In its 13F for Q2 2026 (holdings as of June 30, 2026, filed August 14, 2026), Twin Securities, Inc. reported 11 stock positions worth $195.8 million . Its top holding was Electronic Arts (EA) at 55.3% of the portfolio, followed by Warner Bros Discovery (WBD, 11.0% ) and Apogee Therapeutics (APGE, 8.1% ). Compared with Q1 2026, it opened 6 new positions, sold out of 11, added to 2 and reduced 2. The biggest buy was Electronic Arts (EA, shares +18% ) and the biggest sale an exit from Clearwater Analytics HDS-A (CWAN).
Location New York, NY
CIK 0001351351
Portfolio Value $195.8M (Q2 2026) Holdings 11 stocks · $195.8M 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 2026 EA Electronic Arts Inc. 528,441 $108.4M Add +18.2% WBD Warner Bros Discovery Inc. 807,012 $21.5M Reduce -37.9% APGE Apogee Therapeutics Inc. 120,000 $15.9M New ROKU Roku Inc. 105,660 $14.6M New KVUE Kenvue Inc. 754,977 $14.4M Add +57.1% BLD Topbuild Corp. 39,948 $14.2M New PSKY Paramount Skydance Class B 334,724 $3.3M New OGN Organon & Co. 175,100 $2.4M New TIC Tic Solutions Inc. 77,339 $626K No change RNA Atrium Therapeutics Inc. 26,517 $357K Reduce -46.9% NSC Norfolk Southern Corp. 652 $205K New
Options reported separately and not counted above: WBD puts ($20.3M), EA puts ($7.4M).
Portfolio Sells Q1 2026 → Q2 2026 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 2026 % Of Portfolio Change To Portfolio ▲ CWAN Clearwater Analytics HDS-A Sold out 0.00% −13.61 HOLX Hologic Inc. Sold out 0.00% −6.69 WBD Warner Bros Discovery Inc. Reduce -37.9% 10.99% −6.66 ACLX Arcellx Inc. Sold out 0.00% −3.06 TERN Terns Pharmaceuticals Inc. Sold out 0.00% −3.02 APLS Apellis Pharmaceuticals Inc. Sold out 0.00% −2.53 RVMD Revolution Medicines Inc. Sold out 0.00% −1.86 OS Onestream Inc. Sold out 0.00% −0.72 TTWO Take-Two Interactive Softwre Sold out 0.00% −0.63 DAWN Day One Biopharmaceuticals I Sold out 0.00% −0.34 RNA Atrium Therapeutics Inc. Reduce -46.9% 0.18% −0.15 MANU Manchester United PLC Class A Sold out 0.00% −0.12 SGRY Surgery Partners Inc. Sold out 0.00% −0.06
Portfolio Buys Q1 2026 → Q2 2026 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 2026 % Of Portfolio Change To Portfolio ▼ EA Electronic Arts Inc. Add +18.2% 55.33% +10.29 APGE Apogee Therapeutics Inc. New 8.13% +8.13 ROKU Roku Inc. New 7.45% +7.45 BLD Topbuild Corp. New 7.23% +7.23 KVUE Kenvue Inc. Add +57.1% 7.37% +3.27 PSKY Paramount Skydance Class B New 1.69% +1.69 OGN Organon & Co. New 1.21% +1.21 NSC Norfolk Southern Corp. New 0.10% +0.10
Options Activity Q1 2026 → Q2 2026 Security Type Change vs Q1 2026 Underlying Shares Value ▼ WBD Warner Bros Discovery Inc. put New 759,600 $20.3M EA Electronic Arts Inc. put New 35,900 $7.4M RVMD Revolution Medicines Inc. put Sold out 39,000 $3.8Mbefore 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