CIK: 0001515070
Total reported value
$515.1M
Reporting period: 2026-03-31 · Number of holdings: 40
Tetragon Partners GP Ltd disclosed 40 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $515.1M and a quarterly turnover rate of 24.1%.
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Tetragon Partners GP Ltd's disclosed holdings carry a Herfindahl concentration index of 0.308 — mathematically equivalent to about 3 equally-sized positions, well below its 40 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes vary widely across the portfolio (a coefficient of variation of 3.12), with a handful of outsized bets alongside many smaller positions.
Recent activity leans toward adding more aggressively to already-large existing positions than to newly initiated ones (a 3.9 percentage-point tilt) — a pattern consistent with a momentum-following approach.
Trim PATH
+44.5% -$6.2M
Add KGEI
-1.4% $10.3M
Trim LYFT
0.0% -$6.1M
Trim AUTL
0.0% -$5.8M
Trim CXM
0.0% -$3.9M
Add NKTR
+48.7% $4.5M
Showing top 34 holdings (of 40 total)
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | PATH | Uipath INC - Class A | Stock-Tech | 54.32% | -5.98% | +44.46% | |
| 2 | KGEI | Kolibri Global Energy INC | Stock-Other | 7.28% | +1.53% | -1.44% | |
| 3 | WBD | Warner Bros Discovery INC | Stock-Comm Services | 4.92% | +4.92% | NEW | |
| 4 | WK | Workiva INC | Stock-Tech | 2.89% | +0.16% | +66.67% | |
| 5 | LYFT | Lyft Inc-a | Stock-Tech | 2.58% | -1.50% | — | |
| 6 | CXM | Sprinklr Inc-a | Stock-Other | 2.56% | -1.05% | — | |
| 7 | AUTL | Autolus Therapeutics PLC | Stock-Other | 2.55% | -1.44% | — | |
| 8 | CLDX | Celldex Therapeutics INC | Stock-Other | 1.92% | +0.52% | +28.10% | |
| 9 | AXSM | Axsome Therapeutics INC | Stock-Healthcare | 1.81% | +0.77% | +104.42% | |
| 10 | ARWR | Arrowhead Pharmaceuticals In | Stock-Healthcare | 1.55% | +0.19% | +31.22% | |
| 11 | NKTR | Nektar Therapeutics | Stock-Other | 1.44% | +0.82% | +48.71% | |
| 12 | ANNX | Annexon INC | Stock-Other | 1.39% | -0.76% | -36.41% | |
| 13 | PHVS | Pharvaris N.V. | Stock-Other | 1.22% | +0.08% | +13.87% | |
| 14 | ALKS | Alkermes plc | Stock-Healthcare | 1.10% | +0.27% | +13.19% | |
| 15 | AGIO | Agios Pharmaceuticals INC | Stock-Other | 1.08% | +0.15% | +1.74% | |
| 16 | IMVT | Immunovant INC | Stock-Other | 1.05% | +0.16% | +31.48% | |
| 17 | PRAX | Praxis Precision Medicines I | Stock-Other | 1.00% | -0.43% | -30.50% | |
| 18 | KRYS | Krystal Biotech INC | Stock-Healthcare | 0.99% | +0.38% | +66.48% | |
| 19 | DYN | Dyne Therapeutics INC | Stock-Other | 0.91% | -0.11% | +4.09% | |
| 20 | AMLX | Amylyx Pharmaceuticals INC | Stock-Other | 0.86% | +0.17% | +16.51% | |
| 21 | MBX | Mbx Biosciences INC | Stock-Other | 0.84% | -0.11% | +1.50% | |
| 22 | DFTX | Definium Therapeutics INC | Stock-Other | 0.73% | +0.73% | NEW | |
| 23 | SLNOEUR | Soleno Therapeutics INC | Stock-Other | 0.66% | +0.66% | NEW | |
