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 ($55.3k this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $13.18. Options: 13 managers hold calls ($37.5m notional), 10 hold puts ($13.6m).
Trends to Q4 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 |
| Q3 2025 | 134 |
| Q4 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 |
|---|---|---|
| Q1 2024 | 62 | 69 |
| Q2 2024 | 57 | 62 |
| Q3 2024 | 67 | 42 |
| Q4 2024 | 66 | 45 |
| Q1 2025 | 66 | 56 |
| Q2 2025 | 58 | 79 |
| Q3 2025 | 80 | 85 |
| Q4 2025 | 98 | 70 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2025 | $21.1m | $8.8m | 0.42 |
| Q2 2025 | $39.6m | $37.7m | 0.95 |
| Q3 2025 | $33.1m | $14.4m | 0.43 |
| Q4 2025 | $37.5m | $13.6m | 0.36 |
Biggest buyers
| Deep Track Capital, LP | New | +4.6m |
| D. E. Shaw & Co., Inc. | New | +2.5m |
| Cormorant Asset Management, LP | Added | +2.4m |
| JANUS HENDERSON GROUP PLC | Added | +2.1m |
| Logos Global Management LP | New | +1.8m |
| JANE STREET GROUP, LLC | Added | +1.7m |
| Vivo Capital, LLC | New | +1.0m |
| MORGAN STANLEY | Added | +787.9k |
| Point72 Asset Management, L.P. | Added | +762.7k |
| MILLENNIUM MANAGEMENT LLC | Added | +713.5k |
Biggest sellers
| Avoro Capital Advisors LLC | Sold out | -2.0m |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Sold out | -1.5m |
| Schonfeld Strategic Advisors LLC | Reduced | -643.1k |
| FMR LLC | Reduced | -570.7k |
| Ikarian Capital, LLC | Sold out | -435.8k |
| MARSHALL WACE, LLP | Sold out | -321.1k |
| Verition Fund Management LLC | Sold out | -272.8k |
| BOOTHBAY FUND MANAGEMENT, LLC | Sold out | -258.8k |
| SCHRODER INVESTMENT MANAGEMENT GROUP | Sold out | -195.5k |
| Exome Asset Management LLC | Sold out | -178.1k |
Biggest calls
| CITADEL ADVISORS LLC | Added | $19.7m1.5m shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $6.4m489.1k shares |
| J. Goldman & Co LP | Added | $4.3m328.4k shares |
| SIMPLEX TRADING, LLC | Reduced | $1.5m114.0k shares |
| Centiva Capital, LP | Reduced | $1.4m105.7k shares |
| IMC-Chicago, LLC | Added | $889.6k67.5k shares |
| GROUP ONE TRADING LLC | Reduced | $785.5k59.6k shares |
| Walleye Capital LLC | Added | $719.6k54.6k shares |
| DIADEMA PARTNERS LP | Added | $622.1k47.2k shares |
| 683 Capital Management, LLC | New | $547.0k41.5k shares |
Biggest puts
| CITADEL ADVISORS LLC | Added | $5.6m421.6k shares |
| 683 Capital Management, LLC | New | $3.4m255.4k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $2.6m195.7k shares |
| J. Goldman & Co LP | New | $527.2k40.0k shares |
| IMC-Chicago, LLC | New | $487.7k37.0k shares |
| SIMPLEX TRADING, LLC | Reduced | $436.3k33.1k shares |
| GROUP ONE TRADING LLC | Reduced | $402.0k30.5k shares |
| TUDOR INVESTMENT CORP ET AL | Reduced | $155.5k11.8k shares |
| Walleye Capital LLC | New | $89.6k6.8k shares |
| Walleye Trading LLC | Reduced | $17.1k1.3k 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 Q4 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 |
|---|---|---|---|---|---|
| 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 | — | — |
| Q3 2025 | 0 | — | 1 | $1.1m | — |
| Q4 2025 | 1 | $98.8k | 2 | $4.0m | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-12-09 | Reich Kristian Chief Scientific Officer | Sold | $1.1m72.9k shares |
| 2025-12-09 | Santos da Silva Jorge Chief Executive Officer, director | Sold | $1.0m70.0k shares |
| 2025-12-08 | Reich Kristian Chief Scientific Officer | Sold | $2.0m130.0k shares |
| 2025-12-08 | Santos da Silva Jorge Chief Executive Officer, director | Sold | $2.0m130.0k shares |
| 2025-10-08 | Bodenstedt Matthias Chief Financial Officer | Bought | $98.8k10.9k 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 2025
| Manager | Shares | Change |
|---|---|---|
| BVF INC/IL 8.76% of their portfolio | 19.8m $260.3m | Unchanged |
| Deep Track Capital, LP 1.39% of their portfolio | 4.6m $60.8m | New |
| Cormorant Asset Management, LP 3.25% of their portfolio | 4.4m $57.4m | Added +2.4m |
