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  • Gurus
  • Event Driven
  • TWIN SECURITIES, INC. (Data extracted from 13F, 13D, 13G and Form 4)

TWIN SECURITIES, INC.

AUM: $224.33 M
13-F Portfolio Value: $206.10 M
Last 13-F Filed: Q1 2026
Concentration in top 10: 97.61%
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Stock Company % Portfolio Shares Held Market Value Change in Shares % Change Quarter End Price Source
ACLXARCELLX INC3.01%53,982$6,198,21353,982New$114.8213F
TERNTERNS PHARMACEUTICALS INC2.97%115,958$6,113,306115,958New$52.7213F
APLSAPELLIS PHARMACEUTICALS INC2.49%127,440$5,126,911127,440New$40.2313F
RVMDREVOLUTION MEDICINES INC (Put)1.84%39,000$3,792,75039,000New$97.2513F
RVMDREVOLUTION MEDICINES INC1.82%38,593$3,753,16938,593New$97.2513F
OSONESTREAM INC0.7%60,372$1,448,92860,372New$2413F
TTWOTAKE-TWO INTERACTIVE SOFTWAR0.62%6,500$1,283,7506,500New$197.513F
DAWNDAY ONE BIOPHARMACEUTICALS I0.33%31,626$678,06131,626New$21.4413F
RNAATRIUM THERAPEUTICS INC0.32%49,913$667,33749,913New$13.3713F