| 24 | HRMY | Harmony Biosciences Holdings | Stock-Other | 0.65% | — | +44.09% | |
| 25 | SLN | Silence Therapeutics Plc-adr | Stock-Other | 0.64% | +0.17% | +72.47% | |
| 26 | ACAD | Acadia Pharmaceuticals INC | Stock-Healthcare | 0.62% | +0.62% | NEW | |
| 27 | IONS | Ionis Pharmaceuticals INC | Stock-Healthcare | 0.61% | +0.61% | NEW | |
| 28 | MPLT | Maplight Therapeutics INC | Stock-Other | 0.44% | -0.17% | -31.86% | |
| 29 | RLAY | Relay Therapeutics INC | Stock-Other | 0.35% | +0.35% | NEW | |
| 30 | SNOW | Snowflake INC | Stock-Tech | 0.29% | -0.17% | — | |
| 31 | AARD | Aardvark Therapeutics INC | Stock-Other | 0.23% | +0.23% | NEW | |
| 32 | TECX | Tectonic Therapeutic INC | Stock-Other | 0.23% | +0.23% | NEW | |
| 33 | RARE | Ultragenyx Pharmaceutical In | Stock-Other | 0.16% | +0.16% | NEW | |
| 34 | KPTI | Karyopharm Therapeutics INC | Stock-Other | 0.11% | +0.11% | NEW |
Performance for Q3 2026
+14.3%
Performance Last 4 Quarters
+16.3%
Based on 85% of reported portfolio value with available pricing
| Period | Holdings | Total value | Stability | Top holdings |
|---|---|---|---|---|
| 2026-03-31 | 40 | $515.1M | 24 | |
| 2025-12-31 | 31 | $474.3M | 81 | |
| 2025-09-30 | 47 | $747.6M | 82 | |
| 2025-06-30 | 40 | $620.8M | 0 | |
| 2025-03-31 | 32 | $438.2M | 100 | |
| 2024-12-31 | 28 | $391.4M | 0 | |
| 2024-09-30 | 26 | $354.5M | 0 | |
| 2024-06-30 | 30 | $400.9M | 0 | |
| 2024-03-31 | 32 | $441.5M | 0 | |
| 2023-12-31 | 35 | $415.3M | 0 | |
| 2023-09-30 | 50 | $548.3M | 0 | |
| 2023-06-30 | 55 | $740.6M | 0 | |
| 2023-03-31 | 57 | $747.5M | 0 | |
| 2022-12-31 | 75 | $699.0M | 0 | |
| 2022-09-30 | 150 | $829.7M | 0 | |
| 2022-06-30 | 199 | $1.5B | 0 | |
| 2022-03-31 | 226 | $2.2B | 0 | |
| 2021-12-31 | 217 | $1.7B | 0 | |
| 2021-09-30 | 206 | $1.6B | 0 | |
| 2021-06-30 | 196 | $1.8B | 87 | |
| 2021-03-31 | 112 | $1.4B | 68 | |
| 2020-12-31 | 50 | $1.5B | 60 | |
| 2020-09-30 | 48 | $1.1B | 72 | |
| 2020-06-30 | 43 | $751.0M | 49 | |
| 2020-03-31 | 41 | $577.9M | 47 | |
| 2019-12-31 | 42 | $672.9M | 33 | |
| 2019-09-30 | 50 | $560.8M | 58 | |
| 2019-06-30 | 58 | $688.9M | 53 | |
| 2019-03-31 | 52 | $804.3M | 52 | |
| 2018-12-31 | 51 | $633.9M | 64 | |
| 2018-09-30 | 59 | $835.7M | 48 | |
| 2018-06-30 | 55 | $742.8M | 44 | |
| 2018-03-31 | 45 | $646.1M | 100 | |
| 2017-12-31 | 42 | $658.5M | 0 | |
| 2017-09-30 | 46 | $615.9M | 0 | |
| 2017-06-30 | 45 | $672.2M | 54 | |
| 2017-03-31 | 38 | $533.1M | 45 | |
| 2016-12-31 | 38 | $503.5M | 48 | |
| 2016-09-30 | 34 | $528.3M | 70 | |
| 2016-06-30 | 34 | $439.1M | 72 | |
| 2016-03-31 | 26 | $315.4M | 100 | |
| 2015-12-31 | 23 | $281.2M | 0 | |
| 2015-09-30 | 22 | $207.7M | 46 | |
| 2015-06-30 | 22 | $269.9M | 82 | |
| 2015-03-31 | 22 | $322.1M | 37 | |
| 2014-12-31 | 20 | $253.4M | 100 | |
| 2014-09-30 | 22 | $275.7M | 0 | |
| 2014-06-30 | 20 | $355.4M | 100 | |
| 2014-03-31 | 15 | $181.3M | 100 | |
| 2013-12-31 | 12 | $110.6M | 100 | |
| 2013-09-30 | 11 | $99.0M | 100 | |
