Twin Securities, Inc.

Institutional manager — quarterly 13F holdings, Q ending 2026-03-31

Reported value
$206.1M
Q ending 2026-03-31
Prior quarter
$261.7M
Q ending 2025-12-31
Change
-21.2% QoQ · +6.5% YoY
Positions
17
reported holdings

Largest positions

All 17 reported positions, Q ending 2026-03-31. A manager can hold shares, calls and puts on the same security at once — such positions are listed as separate rows. Type: Shares = common stock, Put/Call = option positions (valued at the underlying), Principal = debt. Tickers link to stock pages where covered.
HoldingTickerTypeValueShares
Electronic Arts IncEAShares$91.1M447K
Warner Bros Discovery IncWBDShares$35.7M1.3M
Clearwater Analytics Hldgs IShares$27.5M1.2M
Hologic IncHOLXShares$13.5M179K
Kenvue IncKVUEShares$8.3M481K
Arcellx IncACLXShares$6.2M54K
Terns Pharmaceuticals Inc430Shares$6.1M116K
Apellis Pharmaceuticals IncAPLSShares$5.1M127K
Revolution Medicines IncRVMDPut$3.8M39K
Revolution Medicines IncRVMDShares$3.8M39K
Onestream IncK4FShares$1.4M60K
Take-Two Interactive SoftwarTTWOShares$1.3M7K
Day One Biopharmaceuticals IDAWNGBXShares$678K32K
Atrium Therapeutics IncRNAShares$667K50K
Tic Solutions IncTICShares$509K77K
Manchester Utd Plc NewShares$251K15K
Surgery Partners IncSGRYShares$119K10K

Values as reported in public regulatory filings (USD); holdings are reported quarterly, up to 45 days after quarter end, and may contain reporting errors. Nothing here is investment advice.