Melqart Asset Management (UK) Ltd

In its 13F for Q1 2025 (holdings as of March 31, 2025, filed May 15, 2025), Melqart Asset Management (UK) Ltd reported 45 stock positions worth $740.3 million. Its top holding was Hess (HES) at 11.5% of the portfolio, followed by United States Steel (X, 10.2%) and Ansys (ANSS, 9.5%). Compared with Q4 2024, it opened 21 new positions, sold out of 18, added to 11 and reduced 13. The biggest buy was a new position in Intra-Cellular Therapies (ITCI) and the biggest sale an exit from Hashicorp Class A (HCP).

Most Recent 13F
Q2 2026
Location
London, X0
CIK
0001712901
Portfolio Value
$740.3M (Q1 2025)
SEC Filing
0001172661-25-001947 ↗ filed May 15, 2025

Holdings Value

0$500.0M$1.0B$1.5B Q1 2024: $1.3B Q1 2024 Q2 2024: $1.1B Q2 2024 Q3 2024: $1.0B Q3 2024 Q4 2024: $743.0M Q4 2024 Q1 2025: $740.3M $740.3M Q1 2025 Q2 2025: $699.7M Q2 2025 Q3 2025: $749.5M Q3 2025 Q4 2025: $999.5M Q4 2025 Q1 2026: $1.0B Q1 2026 Q2 2026: $1.1B Q2 2026

Holdings 45 stocks · $740.3M

HES Hess Corp. 11.45% 530,710 $84.8M Add +25.4%
X United States Steel Corp. 10.18% 1,782,797 $75.3M Reduce -14.0%
ANSS Ansys Inc. 9.51% 222,308 $70.4M Reduce -9.4%
ITCI Intra-Cellular Therapies Inc. 7.14% 400,695 $52.9M New
ALE Allete Inc. 5.66% 637,825 $41.9M Add +729.6%
CYTK Cytokinetics Inc. 5.43% 999,447 $40.2M Reduce -12.1%
K Kellanova 5.35% 479,858 $39.6M Reduce -1.0%
NVDA Nvidia Corp. 4.45% 303,937 $32.9M New
ESGR Enstar Group Ltd. 3.16% 70,363 $23.4M New
JNPR Juniper Networks Inc. 2.43% 497,627 $18.0M Reduce -57.1%
DFS Discover Financial Services 2.22% 96,308 $16.4M Add +114.1%
AVGO Broadcom Inc. 2.04% 90,294 $15.1M Add +5.0%
MRVL Marvell Technology Inc. 2.02% 243,448 $15.0M Add +13.7%
EVRI Everi Holdings Inc. 1.61% 872,070 $11.9M New
PENN Penn Entertainment Inc. 1.61% 729,161 $11.9M New
BECN Beacon Roofing Supply Inc. 1.60% 96,031 $11.9M New
AMED Amedisys Inc. 1.52% 121,479 $11.3M New
SWTX Springworks Therapeutics Inc. 1.43% 240,463 $10.6M New
TSM Taiwan Semiconductor-SP ADR 1.37% 61,217 $10.2M New
RBRK Rubrik Inc. Class A 1.31% 159,498 $9.7M Reduce -41.6%
WSC Willscot Holdings Corp. 1.29% 343,558 $9.6M Add +6.4%
SNOW Snowflake Inc. 1.28% 64,659 $9.5M New
MU Micron Technology Inc. 1.16% 98,537 $8.6M Add +30.5%
CYBR Cyberark Software Ltd./Israel 1.14% 24,859 $8.4M New
SHOP Shopify Inc. Class A 1.12% 86,527 $8.3M Add +20.0%
NTNX Nutanix Inc. Class A 1.10% 116,803 $8.2M Reduce -34.4%
WDC Western Digital Corp. 1.09% 200,492 $8.1M Add +150.2%
DT Dynatrace Inc. 1.07% 168,039 $7.9M Reduce -36.5%
MNDY Monday.com Ltd. 0.90% 27,482 $6.7M Reduce -60.7%
ORCL Oracle Corp. 0.89% 47,331 $6.6M Add +33.4%
SIMO Silicon Motion Technol-ADR 0.84% 123,490 $6.2M Reduce -42.6%
NBIS Nebius Group NV 0.80% 279,765 $5.9M Add +250.6%
STX Seagate Technology Holdings 0.77% 66,899 $5.7M New
HUBS HubSpot Inc. 0.73% 9,415 $5.4M Reduce -69.3%
ROIV Roivant Sciences Ltd. 0.69% 502,584 $5.1M Reduce -32.3%
ANET Arista Networks Inc. 0.59% 56,388 $4.4M New
VERX Vertex Inc. Class A 0.56% 118,566 $4.2M New
APPF Appfolio Inc. Class A 0.41% 13,633 $3.0M New
FRO Frontline PLC 0.38% 187,467 $2.8M New
OS Onestream Inc. 0.37% 127,158 $2.7M New
MDB Mongodb Inc. 0.36% 15,224 $2.7M Reduce -62.7%
BRZE Braze Inc. Class A 0.36% 73,342 $2.6M New
LGTY Logility Supply Chain Soluti 0.27% 138,178 $2.0M New
AMPS Altus Power Inc. 0.18% 266,380 $1.3M New
ACCD Accolade Inc. 0.18% 188,328 $1.3M New

Options reported separately and not counted above: X calls ($26.6M), CPRI calls ($272K).

