Tetragon Partners GP Ltd
Follow13F filer, CIK 1515070, GRAND CAYMAN, Cayman Islands
Tetragon Partners GP Ltd reported $438,171,201 across 31 holdings for the quarter ended 2025-03-31, in a 13F-HR filed 2025-05-15. Its ten largest share positions make up 85.07% of the portfolio.
Filed (acceptance time not in the bulk data set), ingested 13F-HR 0000902664-25-002362
- Period
- 2025-03-31
- Reported value
- $438M
- Holdings
- 31
- Top 10 weight
- 85.07%
- New
- 7
- Sold out
- 3
Largest buys vs the previous quarter
| Security | Shares change | Approx. value |
|---|---|---|
| PATHadded | +2,000,000 | $20.6M |
| INFORMATICA INCadded | +200,000 | $3.49M |
| TECXnew | +187,500 | $3.32M |
| ANNXadded | +1,250,000 | $2.41M |
| IMVTnew | +131,167 | $2.24M |
Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.
Largest sells vs the previous quarter
| Security | Shares change | Approx. value |
|---|---|---|
| BBAIexited | -900,000 | -$4M |
| HYGreduced | -27,185 | -$2.14M |
| TARSreduced | -21,530 | -$1.11M |
| AXSMreduced | -7,444 | -$868K |
Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.
Holdings, Q1 2025
Share positions as resolved from 13F-HR 0000902664-25-002362, largest first. % of portfolio is the value over $311,797,310, the sum of the share positions whose value is usable for ratios (method).
| Security | History | Shares | Value | % of portfolio | Change | Latest event | Timeline |
|---|---|---|---|---|---|---|---|
| PATHUIPATH INC | 8,950,000 | $92.2M | 29.57% | +2,000,000 | Timeline | ||
| KGEIKOLIBRI GLOBAL ENERGY INC | 7,070,568 | $59M | 18.93% | 0 | Timeline | ||
| CXMSPRINKLR INC | 2,200,000 | $18.4M | 5.89% | 0 | Timeline | ||
| INFORMATICA INCINFORMATICA INC | 800,000 | $14M | 4.48% | +200,000 | |||
| AUTLAUTOLUS THERAPEUTICS LTD | 8,600,000 | $13.3M | 4.28% | +350,000 | Timeline | ||
| LYFTLYFT INC | 1,000,000 | $11.9M | 3.81% | 0 | Timeline | ||
| TARSTARSUS PHARMACEUTICALS INC | 178,470 | $9.17M | 2.94% | -21,530 | Timeline | ||
| ANNXANNEXON INC | 2,650,000 | $5.11M | 1.64% | +1,250,000 | Timeline | ||
| HYGISHARES TR | 63,142 | $4.98M | 1.6% | -27,185 | Timeline | ||
| CLDXCELLDEX THERAPEUTICS INC NEW | 261,000 | $4.74M | 1.52% | +69,000 | Timeline | ||
| AXSMAXSOME THERAPEUTICS INC. | 33,806 | $3.94M | 1.26% | -7,444 | Timeline | ||
| TECXTECTONIC THERAPEUTIC INC | 187,500 | $3.32M | 1.06% | new | Timeline | ||
| IMVTIMMUNOVANT INC | 131,167 | $2.24M | 0.72% | new | Timeline | ||
| PHVSPHARVARIS N V | 126,995 | $1.99M | 0.64% | new | Timeline | ||
| KROSKEROS THERAPEUTICS INC | 183,000 | $1.86M | 0.6% | +80,000 | Timeline | ||
| ACADACADIA PHARMACEUTICALS INC | 107,000 | $1.78M | 0.57% | new | Timeline | ||
| RLAYRELAY THERAPEUTICS INC | 619,000 | $1.62M | 0.52% | new | Timeline | ||
| SNOWSNOWFLAKE INC | 10,000 | $1.46M | 0.47% | 0 | Timeline | ||
| CCJCAMECO CORP | 21,300 | $877K | 0.28% | new | Timeline | ||
| BVNCOMPANIA DE MINAS BUENAVENTU | 55,500 | $867K | 0.28% | +18,500 | Timeline | ||
| HBMHUDBAY MINERALS INC | 107,000 | $812K | 0.26% | +49,000 | Timeline | ||
| OTLYOATLY GROUP AB | 81,210 | $798K | 0.26% | new | Timeline | ||
| TECKTECK RESOURCES LTD | 6,368 | $232K | 0.07% | 0 | Timeline | ||
| DIANA SHIPPING INCDIANA SHIPPING INC | 301,800 | $32.9K | 0.01% | 0 | |||
| SONWQSONDER HLDGS INC WT EXP 01/31/ | 18,898 | $130 | <0.01% | 0 | Timeline |
Options
Puts and calls, as filed. The amount and value describe the underlying shares, not the option premium, so they stay out of % of portfolio (H5).
| Security | Type | Amount | Value | Change |
|---|---|---|---|---|
| HYGISHARES TR IBOXX HI YD ETF | put | 1,601,900 | $126M | +610,100 |
Principal amounts
Notes and convertibles filed as a face amount (PRN). A face amount is never added to a share count (H6).
| Security | Type | Amount | Value | Change |
|---|---|---|---|---|
| LITHIUM ARGENTINA AGLITHIUM ARGENTINA AG NOTE 1.750% 1/1 | principal | 23,309,000 | $19.3M | -2,500,000 |
| FIRST MAJESTIC SILVER CORPFIRST MAJESTIC SILVER CORP NOTE 0.375% 1/1 | principal | 16,500,000 | $15.6M | +1,000,000 |
| OATLY GROUP ABOATLY GROUP AB NOTE 9.250% 9/1 | principal | 19,135,034 | $12.4M | 0 |
| CYTOKINETICS INCCYTOKINETICS INC NOTE 3.500% 7/0 | principal | 5,000,000 | $5.79M | -1,000,000 |
| SSR Mining IncSSR Mining Inc Convertible bond | principal | 4,000,000 | $4.08M | -16,000,000 |
Sold out in Q1 2025
Positions in the previous quarter's report that this quarter's report no longer lists.
| Security | Shares before | Value before | Type |
|---|---|---|---|
| BBAIBIGBEAR AI HLDGS INC | 900,000 | $4M | shares |
| MPTMEDICAL PROPERTIES TRUST INC | 902,500 | $3.56M | call |
| CUTERA INCCUTERA INC | 5,019,000 | $519K | principal |
How Q1 2025 was built
Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).
| Filing | Role | Amendment | Filed | Accepted | Ingested |
|---|---|---|---|---|---|
| 13F-HR 0000902664-25-002362 | base | 2025-05-15 | acceptance time not in the bulk data set |