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MMCAP International Inc. SPC — 13F Holdings & Portfolio

CIK 1304857 · latest 13F-HR filed 2026-08-14

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MMCAP International Inc. SPC manages $1.18B in 13F-reported U.S. long-equity assets across 304 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are ARIS (8.63%), ASTL (3.76%), CXII (2.44%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 124 new positions, exited 65, added to 64, and trimmed 60.

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.

Filer Information
Address
C/O MOURANT GOV SVCS (CAYMAN) LTD
94 SOLARIS AVE., CAMANA BAY, PO BOX 1348
GRAND CAYMAN KY1-1108
Phone
(416) 408-0997
Filing Manager
MMCAP International Inc. SPC
GRAND CAYMAN, E9
Signatory
Ulla Vestergaard
Director, MMCAP International Inc. SPC
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AUM

$1.18B

Long-equity book

Holdings

304

Distinct positions

Period

2026-06-30

Filed 2026-08-14

Q/Q Activity

+124 / −65 / ↑64 / ↓60

vs 2026-03-31

Firm Profile & Key People
Name Title / Status Ownership Type

Top Adds (vs prior quarter)

  • NewHold Investment Corp III$5.5M +267.6%
  • Cleancore Solutions Inc$5.4M +90.3%
  • Quantum X Labs Inc$1.8M +804.2%
  • General Motors Co$1.6M +16.3%
  • Mosaic Co/The$1.2M +28.9%
Show all 64 →

Top Trims

  • Aris Mining Corp-$43.4M -29.9%
  • Steel Dynamics Inc-$12.4M -93.2%
  • Weyerhaeuser Co-$8.8M -87.5%
  • Algoma Steel Group Inc-$8.7M -16.4%
  • Encore Energy Corp-$5.1M -67.4%
Show all 60 →

New Positions

  • Churchill Capital Corp XII$28.8M
  • Cartesian Growth Corp IV$23.5M
  • Inflection Point Acquisition C$20.0M
  • TransAlta Corp$18.1M
  • FutureCorp Space Acquisition 1$17.7M
Show all 124 →

Exited Positions

  • XANADU QUANTUM TECHNOLO-CL B$48.1M
  • Churchill Capital Corp XI$27.7M
  • MOZAYYX Acquisition Corp$17.4M
  • Idea Acquisition Corp$17.3M
  • Inflection Point Acquisition C$15.2M
Show all 65 →
All Holdings