| D. E. Shaw & Co., Inc. 0.02% of their portfolio | 2.5m $32.7m | New |
| JANUS HENDERSON GROUP PLC 0.01% of their portfolio | 2.1m $27.7m | Added +2.1m |
| Logos Global Management LP 1.54% of their portfolio | 1.8m $23.1m | New |
| JANE STREET GROUP, LLC 0.03% of their portfolio | 1.7m $22.2m | Added +1.7m |
| Balyasny Asset Management L.P. 0.04% of their portfolio | 1.6m $20.7m | Reduced -128.2k |
| MORGAN STANLEY 0.00% of their portfolio | 1.0m $13.8m | Added +787.9k |
| Vivo Capital, LLC 0.85% of their portfolio | 1.0m $13.2m | New |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 959.6k $12.6m | Added +136.6k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 837.7k $11.0m | Added +489.4k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 802.7k $10.6m | Added +713.5k |
| TWO SIGMA INVESTMENTS, LP 0.02% of their portfolio | 784.8k $10.3m | Added +330.5k |
| Point72 Asset Management, L.P. 0.02% of their portfolio | 772.5k $10.2m | Added +762.7k |
| Nuveen, LLC 0.00% of their portfolio | 637.4k $8.4m | Added +1.7k |
| HRT FINANCIAL LP 0.03% of their portfolio | 635.9k $8.4m | Added +492.6k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 549.2k $7.2m | Added +354.5k |
| Jefferies Financial Group Inc. 0.05% of their portfolio | 500.0k $6.6m | Added +475.0k |
| Voleon Capital Management LP 0.14% of their portfolio | 499.1k $6.6m | Added +458.8k |
| Jump Financial, LLC 0.07% of their portfolio | 425.6k $5.6m | New |
| Soleus Capital Management, L.P. 0.22% of their portfolio | 400.0k $5.3m | New |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 380.9k $5.0m | Added +331.6k |
| Rhenman & Partners Asset Management AB 0.45% of their portfolio | 364.0k $4.8m | Added +157.0k |
| STEMPOINT CAPITAL LP 0.79% of their portfolio | 348.4k $4.6m | New |
| Weiss Asset Management LP 0.06% of their portfolio | 333.0k $4.4m | Not comparable |
| Schonfeld Strategic Advisors LLC 0.02% of their portfolio | 322.3k $4.2m | Reduced -643.1k |
| BlackRock, Inc. 0.00% of their portfolio | 286.6k $3.8m | Added +161.2k |
| Boxer Capital Management, LLC 0.79% of their portfolio | 275.0k $3.6m | Added +25.0k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 270.7k $3.6m | Reduced -92.2k |
| VANGUARD GROUP INC 0.00% of their portfolio | 266.1k $3.5m | Added +145.9k |
| First Turn Management, LLC 0.40% of their portfolio | 262.6k $3.5m | Unchanged |
| Susquehanna Portfolio Strategies, LLC 0.05% of their portfolio | 254.0k $3.3m | New |
| UBS Group AG 0.00% of their portfolio | 239.0k $3.2m | Added +154.7k |
| ALGERT GLOBAL LLC 0.05% of their portfolio | 221.6k $2.9m | New |
| ExodusPoint Capital Management, LP 0.03% of their portfolio | 213.0k $2.8m | New |
| Granahan Investment Management, LLC 0.11% of their portfolio | 198.3k $2.6m | New |
| Eagle Health Investments LP 0.54% of their portfolio | 187.6k $2.5m | New |
| Trexquant Investment LP 0.02% of their portfolio | 184.3k $2.4m | New |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 183.6k $2.4m | Added +172.6k |
| Kalehua Capital Management LLC 2.29% of their portfolio | 175.7k $2.3m | First filing |
| FMR LLC 0.00% of their portfolio | 156.3k $2.1m | Reduced -570.7k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 134.5k $1.8m | New |
| Candriam S.C.A. 0.01% of their portfolio | 134.3k $1.8m | Added +687 |
| TWO SIGMA ADVISERS, LP 0.00% of their portfolio | 131.7k $1.7m | Added +92.4k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 131.0k $1.7m | Added +129.1k |
| RICE HALL JAMES & ASSOCIATES, LLC 0.09% of their portfolio | 127.5k $1.7m | Reduced -7.4k |
| TD Asset Management Inc 0.00% of their portfolio | 126.7k $1.7m | Added +20.1k |
| Squarepoint Ops LLC 0.00% of their portfolio | 121.6k $1.6m | Added +91.0k |
| TUDOR INVESTMENT CORP ET AL 0.01% of their portfolio | 103.5k $1.4m | New |
| J. Goldman & Co LP 0.05% of their portfolio | 101.5k $1.3m | New |
