k $5.2m | Reduced -14.9k |
| Hudson Bay Capital Management LP 0.03% of their portfolio | 105.0k $5.0m | Added +25.0k |
| AXA S.A. 0.01% of their portfolio | 83.8k $4.0m | Reduced -20.2k |
| SILVERARC CAPITAL MANAGEMENT, LLC 0.79% of their portfolio | 82.0k $3.9m | New |
| Granahan Investment Management, LLC 0.15% of their portfolio | 80.4k $3.8m | Reduced -61.9k |
| UBS Group AG 0.00% of their portfolio | 80.3k $3.8m | Reduced -40.4k |
| CONGRESS ASSET MANAGEMENT CO 0.02% of their portfolio | 72.9k $3.4m | Added +121 |
| STATE STREET CORP 0.00% of their portfolio | 64.6k $3.0m | Reduced -28.8k |
| JENNISON ASSOCIATES LLC 0.00% of their portfolio | 62.3k $2.9m | New |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 59.6k $2.8m | Added +559 |
| Moody Aldrich Partners LLC 0.50% of their portfolio | 54.4k $2.6m | Reduced -829 |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 52.7k $2.5m | Reduced -775 |
| HARBOR CAPITAL ADVISORS, INC. 0.10% of their portfolio | 51.4k $2.4m | Reduced -50.6k |
| Rhenman & Partners Asset Management AB 0.27% of their portfolio | 45.0k $2.1m | Unchanged |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 43.7k $2.1m | Added +28.2k |
| MORGAN STANLEY 0.00% of their portfolio | 43.2k $2.0m | Reduced -11.1k |
| Swiss National Bank 0.00% of their portfolio | 42.3k $2.0m | Reduced -700 |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 39.4k $1.9m | Added +38.6k |
| Avidity Partners Management LP 0.37% of their portfolio | 39.0k $1.8m | New |
| Cubist Systematic Strategies, LLC 0.02% of their portfolio | 38.2k $1.8m | Added +13.4k |
| ADAR1 Capital Management, LLC 0.26% of their portfolio | 34.3k $1.6m | Added +28.9k |
| ALPS ADVISORS INC 0.01% of their portfolio | 34.3k $1.6m | Reduced -12.8k |
| TUDOR INVESTMENT CORP ET AL 0.01% of their portfolio | 31.7k $1.5m | Added +122 |
| SEI INVESTMENTS CO 0.00% of their portfolio | 29.7k $1.4m | Added +2.3k |
| Clearbridge Investments, LLC 0.00% of their portfolio | 28.4k $1.3m | Reduced -4.2k |
| ExodusPoint Capital Management, LP 0.01% of their portfolio | 25.3k $1.2m | New |
| Verition Fund Management LLC 0.01% of their portfolio | 23.5k $1.1m | Reduced -790 |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 21.4k $1.0m | Reduced -10.8k |
| HighVista Strategies LLC 0.36% of their portfolio | 21.0k $989.0k | Reduced -22.6k |
| Legal & General Group Plc 0.00% of their portfolio | 20.9k $986.7k | Added +1.4k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.00% of their portfolio | 19.4k $915.2k | New |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 19.2k $904.5k | Reduced -24.6k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 19.0k $895.5k | Unchanged |
| SUPERSTRING CAPITAL MANAGEMENT LP 1.04% of their portfolio | 17.6k $831.8k | Reduced -14.5k |
| Squarepoint Ops LLC 0.00% of their portfolio | 17.6k $829.4k | Added +629 |
| Aquatic Capital Management LLC 0.02% of their portfolio | 17.3k $817.8k | Added +17.2k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 15.8k $743.5k | Added +1.8k |
| SECTORAL ASSET MANAGEMENT INC 0.47% of their portfolio | 15.1k $713.1k | Unchanged |
| Erste Asset Management GmbH 0.01% of their portfolio | 15.0k $712.8k | Unchanged |
| NORTHERN TRUST CORP 0.00% of their portfolio | 14.3k $675.6k | Reduced -17 |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 12.9k $611.2k | Added +91 |
| Universal- Beteiligungs- und Servicegesellschaft mbH 0.00% of their portfolio | 12.8k $603.7k | Reduced -2.0k |
| WINTON GROUP Ltd 0.03% of their portfolio | 12.6k $593.1k | New |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 11.9k $564.0k | Reduced -2.3k |
| JANUS HENDERSON GROUP PLC 0.00% of their portfolio | 11.1k $524.0k | Unchanged |
| Handelsbanken Fonder AB 0.00% of their portfolio | 10.6k $500.0k | Reduced -500 |
| DNB Asset Management AS 0.00% of their portfolio | 9.6k $452.4k | Reduced -726 |
| Ensign Peak Advisors, Inc 0.00% of their portfolio | 9.1k $431.4k | Unchanged |
| Birchview Capital, LP 0.37% of their portfolio | 8.0k $377.6k | Unchanged |
| Zimmer Partners, LP 0.01% of their portfolio | 7.0k $328.5k | Reduced -17.5k |
| Glenmede Investment Management, LP 0.00% of their portfolio | 6.6k $313.2k | First filing |
| ARIZONA STATE RETIREMENT SYSTEM 0.00% of their portfolio | 6.4k $303.4k | Added +96 |
| LPL Financial LLC 0.00% of their portfolio | 6.3k $299.2k | Reduced -2.5k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 6.1k $289.7k | Reduced -190 |
| TEACHER RETIREMENT SYSTEM OF TEXAS 0.00% of their portfolio | 6.0k $281.8k | Added +31 |
| Caption Management, LLC 0.03% of their portfolio | 6.0k $281.7k | New |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 5.5k $257.7k | Unchanged |
| Jefferies Financial Group Inc. 0.00% of their portfolio | 5.2k $244.9k | Reduced -4.8k |
| BARCLAYS PLC 0.00% of their portfolio | 4.6k $214.9k | Reduced -15.0k |
| KLP KAPITALFORVALTNING AS 0.00% of their portfolio | 4.5k $212.4k | Unchanged |
| PNC Financial Services Group, Inc. 0.00% of their portfolio | 4.3k $204.8k | Reduced -4.9k |
| Advisors Asset Management, Inc. 0.00% of their portfolio | 4.0k $189.2k | Unchanged |