In its 13F for Q2 2024 (holdings as of June 30, 2024, filed August 14, 2024), Twin Securities, Inc. reported 12 stock positions worth $82.9 million . Its top holding was Endeavor Group Hold Class A (EDR) at 39.3% of the portfolio, followed by Cerevel Therapeutics (CERE, 20.6% ) and Hess (HES, 9.3% ). Compared with Q1 2024, it opened 5 new positions, sold out of 2, added to 4 and reduced 3. The biggest buy was Cerevel Therapeutics (CERE, shares +311% ) and the biggest sale an exit from Pioneer Natural Resources (PXD).
Location New York, NY
CIK 0001351351
Portfolio Value $82.9M (Q2 2024) Holdings 12 stocks · $82.9M Holdings quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock % Of Portfolio ▼ Shares Held Total Value Change vs Q1 2024 EDR Endeavor Group Hold Class A 1,203,731 $32.5M Add +13.0% CERE Cerevel Therapeutics Holding 416,657 $17.0M Add +311.4% HES Hess Corp. 52,331 $7.7M Add +2892.1% X United States Steel Corp. 189,503 $7.2M Reduce -55.3% HCP Hashicorp Inc. Class A 165,214 $5.6M New HUBS HubSpot Inc. 5,000 $2.9M New JNPR Juniper Networks Inc. 78,837 $2.9M Add +0.6% SRCL Stericycle Inc. 48,600 $2.8M New ANSS Ansys Inc. 4,489 $1.4M New COP Conocophillips 10,000 $1.1M New AXONICS INC 16,059 $1.1M Reduce -51.9% MANU Manchester United PLC Class A 33,908 $547K Reduce -6.9%
Options reported separately and not counted above: HUBS calls ($44.2M).
Portfolio Sells Q1 2024 → Q2 2024 Portfolio Sells quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock Change vs Q1 2024 % Of Portfolio Change To Portfolio ▲ PXD Pioneer Natural Resources Co. Sold out 0.00% −27.26 X United States Steel Corp. Reduce -55.3% 8.64% −11.44 SWAV Shockwave Medical Inc. Sold out 0.00% −8.93 AXONICS INC Reduce -51.9% 1.30% −1.37 MANU Manchester United PLC Class A Reduce -6.9% 0.66% +0.07
Portfolio Buys Q1 2024 → Q2 2024 Portfolio Buys quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock Change vs Q1 2024 % Of Portfolio Change To Portfolio ▼ CERE Cerevel Therapeutics Holding Add +311.4% 20.55% +15.59 HES Hess Corp. Add +2892.1% 9.31% +9.00 EDR Endeavor Group Hold Class A Add +13.0% 39.26% +7.45 HCP Hashicorp Inc. Class A New 6.72% +6.72 HUBS HubSpot Inc. New 3.56% +3.56 SRCL Stericycle Inc. New 3.41% +3.41 ANSS Ansys Inc. New 1.74% +1.74 COP Conocophillips New 1.38% +1.38 JNPR Juniper Networks Inc. Add +0.6% 3.47% +0.10
Options Activity Q1 2024 → Q2 2024 Security Type Change vs Q1 2024 Underlying Shares Value ▼ HUBS HubSpot Inc. call New 75,000 $44.2M EDR Endeavor Group Hold Class A call Sold out 313,100 $8.1Mbefore exit X United States Steel Corp. put Sold out 102,400 $4.2Mbefore exit KVUE Kenvue Inc. call Sold out 5,800 $1.9Mbefore exit X United States Steel Corp. call Sold out 1,800 $73Kbefore exit
Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.
All Filings Quarter Positions 13F Reported Value Top Holdings Q2 2026 11 $195.8M EA, WBD, APGE, ROKU, KVUE Q1 2026 16 $202.3M EA, WBD, CWAN, HOLX, KVUE Q4 2025 16 $261.1M CYBR, EXAS, EA, WBD, RNAM Q3 2025 13 $198.5M VRNA, K, MRUS, COOP, CYBR Q2 2025 11 $113.0M K, HES, BPMC, SGRY, SPR Q1 2025 13 $174.1M ITCI, K, BECN, HES, HEES Q4 2024 13 $169.6M JNPR, K, HCP, SMAR, HES Q3 2024 12 $85.6M JNPR, EDR, HES, SMAR, SRCL Q2 2024 12 $82.9M EDR, CERE, HES, X, HCP Q1 2024 9 $86.1M EDR, PXD, X, SWAV, CERE