| 2013-06-30 | 14 | $140.9M | 0 |
Tetragon Partners GP Ltd's most significant position changes for 2026-03-31: New buy: Warner Bros Discovery INC (WBD); Sold out: Rapt Therapeutics INC (RAPT); New buy: Definium Therapeutics INC (DFTX); Sold out: Amicus Therapeutics INC (AM6); New buy: Soleno Therapeutics INC (SLNOEUR).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | KGEI | Kolibri Global Energy INC | +1.5% | -1.44% | Trim |
| 2 | NKTR | Nektar Therapeutics | +0.8% | +48.71% | Add |
| 3 | AXSM | Axsome Therapeutics INC | +0.8% | +104.42% | Add |
| 4 | CLDX | Celldex Therapeutics INC | +0.5% | +28.10% | Add |
| 5 | KRYS | Krystal Biotech INC | +0.4% | +66.48% | Add |
| 6 | ALKS | Alkermes plc | +0.3% | +13.19% | Add |
| 7 | ARWR | Arrowhead Pharmaceuticals In | +0.2% | +31.22% | Add |
| 8 | AMLX | Amylyx Pharmaceuticals INC | +0.2% | +16.51% | Add |
| 9 | SLN | Silence Therapeutics Plc-adr | +0.2% | +72.47% | Add |
| 10 | WK | Workiva INC | +0.2% | +66.67% | Add |
| 11 | IMVT | Immunovant INC | +0.2% | +31.48% | Add |
| 12 | AGIO | Agios Pharmaceuticals INC | +0.2% | +1.74% | Add |
| 13 | PHVS | Pharvaris N.V. | +0.1% | +13.87% | Add |
| 14 | HRMY | Harmony Biosciences Holdings | — | +44.09% | Add |
| 15 | MBX | Mbx Biosciences INC | -0.1% | +1.50% | Add |
| 16 | DYN | Dyne Therapeutics INC | -0.1% | +4.09% | Add |
| 17 | SNOW | Snowflake INC | -0.2% | — | Unchanged |
| 18 | MPLT | Maplight Therapeutics INC | -0.2% | -31.86% | Trim |
| 19 | PRAX | Praxis Precision Medicines I | -0.4% | -30.50% | Trim |
| 20 | ANNX | Annexon INC | -0.8% | -36.41% | Trim |
| 21 | CXM | Sprinklr Inc-a | -1.1% | — | Unchanged |
| 22 | AUTL | Autolus Therapeutics PLC | -1.4% | — | Unchanged |
| 23 | LYFT | Lyft Inc-a | -1.5% | — | Unchanged |
| 24 | PATH | Uipath INC - Class A | -6% | +44.46% | Add |
| 25 | WBD | Warner Bros Discovery INC | — | NEW | New buy |
| 26 | RAPT | Rapt Therapeutics INC | — | EXIT | Sold out |
| 27 | DFTX | Definium Therapeutics INC | — | NEW | New buy |
| 28 | AM6 | Amicus Therapeutics INC | — | EXIT | Sold out |
| 29 | SLNOEUR | Soleno Therapeutics INC | — | NEW | New buy |
| 30 | ACAD | Acadia Pharmaceuticals INC | — | NEW | New buy |
| 31 | IONS | Ionis Pharmaceuticals INC | — | NEW | New buy |
| 32 | RLAY | Relay Therapeutics INC | — | NEW | New buy |
| 33 | ZVRA | Zevra Therapeutics INC | — | EXIT | Sold out |
| 34 | AARD | Aardvark Therapeutics INC | — | NEW | New buy |
| 35 | TECX | Tectonic Therapeutic INC | — | NEW | New buy |
| 36 | ✓ | Avadel Pharmaceu | — | EXIT | Sold out |
| 37 | RARE | Ultragenyx Pharmaceutical In | — | NEW | New buy |
| 38 | KPTI | Karyopharm Therapeutics INC | — | NEW | New buy |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-05-15 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-02-17 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-11-14 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-08-14 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-05-15 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-02-21 | Amendment | View on EDGAR |