Portfolio Sells Q4 2024 → Q1 2025

HCP Hashicorp Inc. Class A Sold out 0.00% −5.46
SMAR Smartsheet Inc. Class A Sold out 0.00% −4.17
JNPR Juniper Networks Inc. Reduce -57.1% 2.43% −3.41
ACI Albertsons Cos Inc. Class A Sold out 0.00% −2.88
DJT Trump Media & Technology Gro Sold out 0.00% −2.52
HUBS HubSpot Inc. Reduce -69.3% 0.73% −2.15
SW Smurfit Westrock PLC Sold out 0.00% −2.02
SDRL Seadrill Limited Sold out 0.00% −2.01
CYTK Cytokinetics Inc. Reduce -12.1% 5.43% −1.77
ANSS Ansys Inc. Reduce -9.4% 9.51% −1.63
GXO Gxo Logistics Inc. Sold out 0.00% −1.57
MNDY Monday.com Ltd. Reduce -60.7% 0.90% −1.31
RBRK Rubrik Inc. Class A Reduce -41.6% 1.31% −1.09
MDB Mongodb Inc. Reduce -62.7% 0.36% −0.92
DT Dynatrace Inc. Reduce -36.5% 1.07% −0.87
FYBR Frontier Communications Pare Sold out 0.00% −0.79
HPE Hewlett Packard Enterprise Sold out 0.00% −0.73
SIMO Silicon Motion Technol-ADR Reduce -42.6% 0.84% −0.72
CFLT Confluent Inc. Class A Sold out 0.00% −0.63
CIEN Ciena Corp. Sold out 0.00% −0.57
ROIV Roivant Sciences Ltd. Reduce -32.3% 0.69% −0.50
TER Teradyne Inc. Sold out 0.00% −0.48
TENB Tenable Holdings Inc. Sold out 0.00% −0.43
VSH Vishay Intertechnology Inc. Sold out 0.00% −0.41
INTU Intuit Inc. Sold out 0.00% −0.38
AMBP Ardagh Metal Packaging SA Sold out 0.00% −0.38
NTNX Nutanix Inc. Class A Reduce -34.4% 1.10% −0.36
FRSH Freshworks Inc. Class A Sold out 0.00% −0.27
INDV Indivior Ltd. Sold out 0.00% −0.18
K Kellanova Reduce -1.0% 5.35% +0.07
X United States Steel Corp. Reduce -14.0% 10.18% +0.69

Portfolio Buys Q4 2024 → Q1 2025

ITCI Intra-Cellular Therapies Inc. New 7.14% +7.14
ALE Allete Inc. Add +729.6% 5.66% +4.99
NVDA Nvidia Corp. New 4.45% +4.45
HES Hess Corp. Add +25.4% 11.45% +3.87
ESGR Enstar Group Ltd. New 3.16% +3.16
EVRI Everi Holdings Inc. New 1.61% +1.61
PENN Penn Entertainment Inc. New 1.61% +1.61
BECN Beacon Roofing Supply Inc. New 1.60% +1.60
AMED Amedisys Inc. New 1.52% +1.52
SWTX Springworks Therapeutics Inc. New 1.43% +1.43
TSM Taiwan Semiconductor-SP ADR New 1.37% +1.37
SNOW Snowflake Inc. New 1.28% +1.28
DFS Discover Financial Services Add +114.1% 2.22% +1.17
CYBR Cyberark Software Ltd./Israel New 1.14% +1.14
STX Seagate Technology Holdings New 0.77% +0.77
ANET Arista Networks Inc. New 0.59% +0.59
VERX Vertex Inc. Class A New 0.56% +0.56
NBIS Nebius Group NV Add +250.6% 0.80% +0.50
WDC Western Digital Corp. Add +150.2% 1.09% +0.45
APPF Appfolio Inc. Class A New 0.41% +0.41
FRO Frontline PLC New 0.38% +0.38
OS Onestream Inc. New 0.37% +0.37
BRZE Braze Inc. Class A New 0.36% +0.36
MU Micron Technology Inc. Add +30.5% 1.16% +0.30
LGTY Logility Supply Chain Soluti New 0.27% +0.27
AMPS Altus Power Inc. New 0.18% +0.18
ACCD Accolade Inc. New 0.18% +0.18
ORCL Oracle Corp. Add +33.4% 0.89% +0.10
SHOP Shopify Inc. Class A Add +20.0% 1.12% +0.08
WSC Willscot Holdings Corp. Add +6.4% 1.29% −0.16
AVGO Broadcom Inc. Add +5.0% 2.04% −0.64
MRVL Marvell Technology Inc. Add +13.7% 2.02% −1.16

Options Activity Q4 2024 → Q1 2025

FYBR Frontier Communications Pare call Sold out 848,400 $29.4Mbefore exit
X United States Steel Corp. call Reduce -37.1% 629,000 $26.6M
GOOGL Alphabet Inc. Class A call Sold out 63,000 $11.9Mbefore exit
ACI Albertsons Cos Inc. Class A call Sold out 501,900 $9.9Mbefore exit
CPRI Capri Holdings Ltd. call New 13,800 $272K

Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 40$1.1BWBD, TXNM, NSC, EA, CYTK
Q1 2026 41$1.0BEA, TXNM, WBD, CYTK, GTLS
Q4 2025 44$999.5MWBD, FYBR, AVGO, GTLS, EA
Q3 2025 44$749.5MALE, CYBR, SNPS, CYTK, TXNM
Q2 2025 30$699.7MHES, ANSS, SKX, ALE, CYTK
Q1 2025 45$740.3MHES, X, ANSS, ITCI, ALE
Q4 2024 42$743.0MANSS, X, HES, CYTK, JNPR
Q3 2024 46$1.0BCPRI, ANSS, RCM, ACI, CYTK
Q2 2024 49$1.1BCYTK, CPRI, ACI, X, ANSS
Q1 2024 45$1.3BPXD, ACI, CPRI, X, CYTK