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Latest Polygon Management Ltd. Stock Portfolio

$515Million– No. of Holdings #34

Polygon Management Ltd. Performance:
2026 Q1: -18.57%YTD: -18.57%2025: 19.65%
Performance for 2026 Q1 is -18.57%, and YTD is -18.57%, and 2025 is 19.65%.

About Polygon Management Ltd. and 13F Hedge Fund Stock Holdings

On 2026-05-15, the fund reported it's updated stock portfolio. In the 13F Holdings report, Tetragon Partners GP Ltd reported an equity portfolio of $515.1 Millions as of 31 Mar, 2026.

The top stock holdings of Tetragon Partners GP Ltd are PATH, KGEIF, WBD. The fund has invested 54.3% of it's portfolio in UIPATH INC and 7.3% of portfolio in KOLIBRI GLOBAL ENERGY INC.

The fund managers got completely rid off RAPT THERAPEUTICS INC (RAPT), AMICUS THERAPEUTICS INC (FOLD) and ZEVRA THERAPEUTICS INC stocks. They significantly reduced their stock positions in ANNEXON INC (ANNX), MAPLIGHT THERAPEUTICS INC and PRAXIS PRECISION MEDICINES I (PRAX). Tetragon Partners GP Ltd opened new stock positions in WARNER BROS DISCOVERY INC (WBD), DEFINIUM THERAPEUTICS INC and SOLENO THERAPEUTICS INC (SLNO). The fund showed a lot of confidence in some stocks as they added substantially to SILENCE THERAPEUTICS PLC (SLN), WORKIVA INC (WK) and KRYSTAL BIOTECH INC (KRYS).
Polygon Management Ltd. Equity Portfolio Value
Last Reported on: 15 May, 2026

Polygon Management Ltd. Annual Return Estimates Vs S&P 500

Our best estimate is that Tetragon Partners GP Ltd made a return of -18.57% in the last quarter. In trailing 12 months, it's portfolio return was 4.99%.
  • Performance
  • S&P 500

New Buys

Ticker$ Bought
warner bros discovery inc25,365,500
definium therapeutics inc3,779,890
soleno therapeutics inc3,419,140
acadia pharmaceuticals inc3,219,240
ionis pharmaceuticals inc3,136,060
relay therapeutics inc1,806,350
aardvark therapeutics inc1,193,660
tectonic therapeutic inc1,161,840
New stocks bought by Polygon Management Ltd.

Additions

Ticker% Inc.
silence therapeutics plc72.47
workiva inc66.67
krystal biotech inc66.48
nektar therapeutics48.71
uipath inc44.46
harmony biosciences hldgs in44.09
immunovant inc31.48
arrowhead pharmaceuticals in31.22
Additions to existing portfolio by Polygon Management Ltd.

Reductions

Ticker% Reduced
annexon inc-36.41
maplight therapeutics inc-31.86
praxis precision medicines i-30.5
axsome therapeutics inc.-25.53
kolibri global energy inc-1.44
Polygon Management Ltd. reduced stake in above stock

Sold off

Ticker$ Sold
amicus therapeutics inc-3,713,380
zevra therapeutics inc-1,724,960
rapt therapeutics inc-4,463,050
avadel pharmaceuticals plc-943,093
Polygon Management Ltd. got rid off the above stocks

Sector Distribution

Tetragon Partners GP Ltd has about 63.4% of it's holdings in Technology sector.

  • Technology
  • Healthcare
  • Others
  • Communication Services
Sector%
Technology63.4
Healthcare17.3
Others14.3
Communication Services5

Market Cap. Distribution

Tetragon Partners GP Ltd has about 6% of it's portfolio invested in the large-cap and mega-cap stocks.

  • MID-CAP
  • UNALLOCATED
  • SMALL-CAP
  • LARGE-CAP
Category%
MID-CAP69.8
UNALLOCATED14.3
SMALL-CAP9.9
LARGE-CAP6

Stocks belong to which Index?

About 23.9% of the stocks held by Tetragon Partners GP Ltd either belong to S&P 500 or RUSSELL 2000 index.

  • Others
  • RUSSELL 2000
  • S&P 500
Index%
Others76.1
RUSSELL 200018.9
S&P 5005
Top 5 Winners (%)%
NKTR
nektar therapeutics
52.6 %
KGEIF
kolibri global energy inc
39.4 %
ALKS
alkermes plc
24.5 %
AGIO
agios pharmaceuticals inc
24.0 %
CLDX
celldex therapeutics inc new
14.7 %
Top 5 Winners ($)$
KGEIF
kolibri global energy inc
10.7 M
NKTR
nektar therapeutics
2.6 M
CLDX
celldex therapeutics inc new
1.3 M
ALKS
alkermes plc
1.1 M
AGIO
agios pharmaceuticals inc
1.1 M
Top 5 Losers (%)%
LYFT
lyft inc
-31.3 %
SNOW
snowflake inc
-31.3 %
AUTL
autolus therapeutics ltd
-30.6 %
PATH
uipath inc
-28.7 %
WK
workiva inc
-26.3 %
Top 5 Losers ($)$
PATH
uipath inc
-112.8 M
LYFT
lyft inc
-6.1 M
AUTL
autolus therapeutics ltd
-5.8 M
WK
workiva inc
-5.3 M
CXM
sprinklr inc
-3.9 M

Polygon Management Ltd. Holdings Map

This heatmap illustrates the top 50 positions within the fund's portfolio.

Current Stock Holdings of Polygon Management Ltd.

Tetragon Partners GP Ltd has 34 stocks in it's portfolio. About 82% of the portfolio is in top 10 stocks. PATH proved to be the most loss making stock for the portfolio. KGEIF was the most profitable stock for Tetragon Partners GP Ltd last quarter.

Last Reported on: 15 May, 2026
TickerNamesorted ascending% PortfolioShares Held$ ValueType% ChangeOptions