Windmill Hill Asset Management Ltd

In its 13F for Q1 2025 (holdings as of March 31, 2025, filed May 7, 2025), Windmill Hill Asset Management Ltd reported 26 stock positions worth $323.1 million. Its top holding was SS SPDR S&P 500 Foss FL ETF (SPYX) at 84.0% of the portfolio, followed by General Electric (GE, 2.0%) and Microsoft (MSFT, 1.4%). Compared with Q4 2024, it opened 2 new positions, sold out of 3, added to 5 and reduced 10. The biggest buy was SS SPDR S&P 500 Foss FL ETF (SPYX, shares +13%) and the biggest sale Alphabet Class A (GOOGL, shares −34%).

Most Recent 13F
Q2 2026
Location
WADDESDON, X0
CIK
0001831132
Portfolio Value
$323.1M (Q1 2025)
SEC Filing
0001831132-25-000003 ↗ filed May 7, 2025

Holdings Value

0$100.0M$200.0M$300.0M$400.0M$500.0M Q1 2024: $279.3M Q1 2024 Q2 2024: $238.3M Q2 2024 Q3 2024: $187.2M Q3 2024 Q4 2024: $305.6M Q4 2024 Q1 2025: $323.1M $323.1M Q1 2025 Q2 2025: $363.1M Q2 2025 Q3 2025: $381.4M Q3 2025 Q4 2025: $426.9M Q4 2025 Q1 2026: $320.7M Q1 2026 Q2 2026: $448.1M Q2 2026

Holdings 26 stocks · $323.1M
SPYX SS SPDR S&P 500 Foss FL ETF 83.99% 5,932,425 $271.4M Add +13.1%
GE General Electric filed as GE AEROSPACE 2.01% 32,389 $6.5M Reduce -2.3%
MSFT Microsoft Corp. 1.41% 12,163 $4.6M Add +21.7%
MCO Moody's Corp. 1.37% 9,491 $4.4M No change
GOOGL Alphabet Inc. Class A 1.36% 25,903 $4.4M Reduce -34.2%
V Visa Inc. Class A 1.22% 11,219 $3.9M No change
CART Maplebear Inc. 1.18% 95,570 $3.8M No change
SPGI S&P Global Inc. 1.07% 6,806 $3.5M No change
HOOD Robinhood Markets Inc. Class A 0.90% 70,216 $2.9M Add +431.1%
URA Global X Uranium ETF 0.89% 125,930 $2.9M Reduce -8.4%
CP Canadian Pacific Kansas City 0.81% 37,262 $2.6M No change
OKLO Oklo Inc. 0.69% 102,855 $2.2M Add +47.9%
RDDT Reddit Inc. Class A 0.59% 18,078 $1.9M No change
CNTA Centessa Pharmaceuticals Ltd. 0.52% 117,913 $1.7M New
VCTR Victory Capital Holding - A 0.25% 13,902 $805K No change
TECX Tectonic Therapeutic Inc. 0.22% 40,023 $709K New
XOM Exxon Mobil Corp. 0.19% 5,288 $629K Reduce -9.4%
MOS The Mosaic Co. 0.19% 23,208 $627K Reduce -3.4%
COP Conocophillips 0.19% 5,968 $627K Reduce -3.6%
VALE Vale SA-SP ADR 0.19% 61,344 $612K Reduce -6.0%
SLB SLB Ltd. filed as SCHLUMBERGER LTD 0.18% 14,229 $595K Reduce -7.1%
FCX Freeport-McMoran Inc. 0.18% 15,020 $569K Reduce -1.9%
CCJ Cameco Corp. 0.16% 12,275 $505K Reduce -13.4%
IOT Samsara Inc. Class A 0.11% 9,558 $366K Add +60.0%
LND Brasilagro-Cia Bra - SPN ADR 0.09% 70,898 $282K No change
NMRA Neumora Therapeutics Inc. 0.03% 104,373 $104K No change

Portfolio Sells Q4 2024 → Q1 2025
GOOGL Alphabet Inc. Class A Reduce -34.2% 1.36% −1.08
COIN Coinbase Global Inc. Class A Sold out 0.00% −0.37
URA Global X Uranium ETF Reduce -8.4% 0.89% −0.31
U Unity Software Inc. Sold out 0.00% −0.30
CCJ Cameco Corp. Reduce -13.4% 0.16% −0.08
CXM Sprinklr Inc. Class A Sold out 0.00% −0.07
FCX Freeport-McMoran Inc. Reduce -1.9% 0.18% −0.01
XOM Exxon Mobil Corp. Reduce -9.4% 0.19% −0.01
SLB SLB Ltd. Reduce -7.1% 0.18% −0.01
COP Conocophillips Reduce -3.6% 0.19% −0.01
VALE Vale SA-SP ADR Reduce -6.0% 0.19% 0.00
MOS The Mosaic Co. Reduce -3.4% 0.19% +0.00
GE General Electric Reduce -2.3% 2.01% +0.20

Portfolio Buys Q4 2024 → Q1 2025
SPYX SS SPDR S&P 500 Foss FL ETF Add +13.1% 83.99% +1.33
HOOD Robinhood Markets Inc. Class A Add +431.1% 0.90% +0.74
CNTA Centessa Pharmaceuticals Ltd. New 0.52% +0.52
TECX Tectonic Therapeutic Inc. New 0.22% +0.22
OKLO Oklo Inc. Add +47.9% 0.69% +0.21
MSFT Microsoft Corp. Add +21.7% 1.41% +0.03
IOT Samsara Inc. Class A Add +60.0% 0.11% +0.03

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 21$448.1MSPYX, EEMX, EFAX, GE, V
Q1 2026 23$320.7MSPYX, EEMX, EFAX, GE, V
Q4 2025 26$426.9MSPYX, EFAX, GE, V, MSFT
Q3 2025 24$381.4MSPYX, GE, V, MSFT, MCO
Q2 2025 26$363.1MSPYX, GE, HOOD, MSFT, OKLO
Q1 2025 26$323.1MSPYX, GE, MSFT, MCO, GOOGL
Q4 2024Amended 27$305.6MSPYX, GOOGL, GE, MCO, MSFT
Q3 2024 24$187.2MSPYX, GOOGL, URA, GE, MCO
Q2 2024 27$238.3MSPYX, URA, GOOGL, PLTR, GE
Q1 2024 27$279.3MSPYX, NU, URA, GOOGL, PLTR