Terminal · Institutions

Every 13F-reported equity position this quarter, with its quarter-over-quarter change — each row traces back to the SEC filing.

Twin Securities, Inc. 13F Holdings -- Portfolio & Top Positions (2026-03-31)

Twin Securities, Inc. (CIK 1351351) reported $206.1M across 14 reported positions in its SEC 13F filing for 2026-03-31. Largest positions: EA ($91.1M, 44.21%), WBD ($35.7M, 17.32%), CWAN ($27.5M, 13.36%), HOLX ($13.5M, 6.57%), KVUE ($8.3M, 4.02%). Source: SEC Form 13F.

RankTickerCompanyValue% PortfolioSharesAction
1EAELECTRONIC ARTS INC$91.1M44.21%446,948Added
2WBDWARNER BROS DISCOVERY INC$35.7M17.32%1.3MAdded
3CWANCLEARWATER ANALYTICS HLDGS I$27.5M13.36%1.2MAdded
4HOLXHOLOGIC INC$13.5M6.57%179,036Added
5KVUEKENVUE INC$8.3M4.02%480,517Added
6RVMDREVOLUTION MEDICINES INC$7.5M3.66%77,593New
7ACLXARCELLX INC$6.2M3.01%53,982New
8TERNTERNS PHARMACEUTICALS INC$6.1M2.97%115,958New
9APLSAPELLIS PHARMACEUTICALS INC$5.1M2.49%127,440New
10OSONESTREAM INC$1.4M0.70%60,372New
11TTWOTAKE-TWO INTERACTIVE SOFTWAR$1.3M0.62%6,500New
12DAWNDAY ONE BIOPHARMACEUTICALS I$678,0610.33%31,626New
13ATRIUM THERAPEUTICS INC$667,3370.32%49,913New
14TICTIC SOLUTIONS INC$508,8910.25%77,339Hold
15MANUMANCHESTER UTD PLC NEW$250,9540.12%14,920Added
16SGRYSURGERY PARTNERS INC$119,4980.06%10,025Trimmed
17MLYSMINERALYS THERAPEUTICS INC$00.00%0Exited
18NSCNORFOLK SOUTHN CORP$00.00%0Exited
19EXASEXACT SCIENCES CORP$00.00%0Exited
20CFLTCONFLUENT INC$00.00%0Exited
21CDTXCIDARA THERAPEUTICS INC$00.00%0Exited
22CDAYDAYFORCE INC$00.00%0Exited
23RNAAVIDITY BIOSCIENCES INC$00.00%0Exited
24CYBRCYBERARK SOFTWARE LTD$00.00%0Exited

Source: SEC Form 13F filings · as of 2026-03-31