| Y-Intercept (Hong Kong) Ltd 0.03% of their portfolio | 96.0k $1.3m | New |
| GSA CAPITAL PARTNERS LLP 0.10% of their portfolio | 89.2k $1.2m | New |
| Walleye Trading LLC 0.02% of their portfolio | 87.4k $1.2m | Added +33.7k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 85.6k $1.1m | Added +20.3k |
| Brevan Howard Capital Management LP 0.02% of their portfolio | 78.6k $1.0m | New |
| Walleye Capital LLC 0.01% of their portfolio | 75.8k $998.4k | New |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 72.6k $956.4k | Added +10.2k |
| FOX RUN MANAGEMENT, L.L.C. 0.15% of their portfolio | 72.0k $948.5k | Added +60.6k |
| CONGRESS ASSET MANAGEMENT CO 0.01% of their portfolio | 71.1k $937.0k | Reduced -2.3k |
| Jain Global LLC 0.01% of their portfolio | 70.6k $930.7k | New |
| Lion Point Capital, LP 4.60% of their portfolio | 67.5k $889.6k | Unchanged |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.00% of their portfolio | 61.9k $817.0k | Added +61.7k |
| Rock Springs Capital Management LP 0.04% of their portfolio | 61.7k $813.2k | Added +33.5k |
| Swiss National Bank 0.00% of their portfolio | 61.5k $810.6k | Added +18.5k |
| ACUTA CAPITAL PARTNERS, LLC 0.53% of their portfolio | 59.3k $781.3k | New |
| ALPS ADVISORS INC 0.00% of their portfolio | 58.2k $766.7k | Added +27.4k |
| STATE STREET CORP 0.00% of their portfolio | 51.0k $671.8k | Reduced -1.9k |
| BARCLAYS PLC 0.00% of their portfolio | 50.3k $662.3k | Added +50.2k |
| Quadrature Capital Ltd 0.01% of their portfolio | 50.2k $661.9k | New |
| Woodline Partners LP 0.00% of their portfolio | 49.2k $648.0k | Reduced -11.7k |
| Cinctive Capital Management LP 0.03% of their portfolio | 37.2k $490.2k | New |
| IMC-Chicago, LLC 0.01% of their portfolio | 36.5k $480.6k | New |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 32.9k $433.4k | New |
| GROUP ONE TRADING LLC 0.01% of their portfolio | 30.5k $401.7k | Added +15.0k |
| Entropy Technologies, LP 0.02% of their portfolio | 30.3k $399.4k | New |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 29.3k $386.1k | Added +10.3k |
| SIMPLEX TRADING, LLC 0.01% of their portfolio | 29.0k $381.9k | Reduced -29.3k |
| AXIOM INVESTORS LLC /DE 0.00% of their portfolio | 26.0k $342.7k | Added +818 |
| Graham Capital Management, L.P. 0.01% of their portfolio | 24.3k $320.2k | New |
| XTX Topco Ltd 0.01% of their portfolio | 23.0k $302.8k | Reduced -9.3k |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 22.2k $293.5k | New |
| SG Americas Securities, LLC 0.00% of their portfolio | 21.9k $288.0k | Added +4.4k |
| Mariner, LLC 0.00% of their portfolio | 20.2k $265.7k | New |
| NORTHERN TRUST CORP 0.00% of their portfolio | 18.5k $243.6k | Reduced -26.5k |
| Virtus Investment Advisers, LLC 0.06% of their portfolio | 18.0k $237.1k | Added +15.4k |
| Legal & General Group Plc 0.00% of their portfolio | 16.1k $211.9k | Reduced -4.8k |
| Vident Advisory, LLC 0.00% of their portfolio | 15.4k $203.6k | New |
| Brooklyn Investment Group 0.01% of their portfolio | 14.9k $204.3k | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio | 13.6k $179.1k | Added +7.7k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 13.5k $178.4k | Added +9.0k |
| Campbell & CO Investment Adviser LLC 0.01% of their portfolio | 13.4k $177.2k | New |
| Virtu Financial LLC 0.01% of their portfolio | 12.6k $166.0k | New |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 12.4k $163.9k | Reduced -274 |
| Centiva Capital, LP 0.01% of their portfolio | 12.3k $162.0k | Added +7.8k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 11.3k $149.1k | Added +4.0k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 10.0k $131.8k | Added +4.8k |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 9.0k $118.4k | Added +8.9k |
| Persistent Asset Partners Ltd 0.05% of their portfolio | 8.5k $112.3k | New |
| T. Rowe Price Investment Management, Inc. 0.00% of their portfolio | 7.1k $94.0k | New |