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 Aris Mining Corp ARIS 04040Y109 $101.8M 8.63% 6,830,759 SH
2 Algoma Steel Group Inc ASTL 015658107 $44.4M 3.76% 10,954,738 SH
3 Churchill Capital Corp XII CXII G2131M102 $28.8M 2.44% 2,700,000 SH
4 Drugs Made In America Acquisit DMII G2851K104 $27.2M 2.30% 2,700,000 SH
5 NexGen Energy SEG NXE 65340P106 $25.3M 2.14% 2,694,345 SH
6 Cartesian Growth Corp IV CGCFU G19316127 $23.5M 1.99% 2,350,000 SH
7 New Providence Acquisition Cor NPAC G6476A102 $22.8M 1.94% 2,200,000 SH
8 Inflection Point Acquisition C IPFX G4790S107 $20.0M 1.69% 1,931,762 SH
9 Fifth Era Acquisition Corp I FERA G3415K101 $19.8M 1.68% 1,900,000 SH
10 TransAlta Corp TAC 89346D107 $18.1M 1.54% 1,310,100 SH
11 FutureCorp Space Acquisition 1 FTRA.U G37307124 $17.7M 1.50% 1,750,000 SH
12 MOZAYYX Acquisition Corp MZYX G63113107 $17.4M 1.48% 1,750,000 SH
13 Idea Acquisition Corp IACO G4727U100 $17.3M 1.47% 1,750,000 SH
14 InterPrivate Investment Partne IPVVU G49097127 $16.9M 1.43% 1,700,000 SH
15 Churchill Capital Corp XI CCXI G2131A108 $16.6M 1.41% 950,474 SH
16 Cardiol Therapeutics Inc CRDL 14161Y200 $16.5M 1.40% 15,598,560 SH
17 Republic Digital Acquisition C RDAG G7515A103 $16.2M 1.37% 1,565,000 SH
18 Launch One Acquisition Corp LPAA G5S86M100 $16.0M 1.36% 1,480,000 SH
19 Cantor Equity Partners IV Inc CEPF G1828E100 $15.6M 1.32% 1,500,000 SH
20 Iron Horse Acquisition II Corp IRHO 46283H103 $15.0M 1.28% 1,500,000 SH
21 Meshflow Acquisition Corp MESH G6032N101 $15.0M 1.27% 1,500,000 SH
22 Wilco 63 Corp WLCOU G9640P120 $14.9M 1.27% 1,500,000 SH
23 QDRO Acquisition Corp QADR G7310E102 $14.9M 1.26% 1,500,000 SH
24 Aptiv PLC APTV G3265R107 $14.8M 1.25% 240,889 SH
25 Inflection Point Acquisition C IPCX G47875102 $14.5M 1.23% 1,400,000 SH
26 HCM IV Acquisition Corp HACQ G4365S102 $14.0M 1.19% 1,400,000 SH
27 GP-Act III Acquisition Corp GPAT G4035N103 $13.9M 1.17% 1,275,000 SH
28 Cantor Equity Partners VII Inc CAES G1828W100 $13.6M 1.15% 1,350,000 SH
29 Cantor Equity Partners V Inc CEPV G1828S109 $12.4M 1.05% 1,200,000 SH
30 Wen Acquisition Corp WENN G9R39C103 $12.3M 1.05% 1,200,000 SH
31 Aldabra 4 Liquidity Opportunit ALOV G01900102 $11.9M 1.01% 1,200,000 SH
32 General Motors Co GM 37045V100 $11.6M 0.98% 150,635 SH
33 Cleancore Solutions Inc ZONE 184492106 $11.4M 0.97% 13,950,444 SH
34 M3-Brigade Acquisition VI Corp MBVI G63221108 $11.1M 0.94% 1,100,000 SH
35 MercadoLibre Inc MELI 58733R102 $10.7M 0.91% 6,298 SH
36 Silverbox Corp IV SBXD G81354105 $10.6M 0.90% 980,000 SH
37 Lionheart Holdings CUB G5501C109 $10.6M 0.89% 980,000 SH
38 United Acquisition Corp I UAC G92ALM108 $10.4M 0.88% 1,050,000 SH
39 FutureCrest Acquisition Corp FCRS G3730U107 $10.3M 0.87% 1,000,000 SH
40 HCM III Acquisition Corp HCMA G4365E103 $10.3M 0.87% 1,000,000 SH
41 Sea Ltd SE 81141R100 $10.2M 0.87% 106,638 SH
42 STMicroelectronics NV STM 861012102 $10.2M 0.86% 135,542 SH
43 Gores Holdings XI Inc GHXIU G40008123 $10.2M 0.86% 1,000,000 SH
44 Trailblazer Acquisition Corp BLZR G9009S103 $10.1M 0.86% 1,000,000 SH
45 American Drive Acquisition Co ADAC G0R91M105 $10.0M 0.85% 1,000,000 SH
46 Launchpad Cadenza Acquisition LPCV G6001S107 $10.0M 0.85% 1,000,000 SH
47 RMG ML Sports Holdings SHOTU G7610P120 $9.2M 0.78% 925,000 SH
48 Denison Mines Corp DNN 248356107 $8.7M 0.74% 2,857,531 SH
49 Snap Inc SNAP 83304A106 $8.7M 0.74% 1,958,828 SH
50 Snow Rothschild Acquisition Co ISNRU G8251A125 $8.5M 0.72% 850,000 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-08-14 $1.18B 304 0000912282-26-001105
2026-03-31 2026-05-15 $1.16B 244 0000912282-26-000731
2025-12-31 2026-02-09 $1.00B 209 0000912282-26-000275
2025-09-30 2025-11-10 $859.8M 172 0000912282-25-001210