| 2024-12-31 | 2025-02-14 | 13F-HR | View on EDGAR |
| 2024-09-30 | 2024-11-14 | 13F-HR | View on EDGAR |
| 2024-06-30 | 2024-08-14 | 13F-HR | View on EDGAR |
| 2024-03-31 | 2024-05-15 | 13F-HR | View on EDGAR |
| 2023-12-31 | 2024-02-14 | 13F-HR | View on EDGAR |
| 2023-09-30 | 2023-11-14 | 13F-HR | View on EDGAR |
| 2023-06-30 | 2023-08-14 | 13F-HR | View on EDGAR |
| 2023-03-31 | 2023-05-15 | 13F-HR | View on EDGAR |
| 2022-12-31 | 2023-02-14 | 13F-HR | View on EDGAR |
| 2022-09-30 | 2022-11-14 | 13F-HR | View on EDGAR |
| 2022-06-30 | 2022-08-15 | 13F-HR | View on EDGAR |
| 2022-03-31 | 2022-05-16 | 13F-HR | View on EDGAR |
| 2021-12-31 | 2022-02-14 | 13F-HR | View on EDGAR |
| 2021-09-30 | 2021-11-15 | 13F-HR | View on EDGAR |
| 2021-06-30 | 2021-08-16 | 13F-HR | View on EDGAR |
| 2021-03-31 | 2021-05-17 | 13F-HR | View on EDGAR |
| 2020-12-31 | 2021-02-12 | 13F-HR | View on EDGAR |
| 2020-09-30 | 2020-11-13 | 13F-HR | View on EDGAR |
| 2020-06-30 | 2020-08-14 | 13F-HR | View on EDGAR |
| 2020-03-31 | 2020-05-15 | 13F-HR | View on EDGAR |
| 2019-12-31 | 2020-02-12 | 13F-HR | View on EDGAR |
| 2019-09-30 | 2019-11-14 | 13F-HR | View on EDGAR |
| 2019-06-30 | 2019-08-14 | 13F-HR | View on EDGAR |
| 2019-03-31 | 2019-05-15 | 13F-HR | View on EDGAR |
| 2018-12-31 | 2019-02-14 | 13F-HR | View on EDGAR |
| 2018-09-30 | 2018-11-14 | 13F-HR | View on EDGAR |
| 2018-06-30 | 2018-08-14 | Amendment | View on EDGAR |
| 2018-06-30 | 2018-08-14 | 13F-HR | View on EDGAR |
| 2018-03-31 | 2018-05-15 | 13F-HR | View on EDGAR |
| 2017-12-31 | 2018-05-15 | Amendment | View on EDGAR |
| 2017-12-31 | 2018-02-14 | 13F-HR | View on EDGAR |
| 2017-09-30 | 2018-05-15 | Amendment | View on EDGAR |
| 2017-09-30 | 2017-11-14 | 13F-HR | View on EDGAR |
| 2017-06-30 | 2017-08-14 | 13F-HR | View on EDGAR |
| 2017-03-31 | 2017-05-15 | 13F-HR | View on EDGAR |
| 2016-12-31 | 2017-02-13 | 13F-HR | View on EDGAR |
| 2016-09-30 | 2016-11-14 | 13F-HR | View on EDGAR |
| 2016-06-30 | 2016-08-15 | 13F-HR | View on EDGAR |
| 2016-03-31 | 2016-05-13 | 13F-HR | View on EDGAR |
| 2015-12-31 | 2016-02-19 | Amendment | View on EDGAR |
| 2015-12-31 | 2016-02-12 | 13F-HR | View on EDGAR |
| 2015-09-30 | 2015-11-13 | 13F-HR | View on EDGAR |
| 2015-06-30 | 2015-08-13 | 13F-HR | View on EDGAR |
| 2015-03-31 | 2015-05-14 | 13F-HR | View on EDGAR |
| 2014-12-31 | 2015-02-13 | 13F-HR | View on EDGAR |
| 2014-09-30 | 2015-02-12 | Amendment | View on EDGAR |
| 2014-09-30 | 2014-11-13 | 13F-HR | View on EDGAR |
| 2014-06-30 | 2014-08-13 | 13F-HR | View on EDGAR |
| 2014-03-31 | 2014-05-14 | 13F-HR | View on EDGAR |
| 2013-12-31 | 2014-02-14 | 13F-HR | View on EDGAR |
| 2013-09-30 | 2013-11-14 | 13F-HR | View on EDGAR |
| 2013-06-30 | 2013-08-09 | 13F-HR | View on EDGAR |
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