0000919574-26-003297.txt : 20260515 0000919574-26-003297.hdr.sgml : 20260515 20260515120544 ACCESSION NUMBER: 0000919574-26-003297 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20260331 FILED AS OF DATE: 20260515 DATE AS OF CHANGE: 20260515 EFFECTIVENESS DATE: 20260515 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Tetragon Partners GP Ltd CENTRAL INDEX KEY: 0001515070 ORGANIZATION NAME: EIN: 980646182 STATE OF INCORPORATION: E9 FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-15287 FILM NUMBER: 26984606 BUSINESS ADDRESS: ADDRESS IS A NON US LOCATION: YES STREET 1: PO BOX 309 STREET 2: UGLAND HOUSE CITY: GRAND CAYMAN PROVINCE COUNTRY: E9 ZIP: KY1-1104 BUSINESS PHONE: 212-359-7356 MAIL ADDRESS: ADDRESS IS A NON US LOCATION: YES STREET 1: PO BOX 309 STREET 2: UGLAND HOUSE CITY: GRAND CAYMAN PROVINCE COUNTRY: E9 ZIP: KY1-1104 FORMER COMPANY: FORMER CONFORMED NAME: TFG Asset Management GP Ltd DATE OF NAME CHANGE: 20220302 FORMER COMPANY: FORMER CONFORMED NAME: Polygon Management Ltd. DATE OF NAME CHANGE: 20110310 13F-HR 1 primary_doc.xml X0202 13F-HR LIVE false false false 0001515070 XXXXXXXX 03-31-2026 03-31-2026 false Tetragon Partners GP Ltd

PO BOX 309 UGLAND HOUSE GRAND CAYMAN E9 KY1-1104

13F HOLDINGS REPORT 028-15287 N Stacy Scheehle 212-359-7357 /s/ Stacy Scheehle New York NY 05-15-2026 3 40 515114933 1 0001511278 028-15282 000156040 801-74150 Tetragon Partners L.P. 2 0001511306 028-15285 000295259 Tetragon Partners UK LLP 3 0001511305 028-15284 000295265 Tetragon Partners US LP INFORMATION TABLE 2 infotable.xml AARDVARK THERAPEUTICS INC COM 002942100 1193661 316621 SH DFND 0 316621 0 ACADIA PHARMACEUTICALS INC COM 004225108 3219241 144620 SH DFND 0 144620 0 AGIOS PHARMACEUTICALS INC COM 00847X104 5576503 164839 SH DFND 0 164839 0 ALKERMES PLC SHS G01767105 5650210 159791 SH DFND 0 159791 0 AMYLYX PHARMACEUTICALS INC COM 03237H101 4418490 317877 SH DFND 0 317877 0 ANNEXON INC COM 03589W102 7160201 1292455 SH DFND 0 1292455 0 ARROWHEAD PHARMACEUTICALS IN COM 04280A100 7975315 127198 SH DFND 0 127198 0 AUTOLUS THERAPEUTICS LTD SPON ADS 05280R100 13110000 9500000 SH DFND 0 9500000 0 AXSOME THERAPEUTICS INC. COM 05464T104 3390372 20059 SH DFND 0 20059 0 AXSOME THERAPEUTICS INC. COM 05464T104 5915700 35000 SH Call DFND 0 35000 0 CELLDEX THERAPEUTICS INC NEW COM NEW 15117B202 9906664 312316 SH DFND 0 312316 0 DEFINIUM THERAPEUTICS INC COM SHS 24477V105 3779887 199994 SH DFND 0 199994 0 DYNE THERAPEUTICS INC COM 26818M108 4679933 258132 SH DFND 0 258132 0 HARMONY BIOSCIENCES HLDGS IN COM 413197104 3342713 119340 SH DFND 0 119340 0 IMMUNOVANT INC COM 45258J102 5427714 218507 SH DFND 0 218507 0 IONIS PHARMACEUTICALS INC COM 462222100 3136059 41764 SH DFND 0 41764 0 KARYOPHARM THERAPEUTICS INC COM NEW 48576U205 295121 52984 SH DFND 0 52984 0 KARYOPHARM THERAPEUTICS INC COM NEW 48576U205 278500 50000 SH Call DFND 0 50000 0 KOLIBRI GLOBAL ENERGY INC COM NEW 50043K406 22810697 4154954 SH DFND 1,2,3 0 4154954 0 KOLIBRI GLOBAL ENERGY INC COM NEW 50043K406 14710730 2679550 SH DFND 1,2 0 2679550 0 KRYSTAL BIOTECH INC COM 501147102 5080638 19668 SH DFND 0 19668 0 LYFT INC CL A COM 55087P104 13300000 1000000 SH DFND 0 1000000 0 MAPLIGHT THERAPEUTICS INC COM 56565P103 2279298 112115 SH DFND 0 112115 0 MBX BIOSCIENCES INC COM 55287L101 4342578 145480 SH DFND 0 145480 0 NEKTAR THERAPEUTICS COM NEW 640268306 7413512 103037 SH DFND 0 103037 0 PHARVARIS N V COM N69605108 6260511 221611 SH DFND 0 221611 0 PRAXIS PRECISION MEDICINES I COM NEW 74006W207 5139575 15952 SH DFND 0 15952 0 RELAY THERAPEUTICS INC COM 75943R102 1806353 181543 SH DFND 0 181543 0 SILENCE THERAPEUTICS PLC ADS 82686Q101 3320948 630161 SH DFND 0 630161 0 SNOWFLAKE INC COM SHS 833445109 1508200 10000 SH DFND 0 10000 0 SOLENO THERAPEUTICS INC COM 834203309 3419145 102125 SH DFND 0 102125 0 SPRINKLR INC CL A 85208T107 13200000 2200000 SH DFND 1,2,3 0 2200000 0 TECTONIC THERAPEUTIC INC COM 878972108 1161845 37588 SH DFND 0 37588 0 UIPATH INC CL A 90364P105 31834312 2867956 SH DFND 1,2 0 2867956 0 UIPATH INC CL A 90364P105 196554671 17707628 SH DFND 0 17707628 0 UIPATH INC CL A 90364P105 51415688 4632044 SH DFND 1,2,3 0 4632044 0 ULTRAGENYX PHARMACEUTICAL IN COM 90400D108 826959 39473 SH DFND 0 39473 0 WARNER BROS DISCOVERY INC COM SER A 934423104 15579925 567368 SH DFND 1,2,3 0 567368 0 WARNER BROS DISCOVERY INC COM SER A 934423104 9785564 356357 SH DFND 1,2 0 356357 0 WORKIVA INC COM CL A 98139A105 14907500 250000 SH DFND 1,2,3 0 250000 0