Tetragon Partners GP Ltd — 13F Holdings & Portfolio
CIK 1515070 · latest 13F-HR filed 2026-05-15
Tetragon Partners GP Ltd manages $515.1M in 13F-reported U.S. long-equity assets across 40 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are PATH (38.16%), PATH (9.98%), PATH (6.18%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 10 new positions, exited 4, added to 13, and trimmed 8.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
$515.1M
Long-equity book
40
Distinct positions
2026-03-31
Filed 2026-05-15
+10 / −4 / ↑13 / ↓8
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- KOLIBRI GLOBAL ENERGY INC$10.3M +37.7%
- NEKTAR THERAPEUTICS$4.5M +153.1%
- CELLDEX THERAPEUTICS INC NEW$3.3M +49.6%
- KRYSTAL BIOTECH INC$2.2M +74.4%
- WORKIVA INC$2.0M +15.2%
Top Trims
- LYFT INC-$6.1M -31.3%
- AUTOLUS THERAPEUTICS LTD-$5.8M -30.7%
- SPRINKLR INC-$3.9M -22.9%
- ANNEXON INC-$3.0M -29.8%
- PRAXIS PRECISION MEDICINES I-$1.6M -24.0%
New Positions
- WARNER BROS DISCOVERY INC$25.4M
- DEFINIUM THERAPEUTICS INC$3.8M
- SOLENO THERAPEUTICS INC$3.4M
- ACADIA PHARMACEUTICALS INC$3.2M
- IONIS PHARMACEUTICALS INC$3.1M
Exited Positions
- RAPT THERAPEUTICS INC$4.5M
- AMICUS THERAPEUTICS INC$3.7M
- ZEVRA THERAPEUTICS INC$1.7M
- AVADEL PHARMACEUTICALS PLC$943.1K
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | UIPATH INC | PATH | 90364P105 | $196.6M | 38.16% | 17,707,628 | SH |
| 2 | UIPATH INC | PATH | 90364P105 | $51.4M | 9.98% | 4,632,044 | SH |
| 3 | UIPATH INC | PATH | 90364P105 | $31.8M | 6.18% | 2,867,956 | SH |
| 4 | KOLIBRI GLOBAL ENERGY INC | KGEI | 50043K406 | $22.8M | 4.43% | 4,154,954 | SH |
| 5 | WARNER BROS DISCOVERY INC | WBD | 934423104 | $15.6M | 3.02% | 567,368 | SH |
| 6 | WORKIVA INC | WK | 98139A105 | $14.9M | 2.89% | 250,000 | SH |
| 7 | KOLIBRI GLOBAL ENERGY INC | KGEI | 50043K406 | $14.7M | 2.86% | 2,679,550 | SH |
| 8 | LYFT INC | LYFT | 55087P104 | $13.3M | 2.58% | 1,000,000 | SH |
| 9 | SPRINKLR INC | CXM | 85208T107 | $13.2M | 2.56% | 2,200,000 | SH |
| 10 | AUTOLUS THERAPEUTICS LTD | AUTL | 05280R100 | $13.1M | 2.55% | 9,500,000 | SH |
| 11 | CELLDEX THERAPEUTICS INC NEW | CLDX | 15117B202 | $9.9M | 1.92% | 312,316 | SH |
| 12 | WARNER BROS DISCOVERY INC | WBD | 934423104 | $9.8M | 1.90% | 356,357 | SH |
| 13 | ARROWHEAD PHARMACEUTICALS IN | ARWR | 04280A100 | $8.0M | 1.55% | 127,198 | SH |
| 14 | NEKTAR THERAPEUTICS | NKTR | 640268306 | $7.4M | 1.44% | 103,037 | SH |
| 15 | ANNEXON INC | ANNX | 03589W102 | $7.2M | 1.39% | 1,292,455 | SH |
| 16 | PHARVARIS N V | PHVS | N69605108 | $6.3M | 1.22% | 221,611 | SH |
| 17 | AXSOME THERAPEUTICS INC. Call | AXSM | 05464T104 | $5.9M | 1.15% | 35,000 | SH |
| 18 | ALKERMES PLC | ALKS | G01767105 | $5.7M | 1.10% | 159,791 | SH |
| 19 | AGIOS PHARMACEUTICALS INC | AGIO | 00847X104 | $5.6M | 1.08% | 164,839 | SH |
| 20 | IMMUNOVANT INC | IMVT | 45258J102 | $5.4M | 1.05% | 218,507 | SH |
| 21 | PRAXIS PRECISION MEDICINES I | PRAX | 74006W207 | $5.1M | 1.00% | 15,952 | SH |
| 22 | KRYSTAL BIOTECH INC | KRYS | 501147102 | $5.1M | 0.99% | 19,668 | SH |
| 23 | DYNE THERAPEUTICS INC | DYN | 26818M108 | $4.7M | 0.91% | 258,132 | SH |
| 24 | AMYLYX PHARMACEUTICALS INC | AMLX | 03237H101 | $4.4M | 0.86% | 317,877 | SH |
| 25 | MBX BIOSCIENCES INC | MBX | 55287L101 | $4.3M | 0.84% | 145,480 | SH |
| 26 | DEFINIUM THERAPEUTICS INC | DFTX | 24477V105 | $3.8M | 0.73% | 199,994 | SH |
| 27 | SOLENO THERAPEUTICS INC | SLNO | 834203309 | $3.4M | 0.66% | 102,125 | SH |
| 28 | AXSOME THERAPEUTICS INC. | AXSM | 05464T104 | $3.4M | 0.66% | 20,059 | SH |
| 29 | HARMONY BIOSCIENCES HLDGS IN | HRMY | 413197104 | $3.3M | 0.65% | 119,340 | SH |
| 30 | SILENCE THERAPEUTICS PLC | SLN | 82686Q101 | $3.3M | 0.64% | 630,161 | SH |
| 31 | ACADIA PHARMACEUTICALS INC | ACAD | 004225108 | $3.2M | 0.62% | 144,620 | SH |
| 32 | IONIS PHARMACEUTICALS INC | IONS | 462222100 | $3.1M | 0.61% | 41,764 | SH |
| 33 | MAPLIGHT THERAPEUTICS INC | MPLT | 56565P103 | $2.3M | 0.44% | 112,115 | SH |
| 34 | RELAY THERAPEUTICS INC | RLAY | 75943R102 | $1.8M | 0.35% | 181,543 | SH |
| 35 | SNOWFLAKE INC | SNOW | 833445109 | $1.5M | 0.29% | 10,000 | SH |
| 36 | AARDVARK THERAPEUTICS INC | AARD | 002942100 | $1.2M | 0.23% | 316,621 | SH |
| 37 | TECTONIC THERAPEUTIC INC | TECX | 878972108 | $1.2M | 0.23% | 37,588 | SH |
| 38 | ULTRAGENYX PHARMACEUTICAL IN | RARE | 90400D108 | $827.0K | 0.16% | 39,473 | SH |
| 39 | KARYOPHARM THERAPEUTICS INC | KPTI | 48576U205 | $295.1K | 0.06% | 52,984 | SH |
| 40 | KARYOPHARM THERAPEUTICS INC Call | KPTI | 48576U205 | $278.5K | 0.05% | 50,000 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-15 | $515.1M | 40 | 0000919574-26-003297 |
| 2025-12-31 | 2026-02-17 | $474.3M | 31 | 0000902664-26-001035 |
| 2025-09-30 | 2025-11-14 | $747.6M | 47 | 0000902664-25-005067 |